Bus from Ontario, CA to San Diego from $30

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Compare all timetables for the bus from Ontario, CA to San Diego

Here is a selection of the cheapest bus trips from the schedule from Ontario, CA to San Diego from various bus operators like FlixBus, Limousine Express or Greyhound US for the next days.
today
from $34
tomorrow
from $34
Wednesday
from $32
Thursday
from $33
Friday
from $30
Saturday
from $36
Sunday
from $46

Cheapest bus trips today

Prices are for one way and one person
  • FlixBus
    6h 20m
    0
    4:40 AM
    Ontario, CA
    Montclair Place
    11:00 AM
    San Diego
    Seaport Village
    0
    FlixBus
    Economy
    $34
  • FlixBus
    6h 0m
    0
    4:40 AM
    Ontario, CA
    Montclair Place
    10:40 AM
    San Diego
    Balboa Park
    0
    FlixBus
    Economy
    $34
  • Limousine Express
    6h 15m
    0
    6:00 AM
    Ontario, CA
    Convention Center
    12:15 PM
    San Diego
    San Ysidro Transit Center
    0
    Limousine Express
    Economy
    $36
  • Limousine Express
    8h 30m
    0
    6:00 AM
    Ontario, CA
    Convention Center
    2:30 PM
    San Diego
    San Ysidro Transit Center
    0
    Limousine Express
    Economy
    $36
  • Greyhound US
    5h 10m
    0
    8:05 AM
    Ontario, CA
    Montclair Place
    1:15 PM
    San Diego
    Old Town Transit Center
    0
    Greyhound US
    Economy
    $38
  • Did you know that if you travel from Ontario, CA to San Diego via Los Angeles, you can save more than $4? You can find the corresponding connections below.
    • Busbud
      5h 25m
      0
      4:40 AM
      Ontario, CA
      Montclair Place
      5:20 AM
      Los Angeles
      Union Station
      0
      Busbud
      Economy
      $6
      • Waiting Time 0h 45m
    • FlixBus
      4h 0m
      0
      6:05 AM
      Los Angeles
      Union Station
      10:05 AM
      San Diego
      San Ysidro Transit Center
      0
      FlixBus
      Economy
      $24
    Travel time is 0h 15m longer, but you will save $4

Cheapest bus trips tomorrow

Prices are for one way and one person
  • FlixBus
    4h 50m
    0
    4:40 AM
    Ontario, CA
    Montclair Place
    9:30 AM
    San Diego
    Old Town Transit Center
    0
    FlixBus
    Economy
    $34
  • FlixBus
    4h 35m
    0
    4:40 AM
    Ontario, CA
    Montclair Place
    9:15 AM
    San Diego
    Old Town Transit Center
    0
    FlixBus
    Economy
    $34
  • Limousine Express
    8h 30m
    0
    6:00 AM
    Ontario, CA
    Convention Center
    2:30 PM
    San Diego
    San Ysidro Transit Center
    0
    Limousine Express
    Economy
    $36
  • Limousine Express
    6h 15m
    0
    6:00 AM
    Ontario, CA
    Convention Center
    12:15 PM
    San Diego
    San Ysidro Transit Center
    0
    Limousine Express
    Economy
    $36
  • Greyhound US
    6h 30m
    0
    5:20 PM
    Ontario, CA
    Montclair Place
    11:50 PM
    San Diego
    Old Town Transit Center
    0
    Greyhound US
    Economy
    $38
  • Did you know that if you travel from Ontario, CA to San Diego via Los Angeles, you can save more than $4? You can find the corresponding connections below.
    • Busbud
      5h 5m
      0
      2:20 PM
      Ontario, CA
      Montclair Place
      3:30 PM
      Los Angeles
      Union Station
      0
      Busbud
      Economy
      $6
      • Waiting Time 0h 5m
    • FlixBus
      3h 50m
      0
      3:35 PM
      Los Angeles
      Union Station
      7:25 PM
      San Diego
      San Ysidro Transit Center
      0
      FlixBus
      Economy
      $24
    Travel time is 0h 30m longer, but you will save $4

