How to get from St. Louis, MO to Phoenix, AZ

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What is the best way to travel from St. Louis, MO to Phoenix, AZ?

Looking for a trip? Compare all the available Flights and Buses for the journey to Phoenix, AZ from St. Louis, MO. Check between different modes of transportation, look for the cheapest tickets, fastest rides and most popular stations, and see all 1 available companies to find your perfect trip!
Flight is the cheapest and fastest way on this route
Transport type
Travel time
Cheapest price
Average price
Daily departures
Bus
29h 30m
$103
$113
7
Flight
5h 25m
$79
$257
96

What is the cheapest way to reach Phoenix, AZ from St. Louis, MO?

You can get to Phoenix, AZ with just $79 by taking a Flight from Frontier Airlines, but you can find many more cheap offers: we have selected the best ones for next few days here for you.

Monday
from $80
Tuesday
from $103
Wednesday
from $80
Thursday
from $103
Friday
from $82
Saturday
from $80
Sunday
from $79

    Cheapest Flights Monday

  • Frontier Airlines
    6h 2m
    0
    3:21 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    7:23 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from $80
  • Frontier Airlines
    46h 2m
    0
    8:23 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    4:25 PM
    Phoenix-Mesa Gateway Airport
    Bus Stop
    0
    Frontier Airlines
    Economy
    from $193
  • United Airlines
    9h 13m
    0
    7:45 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    2:58 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from $221
  • Allegiant Air
    52h 33m
    0
    9:36 AM
    MidAmerica St. Louis Airport
    MidAmerica St. Louis Airport
    12:09 PM
    Phoenix-Mesa Gateway Airport
    Bus Stop
    0
    Allegiant Air
    Economy
    from $225
  • Frontier Airlines
    45h 10m
    0
    4:59 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    12:09 PM
    Phoenix-Mesa Gateway Airport
    Bus Stop
    0
    Frontier Airlines
    Economy
    from $270
  • Alaska Airlines
    12h 46m
    0
    7:00 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    5:46 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Alaska Airlines
    Economy
    from $298
  • Cheapest Buses Monday

  • Greyhound US
    30h 50m
    0
    1:20 AM
    St. Louis, MO
    Gateway Station
    6:10 AM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $106
  • Greyhound US
    30h 0m
    0
    8:40 AM
    St. Louis, MO
    Gateway Station
    12:40 PM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $106
  • Greyhound US
    29h 30m
    0
    9:10 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    12:40 PM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $110

    Cheapest Buses Tuesday

  • Greyhound US
    30h 50m
    0
    1:20 AM
    St. Louis, MO
    Gateway Station
    6:10 AM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $103
  • Greyhound US
    30h 0m
    0
    8:40 AM
    St. Louis, MO
    Gateway Station
    12:40 PM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $103
  • Greyhound US
    29h 30m
    0
    9:10 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    12:40 PM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $107
  • Cheapest Flights Tuesday

  • Frontier Airlines
    8h 19m
    0
    4:59 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    11:18 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from $127
  • Alaska Airlines
    10h 2m
    0
    7:00 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    3:02 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Alaska Airlines
    Economy
    from $182
  • Hawaiian Airlines
    10h 53m
    0
    7:00 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    3:53 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Hawaiian Airlines
    Economy
    from $188
  • Frontier Airlines
    21h 10m
    0
    4:59 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    12:09 PM
    Phoenix-Mesa Gateway Airport
    Bus Stop
    0
    Frontier Airlines
    Economy
    from $225
  • United Airlines
    7h 9m
    0
    6:00 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    11:09 AM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from $227
  • American Airlines
    11h 19m
    0
    5:20 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    2:39 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    American Airlines
    Economy
    from $269

