Bus Milton Keynes to Cardiff: Compare prices and save money

Compare all timetables for the bus from Milton Keynes to Cardiff

Here is a selection of the cheapest bus trips from the schedule from Milton Keynes to Cardiff from various bus operators like National Express or FlixBus for the next days.

today

tomorrow

Friday

$18

Saturday

$17

Sunday

$17

Monday

$17

Tuesday

$17

Cheapest bus trips Friday
BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Seat classes	Price
National Express	6h 15m	5:20 PM	Milton Keynes	Coachway	11:35 PM	Cardiff	Coach Station	Economy	$18	A Bus from National Express goes from Coachway, Milton Keynes (United Kingdom) at 5/8/2026 5:20:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 5/8/2026 11:35:00 PM. 50 Economy ticket for $18 per person are available. Travel duration is 6h 15m
National Express	6h 4m	5:55 PM	Milton Keynes	Coachway	11:59 PM	Cardiff	Coach Station	Economy	$21	A Bus from National Express goes from Coachway, Milton Keynes (United Kingdom) at 5/8/2026 5:55:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 5/8/2026 11:59:00 PM. 50 Economy ticket for $21 per person are available. Travel duration is 6h 4m
National Express	5h 30m	9:25 PM	Milton Keynes	Coachway	2:55 AM	Cardiff	Coach Station	Economy	$21	A Bus from National Express goes from Coachway, Milton Keynes (United Kingdom) at 5/8/2026 9:25:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 5/9/2026 2:55:00 AM. 50 Economy ticket for $21 per person are available. Travel duration is 5h 30m
National Express	6h 30m	8:55 AM	Milton Keynes	Coachway	3:25 PM	Cardiff	Coach Station	Economy	$22	A Bus from National Express goes from Coachway, Milton Keynes (United Kingdom) at 5/8/2026 8:55:00 AM to Coach Station, Cardiff (United Kingdom) arriving at 5/8/2026 3:25:00 PM. 50 Economy ticket for $22 per person are available. Travel duration is 6h 30m
National Express	6h 35m	3:20 PM	Milton Keynes	Coachway	9:55 PM	Cardiff	Coach Station	Economy	$22	A Bus from National Express goes from Coachway, Milton Keynes (United Kingdom) at 5/8/2026 3:20:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 5/8/2026 9:55:00 PM. 50 Economy ticket for $22 per person are available. Travel duration is 6h 35m

Cheapest bus trips Saturday
BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Seat classes	Price
National Express	6h 5m	8:05 AM	Milton Keynes	Coachway	2:10 PM	Cardiff	Coach Station	Economy	$17	A Bus from National Express goes from Coachway, Milton Keynes (United Kingdom) at 5/9/2026 8:05:00 AM to Coach Station, Cardiff (United Kingdom) arriving at 5/9/2026 2:10:00 PM. 50 Economy ticket for $17 per person are available. Travel duration is 6h 5m
National Express	6h 5m	9:05 AM	Milton Keynes	Coachway	3:10 PM	Cardiff	Coach Station	Economy	$17	A Bus from National Express goes from Coachway, Milton Keynes (United Kingdom) at 5/9/2026 9:05:00 AM to Coach Station, Cardiff (United Kingdom) arriving at 5/9/2026 3:10:00 PM. 50 Economy ticket for $17 per person are available. Travel duration is 6h 5m
National Express	6h 25m	6:45 AM	Milton Keynes	Coachway	1:10 PM	Cardiff	Coach Station	Economy	$18	A Bus from National Express goes from Coachway, Milton Keynes (United Kingdom) at 5/9/2026 6:45:00 AM to Coach Station, Cardiff (United Kingdom) arriving at 5/9/2026 1:10:00 PM. 50 Economy ticket for $18 per person are available. Travel duration is 6h 25m
FlixBus	8h 10m	8:20 AM	Milton Keynes	Central Station	4:30 PM	Cardiff	Kingsway Bus Stop	Economy	$24	A Bus from FlixBus goes from Central Station, Milton Keynes (United Kingdom) at 5/9/2026 8:20:00 AM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 5/9/2026 4:30:00 PM. 50 Economy ticket for $24 per person are available. Travel duration is 8h 10m
FlixBus	7h 55m	10:40 AM	Milton Keynes	Central Station	6:35 PM	Cardiff	Kingsway Bus Stop	Economy	$24	A Bus from FlixBus goes from Central Station, Milton Keynes (United Kingdom) at 5/9/2026 10:40:00 AM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 5/9/2026 6:35:00 PM. 50 Economy ticket for $24 per person are available. Travel duration is 7h 55m

