Next departures
| Operated by | Vehicle type | Departure time | Departure location | Trip duration | Arrival time | Arrival location | Recommended | Price and booking link |
|---|---|---|---|---|---|---|---|---|
 | London Paddington | Cardiff Central | Cheapest | |||||
| London Paddington | Cardiff Central | Fastest | |||||
| London Paddington | Cardiff Central | No tags | |||||
| London Paddington | Cardiff Central | No tags | |||||
| London Paddington | Cardiff Central | No tags |
Last refresh of the prices: Today at 1:23 PM GMT.
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Compare 3 ways to travel from London to Cardiff
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 US$14, it presents an excellent value for a comfortable ride.
Train London to Cardiff: Trip Overview
Please note, this information is subject to change.
Train Companies
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 US$47
Great Western Railway London Cardiff recent customer reviews
Slight longer than usual, but overall great journey
Khadija O.
London to Cardiff Train
Busbud shows you the best train ticket fares and train schedules so you can plan and book a trip by train easily from London to Cardiff.
We make it our job to connect you with the most dependable companies that offer train services from London to Cardiff.
Whether it is train tickets or first class train tickets going to Cardiff from London, we help you find what you're looking for based on how much of a budget you have.
Where are the popular train stations and stops in London and Cardiff?
Frequently asked questions on the trip London - Cardiff
How much does a cheap train ticket from London to Cardiff cost?
The average train ticket price from London to Cardiff is US$99. 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 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 212 km that separates the two cities.
How many daily train 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.
The cheapest trip from London to Cardiff was searched and found on 01 Nov 2025 with a price of US$72To 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 US$72 to US$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 US$83, which is on 2025-11-02.
About Train Travel
Train Travel Tips
Do you like to go fast? With high-speed trains going faster than 300 km/h on certain routes, the time will fly by. Taking a train between London and Cardiff is also a great way to travel to arrive in the city centre and save more time for your stay in Cardiff.
Whether you take a regional or high-speed train to Cardiff, you’ll help reduce the environmental impact and carbon footprint of your trip. As you watch the landscapes unfold before your eyes, you can tell yourself that with this choice, you are making sure they remain protected.
By choosing the train between London and Cardiff, you emit up to 30 times less CO2 than for the same journey made by plane or car!
Tune out to the fine sounds of your best music playlist on your train trip from London to Cardiff while indulging in miles on end of beautiful scenic views.
Did you know?
You can find dogs as passengers on the trains of Moscow, where there is a large number of stray dogs. Over time, the dogs have learned the inner workings of the rail system and it is not uncommon to find one travelling between the city and the suburbs.
You can find the straightest railway in the world in Australia. This railway line is 478 kilometres long and is also considered the longest and straightest railway line in the world.
Some trains in Sweden can recover more than a fifth of the energy they use by braking. This is especially true with ore trains as they descend from Narvik to Kiruna.
Top Travelled Train Routes
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