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

The average train ticket price from London to Cardiff is $101. The best way to find 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 train 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 132 miles 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 have layovers. 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 traveling between London and Cardiff leave from King's Cross or St Pancras International and arrive at Cardiff Central.

What are the best sights and things to do in Cardiff?

Once in Cardiff, you can explore the city. The top sights and things to do are Brecon Beacons National Park, Cardiff International White Water, St John the Baptist Church, Cardiff Castle, Wales Millennium Centre.

Train London to Cardiff from $55

Next train departures

Next departures for London to Cardiff on November 21
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	7:48am	London Paddington	1h 47m	9:35am	Cardiff Central	Fastest
Train	7:12am	London Paddington	1h 56m	9:08am	Cardiff Central	No tags
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

Next departures for London to Cardiff on November 22
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	3:48pm	London Paddington	1h 48m	5:36pm	Cardiff Central	CheapestFastest
Train	3:48pm	London Paddington	1h 48m	5:36pm	Cardiff Central	No tags
Train	4:16pm	London Paddington	1h 54m	6:10pm	Cardiff Central	No tags
Train	4:16pm	London Paddington	1h 54m	6:10pm	Cardiff Central	No tags
Train	4:48pm	London Paddington	1h 48m	6:36pm	Cardiff Central	No tags

Next departures for London to Cardiff on November 23
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	8:33am	London Paddington	2h	10:33am	Cardiff Central	Cheapest
Train	10:45am	London Paddington	1h 48m	12:33pm	Cardiff Central	Fastest
Train	8:33am	London Paddington	2h	10:33am	Cardiff Central	No tags
Train	9:31am	London Paddington	1h 59m	11:30am	Cardiff Central	No tags
Train	9:31am	London Paddington	1h 59m	11:30am	Cardiff Central	No tags

Next departures for London to Cardiff on November 24
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	7:48am	London Paddington	1h 47m	9:35am	Cardiff Central	Fastest
Train	7:12am	London Paddington	1h 56m	9:08am	Cardiff Central	No tags
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

Next departures for London to Cardiff on November 25
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	7:48am	London Paddington	1h 47m	9:35am	Cardiff Central	Fastest
Train	7:12am	London Paddington	1h 56m	9:08am	Cardiff Central	No tags
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

Next departures for London to Cardiff on November 26
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	7:48am	London Paddington	1h 47m	9:35am	Cardiff Central	Fastest
Train	7:12am	London Paddington	1h 56m	9:08am	Cardiff Central	No tags
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

Next departures for London to Cardiff on November 27
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	7:48am	London Paddington	1h 47m	9:35am	Cardiff Central	Fastest
Train	7:12am	London Paddington	1h 56m	9:08am	Cardiff Central	No tags
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

Last refresh of the prices: Today at 11:31 PM GMT.

Compare 3 ways to go from London to Cardiff

We recommend carpooling

Among the sustainable travel choices, the carpool stands out as the good way to reach Cardiff. The journey takes about 2 hours 40 minutes and with fares starting at just $8, it presents an excellent value for a comfortable ride.

1carpool per day

2h 40mAverage Duration

131 milesDistance

9kgCO₂ emissions

	Average Price	Average Duration	CO₂ emissions
Bus	Average Price$12 - $96	Average Duration3h 40m	CO₂ emissions 5kg CO₂e
Train	Average Price$47 - $307	Average Duration1h 50m	CO₂ emissions 5kg CO₂e
Carpool	Average Price$8 - $36	Average Duration2h 40m	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
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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
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F
Marylebone
Melcombe Pl, London NW1 6JJ, UK
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Cardiff

A
Cardiff Central
Cardiff Central, UK
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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. Travelers 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 $47

Great Western Railway London Cardiff recent customer reviews

Slight longer than usual, but overall great journey

Khadija O.

July 4, 2023

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

Frequently asked questions about traveling from London to Cardiff by train

How much does a train ticket from London to Cardiff cost?
How long is the train trip from London to Cardiff?
How many daily trains are there between London and Cardiff?
Which train companies travel from London to Cardiff?
What are the departure and arrival stations for a train from London to Cardiff?
What are the best sights and things to do in Cardiff?

Find cheapest prices for trains

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

Best price found

11/18

$142

11/19

$208

Today

$208

11/21

$109

11/22

$83

11/23

$83

11/24

$113

11/25

$109

The cheapest trip from London to Cardiff was searched and found on Nov 22, 2025 with a price of $83

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 $83 to $292 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 $83 which is on 2025-11-22.