Cheapest bus trips Wednesday

Prices are for one way and one person
  • FlixBus
    4h 50m
    0
    4:40 AM
    Ontario, CA
    Montclair Place
    9:30 AM
    San Diego
    Old Town Transit Center
    0
    FlixBus
    Economy
    $32
  • FlixBus
    4h 35m
    0
    4:40 AM
    Ontario, CA
    Montclair Place
    9:15 AM
    San Diego
    Old Town Transit Center
    0
    FlixBus
    Economy
    $32
  • Limousine Express
    8h 30m
    0
    6:00 AM
    Ontario, CA
    Convention Center
    2:30 PM
    San Diego
    San Ysidro Transit Center
    0
    Limousine Express
    Economy
    $35
  • Limousine Express
    6h 15m
    0
    6:00 AM
    Ontario, CA
    Convention Center
    12:15 PM
    San Diego
    San Ysidro Transit Center
    0
    Limousine Express
    Economy
    $35
  • Executive Lines
    2h 30m
    0
    6:50 AM
    Ontario, CA
    S Euclid Ave
    9:20 AM
    San Diego
    San Ysidro Transit Center
    0
    Executive Lines
    Economy
    $40

Cheapest bus trips Thursday

Prices are for one way and one person
  • FlixBus
    7h 10m
    0
    2:20 PM
    Ontario, CA
    Montclair Place
    9:30 PM
    San Diego
    Seaport Village
    0
    FlixBus
    Economy
    $33
  • FlixBus
    6h 0m
    0
    4:40 AM
    Ontario, CA
    Montclair Place
    10:40 AM
    San Diego
    Balboa Park
    0
    FlixBus
    Economy
    $33
  • FlixBus
    4h 50m
    0
    4:40 AM
    Ontario, CA
    Montclair Place
    9:30 AM
    San Diego
    Old Town Transit Center
    0
    FlixBus
    Economy
    $33
  • Greyhound US
    7h 35m
    0
    8:05 AM
    Ontario, CA
    Montclair Place
    3:40 PM
    San Diego
    San Ysidro Transit Center
    0
    Greyhound US
    Economy
    $39
  • Greyhound US
    7h 5m
    0
    5:20 PM
    Ontario, CA
    Montclair Place
    12:25 AM
    San Diego
    San Ysidro Transit Center
    0
    Greyhound US
    Economy
    $39
  • Did you know that if you travel from Ontario, CA to San Diego via Los Angeles, you can save more than $3? You can find the corresponding connections below.
    • Busbud
      4h 35m
      0
      9:40 PM
      Ontario, CA
      Montclair Place
      10:20 PM
      Los Angeles
      Union Station
      0
      Busbud
      Economy
      $6
      • Waiting Time 0h 35m
    • Busbud
      3h 20m
      0
      10:55 PM
      Los Angeles
      University of California (curbside)
      2:15 AM
      San Diego
      San Ysidro Transit Center
      0
      Busbud
      Economy
      $24
    Travel Time is 0h 15m shorter, and you will save $3

Cheapest bus trips Friday

Prices are for one way and one person
  • FlixBus
    7h 10m
    0
    2:20 PM
    Ontario, CA
    Montclair Place
    9:30 PM
    San Diego
    Seaport Village
    0
    FlixBus
    Economy
    $30
  • FlixBus
    6h 20m
    0
    4:40 AM
    Ontario, CA
    Montclair Place
    11:00 AM
    San Diego
    Seaport Village
    0
    FlixBus
    Economy
    $31
  • Limousine Express
    6h 15m
    0
    6:00 AM
    Ontario, CA
    Convention Center
    12:15 PM
    San Diego
    San Ysidro Transit Center
    0
    Limousine Express
    Economy
    $35
  • Limousine Express
    8h 30m
    0
    6:00 AM
    Ontario, CA
    Convention Center
    2:30 PM
    San Diego
    San Ysidro Transit Center
    0
    Limousine Express
    Economy
    $35
  • Executive Lines
    2h 30m
    0
    6:50 AM
    Ontario, CA
    S Euclid Ave
    9:20 AM
    San Diego
    San Ysidro Transit Center
    0
    Executive Lines
    Economy
    $40