Cheapest bus trips Sunday
BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Seat classes	Price
National Express	6h 5m	8:05 AM	Milton Keynes	Coachway	2:10 PM	Cardiff	Coach Station	Economy	$17	A Bus from National Express goes from Coachway, Milton Keynes (United Kingdom) at 5/10/2026 8:05:00 AM to Coach Station, Cardiff (United Kingdom) arriving at 5/10/2026 2:10:00 PM. 50 Economy ticket for $17 per person are available. Travel duration is 6h 5m
National Express	5h 40m	8:15 PM	Milton Keynes	Coachway	1:55 AM	Cardiff	Coach Station	Economy	$17	A Bus from National Express goes from Coachway, Milton Keynes (United Kingdom) at 5/10/2026 8:15:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 5/11/2026 1:55:00 AM. 50 Economy ticket for $17 per person are available. Travel duration is 5h 40m
FlixBus	5h 55m	9:30 PM	Milton Keynes	Central Station	3:25 AM	Cardiff	Kingsway Bus Stop	Economy	$17	A Bus from FlixBus goes from Central Station, Milton Keynes (United Kingdom) at 5/10/2026 9:30:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 5/11/2026 3:25:00 AM. 50 Economy ticket for $17 per person are available. Travel duration is 5h 55m
National Express	6h 5m	9:05 AM	Milton Keynes	Coachway	3:10 PM	Cardiff	Coach Station	Economy	$19	A Bus from National Express goes from Coachway, Milton Keynes (United Kingdom) at 5/10/2026 9:05:00 AM to Coach Station, Cardiff (United Kingdom) arriving at 5/10/2026 3:10:00 PM. 50 Economy ticket for $19 per person are available. Travel duration is 6h 5m
FlixBus	6h 5m	7:20 PM	Milton Keynes	Central Station	1:25 AM	Cardiff	Kingsway Bus Stop	Economy	$19	A Bus from FlixBus goes from Central Station, Milton Keynes (United Kingdom) at 5/10/2026 7:20:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 5/11/2026 1:25:00 AM. 50 Economy ticket for $19 per person are available. Travel duration is 6h 5m

Cheapest bus trips Monday
BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Seat classes	Price
FlixBus	6h 5m	7:20 PM	Milton Keynes	Central Station	1:25 AM	Cardiff	Kingsway Bus Stop	Economy	$17	A Bus from FlixBus goes from Central Station, Milton Keynes (United Kingdom) at 5/11/2026 7:20:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 5/12/2026 1:25:00 AM. 50 Economy ticket for $17 per person are available. Travel duration is 6h 5m
FlixBus	8h 10m	8:20 AM	Milton Keynes	Central Station	4:30 PM	Cardiff	Kingsway Bus Stop	Economy	$18	A Bus from FlixBus goes from Central Station, Milton Keynes (United Kingdom) at 5/11/2026 8:20:00 AM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 5/11/2026 4:30:00 PM. 50 Economy ticket for $18 per person are available. Travel duration is 8h 10m
FlixBus	7h 55m	10:40 AM	Milton Keynes	Central Station	6:35 PM	Cardiff	Kingsway Bus Stop	Economy	$18	A Bus from FlixBus goes from Central Station, Milton Keynes (United Kingdom) at 5/11/2026 10:40:00 AM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 5/11/2026 6:35:00 PM. 50 Economy ticket for $18 per person are available. Travel duration is 7h 55m
FlixBus	5h 55m	9:30 PM	Milton Keynes	Central Station	3:25 AM	Cardiff	Kingsway Bus Stop	Economy	$20	A Bus from FlixBus goes from Central Station, Milton Keynes (United Kingdom) at 5/11/2026 9:30:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 5/12/2026 3:25:00 AM. 50 Economy ticket for $20 per person are available. Travel duration is 5h 55m
FlixBus	6h 50m	6:50 AM	Milton Keynes	Central Station	1:40 PM	Cardiff	Kingsway Bus Stop	Economy	$21	A Bus from FlixBus goes from Central Station, Milton Keynes (United Kingdom) at 5/11/2026 6:50:00 AM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 5/11/2026 1:40:00 PM. 50 Economy ticket for $21 per person are available. Travel duration is 6h 50m

