How much is the train ticket from Cardiff to London?

The cheapest train tickets from Cardiff to London start from R 701. The average price for this train route is around R 1 430. Busbud recommends booking your tickets in advance for a better chance to secure the lowest possible price.

How long is the train journey from Cardiff to London?

The average train journey time from Cardiff to London is 1h 56m, covering a distance of 208 km. The quickest train can get you there in 1h 49m and is operated by Great Western Railway .

Which train operators serve the Cardiff to London 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 Cardiff to London?

The earliest train from Cardiff to London departs at 07:18. And the latest train departs at 21:30.

Train Cardiff to London from R 754

Next train departures

Next departures from Cardiff to London on 29 January
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	17:18	Cardiff Central	1h 58m	19:16	London Paddington	Cheapest
Train	16:21	Cardiff Central	1h 52m	18:13	London Paddington	Fastest
Train	15:18	Cardiff Central	1h 54m	17:12	London Paddington	No tags
Train	15:18	Cardiff Central	1h 54m	17:12	London Paddington	No tags
Train	15:30	Cardiff Central	2h 35m	18:05	London Paddington	No tags

Next departures from Cardiff to London on 30 January
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	17:50	Cardiff Central	1h 52m	19:42	London Paddington	Cheapest
Train	07:23	Cardiff Central	1h 51m	09:14	London Paddington	Fastest
Train	07:23	Cardiff Central	1h 51m	09:14	London Paddington	No tags
Train	07:27	Cardiff Central	2h 39m	10:06	London Paddington	No tags
Train	07:27	Cardiff Central	2h 39m	10:06	London Paddington	No tags

Next departures from Cardiff to London on 31 January
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	07:18	Cardiff Central	1h 56m	09:14	London Paddington	Cheapest
Train	08:23	Cardiff Central	1h 50m	10:13	London Paddington	Fastest
Train	07:18	Cardiff Central	1h 56m	09:14	London Paddington	No tags
Train	07:27	Cardiff Central	2h 40m	10:07	London Paddington	No tags
Train	07:27	Cardiff Central	2h 40m	10:07	London Paddington	No tags

Next departures from Cardiff to London on 1 February
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	08:50	Cardiff Central	2h 9m	10:59	London Paddington	Cheapest
Train	16:20	Cardiff Central	2h 4m	18:24	London Paddington	Fastest
Train	08:50	Cardiff Central	2h 9m	10:59	London Paddington	No tags
Train	09:35	Cardiff Central	2h 23m	11:58	London Paddington	No tags
Train	09:35	Cardiff Central	2h 23m	11:58	London Paddington	No tags

Next departures from Cardiff to London on 2 February
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	15:18	Cardiff Central	1h 52m	17:10	London Paddington	Cheapest
Train	07:23	Cardiff Central	1h 51m	09:14	London Paddington	Fastest
Train	07:23	Cardiff Central	1h 51m	09:14	London Paddington	No tags
Train	07:27	Cardiff Central	2h 39m	10:06	London Paddington	No tags
Train	07:27	Cardiff Central	2h 39m	10:06	London Paddington	No tags

Next departures from Cardiff to London on 3 February
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	17:18	Cardiff Central	1h 58m	19:16	London Paddington	Cheapest
Train	07:23	Cardiff Central	1h 51m	09:14	London Paddington	Fastest
Train	07:23	Cardiff Central	1h 51m	09:14	London Paddington	No tags
Train	07:27	Cardiff Central	2h 39m	10:06	London Paddington	No tags
Train	07:27	Cardiff Central	2h 39m	10:06	London Paddington	No tags

Next departures from Cardiff to London on 4 February
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	17:18	Cardiff Central	1h 58m	19:16	London Paddington	Cheapest
Train	07:23	Cardiff Central	1h 51m	09:14	London Paddington	Fastest
Train	07:23	Cardiff Central	1h 51m	09:14	London Paddington	No tags
Train	07:27	Cardiff Central	2h 39m	10:06	London Paddington	No tags
Train	07:27	Cardiff Central	2h 39m	10:06	London Paddington	No tags

Next departures from Cardiff to London on 5 February
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	17:50	Cardiff Central	1h 52m	19:42	London Paddington	Cheapest
Train	07:23	Cardiff Central	1h 51m	09:14	London Paddington	Fastest
Train	07:23	Cardiff Central	1h 51m	09:14	London Paddington	No tags
Train	07:27	Cardiff Central	2h 39m	10:06	London Paddington	No tags
Train	07:27	Cardiff Central	2h 39m	10:06	London Paddington	No tags

Last refresh of the prices: Today at 9:32 AM GMT.

Compare 3 ways to travel from Cardiff to London

We recommend carpooling

Among the sustainable travel choices, the Carpool stands out as a good way to reach London. The journey takes about 2 hours 20 minutes and with fares starting at just R 199, it presents an excellent value for a comfortable ride.

1carpool per day

2h 20mAverage duration

212 kmDistance

9kgCO₂ emissions

	Average price	Average duration	CO₂ emissions
Bus	Average priceR 184 - R 1 249	Average duration3h 45m	CO₂ emissions 5kg CO₂e
Train	Average priceR 701 - R 5 097	Average duration1h 56m	CO₂ emissions 5kg CO₂e
Carpool	Average priceR 199 - R 525	Average duration2h 20m	CO₂ emissions 9kg CO₂e

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

Cardiff

A
Cardiff Central
Cardiff Central, UK
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London

A
King's Cross
7 York Way, London N1 9AA, UK
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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

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 about the Wi-Fi. Great Western Railway ticket prices on this trip start at R 701

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

Frequently asked questions about travelling from Cardiff to London by train

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

How much is the train ticket from Cardiff to London?
The cheapest train tickets from Cardiff to London start from R 701. The average price for this train route is around R 1 430. Busbud recommends booking your tickets in advance for a better chance to secure the lowest possible price.
How long is the train journey from Cardiff to London?
The average train journey time from Cardiff to London is 1h 56m, covering a distance of 208 km. The quickest train can get you there in 1h 49m and is operated by Great Western Railway.
Which train operators serve the Cardiff to London 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 Cardiff to London?
The earliest train from Cardiff to London departs at 07:18. And the latest train departs at 21:30.

Find cheapest prices for trains

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

Best price found

27/01

R 1 186

28/01

R 1 210

Today

R 1 214

30/01

R 1 214

31/01

R 1 312

01/02

R 1 410

02/02

R 1 214

03/02

R 1 214

The cheapest trip from Cardiff to London was searched and found on 27 Jan 2026 with a price of R 1 186

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

You can expect to pay from R 1 186 to R 4 985 for a train ticket from Cardiff to London based on the last 2 days. You can expect to find the cheapest price for the trip at R 1 214, which is on 2026-01-30.