How much does a train ticket cost from London to Cardiff?

The cheapest train tickets from London to Cardiff start from £37. The average price for this train route is around £81. Busbud recommends booking your tickets in advance for the best chance of getting the lowest possible price.

How long is the train journey from London to Cardiff?

The average train journey time from London to Cardiff is 1h 50m, covering a distance of 129 miles. The fastest train gets you there in 1h 43m and is operated by Great Western Railway .

Which train operators serve the London to Cardiff route?

Several major train operators run on this route with 15 trains available per day.

What are the earliest and latest departure times for the train from London to Cardiff?

The earliest train from London to Cardiff departs at 07:05. And the latest train departs at 23:32.

Train London to Cardiff from £39

Next train departures

Next departures from London to Cardiff on 12 December
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	09:18	London Paddington	1h 49m	11:07	Cardiff Central	Cheapest
Train	07:48	London Paddington	1h 47m	09:35	Cardiff Central	Fastest
Train	07:12	London Paddington	1h 56m	09:08	Cardiff Central	No tags
Train	07:48	London Paddington	1h 47m	09:35	Cardiff Central	No tags
Train	08:18	London Paddington	1h 51m	10:09	Cardiff Central	No tags

Next departures from London to Cardiff on 13 December
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	16:16	London Paddington	1h 54m	18:10	Cardiff Central	Cheapest
Train	07:48	London Paddington	1h 48m	09:36	Cardiff Central	Fastest
Train	07:48	London Paddington	1h 48m	09:36	Cardiff Central	No tags
Train	08:48	London Paddington	1h 49m	10:37	Cardiff Central	No tags
Train	08:48	London Paddington	1h 49m	10:37	Cardiff Central	No tags

Next departures from London to Cardiff on 14 December
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	08:33	London Paddington	1h 56m	10:29	Cardiff Central	Cheapest
Train	10:45	London Paddington	1h 49m	12:34	Cardiff Central	Fastest
Train	07:53	London Paddington	2h 31m	10:24	Cardiff Central	No tags
Train	07:53	London Paddington	2h 31m	10:24	Cardiff Central	No tags
Train	08:33	London Paddington	1h 56m	10:29	Cardiff Central	No tags

Next departures from London to Cardiff on 15 December
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	09:18	London Paddington	1h 49m	11:07	Cardiff Central	Cheapest
Train	16:18	London Paddington	1h 47m	18:05	Cardiff Central	Fastest
Train	07:12	London Paddington	1h 56m	09:08	Cardiff Central	No tags
Train	07:48	London Paddington	1h 48m	09:36	Cardiff Central	No tags
Train	07:48	London Paddington	1h 48m	09:36	Cardiff Central	No tags

Next departures from London to Cardiff on 16 December
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	09:18	London Paddington	1h 49m	11:07	Cardiff Central	Cheapest
Train	16:18	London Paddington	1h 47m	18:05	Cardiff Central	Fastest
Train	07:12	London Paddington	1h 56m	09:08	Cardiff Central	No tags
Train	07:48	London Paddington	1h 48m	09:36	Cardiff Central	No tags
Train	07:48	London Paddington	1h 48m	09:36	Cardiff Central	No tags

Next departures from London to Cardiff on 17 December
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	09:18	London Paddington	1h 49m	11:07	Cardiff Central	Cheapest
Train	16:18	London Paddington	1h 47m	18:05	Cardiff Central	Fastest
Train	07:12	London Paddington	1h 56m	09:08	Cardiff Central	No tags
Train	07:48	London Paddington	1h 48m	09:36	Cardiff Central	No tags
Train	07:48	London Paddington	1h 48m	09:36	Cardiff Central	No tags

Next departures from London to Cardiff on 18 December
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	09:18	London Paddington	1h 49m	11:07	Cardiff Central	Cheapest
Train	16:18	London Paddington	1h 47m	18:05	Cardiff Central	Fastest
Train	07:12	London Paddington	1h 56m	09:08	Cardiff Central	No tags
Train	07:48	London Paddington	1h 48m	09:36	Cardiff Central	No tags
Train	07:48	London Paddington	1h 48m	09:36	Cardiff Central	No tags

Last refresh of the prices: Today at 20:58 GMT.

