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

The average train ticket price from London to Cardiff is $142. The best way to find cheap train tickets from London to Cardiff is to book your tickets as early as possible. Prices tend to rise as your travel date approaches, so book in advance to secure the best prices!

How long is the trip from London to Cardiff?

A train trip between London and Cardiff is around 1h 50m, although the fastest train will take about 1h 43m. This is the time it takes to travel the 212 km that separates the two cities.

How many daily trains are there between London and Cardiff?

The number of trains from London to Cardiff can differ depending on the day of the week. On average, there are 16. Some trains are direct while others include transferring trains. Simplify your train trip from London to Cardiff by comparing and selecting the train that fits your travel style and budget on Busbud.

Which train companies travel from London to Cardiff?

When taking the train from London to Cardiff, you can travel comfortably and safely with Great Western Railway.

What are the departure and arrival stations for a train from London to Cardiff?

Trains travelling between London and Cardiff leave from King's Cross or St Pancras International and arrive at Cardiff Central.

Train London to Cardiff from $79

Next train departures

Next departures for London to Cardiff on November 15
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 49m	10:37am	Cardiff Central	No tags
Train	8:48am	London Paddington	1h 49m	10:37am	Cardiff Central	No tags

Next departures for London to Cardiff on November 16
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	8:33am	London Paddington	1h 56m	10:29am	Cardiff Central	Cheapest
Train	10:42am	London Paddington	1h 51m	12:33pm	Cardiff Central	Fastest
Train	8:33am	London Paddington	1h 56m	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 November 17
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	7:12am	London Paddington	1h 56m	9:08am	Cardiff Central	Cheapest
Train	7:48am	London Paddington	1h 47m	9:35am	Cardiff Central	Fastest
Train	7:48am	London Paddington	1h 47m	9:35am	Cardiff Central	No tags
Train	8:18am	London Paddington	1h 51m	10:09am	Cardiff Central	No tags
Train	8:18am	London Paddington	1h 51m	10:09am	Cardiff Central	No tags

Next departures for London to Cardiff on November 18
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	7:12am	London Paddington	1h 56m	9:08am	Cardiff Central	Cheapest
Train	7:48am	London Paddington	1h 47m	9:35am	Cardiff Central	Fastest
Train	7:48am	London Paddington	1h 47m	9:35am	Cardiff Central	No tags
Train	8:18am	London Paddington	1h 51m	10:09am	Cardiff Central	No tags
Train	8:18am	London Paddington	1h 51m	10:09am	Cardiff Central	No tags

Next departures for London to Cardiff on November 19
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	7:12am	London Paddington	1h 56m	9:08am	Cardiff Central	Cheapest
Train	7:48am	London Paddington	1h 47m	9:35am	Cardiff Central	Fastest
Train	7:48am	London Paddington	1h 47m	9:35am	Cardiff Central	No tags
Train	8:18am	London Paddington	1h 51m	10:09am	Cardiff Central	No tags
Train	8:18am	London Paddington	1h 51m	10:09am	Cardiff Central	No tags

Next departures for London to Cardiff on November 20
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	7:12am	London Paddington	1h 56m	9:08am	Cardiff Central	Cheapest
Train	7:48am	London Paddington	1h 47m	9:35am	Cardiff Central	Fastest
Train	7:48am	London Paddington	1h 47m	9:35am	Cardiff Central	No tags
Train	8:18am	London Paddington	1h 51m	10:09am	Cardiff Central	No tags
Train	8:18am	London Paddington	1h 51m	10:09am	Cardiff Central	No tags

Next departures for London to Cardiff on November 21
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	7:12am	London Paddington	1h 56m	9:08am	Cardiff Central	Cheapest
Train	7:48am	London Paddington	1h 47m	9:35am	Cardiff Central	Fastest
Train	7:48am	London Paddington	1h 47m	9:35am	Cardiff Central	No tags
Train	8:18am	London Paddington	1h 51m	10:09am	Cardiff Central	No tags
Train	8:18am	London Paddington	1h 51m	10:09am	Cardiff Central	No tags

Next departures for London to Cardiff on November 22
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 49m	10:37am	Cardiff Central	No tags
Train	3:48pm	London Paddington	1h 48m	5:36pm	Cardiff Central	No tags

Last refresh of the prices: Today at 2:16 AM GMT.

Compare 3 ways to go 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 40 minutes, and with fares starting at just $20, it presents an excellent value for a comfortable ride.

1carpool per day

2h 40mAverage Duration

212 kmDistance

9kgCO₂ emissions

	Average Price	Average Duration	CO₂ emissions
Bus	Average Price$17 - $138	Average Duration3h 50m	CO₂ emissions 5kg CO₂e
Train	Average Price$68 - $452	Average Duration1h 50m	CO₂ emissions 5kg CO₂e
Carpool	Average Price$20 - $49	Average Duration2h 40m	CO₂ emissions 9kg CO₂e

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 WiFi. Great Western Railway ticket prices on this trip start at $68

Great Western Railway London Cardiff recent customer reviews

Slight longer than usual, but overall great journey

Khadija O.

July 4, 2023

GB train and bus companies:Amtrak, Trenitalia, Renfe, VIA Rail Canada, RegioJet, FlixTrain, CrossCountry

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

Stops in London

A - King's Cross

B - St Pancras International

C - Euston Station

D - Waterloo

E - London Bridge

F - Marylebone

Stops in Cardiff

A - Cardiff Central

Frequently asked questions about travelling from London to Cardiff by train

How much does a cheap train ticket from London to Cardiff cost?
The average train ticket price from London to Cardiff is $142. The best way to find cheap train tickets from London to Cardiff is to book your tickets as early as possible. Prices tend to rise as your travel date approaches, so book in advance to secure the best prices!
How long is the trip from London to Cardiff?
A train trip between London and Cardiff is around 1h 50m, although the fastest train will take about 1h 43m. This is the time it takes to travel the 212 km that separates the two cities.
How many daily trains are there between London and Cardiff?
The number of trains from London to Cardiff can differ depending on the day of the week. On average, there are 16. Some trains are direct while others include transferring trains. Simplify your train trip from London to Cardiff by comparing and selecting the train that fits your travel style and budget on Busbud.
Which train companies travel from London to Cardiff?
When taking the train from London to Cardiff, you can travel comfortably and safely with Great Western Railway.
What are the departure and arrival stations for a train from London to Cardiff?
Trains travelling between London and Cardiff leave from King's Cross or St Pancras International and arrive at Cardiff Central.

Find cheapest prices for trains

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

Best price found

11-13

$104

11-14

$103

Today

$103

11-16

$119

11-17

$156

11-18

$150

11-19

$150

11-20

$144

The cheapest trip from London to Cardiff was searched and found on Nov 15, 2025 with a price of $103

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 $103 to $420 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 $119 which is on 2025-11-16.