Cheapest bus trips Tuesday
BertCompanyCountOneCompanyName	Duration	Departure time	From	Departure	Arrival time	To	Destination	Seat classes	Price
National Express	6h 25m	9:55 AM	Milton Keynes	Coachway	4:20 PM	Cardiff	Coach Station	Economy	$17	A Bus from National Express goes from Coachway, Milton Keynes (United Kingdom) at 5/12/2026 9:55:00 AM to Coach Station, Cardiff (United Kingdom) arriving at 5/12/2026 4:20:00 PM. 50 Economy ticket for $17 per person are available. Travel duration is 6h 25m
FlixBus	6h 5m	7:20 PM	Milton Keynes	Central Station	1:25 AM	Cardiff	Kingsway Bus Stop	Economy	$17	A Bus from FlixBus goes from Central Station, Milton Keynes (United Kingdom) at 5/12/2026 7:20:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 5/13/2026 1:25:00 AM. 50 Economy ticket for $17 per person are available. Travel duration is 6h 5m
FlixBus	5h 55m	9:30 PM	Milton Keynes	Central Station	3:25 AM	Cardiff	Kingsway Bus Stop	Economy	$17	A Bus from FlixBus goes from Central Station, Milton Keynes (United Kingdom) at 5/12/2026 9:30:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 5/13/2026 3:25:00 AM. 50 Economy ticket for $17 per person are available. Travel duration is 5h 55m
FlixBus	7h 5m	1:20 PM	Milton Keynes	Central Station	8:25 PM	Cardiff	Kingsway Bus Stop	Economy	$18	A Bus from FlixBus goes from Central Station, Milton Keynes (United Kingdom) at 5/12/2026 1:20:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 5/12/2026 8:25:00 PM. 50 Economy ticket for $18 per person are available. Travel duration is 7h 5m
National Express	6h 55m	12:45 PM	Milton Keynes	Coachway	7:40 PM	Cardiff	Coach Station	Economy	$21	A Bus from National Express goes from Coachway, Milton Keynes (United Kingdom) at 5/12/2026 12:45:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 5/12/2026 7:40:00 PM. 50 Economy ticket for $21 per person are available. Travel duration is 6h 55m

Best Price Offer: The price for the cheapest bus from Milton Keynes to Cardiff is $16 on 5/15/2026. Flexible travelers save on ticket prices.

Frequency of bus connections between Milton Keynes and Cardiff

See here how frequent the connections between Milton Keynes and Cardiff are, during different times and days of the week.

Sunday is the busiest day, with more than 28 daily buses from Milton Keynes to Cardiff. Monday has instead the fewest connections, with only 6 daily coaches between Milton Keynes and Cardiff.

The busiest time of the day is the Morning, with 35 buses from Milton Keynes to Cardiff, while Night sees the fewest connections between Milton Keynes and Cardiff, with 11 offers.

Facts about the bus from Milton Keynes to Cardiff

Compare all providers like National Express and FlixBus that travel 20 times every day by bus from Milton Keynes to Cardiff in one click! Book your bus ticket from Milton Keynes to Cardiff starting from $16!

Cheapest Bus	$16
Fastest Bus	4h 55m
Earliest Bus	4:35 AM
Latest Bus	9:30 PM
Daily Bus Routes	20 Ø
Distance	110.5 miles
Bus Companies	National Express and FlixBus

Cheapest bus connections from Milton Keynes to Cardiff

Every day, 20 buses from 2 bus companies leave Milton Keynes for Cardiff: in the table below, you will find the cheapest prices for a bus ticket for this route, starting from 05/06/2026 and for the following days.

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Sunday 05/03

Monday 05/04

Tuesday 05/05

Wednesday 05/06

Thursday 05/07

Friday 05/08

$18

Saturday 05/09

$17

Sunday 05/10

$17

Monday 05/11

$17

Tuesday 05/12

$17

Wednesday 05/13

$21

Thursday 05/14

$17

Friday 05/15

$16

Saturday 05/16

$18

Sunday 05/17

$16

Monday 05/18

$21

Tuesday 05/19

$18

Wednesday 05/20

$21

Thursday 05/21

$20

Friday 05/22

$21

Saturday 05/23

$28

Sunday 05/24

$17

Monday 05/25

$21

Tuesday 05/26

$21

Wednesday 05/27

$28

Thursday 05/28

$27

Friday 05/29

$26

Saturday 05/30

The cheapest time to travel from Milton Keynes to Cardiff

See here on which day and which time of the day you can find the cheapest bus ticket from Milton Keynes to Cardiff, for the next 30 days.