    Cheapest Flights Wednesday

  • Frontier Airlines
    8h 4m
    0
    4:59 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    11:03 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from $80
  • Alaska Airlines
    10h 0m
    0
    7:00 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    3:00 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Alaska Airlines
    Economy
    from $208
  • Alaska Airlines
    9h 13m
    0
    4:46 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    11:59 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Alaska Airlines
    Economy
    from $208
  • United Airlines
    6h 4m
    0
    6:05 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    10:09 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from $222
  • Frontier Airlines
    49h 28m
    0
    4:59 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    4:27 PM
    Phoenix-Mesa Gateway Airport
    Bus Stop
    0
    Frontier Airlines
    Economy
    from $308
  • Frontier Airlines
    31h 5m
    0
    4:59 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    10:04 PM
    Phoenix-Mesa Gateway Airport
    Bus Stop
    0
    Frontier Airlines
    Economy
    from $340
  • Cheapest Buses Wednesday

  • Greyhound US
    30h 50m
    0
    1:20 AM
    St. Louis, MO
    Gateway Station
    6:10 AM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $103
  • Greyhound US
    30h 0m
    0
    8:40 AM
    St. Louis, MO
    Gateway Station
    12:40 PM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $103
  • Greyhound US
    29h 30m
    0
    9:10 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    12:40 PM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $107

    Cheapest Buses Thursday

  • Greyhound US
    30h 50m
    0
    1:20 AM
    St. Louis, MO
    Gateway Station
    6:10 AM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $103
  • Greyhound US
    30h 0m
    0
    8:40 AM
    St. Louis, MO
    Gateway Station
    12:40 PM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $106
  • Greyhound US
    39h 40m
    0
    4:30 PM
    St. Louis, MO
    Gateway Station
    6:10 AM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $148
  • Cheapest Flights Thursday

  • Frontier Airlines
    5h 36m
    0
    8:06 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    11:42 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from $105
  • Frontier Airlines
    39h 3m
    0
    8:06 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    9:09 AM
    Phoenix-Mesa Gateway Airport
    Bus Stop
    0
    Frontier Airlines
    Economy
    from $207
  • Allegiant Air
    41h 33m
    0
    5:36 PM
    MidAmerica St. Louis Airport
    MidAmerica St. Louis Airport
    9:09 AM
    Phoenix-Mesa Gateway Airport
    Bus Stop
    0
    Allegiant Air
    Economy
    from $217
  • Frontier Airlines
    36h 44m
    0
    11:25 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    10:09 PM
    Phoenix-Mesa Gateway Airport
    Bus Stop
    0
    Frontier Airlines
    Economy
    from $221
  • Allegiant Air
    10h 41m
    0
    12:14 PM
    MidAmerica St. Louis Airport
    MidAmerica St. Louis Airport
    8:55 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Allegiant Air
    Economy
    from $236
  • Allegiant Air
    37h 26m
    0
    10:43 AM
    MidAmerica St. Louis Airport
    MidAmerica St. Louis Airport
    10:09 PM
    Phoenix-Mesa Gateway Airport
    Bus Stop
    0
    Allegiant Air
    Economy
    from $277

    Cheapest Flights Friday

  • Frontier Airlines
    8h 19m
    0
    4:59 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    11:18 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from $82
  • Frontier Airlines
    20h 54m
    0
    9:58 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    4:52 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from $87
  • Frontier Airlines
    45h 6m
    0
    8:06 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    3:12 PM
    Phoenix-Mesa Gateway Airport
    Bus Stop
    0
    Frontier Airlines
    Economy
    from $218
  • United Airlines
    6h 4m
    0
    6:05 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    10:09 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from $242
  • United Airlines
    7h 26m
    0
    7:45 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    1:11 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from $247
  • Frontier Airlines
    27h 21m
    0
    4:59 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    6:20 PM
    Phoenix-Mesa Gateway Airport
    Bus Stop
    0
    Frontier Airlines
    Economy
    from $260
  • Cheapest Buses Friday

  • Greyhound US
    30h 50m
    0
    1:20 AM
    St. Louis, MO
    Gateway Station
    6:10 AM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $110
  • Greyhound US
    30h 0m
    0
    8:40 AM
    St. Louis, MO
    Gateway Station
    12:40 PM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $113
  • Greyhound US
    29h 30m
    0
    9:10 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    12:40 PM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $113
  • Greyhound US
    39h 40m
    0
    4:30 PM
    St. Louis, MO
    Gateway Station
    6:10 AM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $151

