Train tickets from London to Cardiff

Next train departures

Next departures for London to Cardiff on November 16
Operated byVehicle typeDeparture timeDeparture locationTrip durationArrival timeArrival locationRecommendedPrice and booking link
Great Western RailwayTrain
London Paddington
Cardiff CentralCheapest
Great Western RailwayTrain
London Paddington
Cardiff CentralFastest
Great Western RailwayTrain
London Paddington
Cardiff CentralNo tags
Great Western RailwayTrain
London Paddington
Cardiff CentralNo tags
Great Western RailwayTrain
London Paddington
Cardiff CentralNo 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$17 - $138Average Duration3h 50m
5kg CO₂e
Average Price$68 - $452Average Duration1h 50m
5kg CO₂e
Carpool
Average Price$20 - $49Average Duration2h 40m
9kg CO₂e

Frequently asked questions about travelling from London to Cardiff by train

  1. 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!

  2. 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.

  3. 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.

  4. 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.

  5. 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
busbud logoThe 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.

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