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London to Cardiff Train

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18/02/2026
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2 days £41.84
3 days £62.64

London to Cardiff by train

The journey from London to Cardiff by train is 133 mi and takes 1 hr 58 mins. There are 21 connections per day, with the first departure at 05:23 and the last at 22:49. It is possible to travel from London to Cardiff by train for as little as £34.05 or as much as £160.43. The best price for this journey is £34.05.

Lowest Price £34.05
Journey Duration 1 hr 58 mins
Connection per Day 21
Lowest Price £34.05
Highest Price £160.43
First Departure 05:23
Last Departure 22:49
Distance 133 mi
Departure London
Arrival Cardiff
Carriers Transport for Wales, Great Western Railway

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Price as departure date approaches

Train companies may charge higher ticket prices as the date of departure approaches. Prices in the next days can range from around £34.09 to £63.19 but may be subject to change. Our advice is to book as early as possible to potentially save up to 46% on your trip!

Find the best day to travel to Cardiff by train

When travelling to Cardiff by train, if you want to avoid crowds you can check how frequently our customers are travelling in the next 30-days using the graph below. On average, the peak hours to travel are between 6:30am and 9am in the morning, or between 4pm and 7pm in the evening. Please keep this in mind when travelling to your point of departure as you may need some extra time to arrive, particularly in big cities!

Services on board Transport for Wales and Great Western Railway from London to Cardiff
Compare services on board when travelling from London to Cardiff by train.
Facilities Transport for Wales Great Western Railway
quiet_zone Quiet zone check check
wifi WiFi check check
power_sockets Power sockets check check
luggage Luggage check check
food_and_drink Food and drink check check

London to Cardiff CO2 Emissions by Train

Ecology
Train
14.98kg
Bus
16.05kg
Flight
42.81kg
Car
34.25kg
What are the CO2 emissions from London to Cardiff by train? The CO2 emissions from taking the train between London and Cardiff are 14.98kg.
How much CO2 do I save by taking the train between London and Cardiff? By taking the train between London and Cardiff you will save 27.83kg CO2 emissions compared to a flight, 1.07kg compared to a bus and 19.27kg compared to a car.

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Frequently Asked Questions

How much is a train ticket from London to Cardiff?
A train ticket from London to Cardiff is £64.85. However the price varies depending on how early you buy, and if it's peak time to travel. Occasionally you can find them for as cheap as £34.05.
What's the cheapest train ticket from London to Cardiff?
The cheapest ticket you can get from London to Cardiff is £34.05. We recommend booking as early as possible and off-peak hours to get the cheapest ticket possible. Off-peak times are usually from 09:30 to 16:00, and after 19:00.
What's the distance between London and Cardiff by train?
London to Cardiff is 133 mi.
How long does the train between London and Cardiff take?
London to Cardiff is on average 1 hr 58 mins. However the fastest option will get you there in 1 hr 44 mins.
Which companies operate from London to Cardiff?
The train journey from London to Cardiff is covered by 2 operator(s). On Virail you can find these carriers that provide services on this route: Transport for Wales, Great Western Railway and Elizabeth line.
How many train connections per day go from London to Cardiff?
London to Cardiff has 21 connection(s) per day on average.
What time does the first train from London to Cardiff leave?
The earliest train from London to Cardiff departs at 05:23. However be sure to check with us the schedule on the day you want to leave as the time may differ.
What time does the last train from London to Cardiff depart?
The latest train from London to Cardiff departs at 22:49. However be sure to check with us the schedule on the day you want to leave as the time may differ.
Should I book my ticket from London to Cardiff in advance?
If you can, we recommend booking your ticket as early as possible to ensure you get better savings. The cheapest train ticket we have found is £34.05 but this may be subject to change depending on the day of travel, hour you wish to depart and how far in advance you book.
How many direct connections depart from London to Cardiff?
There are on average 20 direct connection(s) from London to go to Cardiff.
What's the fastest journey time between London to Cardiff by train?
The fastest journey time by train between London and Cardiff is 1 hr 44 mins.
Is there a direct train from London to Cardiff?
Yes, there is a direct train between London and Cardiff.
What are the CO2 emissions for London to Cardiff by train?
The train journey from London to Cardiff creates 14.98kg of CO2 emissions.

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