    Cheapest Flights Saturday

  • Frontier Airlines
    8h 2m
    0
    4:16 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    10:18 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from $80
  • Frontier Airlines
    5h 25m
    0
    8:17 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    11:42 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from $80
  • Frontier Airlines
    28h 10m
    0
    8:17 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    10:27 PM
    Phoenix-Mesa Gateway Airport
    Bus Stop
    0
    Frontier Airlines
    Economy
    from $167
  • United Airlines
    7h 9m
    0
    6:00 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    11:09 AM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from $171
  • United Airlines
    6h 50m
    0
    6:30 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    11:20 AM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from $171
  • Frontier Airlines
    25h 57m
    0
    8:17 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    8:14 PM
    Phoenix-Mesa Gateway Airport
    Bus Stop
    0
    Frontier Airlines
    Economy
    from $197

    Cheapest Flights Sunday

  • Frontier Airlines
    8h 19m
    0
    4:59 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    11:18 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from $79
  • Frontier Airlines
    36h 25m
    0
    11:44 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    10:09 PM
    Phoenix-Mesa Gateway Airport
    Bus Stop
    0
    Frontier Airlines
    Economy
    from $236
  • United Airlines
    6h 4m
    0
    6:05 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    10:09 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from $252
  • Frontier Airlines
    21h 32m
    0
    4:59 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    12:31 PM
    Phoenix-Mesa Gateway Airport
    Bus Stop
    0
    Frontier Airlines
    Economy
    from $269
  • Allegiant Air
    38h 20m
    0
    11:01 AM
    MidAmerica St. Louis Airport
    MidAmerica St. Louis Airport
    11:21 PM
    Phoenix-Mesa Gateway Airport
    Bus Stop
    0
    Allegiant Air
    Economy
    from $286
  • Alaska Airlines
    10h 0m
    0
    7:00 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    3:00 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Alaska Airlines
    Economy
    from $306
  • Cheapest Buses Sunday

  • Greyhound US
    30h 50m
    0
    1:20 AM
    St. Louis, MO
    Gateway Station
    6:10 AM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $112
  • Greyhound US
    30h 0m
    0
    8:40 AM
    St. Louis, MO
    Gateway Station
    12:40 PM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $116
  • Greyhound US
    29h 30m
    0
    9:10 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    12:40 PM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $120

What are the fastest trips from St. Louis, MO to Phoenix, AZ?

You can get to Phoenix, AZ from St. Louis, MO in just 5h 25m with a Flight from Frontier Airlines. This is not the only option, and you can click on any of the offers below to compare it with the other modes of transportations.

Monday
from 6h 2m
Tuesday
from 7h 9m
Wednesday
from 6h 4m
Thursday
from 5h 36m
Friday
from 6h 4m
Saturday
from 5h 25m
Sunday
from 6h 4m

    Fastest Flights Monday

  • Frontier Airlines
    6h 2m
    0
    3:21 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    7:23 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from $80
  • United Airlines
    9h 13m
    0
    7:45 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    2:58 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from $221
  • Hawaiian Airlines
    10h 2m
    0
    7:00 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    3:02 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Hawaiian Airlines
    Economy
    from $329
  • American Airlines
    11h 19m
    0
    5:20 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    2:39 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    American Airlines
    Economy
    from $314
  • Alaska Airlines
    12h 46m
    0
    7:00 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    5:46 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Alaska Airlines
    Economy
    from $298
  • Frontier Airlines
    45h 10m
    0
    4:59 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    12:09 PM
    Phoenix-Mesa Gateway Airport
    Bus Stop
    0
    Frontier Airlines
    Economy
    from $270
  • Fastest Buses Monday

  • Greyhound US
    29h 30m
    0
    9:10 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    12:40 PM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $110
  • Greyhound US
    30h 0m
    0
    8:40 AM
    St. Louis, MO
    Gateway Station
    12:40 PM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $106
  • Greyhound US
    30h 50m
    0
    1:20 AM
    St. Louis, MO
    Gateway Station
    6:10 AM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $106

