How much is the train ticket from Swansea to London?

The cheapest train tickets from Swansea to London start at $74. The average price for this train route is around $132. Busbud recommends booking your tickets in advance to increase your chances of getting the lowest possible price.

How long is the train ride from Swansea to London?

The average train trip from Swansea to London takes 2h 53m and covers 261 km. The quickest train gets you there in 2h 44m and is operated by Great Western Railway .

Which train operators serve the Swansea to London route?

Several major train operators serve this route, with 10 trains available per day.

What are the earliest and latest departure times for the train from Swansea to London?

The earliest train from Swansea to London departs at 7:05am. The latest train departs at 8:23pm.

Train Swansea to London from $71

Next train departures

Next departures for Swansea to London on December 12
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	8:21am	Swansea	2h 59m	11:20am	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 54m	10:37am	London Paddington	No tags

Next departures for Swansea to London on December 13
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	7:22am	Swansea	2h 51m	10:13am	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	7:47am	Swansea	2h 56m	10:43am	London Paddington	No tags
Train	7:47am	Swansea	2h 56m	10:43am	London Paddington	No tags

Next departures for Swansea to London on December 14
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	7:55am	Swansea	2h 55m	10:50am	London Paddington	Cheapest
Train	4:25pm	Swansea	2h 44m	7:09pm	London Paddington	Fastest
Train	7:55am	Swansea	2h 55m	10:50am	London Paddington	No tags
Train	7:55am	Swansea	2h 55m	10:50am	London Paddington	No tags
Train	8:35am	Swansea	3h 6m	11:41am	London Paddington	No tags

Next departures for Swansea to London on December 15
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	8:23am	Swansea	2h 57m	11:20am	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	7:44am	Swansea	2h 52m	10:36am	London Paddington	No tags

Next departures for Swansea to London on December 16
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	7:44am	Swansea	2h 52m	10:36am	London Paddington	No tags
Train	7:44am	Swansea	2h 52m	10:36am	London Paddington	No tags

Next departures for Swansea to London on December 17
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	7:44am	Swansea	2h 52m	10:36am	London Paddington	No tags

Next departures for Swansea to London on December 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	7:18am	Swansea	2h 56m	10:14am	London Paddington	No tags
Train	7:18am	Swansea	2h 56m	10:14am	London Paddington	No tags
Train	7:44am	Swansea	2h 52m	10:36am	London Paddington	No tags
Train	7:44am	Swansea	2h 52m	10:36am	London Paddington	No tags

Last refresh of the prices: Today at 10:31 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 2 hours 40 minutes, and with fares starting at just $28, it presents an excellent value for a comfortable ride.

1carpool per day

2h 40mAverage Duration

265 kmDistance

11kgCO₂ emissions

	Average Price	Average Duration	CO₂ emissions
Bus	Average Price$17 - $163	Average Duration5h 30m	CO₂ emissions 6kg CO₂e
Train	Average Price$74 - $481	Average Duration2h 53m	CO₂ emissions 6kg CO₂e
Carpool	Average Price$28 - $35	Average Duration2h 40m	CO₂ emissions 11kg CO₂e

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

Swansea

A
Swansea University - Bay Campus
Elba Crescent, Skewen, Swansea SA1 8QQ, UK
Visit page

London

A
King's Cross
7 York Way, London N1 9AA, UK
Visit page
B
St Pancras International
King's Cross St. Pancras, Euston Rd, Kings Cross, London N1 9AL, UK
Visit page
C
Euston Station
Euston Railway Station B40 The Balcony, Eversholt St, London NW1 2DU, UK
Visit page
D
Waterloo
Waterloo Station Southbank, Station Approach, London SE1 8SW, UK
Visit page
E
London Bridge
51-55 St Thomas St, London SE1 3QX, UK
Visit page
F
Marylebone
Melcombe Pl, London NW1 6JJ, UK
Visit page

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 $74

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, Amtrak Acela

Frequently asked questions about travelling from Swansea to London by train

Please note that schedules, routes, or operator details shown here may be updated or vary at the time of your trip.

How much is the train ticket from Swansea to London?
The cheapest train tickets from Swansea to London start at $74. The average price for this train route is around $132. Busbud recommends booking your tickets in advance to increase your chances of getting the lowest possible price.
How long is the train ride from Swansea to London?
The average train trip from Swansea to London takes 2h 53m and covers 261 km. The quickest train gets you there in 2h 44m and is operated by Great Western Railway.
Which train operators serve the Swansea to London route?
Several major train operators serve this route, with 10 trains available per day.
What are the earliest and latest departure times for the train from Swansea to London?
The earliest train from Swansea to London departs at 7:05am. The latest train departs at 8:23pm.

Find cheapest prices for trains

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

Best price found

12-09

$120

12-10

$120

Today

$120

12-12

$130

12-13

$129

12-14

$129

12-15

$129

12-16

$120

The cheapest trip from Swansea to London was searched and found on Dec 10, 2025 with a price of $120

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 $120 to $261 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 $120 which is on 2025-12-16.