Boston to Carmarthen Trains

Trip Overview

The average train between Boston and Carmarthen takes 8h 36m and the fastest train takes 7h 13m. The train service runs several times per day from Boston 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.

8h 36m
Duration: 298 mi
Distance: £156
Average price: Every 3 hours
Frequency

Train

best

Take the train from Boston to Nottinghamtrain
Take the train from Nottingham to Cardiff Centraltrain
Take the train from Cardiff Central to Carmarthentrain

£121–206

Boston to Carmarthen train times

Trains run every 3 hours between Boston and Carmarthen. The earliest departure is at 6:13 AM in the morning, and the last departure from Boston is at 9:54 PM which arrives into Carmarthen at 3:20 PM. All services require a transfer at Nottingham and take an average of 8h 36m. The schedules shown below are for the next available departures.

Departing Thursday, October 29, 2026

1:51 PM → 9:39 PM
7h 47m • 2 changes
3:48 PM → 12:05 AM
Arrives next day
8h 16m • 2 changes
4:52 PM → 1:03 AM
Arrives next day
8h 10m • 2 changes
9:52 PM → 12:36 PM
Arrives next day
14h 44m • 2 changes

Departing Friday, October 30, 2026

6:13 AM → 1:26 PM
7h 13m • 2 changes
7:42 AM → 3:28 PM
7h 45m • 2 changes
8:52 AM → 4:29 PM
7h 37m • 2 changes
9:51 AM → 5:21 PM
7h 29m • 2 changes
Show more

Departing Saturday, October 31, 2026

6:13 AM → 1:48 PM
7h 35m • 2 changes
7:42 AM → 3:46 PM
8h 4m • 2 changes
8:52 AM → 4:27 PM
7h 34m • 2 changes
9:53 AM → 5:51 PM
7h 57m • 2 changes
Show more

Departing Sunday, November 1, 2026

9:15 AM → 5:25 PM
8h 10m • 2 changes
11:53 AM → 7:59 PM
8h 5m • 2 changes
12:51 PM → 10:02 PM
9h 11m • 2 changes
3:50 PM → 11:40 PM
7h 49m • 2 changes
Show more

Departing Monday, November 2, 2026

6:13 AM → 1:26 PM
7h 13m • 2 changes
7:42 AM → 3:28 PM
7h 45m • 2 changes
8:52 AM → 4:29 PM
7h 37m • 2 changes
9:51 AM → 5:21 PM
7h 29m • 2 changes
Show more

Departing Tuesday, November 3, 2026

6:13 AM → 1:26 PM
7h 13m • 2 changes
7:42 AM → 3:28 PM
7h 45m • 2 changes
8:52 AM → 4:29 PM
7h 37m • 2 changes
9:51 AM → 5:21 PM
7h 29m • 2 changes
Show more

Departing Wednesday, November 4, 2026

6:13 AM → 1:26 PM
7h 13m • 2 changes
7:42 AM → 3:28 PM
7h 45m • 2 changes
8:52 AM → 4:29 PM
7h 37m • 2 changes
9:51 AM → 5:21 PM
7h 29m • 2 changes
Show more

Frequently asked questions

Want to know about travelling from Boston 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.