How much is the train ticket from London to Cardiff?

The cheapest train tickets from London to Cardiff start at $66. The average price for this train route is around $161. Busbud recommends booking your tickets in advance to increase your chances of getting the lowest possible price.

How long is the train ride from London to Cardiff?

The average train trip from London to Cardiff takes 1h 52m and covers 209 km. The quickest train gets you there in 1h 44m and is operated by Great Western Railway .

Which train operators serve the London to Cardiff route?

Several major train operators serve 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 7:00am. The latest train departs at 11:32pm.

Train London to Cardiff from $71

Next train departures

Next departures for London to Cardiff on May 7
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	10:48am	London Paddington	1h 49m	12:37pm	Cardiff Central	Cheapest
Train	4:18pm	London Paddington	1h 47m	6:05pm	Cardiff Central	Fastest
Train	10:48am	London Paddington	1h 49m	12:37pm	Cardiff Central	No tags
Train	3:16pm	London Paddington	1h 53m	5:09pm	Cardiff Central	No tags
Train	3:16pm	London Paddington	1h 53m	5:09pm	Cardiff Central	No tags

Next departures for London to Cardiff on May 8
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	9:18am	London Paddington	1h 49m	11:07am	Cardiff Central	Cheapest
Train	4:18pm	London Paddington	1h 47m	6:05pm	Cardiff Central	Fastest
Train	7:12am	London Paddington	1h 56m	9:08am	Cardiff Central	No tags
Train	7:48am	London Paddington	1h 48m	9:36am	Cardiff Central	No tags
Train	7:48am	London Paddington	1h 48m	9:36am	Cardiff Central	No tags

Next departures for London to Cardiff on May 9
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	4:16pm	London Paddington	1h 54m	6:10pm	Cardiff Central	Cheapest
Train	7:48am	London Paddington	1h 48m	9:36am	Cardiff Central	Fastest
Train	7:48am	London Paddington	1h 48m	9:36am	Cardiff Central	No tags
Train	8:48am	London Paddington	1h 52m	10:40am	Cardiff Central	No tags
Train	8:48am	London Paddington	1h 52m	10:40am	Cardiff Central	No tags

Next departures for London to Cardiff on May 10
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	8:23am	London Paddington	2h 6m	10:29am	Cardiff Central	Cheapest
Train	10:45am	London Paddington	1h 48m	12:33pm	Cardiff Central	Fastest
Train	8:23am	London Paddington	2h 6m	10:29am	Cardiff Central	No tags
Train	9:31am	London Paddington	1h 57m	11:28am	Cardiff Central	No tags
Train	9:31am	London Paddington	1h 57m	11:28am	Cardiff Central	No tags

Next departures for London to Cardiff on May 11
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	9:18am	London Paddington	1h 49m	11:07am	Cardiff Central	Cheapest
Train	4:18pm	London Paddington	1h 47m	6:05pm	Cardiff Central	Fastest
Train	7:12am	London Paddington	1h 56m	9:08am	Cardiff Central	No tags
Train	7:48am	London Paddington	1h 48m	9:36am	Cardiff Central	No tags
Train	7:48am	London Paddington	1h 48m	9:36am	Cardiff Central	No tags

Next departures for London to Cardiff on May 12
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	9:18am	London Paddington	1h 49m	11:07am	Cardiff Central	Cheapest
Train	4:18pm	London Paddington	1h 47m	6:05pm	Cardiff Central	Fastest
Train	7:12am	London Paddington	1h 56m	9:08am	Cardiff Central	No tags
Train	7:48am	London Paddington	1h 48m	9:36am	Cardiff Central	No tags
Train	7:48am	London Paddington	1h 48m	9:36am	Cardiff Central	No tags

Next departures for London to Cardiff on May 13
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	9:18am	London Paddington	1h 50m	11:08am	Cardiff Central	Cheapest
Train	4:18pm	London Paddington	1h 47m	6:05pm	Cardiff Central	Fastest
Train	7:12am	London Paddington	1h 56m	9:08am	Cardiff Central	No tags
Train	7:48am	London Paddington	1h 48m	9:36am	Cardiff Central	No tags
Train	7:48am	London Paddington	1h 48m	9:36am	Cardiff Central	No tags

Next departures for London to Cardiff on May 14
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	9:18am	London Paddington	1h 50m	11:08am	Cardiff Central	Cheapest
Train	4:18pm	London Paddington	1h 47m	6:05pm	Cardiff Central	Fastest
Train	7:12am	London Paddington	1h 56m	9:08am	Cardiff Central	No tags
Train	7:48am	London Paddington	1h 48m	9:36am	Cardiff Central	No tags
Train	7:48am	London Paddington	1h 48m	9:36am	Cardiff Central	No tags

Last refresh of the prices: Today at 7:55 AM BST.

Compare 2 ways to go from London to Cardiff

We recommend taking the bus

Among the sustainable travel choices, the Bus stands out as a good way to reach Cardiff. The journey takes about 3 hours 45 minutes, and with fares starting at just $13, it presents an excellent value for a comfortable ride.

117bus per day

3h 45mAverage Duration

212 kmDistance

5kgCO₂ emissions

	Average Price	Average Duration	CO₂ emissions	Actions
Bus	Average Price$13 - $116	Average Duration3h 45m	CO₂ emissions 5kg CO₂e
Train	Average Price$66 - $446	Average Duration1h 52m	CO₂ emissions 5kg 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
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C
Euston Station
Euston Railway Station B40 The Balcony, Eversholt St, London NW1 2DU, UK
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D
Waterloo
Waterloo Station Southbank, Station Approach, London SE1 8SW, UK
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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

4.0/542 reviews

Staff5.0

Timeliness4.7

Cleanliness4.7

Wi‑Fi4.0

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 $66

Great Western Railway London Cardiff recent customer reviews

Slight longer than usual, but overall great journey

Khadija O.

July 4, 2023

GB train companies:RegioJet, FlixTrain, CrossCountry, Great Western Railway, Northern, ScotRail, Transpennine Express

Frequently asked questions about travelling from London to Cardiff by train

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

How much is the train ticket from London to Cardiff?
The cheapest train tickets from London to Cardiff start at $66. The average price for this train route is around $161. Busbud recommends booking your tickets in advance to increase your chances of getting the lowest possible price.
How long is the train ride from London to Cardiff?
The average train trip from London to Cardiff takes 1h 52m and covers 209 km. The quickest train gets you there in 1h 44m and is operated by Great Western Railway.
Which train operators serve the London to Cardiff route?
Several major train operators serve 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 7:00am. The latest train departs at 11:32pm.

Find cheapest prices for trains

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

Best price found

05-05

$95

05-06

$96

Today

$111

05-08

$157

05-09

$104

05-10

$120

05-11

$163

05-12

$157

The cheapest trip from London to Cardiff was searched and found on May 5, 2026 with a price of $95

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 $95 to $348 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 $104 which is on 2026-05-09.