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Merthyr Tydfil to Llandeilo trains

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Trip Overview

The average train between Merthyr Tydfil and Llandeilo takes 4h 26m and the fastest train takes 3h 10m. The train service runs several times per day from Merthyr Tydfil to Llandeilo. 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 26m
Duration
100 mi
Distance
£43
Average price
4 times a day
Frequency

Merthyr Tydfil to Llandeilo train times

Trains run 4 times a day between Merthyr Tydfil and Llandeilo. The earliest departure is at 8:09 AM in the morning, and the last departure from Merthyr Tydfil is at 10:37 PM which arrives into Llandeilo at 5:52 AM. All services require a transfer at Cardiff Central and take an average of 4h 26m. The schedules shown below are for the next available departures.

Departing Sunday, November 8, 2026

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    Transport for WalesTransport for WalesTransport for Wales3h 42m • 2 changes
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    Arrives next day

    Transport for WalesGreat Western Railway (GWR)Transport for Wales8h 35m • 2 changes

Departing Monday, November 9, 2026

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    Transport for WalesGreat Western Railway (GWR)Transport for Wales3h 33m • 2 changes
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    Transport for WalesGreat Western Railway (GWR)Transport for Wales3h 42m • 2 changes
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    Transport for WalesTransport for WalesTransport for Wales3h 10m • 2 changes
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    Arrives next day

    Transport for WalesGreat Western Railway (GWR)Transport for Wales7h 15m • 2 changes

Departing Tuesday, November 10, 2026

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    Transport for WalesGreat Western Railway (GWR)Transport for Wales3h 33m • 2 changes
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    Transport for WalesGreat Western Railway (GWR)Transport for Wales3h 42m • 2 changes
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    Transport for WalesTransport for WalesTransport for Wales3h 10m • 2 changes
  •  → 

    Arrives next day

    Transport for WalesGreat Western Railway (GWR)Transport for Wales7h 15m • 2 changes

Departing Wednesday, November 11, 2026

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    Transport for WalesGreat Western Railway (GWR)Transport for Wales3h 33m • 2 changes
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    Transport for WalesGreat Western Railway (GWR)Transport for Wales3h 42m • 2 changes
  •  → 

    Transport for WalesTransport for WalesTransport for Wales3h 10m • 2 changes
  •  → 

    Arrives next day

    Transport for WalesGreat Western Railway (GWR)Transport for Wales7h 15m • 2 changes

Departing Thursday, November 12, 2026

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    Transport for WalesGreat Western Railway (GWR)Transport for Wales3h 33m • 2 changes
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    Transport for WalesGreat Western Railway (GWR)Transport for Wales3h 42m • 2 changes
  •  → 

    Transport for WalesTransport for WalesTransport for Wales3h 10m • 2 changes
  •  → 

    Arrives next day

    Transport for WalesGreat Western Railway (GWR)Transport for Wales7h 15m • 2 changes

Departing Friday, November 13, 2026

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    Transport for WalesGreat Western Railway (GWR)Transport for Wales3h 33m • 2 changes
  •  → 

    Transport for WalesGreat Western Railway (GWR)Transport for Wales3h 42m • 2 changes
  •  → 

    Transport for WalesTransport for WalesTransport for Wales3h 10m • 2 changes
  •  → 

    Arrives next day

    Transport for WalesGreat Western Railway (GWR)Transport for Wales7h 15m • 2 changes

Departing Saturday, November 14, 2026

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    Transport for WalesGreat Western Railway (GWR)Transport for Wales3h 36m • 2 changes
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    Transport for WalesGreat Western Railway (GWR)Transport for Wales3h 43m • 2 changes
  •  → 

    Transport for WalesTransport for WalesTransport for Wales3h 10m • 2 changes

Frequently asked questions

Want to know about travelling from Merthyr Tydfil to Llandeilo? 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 Llandeilo.ExpandLaunch map view
  • Distance: 99.9 mi
  • Duration: 4h 26m

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

You can take a train from Merthyr Tydfil to Llandeilo via Cardiff Central and Swansea in around 4h 11m.

Operators