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Merthyr Tydfil to Llanelli trains

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Trip Overview

The average train between Merthyr Tydfil and Llanelli takes 2h 59m and the fastest train takes 2h 20m. There is a train service every few hours from Merthyr Tydfil 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.

2h 59m
Duration
80 mi
Distance
£38
Average price
Hourly
Frequency

Train

best
  1. Take the train from Merthyr Tydfil to Cardiff Centraltrain train Merthyr Tydfil - Aberdare / ...
  2. Take the train from Cardiff Central to Llanellitrain train Bristol Temple Meads - Haverfordwest / ...
2h 43m
£27–58

Merthyr Tydfil to Llanelli train times

Trains run hourly between Merthyr Tydfil and Llanelli. The earliest departure is at 6:09 AM in the morning, and the last departure from Merthyr Tydfil is at 10:37 PM which arrives into Llanelli at 7:13 AM. All services require a transfer, and take on average 2h 59m. The schedules shown below are for the next available departures.

Departing Tuesday, October 13, 2026

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    Arrives next day

    Transport for WalesTransport for Wales8h 36m • 1 change

Departing Wednesday, October 14, 2026

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    Transport for WalesTransport for Wales2h 25m • 1 change

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    Transport for WalesTransport for Wales2h 21m • 1 change

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    Transport for WalesTransport for Wales2h 41m • 1 change

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    Transport for WalesTransport for Wales2h 25m • 1 change
  • Show more

Departing Thursday, October 15, 2026

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    Transport for WalesTransport for Wales2h 25m • 1 change

  •  → 

    Transport for WalesTransport for Wales2h 21m • 1 change

  •  → 

    Transport for WalesTransport for Wales2h 41m • 1 change

  •  → 

    Transport for WalesTransport for Wales2h 25m • 1 change
  • Show more

Departing Friday, October 16, 2026

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    Transport for WalesTransport for Wales2h 25m • 1 change

  •  → 

    Transport for WalesTransport for Wales2h 21m • 1 change

  •  → 

    Transport for WalesTransport for Wales2h 41m • 1 change

  •  → 

    Transport for WalesTransport for Wales2h 25m • 1 change
  • Show more

Frequently asked questions

Want to know about travelling from Merthyr Tydfil 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.

Map of how to get from Merthyr Tydfil to Llanelli.ExpandLaunch map view
  • Distance: 80.3 mi
  • Duration: 2h 59m

What companies run services between Merthyr Tydfil, Wales and Llanelli, Wales?

You can take a train from Merthyr Tydfil to Llanelli via Cardiff Central in around 2h 43m.

Operators