With a price starting from $16, Sunday is the cheapest day for a bus from Milton Keynes to Cardiff. Monday instead is the most expensive day with prices starting from $17.

Night is the cheapest day time for bus tickets from Milton Keynes to Cardiff, with $16. Afternoon is the most expensive time of the day with prices starting from $18.

How to save money travelling from Milton Keynes to Cardiff

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 Milton Keynes to Cardiff 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 Milton Keynes to Cardiff, 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 Milton Keynes to Cardiff are also emptier.

All bus stations and stops in Milton Keynes and Cardiff

In the map below, you can see where to find all bus stations in Milton Keynes and Cardiff.

Coachway

The Coachway

Central Station

Bus Stop

Midsummer Boulevard 653

Kingston Shopping Centre

Winchester Cir 1

National Bowl

University

Park Place 50

Coach Station

Sophia Gardens 2

Kingsway Bus Stop

North Rd

Gabalfa Interchange

North Road 213

Bus Interchange

Central Square 3

Service and Comfort on the bus from Milton Keynes to Cardiff

Want to know which seat classes are available on the buses from Milton Keynes to Cardiff? Or which bus companies serve the route Milton Keynes to Cardiff? Below you will find answers to your questions.

FAQs about the Milton Keynes to Cardiff bus

How much does a Milton Keynes Cardiff bus trip cost?

This depends on, among other things, the day and time of travel. The cheapest trip is available from $16 and takes 6h 5m to reach Cardiff. Compare offers to save money!

How much could I save by comparing buses from Milton Keynes to Cardiff?

This route is offered by 2 companies with a range of ticket prices between $16 and $49. Thus, we recommend booking your ticket as early as possible to make sure you get the cheapest bus ticket to Cardiff.

On average, how many connections are available from Milton Keynes to Cardiff each day?

Every day, the Milton Keynes to Cardiff bus route is served by approximately 20 connections. With our search, you can compare bus times to find the perfect trip.

How long does a bus journey from Milton Keynes to Cardiff take?

The fastest bus from Milton Keynes to Cardiff is offered by National Express and takes 4h 55m. Bus tickets for this connection cost $37. In this context, bear in mind that the journey can take longer due to traffic.

What time is the first bus from Milton Keynes to Cardiff?

The earliest bus arriving in Cardiff from Milton Keynes starts at 4:35 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 Milton Keynes to Cardiff?

The latest bus trip departing from Milton Keynes for Cardiff starts at 9:30 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 Milton Keynes Cardiff route?

When traveling by bus from Milton Keynes to Cardiff, passengers can travel with National Express and FlixBus. With our search, you can compare all available bus tickets to book the one that works for you.

Is there a direct bus between Milton Keynes and Cardiff?

You can check all the direct connections between Milton Keynes and Cardiff by using our search and looking at the Changes section in our filters. These are some of the companies which offer a direct bus: National Express and FlixBus.

What can I take with me on the Milton Keynes to Cardiff 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 Milton Keynes Cardiff 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 Milton Keynes Cardiff 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 Milton Keynes to Cardiff on your planned travel date.

How does CheckMyBus find the best bus deals from Milton Keynes to Cardiff?

CheckMyBus collaborates directly with companies around the world to provide you with the best options when searching for a trip. We retrieve their first-hand data to show you real-time prices, schedules, and seat availability for 20 daily trips between Milton Keynes and Cardiff. With the most up-to-date information from verified sources, you can fairly compare all available options and choose the trip that suits you best.

How does CheckMyBus technology work for trips from Milton Keynes to Cardiff?

Prices and availability for 20 trips between Milton Keynes and Cardiff change constantly. To provide you with the most up-to-date information, we connect directly with bus operators, Online Travel Agencies (OTAs), and Global Distribution Systems (GDS) via real-time interfaces (APIs). The data collected from these sources undergoes strict quality checks, is processed within our infrastructure, and is then presented to you on our search results pages. Visit our About Us page to learn more.

Available seat classes which are offered on the bus route Milton Keynes to Cardiff

Economy

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

More bus routes to Milton Keynes and to Cardiff

Here’s an overview of the most popular bus routes to Milton Keynes and to Cardiff. Simply click on the connection of your choice, and you will find all the details about your bus route!