Which bus from Cardiff to London is the cheapest?

Compare all bus companies and find the best price: Bus tickets from $7
Search for your destination Millions of deals worldwide
Compare results Save up to 70%
Find the right bus for you Easy and transparent

Compare all timetables for the bus from Cardiff to London

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

today
$7
tomorrow
$7
Thursday
$7
Friday
$7
Saturday
$7
Sunday
$7
Monday
$11

Cheapest bus trips today

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
FlixBus 3h 50m 1:05 PM Cardiff Kingsway Bus Stop 4:55 PM London Hammersmith  Economy $7
FlixBus 3h 20m 4:15 PM Cardiff Kingsway Bus Stop 7:35 PM London Hammersmith  Economy $7
FlixBus 3h 20m 5:25 PM Cardiff Kingsway Bus Stop 8:45 PM London Hammersmith  Economy $7
National Express 3h 20m 12:30 PM Cardiff Coach Station 3:50 PM London Hammersmith  Economy $7
National Express 3h 50m 12:30 PM Cardiff Coach Station 4:20 PM London Victoria Coach Station  Economy $7

Cheapest bus trips tomorrow

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
FlixBus 3h 40m 1:40 AM Cardiff Kingsway Bus Stop 5:20 AM London Hammersmith  Economy $7
FlixBus 3h 10m 5:00 AM Cardiff Kingsway Bus Stop 8:10 AM London Hammersmith  Economy $7
FlixBus 3h 50m 1:05 PM Cardiff Kingsway Bus Stop 4:55 PM London Hammersmith  Economy $7
National Express 3h 20m 3:15 AM Cardiff Coach Station 6:35 AM London Earl's Court  Economy $7
National Express 3h 30m 1:30 PM Cardiff Coach Station 5:00 PM London Earl's Court  Economy $7

Cheapest bus trips Thursday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
FlixBus 3h 40m 1:40 AM Cardiff Kingsway Bus Stop 5:20 AM London Hammersmith  Economy $7
FlixBus 3h 10m 5:00 AM Cardiff Kingsway Bus Stop 8:10 AM London Hammersmith  Economy $7
FlixBus 3h 30m 6:05 AM Cardiff Kingsway Bus Stop 9:35 AM London Hammersmith  Economy $7
National Express 3h 20m 3:15 AM Cardiff Coach Station 6:35 AM London Earl's Court  Economy $7
National Express 3h 15m 9:45 AM Cardiff Coach Station 1:00 PM London Earl's Court  Economy $7

Cheapest bus trips Friday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
National Express 3h 20m 3:15 AM Cardiff Coach Station 6:35 AM London Earl's Court  Economy $7
National Express 3h 35m 4:20 AM Cardiff Coach Station 7:55 AM London Earl's Court  Economy $7
National Express 3h 40m 5:15 AM Cardiff Coach Station 8:55 AM London Earl's Court  Economy $7
FlixBus 3h 40m 1:40 AM Cardiff Kingsway Bus Stop 5:20 AM London Hammersmith  Economy $9
FlixBus 3h 10m 5:00 AM Cardiff Kingsway Bus Stop 8:10 AM London Hammersmith  Economy $9

Cheapest bus trips Saturday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
National Express 3h 20m 3:15 AM Cardiff Coach Station 6:35 AM London Earl's Court  Economy $7
National Express 3h 15m 4:50 AM Cardiff Coach Station 8:05 AM London Earl's Court  Economy $7
National Express 3h 5m 5:55 AM Cardiff Coach Station 9:00 AM London Earl's Court  Economy $7
FlixBus 3h 20m 4:15 PM Cardiff Kingsway Bus Stop 7:35 PM London Hammersmith  Economy $9
FlixBus 3h 20m 5:25 PM Cardiff Kingsway Bus Stop 8:45 PM London Hammersmith  Economy $9

Cheapest bus trips Sunday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
National Express 3h 20m 3:15 AM Cardiff Coach Station 6:35 AM London Earl's Court  Economy $7
National Express 3h 15m 4:50 AM Cardiff Coach Station 8:05 AM London Earl's Court  Economy $7
FlixBus 3h 40m 1:40 AM Cardiff Kingsway Bus Stop 5:20 AM London Hammersmith  Economy $9
FlixBus 3h 10m 5:00 AM Cardiff Kingsway Bus Stop 8:10 AM London Hammersmith  Economy $9
Transport for Wales 4h 12m 9:18 AM Cardiff Penarth Train Station 1:30 PM London Mitcham Junction  Economy $76