    Fastest Flights Tuesday

  • United Airlines
    7h 9m
    0
    6:00 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    11:09 AM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from $227
  • Frontier Airlines
    8h 19m
    0
    4:59 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    11:18 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from $127
  • Alaska Airlines
    10h 2m
    0
    7:00 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    3:02 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Alaska Airlines
    Economy
    from $182
  • Hawaiian Airlines
    10h 53m
    0
    7:00 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    3:53 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Hawaiian Airlines
    Economy
    from $188
  • American Airlines
    11h 19m
    0
    5:20 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    2:39 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    American Airlines
    Economy
    from $269
  • Frontier Airlines
    21h 10m
    0
    4:59 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    12:09 PM
    Phoenix-Mesa Gateway Airport
    Bus Stop
    0
    Frontier Airlines
    Economy
    from $225
  • Fastest Buses Tuesday

  • Greyhound US
    29h 30m
    0
    9:10 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    12:40 PM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $107
  • Greyhound US
    30h 0m
    0
    8:40 AM
    St. Louis, MO
    Gateway Station
    12:40 PM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $103
  • Greyhound US
    30h 50m
    0
    1:20 AM
    St. Louis, MO
    Gateway Station
    6:10 AM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $103

    Fastest Flights Wednesday

  • United Airlines
    6h 4m
    0
    6:05 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    10:09 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from $222
  • Frontier Airlines
    8h 4m
    0
    4:59 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    11:03 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from $80
  • Alaska Airlines
    9h 13m
    0
    4:46 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    11:59 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Alaska Airlines
    Economy
    from $208
  • Alaska Airlines
    10h 0m
    0
    7:00 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    3:00 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Alaska Airlines
    Economy
    from $208
  • Frontier Airlines
    25h 2m
    0
    4:59 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    4:01 PM
    Phoenix-Mesa Gateway Airport
    Bus Stop
    0
    Frontier Airlines
    Economy
    from $374
  • Frontier Airlines
    31h 5m
    0
    4:59 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    10:04 PM
    Phoenix-Mesa Gateway Airport
    Bus Stop
    0
    Frontier Airlines
    Economy
    from $340
  • Fastest Buses Wednesday

  • Greyhound US
    29h 30m
    0
    9:10 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    12:40 PM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $107
  • Greyhound US
    30h 0m
    0
    8:40 AM
    St. Louis, MO
    Gateway Station
    12:40 PM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $103
  • Greyhound US
    30h 50m
    0
    1:20 AM
    St. Louis, MO
    Gateway Station
    6:10 AM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $103

    Fastest Flights Thursday

  • Frontier Airlines
    5h 36m
    0
    8:06 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    11:42 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from $105
  • United Airlines
    6h 4m
    0
    6:05 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    10:09 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from $282
  • Alaska Airlines
    9h 13m
    0
    4:46 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    11:59 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Alaska Airlines
    Economy
    from $338
  • Allegiant Air
    10h 41m
    0
    12:14 PM
    MidAmerica St. Louis Airport
    MidAmerica St. Louis Airport
    8:55 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Allegiant Air
    Economy
    from $236
  • American Airlines
    12h 4m
    0
    12:27 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    10:31 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    American Airlines
    Economy
    from $315
  • Frontier Airlines
    36h 44m
    0
    11:25 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    10:09 PM
    Phoenix-Mesa Gateway Airport
    Bus Stop
    0
    Frontier Airlines
    Economy
    from $221
  • Fastest Buses Thursday

  • Greyhound US
    30h 0m
    0
    8:40 AM
    St. Louis, MO
    Gateway Station
    12:40 PM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $106
  • Greyhound US
    30h 50m
    0
    1:20 AM
    St. Louis, MO
    Gateway Station
    6:10 AM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $103
  • Greyhound US
    39h 40m
    0
    4:30 PM
    St. Louis, MO
    Gateway Station
    6:10 AM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $148