Cheapest bus trips Saturday

Prices are for one way and one person
  • Limousine Express
    6h 15m
    0
    6:00 AM
    Ontario, CA
    Convention Center
    12:15 PM
    San Diego
    San Ysidro Transit Center
    0
    Limousine Express
    Economy
    $36
  • Limousine Express
    8h 30m
    0
    6:00 AM
    Ontario, CA
    Convention Center
    2:30 PM
    San Diego
    San Ysidro Transit Center
    0
    Limousine Express
    Economy
    $36
  • FlixBus
    6h 40m
    0
    12:05 PM
    Ontario, CA
    Montclair Place
    6:45 PM
    San Diego
    San Ysidro Transit Center
    0
    FlixBus
    Economy
    $53
  • Greyhound US
    7h 45m
    0
    9:35 AM
    Ontario, CA
    Montclair Place
    5:20 PM
    San Diego
    San Ysidro Transit Center
    0
    Greyhound US
    Economy
    $53
  • Greyhound US
    7h 5m
    0
    5:20 PM
    Ontario, CA
    Montclair Place
    12:25 AM
    San Diego
    San Ysidro Transit Center
    0
    Greyhound US
    Economy
    $53
  • Did you know that if you travel from Ontario, CA to San Diego via Los Angeles, you can save more than $10? You can find the corresponding connections below.
    • Busbud
      7h 40m
      0
      2:20 PM
      Ontario, CA
      Montclair Place
      3:30 PM
      Los Angeles
      Union Station
      0
      Busbud
      Economy
      $6
      • Waiting Time 1h 0m
    • FlixBus
      5h 30m
      0
      4:30 PM
      Los Angeles
      Union Station
      10:00 PM
      San Diego
      San Ysidro Transit Center
      0
      FlixBus
      Economy
      $20
    Travel time is 1h 25m longer, but you will save $10

Cheapest bus trips Sunday

Prices are for one way and one person
  • FlixBus
    5h 25m
    0
    4:40 AM
    Ontario, CA
    Montclair Place
    10:05 AM
    San Diego
    San Ysidro Transit Center
    0
    FlixBus
    Economy
    $46
  • FlixBus
    6h 40m
    0
    12:05 PM
    Ontario, CA
    Montclair Place
    6:45 PM
    San Diego
    San Ysidro Transit Center
    0
    FlixBus
    Economy
    $46
  • FlixBus
    7h 40m
    0
    2:20 PM
    Ontario, CA
    Montclair Place
    10:00 PM
    San Diego
    San Ysidro Transit Center
    0
    FlixBus
    Economy
    $46
  • Greyhound US
    7h 35m
    0
    2:25 PM
    Ontario, CA
    Montclair Place
    10:00 PM
    San Diego
    San Ysidro Transit Center
    0
    Greyhound US
    Economy
    $46
  • Greyhound US
    7h 5m
    0
    5:20 PM
    Ontario, CA
    Montclair Place
    12:25 AM
    San Diego
    San Ysidro Transit Center
    0
    Greyhound US
    Economy
    $46
  • Did you know that if you travel from Ontario, CA to San Diego via Los Angeles, you can save more than $20? You can find the corresponding connections below.
    • Busbud
      7h 40m
      0
      2:20 PM
      Ontario, CA
      Montclair Place
      3:30 PM
      Los Angeles
      Union Station
      0
      Busbud
      Economy
      $6
      • Waiting Time 1h 0m
    • FlixBus
      5h 30m
      0
      4:30 PM
      Los Angeles
      Union Station
      10:00 PM
      San Diego
      San Ysidro Transit Center
      0
      FlixBus
      Economy
      $20
    Travel time is 2h 15m longer, but you will save $20

Frequency of bus connections between Ontario, CA and San Diego

See here how frequent the connections between Ontario, CA and San Diego are, during different times and days of the week.
Monday is the busiest day, with more than 40 daily buses from Ontario, CA to San Diego. Thursday has instead the fewest connections, with only 14 daily coaches between Ontario, CA and San Diego.
The busiest time of the day is the Afternoon, with 76 buses from Ontario, CA to San Diego, while Evening sees the fewest connections between Ontario, CA and San Diego, with 32 offers.

