How much does a cheap train ticket from Swansea to London cost?

The average train ticket price from Swansea to London is $129. The best way to find cheap train tickets from Swansea to London 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 trip from Swansea to London?

A train trip between Swansea and London is around 2h 52m, although the fastest train will take about 2h 44m. This is the time it takes to travel the 265 km that separates the two cities.

How many daily trains are there between Swansea and London?

The number of trains from Swansea to London can differ depending on the day of the week. On average, there are 9. Some trains are direct while others include transferring trains. Simplify your train trip from Swansea to London by comparing and selecting the train that fits your travel style and budget on Busbud.

Which train companies travel from Swansea to London?

When taking the train from Swansea to London, you can travel comfortably and safely with Great Western Railway.

Train Swansea to London from $72

Next train departures

Next departures for Swansea to London on November 18
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	6:23pm	Swansea	2h 47m	9:10pm	London Paddington	CheapestFastest
Train	3:22pm	Swansea	2h 51m	6:13pm	London Paddington	No tags
Train	3:22pm	Swansea	2h 51m	6:13pm	London Paddington	No tags
Train	4:22pm	Swansea	2h 52m	7:14pm	London Paddington	No tags
Train	4:22pm	Swansea	2h 52m	7:14pm	London Paddington	No tags

Next departures for Swansea to London on November 19
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	6:23pm	Swansea	2h 47m	9:10pm	London Paddington	Cheapest
Train	6:23pm	Swansea	2h 47m	9:10pm	London Paddington	Fastest
Train	7:18am	Swansea	2h 56m	10:14am	London Paddington	No tags
Train	7:18am	Swansea	2h 56m	10:14am	London Paddington	No tags
Train	7:43am	Swansea	2h 53m	10:36am	London Paddington	No tags

Next departures for Swansea to London on November 20
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	6:23pm	Swansea	2h 47m	9:10pm	London Paddington	CheapestFastest
Train	7:18am	Swansea	2h 56m	10:14am	London Paddington	No tags
Train	7:18am	Swansea	2h 56m	10:14am	London Paddington	No tags
Train	7:43am	Swansea	2h 53m	10:36am	London Paddington	No tags
Train	7:43am	Swansea	2h 53m	10:36am	London Paddington	No tags

Next departures for Swansea to London on November 21
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	4:22pm	Swansea	2h 52m	7:14pm	London Paddington	Cheapest
Train	6:23pm	Swansea	2h 47m	9:10pm	London Paddington	Fastest
Train	7:18am	Swansea	2h 56m	10:14am	London Paddington	No tags
Train	7:18am	Swansea	2h 56m	10:14am	London Paddington	No tags
Train	7:43am	Swansea	2h 53m	10:36am	London Paddington	No tags

Next departures for Swansea to London on November 22
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	3:23pm	Swansea	2h 50m	6:13pm	London Paddington	Cheapest
Train	10:23am	Swansea	2h 49m	1:12pm	London Paddington	Fastest
Train	7:22am	Swansea	2h 51m	10:13am	London Paddington	No tags
Train	7:22am	Swansea	2h 51m	10:13am	London Paddington	No tags
Train	7:47am	Swansea	2h 57m	10:44am	London Paddington	No tags

Next departures for Swansea to London on November 23
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	7:50am	Swansea	3h	10:50am	London Paddington	Cheapest
Train	4:25pm	Swansea	2h 44m	7:09pm	London Paddington	Fastest
Train	7:50am	Swansea	3h	10:50am	London Paddington	No tags
Train	8:35am	Swansea	3h 11m	11:46am	London Paddington	No tags
Train	8:35am	Swansea	3h 11m	11:46am	London Paddington	No tags

Next departures for Swansea to London on November 24
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	3:22pm	Swansea	2h 51m	6:13pm	London Paddington	Cheapest
Train	6:23pm	Swansea	2h 47m	9:10pm	London Paddington	Fastest
Train	7:18am	Swansea	2h 56m	10:14am	London Paddington	No tags
Train	7:18am	Swansea	2h 56m	10:14am	London Paddington	No tags
Train	7:43am	Swansea	2h 53m	10:36am	London Paddington	No tags

Next departures for Swansea to London on November 25
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	6:23pm	Swansea	2h 47m	9:10pm	London Paddington	CheapestFastest
Train	7:18am	Swansea	2h 56m	10:14am	London Paddington	No tags
Train	7:18am	Swansea	2h 56m	10:14am	London Paddington	No tags
Train	7:43am	Swansea	2h 53m	10:36am	London Paddington	No tags
Train	7:43am	Swansea	2h 53m	10:36am	London Paddington	No tags

Last refresh of the prices: Today at 1:13 PM GMT.

Compare 3 ways to go from Swansea to London

We recommend carpooling

Among the sustainable travel choices, the carpool stands out as a good way to reach London. The journey takes about 3 hours 10 minutes, and with fares starting at just $29, it presents an excellent value for a comfortable ride.

1carpool per day

3h 10mAverage Duration

265 kmDistance

11kgCO₂ emissions

	Average Price	Average Duration	CO₂ emissions
Bus	Average Price$18 - $162	Average Duration5h 35m	CO₂ emissions 7kg CO₂e
Train	Average Price$75 - $258	Average Duration2h 52m	CO₂ emissions 6kg CO₂e
Carpool	Average Price$29 - $49	Average Duration3h 10m	CO₂ emissions 11kg CO₂e

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. Travellers 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 $75

Great Western Railway Swansea London recent customer reviews

All good but delayed 30 min at Reading for a medical emergency

Matt S.

February 4, 2022

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

Where are the popular train stations and stops in Swansea and London?

Stops in Swansea

A - Swansea University - Bay Campus

Stops in London

A - King's Cross

B - St Pancras International

C - Euston Station

D - Waterloo

E - London Bridge

F - Marylebone

Frequently asked questions about travelling from Swansea to London by train

How much does a cheap train ticket from Swansea to London cost?
The average train ticket price from Swansea to London is $129. The best way to find cheap train tickets from Swansea to London 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 trip from Swansea to London?
A train trip between Swansea and London is around 2h 52m, although the fastest train will take about 2h 44m. This is the time it takes to travel the 265 km that separates the two cities.
How many daily trains are there between Swansea and London?
The number of trains from Swansea to London can differ depending on the day of the week. On average, there are 9. Some trains are direct while others include transferring trains. Simplify your train trip from Swansea to London by comparing and selecting the train that fits your travel style and budget on Busbud.
Which train companies travel from Swansea to London?
When taking the train from Swansea to London, you can travel comfortably and safely with Great Western Railway.

Find cheapest prices for trains

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

Best price found

11-16

$128

11-17

$120

Today

$112

11-19

$112

11-20

$112

11-21

$120

11-22

$120

11-23

$128

The cheapest trip from Swansea to London was searched and found on Nov 19, 2025 with a price of $112

To save money and be sure you have the best seat, it's a good idea to buy your train tickets from Swansea to London, as early as possible.

You can expect to pay from $112 to $247 for a train ticket from Swansea to London based on the last 2 days. You can expect to find the cheapest price for the trip at $112 which is on 2025-11-19.