    Fastest Flights Friday

  • United Airlines
    6h 4m
    0
    6:05 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    10:09 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from $242
  • United Airlines
    7h 26m
    0
    7:45 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    1:11 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from $247
  • Frontier Airlines
    8h 19m
    0
    4:59 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    11:18 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from $82
  • Alaska Airlines
    10h 0m
    0
    7:00 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    3:00 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Alaska Airlines
    Economy
    from $321
  • Frontier Airlines
    20h 54m
    0
    9:58 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    4:52 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from $87
  • Frontier Airlines
    27h 21m
    0
    4:59 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    6:20 PM
    Phoenix-Mesa Gateway Airport
    Bus Stop
    0
    Frontier Airlines
    Economy
    from $260
  • Fastest Buses Friday

  • Greyhound US
    29h 30m
    0
    9:10 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    12:40 PM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $113
  • Greyhound US
    30h 0m
    0
    8:40 AM
    St. Louis, MO
    Gateway Station
    12:40 PM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $113
  • Greyhound US
    30h 50m
    0
    1:20 AM
    St. Louis, MO
    Gateway Station
    6:10 AM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $110
  • Greyhound US
    39h 40m
    0
    4:30 PM
    St. Louis, MO
    Gateway Station
    6:10 AM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $151

    Fastest Flights Saturday

  • Frontier Airlines
    5h 25m
    0
    8:17 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    11:42 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from $80
  • United Airlines
    6h 50m
    0
    6:30 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    11:20 AM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from $171
  • United Airlines
    7h 9m
    0
    6:00 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    11:09 AM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from $171
  • Frontier Airlines
    8h 2m
    0
    4:16 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    10:18 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from $80
  • Alaska Airlines
    10h 0m
    0
    7:00 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    3:00 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Alaska Airlines
    Economy
    from $402
  • Frontier Airlines
    25h 57m
    0
    8:17 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    8:14 PM
    Phoenix-Mesa Gateway Airport
    Bus Stop
    0
    Frontier Airlines
    Economy
    from $197

    Fastest Flights Sunday

  • United Airlines
    6h 4m
    0
    6:05 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    10:09 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from $252
  • Frontier Airlines
    8h 19m
    0
    4:59 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    11:18 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from $79
  • Alaska Airlines
    10h 0m
    0
    7:00 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    3:00 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Alaska Airlines
    Economy
    from $306
  • Allegiant Air
    10h 11m
    0
    12:14 PM
    MidAmerica St. Louis Airport
    MidAmerica St. Louis Airport
    8:25 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Allegiant Air
    Economy
    from $386
  • American Airlines
    11h 10m
    0
    5:51 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    3:01 PM
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    American Airlines
    Economy
    from $616
  • Frontier Airlines
    21h 32m
    0
    4:59 PM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    12:31 PM
    Phoenix-Mesa Gateway Airport
    Bus Stop
    0
    Frontier Airlines
    Economy
    from $269
  • Fastest Buses Sunday

  • Greyhound US
    29h 30m
    0
    9:10 AM
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    12:40 PM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $120
  • Greyhound US
    30h 0m
    0
    8:40 AM
    St. Louis, MO
    Gateway Station
    12:40 PM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $116
  • Greyhound US
    30h 50m
    0
    1:20 AM
    St. Louis, MO
    Gateway Station
    6:10 AM
    Phoenix, AZ
    Bus Station
    0
    Greyhound US
    Economy
    $112
Here you will find all operators and timetables for a Bus from St. Louis, MO to Phoenix, AZ

What are the most popular stations in St. Louis, MO and Phoenix, AZ?

In St. Louis, MO, you will usually depart from Gateway Station, Lindbergh @ Hackberry NB Bus Stop or Skinker Boulevard, while in Phoenix, AZ you will be arriving at Washington St & 4th Av Bus Stop, 7th St & Roosevelt St Bus Stop or 24th St & Jefferson St Station, but there are many more stops to explore in both locations.

How do I decide? Some tips and tricks from our experience

Are you having trouble deciding on how to get to Phoenix, AZ from St. Louis, MO? With 13 connections between 1 Flight and Bus operators, it can be difficult to find the one ride that will make you happy. But we have some tips that can help you make the best informed decision. First of all, the best trip is always the one that meets all your needs, so make a list of all the things that you want from this journey and look for something that will satisfy all of them. Here we will go through some of the factors mostly commonly taken into consideration.

