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Merthyr Tydfil to Llangennech trains

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Trip Overview

The average train between Merthyr Tydfil and Llangennech takes 5h 28m and the fastest train takes 3h 9m. The train service runs several times per day from Merthyr Tydfil to Llangennech. 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 28m
Duration
85 mi
Distance
£40
Average price
4 times a day
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 / ...
3h 52m
£28–61

Merthyr Tydfil to Llangennech train times

Trains run 4 times a day between Merthyr Tydfil and Llangennech. The earliest departure is at 7:39 AM in the morning, and the last departure from Merthyr Tydfil is at 10:39 PM which arrives into Llangennech at 11:41 AM. All services require a transfer at Cardiff Central and take an average of 5h 28m. The schedules shown below are for the next available departures.

Departing Monday, October 12, 2026

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    Transport for WalesGreat Western Railway (GWR)Transport for Wales3h 11m • 2 changes

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    Transport for WalesTransport for WalesTransport for Wales3h 39m • 2 changes

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    Arrives next day

    Transport for WalesTransport for WalesTransport for Wales7h 42m • 2 changes

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    Arrives next day

    Transport for WalesTransport for WalesTransport for Wales9h 24m • 2 changes

Departing Tuesday, October 13, 2026

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    Transport for WalesTransport for WalesTransport for Wales3h 32m • 2 changes

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    Transport for WalesGreat Western Railway (GWR)Transport for Wales3h 11m • 2 changes

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    Transport for WalesTransport for WalesTransport for Wales3h 39m • 2 changes

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    Arrives next day

    Transport for WalesTransport for WalesTransport for Wales7h 42m • 2 changes
  • Show more

Departing Wednesday, October 14, 2026

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    Transport for WalesTransport for WalesTransport for Wales3h 32m • 2 changes

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    Transport for WalesGreat Western Railway (GWR)Transport for Wales3h 11m • 2 changes

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    Transport for WalesTransport for WalesTransport for Wales3h 39m • 2 changes

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    Arrives next day

    Transport for WalesTransport for WalesTransport for Wales7h 42m • 2 changes
  • Show more

Departing Thursday, October 15, 2026

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    Transport for WalesTransport for WalesTransport for Wales3h 32m • 2 changes

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    Transport for WalesGreat Western Railway (GWR)Transport for Wales3h 11m • 2 changes

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    Transport for WalesTransport for WalesTransport for Wales3h 39m • 2 changes

  •  → 

    Arrives next day

    Transport for WalesTransport for WalesTransport for Wales7h 42m • 2 changes
  • Show more

Departing Friday, October 16, 2026

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    Transport for WalesTransport for WalesTransport for Wales3h 32m • 2 changes

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    Transport for WalesGreat Western Railway (GWR)Transport for Wales3h 11m • 2 changes

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    Transport for WalesTransport for WalesTransport for Wales3h 39m • 2 changes

  •  → 

    Arrives next day

    Transport for WalesTransport for WalesTransport for Wales7h 42m • 2 changes
  • Show more

Departing Saturday, October 17, 2026

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    Transport for WalesTransport for WalesTransport for Wales3h 35m • 2 changes

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    Transport for WalesTransport for WalesTransport for Wales3h 42m • 2 changes

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    Transport for WalesGreat Western Railway (GWR)Transport for Wales3h 9m • 2 changes

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    Arrives next day

    Transport for WalesTransport for WalesTransport for Wales13h 2m • 2 changes

Departing Sunday, October 18, 2026

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    Transport for WalesTransport for WalesTransport for Wales3h 12m • 2 changes

Frequently asked questions

Want to know about travelling from Merthyr Tydfil to Llangennech? 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 Llangennech.ExpandLaunch map view
  • Distance: 84.8 mi
  • Duration: 5h 28m

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

You can take a train from Merthyr Tydfil to Llangennech via Cardiff Central and Llanelli in around 3h 52m.

Operators