Merthyr Tydfil to Portsmouth Trains

Merthyr Tydfil to Portsmouth trains

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Trip Overview

The average train between Merthyr Tydfil and Portsmouth takes 5h 5m and the fastest train takes 4h 36m. There is a train service every few hours from Merthyr Tydfil to Portsmouth. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.

5h 5m
Duration: 163 mi
Distance: £79
Average price: Hourly
Frequency

Train

best

Take the train from Merthyr Tydfil to Cardiff Centraltrain Merthyr Tydfil - Aberdare / ...
Take the train from Cardiff Central to Portsmouth & Southseatrain Cardiff Central - Portsmouth Harbour

5h 9m

£63–123

Merthyr Tydfil to Portsmouth train times

Trains run hourly between Merthyr Tydfil and Portsmouth. The earliest departure is at 6:09 AM in the morning, and the last departure from Merthyr Tydfil is at 10:37 PM which arrives into Portsmouth at 9:47 AM. All services require a transfer, and take on average 5h 5m. The schedules shown below are for the next available departures.

Departing Sunday, November 8, 2026

5:39 PM → 10:44 PM
5h 5m • 1 change
6:39 PM → 11:52 PM
5h 13m • 1 change
9:39 PM → 9:47 AM
Arrives next day
12h 8m • 1 change

Departing Monday, November 9, 2026

6:09 AM → 10:48 AM
4h 39m • 1 change
7:09 AM → 11:47 AM
4h 38m • 1 change
8:09 AM → 12:47 PM
4h 38m • 1 change
9:09 AM → 1:47 PM
4h 38m • 1 change
Show more

Departing Tuesday, November 10, 2026

6:09 AM → 10:48 AM
4h 39m • 1 change
7:09 AM → 11:47 AM
4h 38m • 1 change
8:09 AM → 12:47 PM
4h 38m • 1 change
9:09 AM → 1:47 PM
4h 38m • 1 change
Show more

Departing Wednesday, November 11, 2026

6:09 AM → 10:48 AM
4h 39m • 1 change
7:09 AM → 11:47 AM
4h 38m • 1 change
8:09 AM → 12:47 PM
4h 38m • 1 change
9:09 AM → 1:47 PM
4h 38m • 1 change
Show more

Departing Thursday, November 12, 2026

6:09 AM → 10:48 AM
4h 39m • 1 change
7:09 AM → 11:47 AM
4h 38m • 1 change
8:09 AM → 12:47 PM
4h 38m • 1 change
9:09 AM → 1:47 PM
4h 38m • 1 change
Show more

Departing Friday, November 13, 2026

6:09 AM → 10:48 AM
4h 39m • 1 change
7:09 AM → 11:47 AM
4h 38m • 1 change
8:09 AM → 12:47 PM
4h 38m • 1 change
9:09 AM → 1:47 PM
4h 38m • 1 change
Show more

Departing Saturday, November 14, 2026

6:09 AM → 10:47 AM
4h 38m • 1 change
7:09 AM → 11:47 AM
4h 38m • 1 change
8:09 AM → 12:47 PM
4h 38m • 1 change
9:09 AM → 1:47 PM
4h 38m • 1 change
Show more

Frequently asked questions

Want to know about travelling from Merthyr Tydfil to Portsmouth? 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.