Facts about the bus from Ontario, CA to San Diego

Compare all providers like FlixBus, Limousine Express and Greyhound US that travel 27 times every day by bus from Ontario, CA to San Diego in one click! Book your bus ticket from Ontario, CA to San Diego starting from $30!

Cheapest Bus $30
Fastest Bus 2h 30m
Earliest Bus 4:40 AM
Latest Bus 9:05 PM
Daily Bus Routes 27 Ø
Distance 97.1 miles
Bus Companies FlixBus, Limousine Express, Greyhound US, Executive Lines and Tufesa International

Cheapest bus connections from Ontario, CA to San Diego

Every day, 27 buses from 5 bus companies leave Ontario, CA for San Diego: in the table below, you will find the cheapest prices for a bus ticket for this route, starting from 05/19/2025 and for the following days.

Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday 05/18
Monday 05/19
$34
Tuesday 05/20
$34
Wednesday 05/21
$45
Thursday 05/22
$33
Friday 05/23
$30
Saturday 05/24
$36
Sunday 05/25
$47
Monday 05/26
$36
Tuesday 05/27
Wednesday 05/28
$45
Thursday 05/29
Friday 05/30
Saturday 05/31
$23
Sunday 06/01
Monday 06/02
$36
Tuesday 06/03
Wednesday 06/04
$30
Thursday 06/05
$34
Friday 06/06
Saturday 06/07
$23
Sunday 06/08
Monday 06/09
$33
Tuesday 06/10
$31
Wednesday 06/11
Thursday 06/12
$24
Friday 06/13
Saturday 06/14

The cheapest time to travel from Ontario, CA to San Diego

See here on which day and which time of the day you can find the cheapest bus ticket from Ontario, CA to San Diego, for the next 30 days.
With a price starting from $30, Friday is the cheapest day for a bus from Ontario, CA to San Diego. Sunday instead is the most expensive day with prices starting from $46.
Afternoon is the cheapest day time for bus tickets from Ontario, CA to San Diego, with $30. Morning is the most expensive time of the day with prices starting from $35.

How to save money travelling from Ontario, CA to San Diego

Travel can be expensive, but it doesn't need to be! Do you want to avoid paying a terrible price for your trip? Then follow these quick steps to save money:

Book the ticket from Ontario, CA to San Diego in advance! The earlier you book, the cheaper usually the price is. Also, you will be sure to have a place on the bus from Ontario, CA to San Diego, compared instead if you buy it at the last moment, or directly at the station.

If you can, avoid travelling at peak times. Instead of weekend, try travelling during the week. Travelling in the evening or at night it’s also cheaper, and later buses from Ontario, CA to San Diego are also emptier.

Beloved bus companies from Ontario, CA to San Diego

These are the most booked bus companies between Ontario, CA to San Diego from our users.

FlixBus from Ontario, CA to San Diego

FlixBus

Here you will find the key facts about the FlixBus bus route Ontario, CA to San Diego:

Cheapest Price $30
Fastest Bus 4h 5m
Earliest Bus 4:40 AM
Last Bus 2:20 PM
Daily Connections 9 Ø
Found on 5/17/2025

Greyhound US from Ontario, CA to San Diego

Greyhound US

Here you will find the key facts about the Greyhound US bus route Ontario, CA to San Diego:

Cheapest Price $38
Fastest Bus 4h 45m
Earliest Bus 8:05 AM
Last Bus 9:05 PM
Daily Connections 7 Ø
Found on 5/17/2025

Limousine Express from Ontario, CA to San Diego

Limousine Express

Here you will find the key facts about the Limousine Express bus route Ontario, CA to San Diego:

Cheapest Price $35
Fastest Bus 4h 0m
Earliest Bus 6:00 AM
Last Bus 10:25 PM
Daily Connections 12 Ø
Found on 5/15/2025

All bus stations and stops in Ontario, CA and San Diego

In the map below, you can see where to find all bus stations in Ontario, CA and San Diego.

