Southampton to Llanelli Trains

Southampton to Llanelli trains

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Trip Overview

The average train between Southampton and Llanelli takes 4h 55m and the fastest train takes 4h 6m. There is a train service every few hours from Southampton to Llanelli. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.

4h 55m
Duration: 171 mi
Distance: £91
Average price: Hourly
Frequency

Train

best

Take the train from Southampton Central to Cardiff Centraltrain Portsmouth Harbour - Cardiff Central / ...
Take the train from Cardiff Central to Llanellitrain Bristol Temple Meads - Haverfordwest / ...

4h 18m

£75–148

Southampton to Llanelli train times

Trains run hourly between Southampton and Llanelli. The earliest departure is at 6:47 AM in the morning, and the last departure from Southampton is at 9:11 PM which arrives into Llanelli at 7:13 AM. All services require a transfer, and take on average 4h 55m. The schedules shown below are for the next available departures.

Departing Monday, August 10, 2026

9:11 AM → 2:00 PM
4h 49m • 1 change
10:11 AM → 2:23 PM
4h 11m • 1 change
11:10 AM → 4:00 PM
4h 49m • 1 change
12:11 PM → 4:52 PM
4h 41m • 1 change
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Departing Tuesday, August 11, 2026

6:47 AM → 11:20 AM
4h 32m • 1 change
8:10 AM → 12:57 PM
4h 47m • 1 change
9:11 AM → 2:00 PM
4h 49m • 1 change
10:11 AM → 2:23 PM
4h 11m • 1 change
Show more

Departing Wednesday, August 12, 2026

6:47 AM → 11:20 AM
4h 32m • 1 change
8:10 AM → 12:57 PM
4h 47m • 1 change
9:11 AM → 2:00 PM
4h 49m • 1 change
10:11 AM → 2:23 PM
4h 11m • 1 change
Show more

Departing Thursday, August 13, 2026

6:47 AM → 11:20 AM
4h 32m • 1 change
8:10 AM → 12:57 PM
4h 47m • 1 change
9:11 AM → 2:00 PM
4h 49m • 1 change
10:11 AM → 2:23 PM
4h 11m • 1 change
Show more

Frequently asked questions

Want to know about travelling from Southampton to Llanelli? 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.