Great Western Railway
Avanti West Coast

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London to Swansea by train

It takes an average of 3h 11m to travel from London to Swansea by train, over a distance of around 164 miles (264 km). There are normally 27 trains per day travelling from London to Swansea and tickets for this journey start from £30.20 when you book in advance.

First train


Last train


Departure station


Arrival station


Journey time

From 2h 41m


164 miles (264 km)


27 trains per day


Direct trains available


From £30.20

Train operators

Great Western Railway

Taking the train from London to Swansea

The train from London to Swansea gets you into the heart of Wales' second city in just three hours. If you're stuck for something to do along the way, why not brush up on a few everyday Welsh phrases? With departures from around dawn, you'll arrive in time to say bore da (good morning).

It's a glorious trip through the Welsh countryside, and there's loads to distract you onboard too when you travel with Great Western Railway. Thanks to the free WiFi and power sockets near seats, you’ll be able to browse the internet while you travel without worrying about your phone running out of juice. Are you the kind of person who likes to stretch out? Upgrade to First Class for a roomier seat, plus a stream of snacks and drinks so you'll be fresh and raring to go when you step off the train, ready to take on the city's beaches, restaurants and Mumbles Pier.

Use our Journey Planner to start searching for tickets and find your train from London to Swansea today.

Journey details

Want to know more about your journey from London to Swansea? We've compiled some of the most frequently asked questions by our customers to help you plan your journey.

How long does the train from London to Swansea take?

The average journey time by train between London and Swansea is 3 hours and 11 minutes, with around 27 trains per day. The journey time may be longer on weekends and holidays, so use our Journey Planner on this page to search for a specific travel date.

What's the fastest journey time between London and Swansea by train?

The fastest journey time by train from London to Swansea is 2 hours and 41 minutes.

How much does the train from London to Swansea cost?

Train ticket prices from London to Swansea can start from as little as £30.20 when you book in advance. The cost of tickets can vary depending on the time of day, route and class you book and are usually more expensive if you book on the day.

Is there a direct train from London to Swansea?

Yes, it is possible to travel from London to Swansea without having to change trains. There are 27 direct trains from London to Swansea each day. Though there may be fewer direct services available depending on your exact departure date.

What time does the first train from London to Swansea leave?

The first train from London to Swansea leaves at 04:23. Times and services may vary during weekends and holidays.

What time does the last train from London to Swansea leave?

The last train from London to Swansea leaves at 22:48. Trains that depart in the early morning hours or very late evening may be sleeper services, time and services may also vary during weekends and holidays.

What's the distance between London and Swansea by train?

Trains travelling from London to Swansea cover a distance of around 164 miles (264 km) during the journey.

Looking for more information?

If you’re looking for the return train journey, check out trains from Swansea to London. If you’re looking for other options, you can also catch the bus from London to Swansea.

Cheap train tickets from London to Swansea

Train tickets from London to Swansea start at £30.20 one way for a Standard Class ticket if you book in advance. As most UK train companies increase their prices as the departure date approaches, we’ll help you find the cheapest tickets.

Book in advance

Look out for Advance tickets – they usually come out up to 12 weeks before the departure date and can be cheaper than buying on the day. If you’re here a tad early, sign up for our Advance ticket alert today to get notified when your tickets are released.

Consider a Season Ticket

If you catch this train more than 3 times per week, you could save money with a Season Ticket. With annual, monthly and weekly options available, find out if a season ticket for London to Swansea is right for you.

Use your Railcard

National Railcards offer a 1/3 off eligible train tickets in the UK and can be a great investment if you travel a few times or more in a year. Find out how you can save with a National Railcard here.

Split your tickets

Download our app to find split tickets — courtesy of SplitSave, our handy feature which 'splits' your train tickets where possible to find you a better deal. Learn more about the clever tech behind split tickets, and how to spot SplitSave discounts in our app.

For more money-saving tips on UK and European train travel, read our cheap train tickets guide.

Advance adult single fare. Excludes booking fee. Prices seen by Trainline customers in the last 30 days. Availability limited.
Average savings on fares booked prior to day of travel vs full price fares on day of travel in the UK. Subject to availability. Excludes coach.

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