Compare 3 ways to travel from London to Cardiff

We recommend carpooling

Among the sustainable travel choices, the carpool stands out as a good way to reach Cardiff. The journey takes about 2 hours 30 minutes and with fares starting at just £12, it presents an excellent value for a comfortable ride.

1carpool per day

2h 30mAverage duration

131 milesDistance

9kgCO₂ emissions

	Average price	Average duration	CO₂ emissions
Bus	Average price£9 - £74	Average duration3h 40m	CO₂ emissions 5kg CO₂e
Train	Average price£37 - £234	Average duration1h 50m	CO₂ emissions 5kg CO₂e
Carpool	Average price£12 - £25	Average duration2h 30m	CO₂ emissions 9kg CO₂e

Where are the popular train stations and stops in London and Cardiff?

London

A
King's Cross
7 York Way, London N1 9AA, UK
Visit page
B
St Pancras International
King's Cross St. Pancras, Euston Rd, Kings Cross, London N1 9AL, UK
Visit page
C
Euston Station
Euston Railway Station B40 The Balcony, Eversholt St, London NW1 2DU, UK
Visit page
D
Waterloo
Waterloo Station Southbank, Station Approach, London SE1 8SW, UK
Visit page
E
London Bridge
51-55 St Thomas St, London SE1 3QX, UK
Visit page
F
Marylebone
Melcombe Pl, London NW1 6JJ, UK
Visit page

Cardiff

A
Cardiff Central
Cardiff Central, UK
Visit page

Train Companies

Great Western Railway

4/542 reviews

Staff5

Timeliness4.7

Cleanliness4.7

WiFi4

Based on 42 reviews, the company was rated 4 stars on Busbud. Travellers were especially satisfied with the staff and the seats but often complained with the Wi-Fi. Great Western Railway ticket prices on this trip start at £37

Great Western Railway London Cardiff recent customer reviews

Slight longer than usual, but overall great journey

Khadija O.

4 July 2023

GB train companies: Amtrak, Trenitalia, Renfe, VIA Rail Canada, RegioJet, FlixTrain, Amtrak Acela

Frequently asked questions about travelling from London to Cardiff by train

Please note that timetables, routes, or operator details shown here may be updated or vary at the time of your journey.

How much does a train ticket cost from London to Cardiff?
The cheapest train tickets from London to Cardiff start from £37. The average price for this train route is around £81. Busbud recommends booking your tickets in advance for the best chance of getting the lowest possible price.
How long is the train journey from London to Cardiff?
The average train journey time from London to Cardiff is 1h 50m, covering a distance of 129 miles. The fastest train gets you there in 1h 43m and is operated by Great Western Railway.
Which train operators serve the London to Cardiff route?
Several major train operators run on this route with 15 trains available per day.
What are the earliest and latest departure times for the train from London to Cardiff?
The earliest train from London to Cardiff departs at 07:05. And the latest train departs at 23:32.

Find cheapest prices for trains

Price is for a one-way ticket for one passenger and based on past searches.

Best price found

09/12

£60

10/12

£60

Today

£163

12/12

£86

13/12

£61

14/12

£65

15/12

£89

16/12

£85

The cheapest trip from London to Cardiff was searched and found on 9 Dec 2025 with a price of £60

To save money and be sure you have the best seat, it's a good idea to buy your train tickets from London to Cardiff as early as possible.

You can expect to pay from £60 to £231 for a train ticket from London to Cardiff based on the last 2 days. You can expect to find the cheapest price for the trip at £61, which is on 2025-12-13.