Carmarthen to Boston Trains

Trip Overview

The average train between Carmarthen and Boston takes 9h 45m and the fastest train takes 7h 50m. The train service runs several times per day from Carmarthen to Boston. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.

9h 45m
Duration: 298 mi
Distance: £154
Average price: Every 4 hours
Frequency

Train

best

Take the train from Carmarthen to Newport (S Wales)train
Take the train from Newport (S Wales) to Nottinghamtrain
Take the train from Nottingham to Bostontrain

8h 27m

£120–207

Carmarthen to Boston train times

Trains run every 4 hours between Carmarthen and Boston. The earliest departure is at 6:01 AM in the morning, and the last departure from Carmarthen is at 9:15 PM which arrives into Boston at 11:18 AM. All services require a transfer at Newport (S Wales) and take an average of 9h 45m. The schedules shown below are for the next available departures.

Departing Friday, October 16, 2026

11:27 AM → 7:24 PM
7h 57m • 2 changes
11:59 AM → 8:18 PM
8h 18m • 2 changes
2:20 PM → 10:20 PM
8h • 2 changes
4:19 PM → 7:01 AM
Arrives next day
14h 42m • 2 changes
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Departing Saturday, October 17, 2026

6:04 AM → 2:19 PM
8h 15m • 2 changes
7:24 AM → 3:18 PM
7h 54m • 2 changes
7:57 AM → 4:22 PM
8h 25m • 2 changes
9:30 AM → 5:20 PM
7h 50m • 2 changes
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Departing Sunday, October 18, 2026

11:25 AM → 7:20 PM
7h 55m • 2 changes
12:31 PM → 9:19 PM
8h 47m • 2 changes
2:28 PM → 7:01 AM
Arrives next day
16h 33m • 2 changes
9:15 PM → 11:18 AM
Arrives next day
14h 3m • 2 changes

Departing Monday, October 19, 2026

6:01 AM → 2:18 PM
8h 17m • 2 changes
7:57 AM → 4:22 PM
8h 25m • 2 changes
9:21 AM → 5:20 PM
7h 59m • 2 changes
9:58 AM → 6:26 PM
8h 28m • 2 changes
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Departing Tuesday, October 20, 2026

6:01 AM → 2:18 PM
8h 17m • 2 changes
7:57 AM → 4:22 PM
8h 25m • 2 changes
9:21 AM → 5:20 PM
7h 59m • 2 changes
9:58 AM → 6:26 PM
8h 28m • 2 changes
Show more

Departing Wednesday, October 21, 2026

6:01 AM → 2:18 PM
8h 17m • 2 changes
7:57 AM → 4:22 PM
8h 25m • 2 changes
9:21 AM → 5:20 PM
7h 59m • 2 changes
9:58 AM → 6:26 PM
8h 28m • 2 changes
Show more

Departing Thursday, October 22, 2026

6:01 AM → 2:18 PM
8h 17m • 2 changes
7:57 AM → 4:22 PM
8h 25m • 2 changes
9:21 AM → 5:20 PM
7h 59m • 2 changes
9:58 AM → 6:26 PM
8h 28m • 2 changes

Frequently asked questions

Want to know about travelling from Carmarthen to Boston? 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.