Cheapest bus trips Monday

Mode of Transport BertCompanyCountOneCompanyName Duration Departure time From Departure Arrival time To Destination Logo Seat classes Price
National Express 3h 40m 6:15 AM Cardiff Coach Station 9:55 AM London Earl's Court  Economy $11
National Express 4h 5m 6:15 AM Cardiff Coach Station 10:20 AM London Victoria Coach Station  Economy $11
National Express 3h 50m 11:30 AM Cardiff Coach Station 3:20 PM London Victoria Coach Station  Economy $11
FlixBus 3h 40m 1:40 AM Cardiff Kingsway Bus Stop 5:20 AM London Hammersmith  Economy $12
FlixBus 3h 10m 5:00 AM Cardiff Kingsway Bus Stop 8:10 AM London Hammersmith  Economy $12
  • Did you know that if you travel from Cardiff to London via Bristol, you can save more than $2? You can find the corresponding connections below.
    • National Express
      3h 25m
      0
      8:25 PM
      Cardiff
      University
      9:30 PM
      Bristol
      Coach Station
      0
      National Express
      Economy
      $4
      • Waiting Time 0h 10m
    • FlixBus
      2h 10m
      0
      9:40 PM
      Bristol
      Coldharbour Lane
      11:50 PM
      London
      Hammersmith
      0
      FlixBus
      Economy
      $5
    Travel time is 0h 15m longer, but you will save $2

Best Price Offer: The price for the cheapest bus from Cardiff to London is $7 on 9/8/2026. Flexible travelers save on ticket prices.


Frequency of bus connections between Cardiff and London

See here how frequent the connections between Cardiff and London are, during different times and days of the week.
Sunday is the busiest day, with more than 180 daily buses from Cardiff to London. Tuesday has instead the fewest connections, with only 51 daily coaches between Cardiff and London.
The busiest time of the day is the Morning, with 390 buses from Cardiff to London, while Evening sees the fewest connections between Cardiff and London, with 131 offers.

Facts about the bus from Cardiff to London

Compare all providers like National Express, FlixBus and Transport for Wales that travel 135 times every day by bus from Cardiff to London in one click! Book your bus ticket from Cardiff to London starting from $7!

Cheapest Bus $7
Fastest Bus 2h 40m
Earliest Bus 11:55 AM
Latest Bus 11:40 PM
Daily Bus Routes 135 Ø
Distance 131.3 miles
Bus Companies National Express, FlixBus and Transport for Wales

Cheapest bus connections from Cardiff to London

Every day, 135 buses from 3 bus companies leave Cardiff for London: in the table below, you will find the cheapest prices for a bus ticket for this route, starting from 09/08/2026 and for the following days.

Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday 09/06
Monday 09/07
Tuesday 09/08
$7
Wednesday 09/09
$7
Thursday 09/10
$7
Friday 09/11
$12
Saturday 09/12
$7
Sunday 09/13
$76
Monday 09/14
$11
Tuesday 09/15
$7
Wednesday 09/16
$12
Thursday 09/17
$7
Friday 09/18
Saturday 09/19
$10
Sunday 09/20
$7
Monday 09/21
$10
Tuesday 09/22
$7
Wednesday 09/23
Thursday 09/24
$9
Friday 09/25
Saturday 09/26
$7
Sunday 09/27
$11
Monday 09/28
$7
Tuesday 09/29
Wednesday 09/30
Thursday 10/01
Friday 10/02
$7
Saturday 10/03

The cheapest time to travel from Cardiff to London

See here on which day and which time of the day you can find the cheapest bus ticket from Cardiff to London, for the next 30 days.
With a price starting from $7, Tuesday is the cheapest day for a bus from Cardiff to London. Monday instead is the most expensive day with prices starting from $7.
Afternoon is the cheapest day time for bus tickets from Cardiff to London, with $7. Morning is the most expensive time of the day with prices starting from $7.

