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

The cheapest train tickets from Swansea to London start from £41. The average price for this train route is around £72. Busbud recommends booking your tickets in advance for the best chance of getting the lowest possible price.

How long is the train journey from Swansea to London?

The average train journey time from Swansea to London is 2h 52m, covering a distance of 162 miles. The fastest 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 run on this route with 9 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 07:16. And the latest train departs at 20:23.

Train Swansea to London from £43

Next train departures

Next departures from Swansea to London on 30 November
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	15:23	Swansea	3h 3m	18:26	London Paddington	Cheapest
Train	16:25	Swansea	3h 1m	19:26	London Paddington	Fastest
Train	07:55	Swansea	3h 10m	11:05	London Paddington	No tags
Train	08:35	Swansea	3h 3m	11:38	London Paddington	No tags
Train	10:22	Swansea	3h 4m	13:26	London Paddington	No tags

Next departures from Swansea to London on 1 December
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	08:21	Swansea	2h 59m	11:20	London Paddington	Cheapest
Train	18:23	Swansea	2h 47m	21:10	London Paddington	Fastest
Train	07:18	Swansea	2h 56m	10:14	London Paddington	No tags
Train	07:18	Swansea	2h 56m	10:14	London Paddington	No tags
Train	07:43	Swansea	2h 53m	10:36	London Paddington	No tags

Next departures from Swansea to London on 2 December
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	18:23	Swansea	2h 47m	21:10	London Paddington	CheapestFastest
Train	07:18	Swansea	2h 56m	10:14	London Paddington	No tags
Train	07:18	Swansea	2h 56m	10:14	London Paddington	No tags
Train	07:43	Swansea	2h 53m	10:36	London Paddington	No tags
Train	07:43	Swansea	2h 53m	10:36	London Paddington	No tags

Next departures from Swansea to London on 3 December
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	18:23	Swansea	2h 47m	21:10	London Paddington	Cheapest
Train	18:23	Swansea	2h 47m	21:10	London Paddington	Fastest
Train	07:18	Swansea	2h 56m	10:14	London Paddington	No tags
Train	07:18	Swansea	2h 56m	10:14	London Paddington	No tags
Train	07:43	Swansea	2h 53m	10:36	London Paddington	No tags

Next departures from Swansea to London on 4 December
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	18:23	Swansea	2h 47m	21:10	London Paddington	CheapestFastest
Train	07:18	Swansea	2h 56m	10:14	London Paddington	No tags
Train	07:18	Swansea	2h 56m	10:14	London Paddington	No tags
Train	07:43	Swansea	2h 53m	10:36	London Paddington	No tags
Train	07:43	Swansea	2h 53m	10:36	London Paddington	No tags

Next departures from Swansea to London on 5 December
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	08:21	Swansea	2h 59m	11:20	London Paddington	Cheapest
Train	18:23	Swansea	2h 47m	21:10	London Paddington	Fastest
Train	07:18	Swansea	2h 56m	10:14	London Paddington	No tags
Train	07:18	Swansea	2h 56m	10:14	London Paddington	No tags
Train	07:43	Swansea	2h 53m	10:36	London Paddington	No tags

Next departures from Swansea to London on 6 December
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	07:22	Swansea	2h 51m	10:13	London Paddington	Cheapest
Train	10:23	Swansea	2h 49m	13:12	London Paddington	Fastest
Train	07:22	Swansea	2h 51m	10:13	London Paddington	No tags
Train	07:47	Swansea	2h 57m	10:44	London Paddington	No tags
Train	07:47	Swansea	2h 57m	10:44	London Paddington	No tags

Last refresh of the prices: Today at 03:08 GMT.

Compare 3 ways to travel 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 40 minutes and with fares starting at just £16, it presents an excellent value for a comfortable ride.

1carpool per day

3h 40mAverage duration

164 milesDistance

11kgCO₂ emissions

	Average price	Average duration	CO₂ emissions
Bus	Average price£10 - £88	Average duration5h 30m	CO₂ emissions 7kg CO₂e
Train	Average price£41 - £127	Average duration2h 52m	CO₂ emissions 6kg CO₂e
Carpool	Average price£16 - £26	Average duration3h 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 Wi-Fi. Great Western Railway ticket prices on this trip start at £41

Great Western Railway Swansea London recent customer reviews

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

Matt S.

4 February 2022

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

Frequently asked questions about travelling from Swansea to London by train

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

How much does a train ticket cost from Swansea to London?
The cheapest train tickets from Swansea to London start from £41. The average price for this train route is around £72. Busbud recommends booking your tickets in advance for the best chance of getting the lowest possible price.
How long is the train journey from Swansea to London?
The average train journey time from Swansea to London is 2h 52m, covering a distance of 162 miles. The fastest 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 run on this route with 9 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 07:16. And the latest train departs at 20:23.

Find cheapest prices for trains

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

Best price found

28/11

£70

29/11

£71

Today

£70

01/12

£70

02/12

£66

03/12

£66

04/12

£66

05/12

£70

The cheapest trip from Swansea to London was searched and found on 2 Dec 2025 with a price of £66

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 £66 to £251 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 £66, which is on 2025-12-02.