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Llanelli to Merthyr Tydfil trains

Find Transport to Merthyr Tydfil

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Trip Overview

The average train between Llanelli and Merthyr Tydfil takes 2h 57m and the fastest train takes 2h 29m. There is a train service every few hours from Llanelli to Merthyr Tydfil. 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 57m
Duration
80 mi
Distance
£38
Average price
Hourly
Frequency

Train

best
  1. Take the train from Llanelli to Cardiff Centraltrain train Haverfordwest - Manchester Piccadilly / ...
  2. Take the train from Cardiff Central to Merthyr Tydfiltrain train Aberdare - Merthyr Tydfil / ...
2h 46m
£27–56

Llanelli to Merthyr Tydfil train times

Trains run hourly between Llanelli and Merthyr Tydfil. The earliest departure is at 6:31 AM in the morning, and the last departure from Llanelli is at 11:10 PM which arrives into Merthyr Tydfil at 6:33 AM. All services require a transfer, and take on average 2h 57m. The schedules shown below are for the next available departures.

Departing Sunday, October 11, 2026

  •  → 

    Great Western Railway (GWR)Transport for Wales2h 34m • 1 change

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    Transport for WalesTransport for Wales2h 30m • 1 change

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    Great Western Railway (GWR)Transport for Wales2h 41m • 1 change

  •  → 

    Transport for WalesTransport for Wales3h 36m • 1 change
  • Show more

Departing Monday, October 12, 2026

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    Transport for WalesTransport for Wales2h 31m • 1 change

  •  → 

    Transport for WalesTransport for Wales2h 42m • 1 change

  •  → 

    Great Western Railway (GWR)Transport for Wales2h 36m • 1 change

  •  → 

    Transport for WalesTransport for Wales2h 36m • 1 change
  • Show more

Departing Tuesday, October 13, 2026

  •  → 

    Transport for WalesTransport for Wales2h 31m • 1 change

  •  → 

    Transport for WalesTransport for Wales2h 42m • 1 change

  •  → 

    Great Western Railway (GWR)Transport for Wales2h 36m • 1 change

  •  → 

    Transport for WalesTransport for Wales2h 36m • 1 change
  • Show more

Frequently asked questions

Want to know about travelling from Llanelli to Merthyr Tydfil? 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 Llanelli to Merthyr Tydfil.ExpandLaunch map view
  • Distance: 80.3 mi
  • Duration: 2h 57m

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

You can take a train from Llanelli to Merthyr Tydfil via Cardiff Central in around 2h 46m.

Operators