Amersham to Carmarthen Trains

Amersham to Carmarthen trains

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Trip Overview

The average train between Amersham and Carmarthen takes 5h 10m and the fastest train takes 4h 38m. There is a train service every few hours from Amersham to Carmarthen. 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 10m
Duration: 245 mi
Distance: £124
Average price: Hourly
Frequency

Train

best

Take the train from London Paddington to Swanseatrain London Paddington - Swansea / ...
Take the train from Swansea to Carmarthentrain Bristol Temple Meads - Milford Haven / ...

5h 18m

£101–192

Amersham to Carmarthen train times

Trains run hourly between Amersham and Carmarthen. The earliest departure is at 5:40 AM in the morning, and the last departure from Amersham is at 9:38 PM which arrives into Carmarthen at 6:47 AM. All services require a transfer at London Marylebone and take an average of 5h 10m. The schedules shown below are for the next available departures.

Departing Monday, October 19, 2026

1:38 PM → 6:27 PM
4h 49m • 3 changes
2:38 PM → 7:33 PM
4h 55m • 3 changes
3:08 PM → 7:55 PM
4h 47m • 3 changes
3:38 PM → 8:27 PM
4h 49m • 3 changes
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Departing Tuesday, October 20, 2026

5:40 AM → 10:30 AM
4h 50m • 3 changes
6:45 AM → 11:45 AM
4h 59m • 3 changes
7:49 AM → 12:36 PM
4h 47m • 3 changes
8:37 AM → 1:26 PM
4h 49m • 3 changes
Show more

Departing Wednesday, October 21, 2026

5:40 AM → 10:30 AM
4h 50m • 3 changes
6:45 AM → 11:45 AM
4h 59m • 3 changes
7:49 AM → 12:36 PM
4h 47m • 3 changes
8:37 AM → 1:26 PM
4h 49m • 3 changes
Show more

Departing Thursday, October 22, 2026

5:40 AM → 10:30 AM
4h 50m • 3 changes
6:45 AM → 11:45 AM
4h 59m • 3 changes
7:49 AM → 12:36 PM
4h 47m • 3 changes
8:37 AM → 1:26 PM
4h 49m • 3 changes

Frequently asked questions

Want to know about travelling from Amersham to Carmarthen? 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.