How to save money travelling from Cardiff to London

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 Cardiff to London 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 Cardiff to London, 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 Cardiff to London are also emptier.

Beloved bus companies from Cardiff to London

These are the most booked bus companies between Cardiff to London from our users.

FlixBus from Cardiff to London

FlixBus

Here you will find the key facts about the FlixBus bus route Cardiff to London:

Cheapest Price $7
Fastest Bus 3h 10m
Earliest Bus 11:55 AM
Last Bus 6:10 PM
Daily Connections 20 Ø
Found on 9/7/2026

National Express from Cardiff to London

National Express

Here you will find the key facts about the National Express bus route Cardiff to London:

Cheapest Price $7
Fastest Bus 2h 40m
Earliest Bus 12:30 PM
Last Bus 11:40 PM
Daily Connections 113 Ø
Found on 9/7/2026

Latest reviews for bus companies on the route Cardiff - London

FlixBus
Ibrahim , 7/6/2026
FlixBus is one of the most unreliable transportation companies I have ever dealt with. More than six of my trips were cancelled, including one cancelled only 30 minutes before departure. This is not j ... FlixBus is one of the most unreliable transportation companies I have ever dealt with. More than six of my trips were cancelled, including one cancelled only 30 minutes before departure. This is not just bad service — it is a complete lack of respect for customers’ time, money, and commitments. Their last-minute cancellations caused me stress, wasted money, and ruined plans. A company that repeatedly cancels trips and leaves passengers without a proper solution should not be trusted. I strongly advise people to avoid FlixBus if they need reliable transportation. Cheap tickets mean nothing when the company cannot even guarantee that the bus will actually show up.

All bus stations and stops in Cardiff and London

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

Compare the bus with other modes of transport

The bus is often the cheapest mode of transport, while other modes like train or flight are faster. Looking for quicker alternatives to travel from Cardiff to London? Compare all modes of transports from Cardiff to London.

Service and Comfort on the bus from Cardiff to London

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

FAQs about the Cardiff to London bus

How much does a Cardiff London bus trip cost?

This depends on, among other things, the day and time of travel. The cheapest trip is available from $7 and takes 3h 50m to reach London. Compare offers to save money!

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

This route is offered by 3 companies with a range of ticket prices between $7 and $76. Thus, we recommend booking your ticket as early as possible to make sure you get the cheapest bus ticket to London.

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

Every day, the Cardiff to London bus route is served by approximately 135 connections. With our search, you can compare bus times to find the perfect trip.

How long does a bus journey from Cardiff to London take?

The fastest bus from Cardiff to London is offered by National Express and takes 2h 40m. Bus tickets for this connection cost $7. In this context, bear in mind that the journey can take longer due to traffic.

What time is the first bus from Cardiff to London?

The earliest bus arriving in London from Cardiff starts at 11:55 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 Cardiff to London?

The latest bus trip departing from Cardiff for London starts at 11:40 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 Cardiff London route?

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

Is there a direct bus between Cardiff and London?

You can check all the direct connections between Cardiff and London 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, FlixBus and Transport for Wales.

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

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

Economy
Economy

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

More bus routes to Cardiff and to London

Here’s an overview of the most popular bus routes to Cardiff and to London. Simply click on the connection of your choice, and you will find all the details about your bus route!
Buses from Shrewsbury to Cardiff Buses from Shrewsbury to Cardiff
Weston Super Mare to Cardiff bus Weston Super Mare to Cardiff bus
Bus from Chester to Cardiff Bus from Chester to Cardiff
Sunderland to Cardiff bus Sunderland to Cardiff bus
Bus Rugby to London Bus Rugby to London
Buses to London from Béziers Buses to London from Béziers
Bus Calais to London Bus Calais to London
Buses from Valencia to London Buses from Valencia to London
Popular Airport Shuttles to Cardiff and to London
CheckMyBus › Buses in United Kingdom › Bus to Cardiff › Bus to London

The CheckMyBus App

Free Download

App Store
CheckMyBus App
Close
GPDR CheckMyBus shield

We value your privacy!

To

show

you

the

best

bus

offers,

we

and

our

partners

use

technical,

analytical,

and

marketing

cookies

to

personalize

the

ads.

We

remember

your

anonymized

details

to

provide

a

personalized

experience.