Carmarthen to Amersham Trains

Carmarthen to Amersham trains

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Trip Overview

The average train between Carmarthen and Amersham takes 5h 18m and the fastest train takes 4h 24m. There is a train service every few hours from Carmarthen to Amersham. 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 18m
Duration: 245 mi
Distance: £124
Average price: Hourly
Frequency

Train

best

Take the train from Carmarthen to Swanseatrain Carmarthen - Cardiff Central / ...
Take the train from Swansea to London Paddingtontrain Swansea - London Paddington / ...

5h 15m

£102–192

Carmarthen to Amersham train times

Trains run hourly between Carmarthen and Amersham. The earliest departure is at 4:37 AM at night, and the last departure from Carmarthen is at 10:41 PM which arrives into Amersham at 8:01 AM. All services require a transfer at Swansea and take an average of 5h 18m. The schedules shown below are for the next available departures.

Departing Saturday, October 17, 2026

8:30 AM → 1:01 PM
4h 31m • 3 changes
9:30 AM → 2:01 PM
4h 31m • 3 changes
10:30 AM → 3:01 PM
4h 31m • 3 changes
11:30 AM → 4:01 PM
4h 31m • 3 changes
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Departing Sunday, October 18, 2026

9:34 AM → 2:31 PM
4h 57m • 3 changes
10:34 AM → 3:31 PM
4h 57m • 3 changes
11:25 AM → 4:31 PM
5h 6m • 3 changes
12:31 PM → 5:01 PM
4h 30m • 3 changes
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Departing Monday, October 19, 2026

4:37 AM → 9:31 AM
4h 54m • 3 changes
5:32 AM → 10:01 AM
4h 29m • 3 changes
6:52 AM → 11:31 AM
4h 39m • 3 changes
7:23 AM → 12:31 PM
5h 8m • 3 changes
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Departing Tuesday, October 20, 2026

4:37 AM → 9:31 AM
4h 54m • 3 changes
5:32 AM → 10:01 AM
4h 29m • 3 changes
6:52 AM → 11:31 AM
4h 39m • 3 changes
7:23 AM → 12:31 PM
5h 8m • 3 changes
Show more

Frequently asked questions

Want to know about travelling from Carmarthen to Amersham? 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.