Train Swansea to Treforest from £29 | Tickets & Timetables

Trip Overview

The average train between Swansea and Treforest takes 1h 37m and the fastest train takes 1h 24m. There is an hourly train service from Swansea to Treforest. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.

1h 37m
Duration: 57 mi
Distance: £29
Average price: Hourly
Frequency

Train

best

Take the train from Swansea to Cardiff Centraltrain Swansea - London Paddington / ...
Take the train from Cardiff Central to Trefforesttrain Cardiff Central - Aberdare / ...

1h 26m

£21–46

Swansea to Treforest train times

Trains run hourly between Swansea and Treforest. The earliest departure is at 3:46 AM at night, and the last departure from Swansea is at 10:32 PM which arrives into Treforest at 12:11 AM. All services require a transfer, and take on average 1h 37m. The schedules shown below are for the next available departures.

Departing Monday, May 18, 2026

6:50 PM → 8:23 PM
1h 33m • 1 change
7:19 PM → 8:53 PM
1h 34m • 1 change
7:54 PM → 9:27 PM
1h 33m • 1 change
8:52 PM → 10:27 PM
1h 35m • 1 change
Show more

Departing Tuesday, May 19, 2026

3:46 AM → 5:56 AM
2h 10m • 1 change
4:59 AM → 6:28 AM
1h 29m • 1 change
5:29 AM → 6:53 AM
1h 24m • 1 change
5:57 AM → 7:23 AM
1h 26m • 1 change
Show more

Departing Wednesday, May 20, 2026

3:46 AM → 5:56 AM
2h 10m • 1 change
4:59 AM → 6:28 AM
1h 29m • 1 change
5:29 AM → 6:53 AM
1h 24m • 1 change
5:57 AM → 7:23 AM
1h 26m • 1 change
Show more

Frequently asked questions

Want to know about travelling from Swansea to Treforest? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.