Service and Comfort on the bus from Ontario, CA to San Diego

Want to know which seat classes are available on the buses from Ontario, CA to San Diego? Or which bus companies serve the route Ontario, CA to San Diego? Below you will find answers to your questions.

FAQs about the Ontario, CA to San Diego bus

How much does a Ontario, CA San Diego bus trip cost?

This depends on, among other things, the day and time of travel. The cheapest trip is available from $30 and takes 7h 10m to reach San Diego. Compare offers to save money!

How much could I save by comparing buses from Ontario, CA to San Diego?

This route is offered by 5 companies with a range of ticket prices between $30 and $54. Thus, we recommend booking your ticket as early as possible to make sure you get the cheapest bus ticket to San Diego.

On average, how many connections are available from Ontario, CA to San Diego each day?

Every day, the Ontario, CA to San Diego bus route is served by approximately 27 connections. With our search, you can compare bus times to find the perfect trip.

How long does a bus journey from Ontario, CA to San Diego take?

The fastest bus from Ontario, CA to San Diego is offered by Executive Lines and takes 2h 30m. Bus tickets for this connection cost $42. In this context, bear in mind that the journey can take longer due to traffic.

What time is the first bus from Ontario, CA to San Diego?

The earliest bus arriving in San Diego from Ontario, CA starts at 4:40 AM. However, information regarding departure times may differ on weekends and holidays. Simply use our search to find exact times for your planned travel date.

What time is the last bus from Ontario, CA to San Diego?

The latest bus trip departing from Ontario, CA for San Diego starts at 9:05 PM. Please note that departure times may differ on weekends and holidays. So just use our search to find the exact times for your planned travel date.

Which bus companies operate the Ontario, CA San Diego route?

When traveling by bus from Ontario, CA to San Diego, passengers can travel with FlixBus, Limousine Express and Greyhound US. With our search, you can compare all available bus tickets to book the one that works for you.

Is there a direct bus between Ontario, CA and San Diego?

You can check all the direct connections between Ontario, CA and San Diego by using our search and looking at the Changes section in our filters. These are some of the companies which offer a direct bus: FlixBus, Limousine Express and Greyhound US.

What can I take with me on the Ontario, CA to San Diego bus route?

Depending on which provider you travel with, what you're allowed to bring with you can vary. Generally, you can take a suitcase and hand luggage with you on the Ontario, CA San Diego bus route free of charge. Simply use our search to find a bus that is best suited to your needs for your planned travel date.

What equipment is available for the Ontario, CA San Diego bus route?

The equipment on board differs depending on the provider. However, many long-distance buses have WiFi so you can tell your friends your exact location during the journey. To make traveling even more pleasant, air conditioning systems provide ventilation. It is best to use our search to get precise information about the equipment of the bus from Ontario, CA to San Diego on your planned travel date.

Available seat classes which are offered on the bus route Ontario, CA to San Diego

Economy
Economy

The cheapest option available for your ticket, it usually comes with reclinable seats and AC.

More bus routes to Ontario, CA and to San Diego

Here’s an overview of the most popular bus routes to Ontario, CA and to San Diego. Simply click on the connection of your choice, and you will find all the details about your bus route!
Buses to Ontario, CA from Las Vegas Buses to Ontario, CA from Las Vegas
Buses from San Francisco to Ontario, CA Buses from San Francisco to Ontario, CA
Bus to Ontario, CA from Sacramento Bus to Ontario, CA from Sacramento
Buses to Ontario, CA from San Bernardino, CA Buses to Ontario, CA from San Bernardino, CA
Buses to San Diego from Yuma, AZ Buses to San Diego from Yuma, AZ
Temecula, CA to San Diego bus Temecula, CA to San Diego bus
Buses from Rosarito, BC to San Diego Buses from Rosarito, BC to San Diego
Buses from Ensenada to San Diego Buses from Ensenada to San Diego
Popular Airport Shuttles to Ontario, CA and to San Diego
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