Look for the lowest price

Ticket price is usually the main concern: even if you can afford to pay more, why do it if there are cheaper options? Saving on the trip means that you can spend more on the vacation itself! Between St. Louis, MO and Phoenix, AZ, you can pay as low as $79 with a Flight from Frontier Airlines.

Travel duration

Time is also an important factor. An earlier departure may allow you to see a beautiful sunset or relax before an important event. And remember, time is money, so paying more for a shorter trip may be well worth it. For longer distances, flights are without doubt the best options, but be mindful of airport times and possible delays: a high-speed train may end up cheaper and faster! Here the quicker option is definitely the Flight from Frontier Airlines: you will get to Phoenix, AZ in just 5h 25m.

Comfort makes all the difference

You should always take into account what your personal travelling preferences are. Is one hand luggage enough, or are you trasporting more? Would you like to have a snack during the journey? Can you relax in a busy compartment, or do you need space for yourself? Even among the same mode of transportation, different companies will offer you varying levels of comfort and amenities. The main operators connecting St. Louis, MO and Phoenix, AZ are Frontier Airlines, Greyhound US and Allegiant Air, but be sure to check what they have to offer!

Save money with deals, and always compare

One last tip? Even if you live in St. Louis, MO and Phoenix, AZ is your only destination, it may be wise to check the offers from and to nearby cities or, if you are flyng, nearby airports. Check the trips from Sauget, IL or to Phoenix Sky Harbor Airport, and look at flights from St. Louis Lambert Airport, and landing at Phoenix-Deer Valley Airport. Comparing different routes may allow you to find deals or promotions you were not aware of. Consider also signing up to CheckMyBus to see even more exclusive promotions!

Which companies offer a trip from St. Louis, MO to Phoenix, AZ?

The most popular companies between St. Louis, MO and Phoenix, AZ, are Frontier Airlines, Greyhound US and Allegiant Air. Be sure to check their seat class offers and the amenities that they provide.

Bus companies: Greyhound US

Airlines: Frontier Airlines, Allegiant Air, United Airlines and 3 more.

All you need to know when you travel from St. Louis, MO to Phoenix, AZ

Check all information on comfort and services on all modes of transports from St. Louis, MO to Phoenix, AZ. See which seat classes are available, and what amenities are other advantages offered by the operators on your journey.

FAQs about the trip from St. Louis, MO to Phoenix, AZ

How can I reach Phoenix, AZ from St. Louis, MO?

Every day, there are on average 13 connections between Flight and Bus, with which you can get to Phoenix, AZ from St. Louis, MO.

How far is Phoenix, AZ from St. Louis, MO?

The distance between St. Louis, MO and Phoenix, AZ is 1,270.1 miles.

What is the most ecofriendly mode of transport between St. Louis, MO and Phoenix, AZ?

Trains and buses are by far the greenest options, with trains surpassing buses on longer routes. Planes will always be the worst polluters, especially in shorter flights, were the emissions from the takeoff and landing are less offset by the distance. On this particular route, a bus will emit, per person, a total of 55 kgs of CO2, a train 72 kgs, a car 347 kgs, and a flight 503 kgs.

What is the cheapest mode of transport from St. Louis, MO to Phoenix, AZ?

You can get to Phoenix, AZ with just $79 by taking a Flight from Frontier Airlines.

What is the fastest way to get from St. Louis, MO to Phoenix, AZ?

While a plane is travelling fastest boarding and transfer to airport consumes a lot of time. Usually, high speed trains are better than flights if pure train travel time is below 4 hours. For this particular route, you can get to Phoenix, AZ in just 5h 25m with a Flight from Frontier Airlines.

More routes to St. Louis, MO and to Phoenix, AZ

Looking for more options? Here you can see the most popular routes to St. Louis, MO and to Phoenix, AZ. Simply click on a connection, and you’ll find all the details about the route!

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