Merthyr Tydfil to Carmarthen train times
Trains run hourly between Merthyr Tydfil and Carmarthen. 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 Carmarthen at 7:42 AM. All services require a transfer, and take on average 3h 21m. The schedules shown below are for the next available departures.
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2h 53m • 1 change
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3h 41m • 1 change
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2h 58m • 1 change
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3h 7m • 1 change
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Departing Sunday, August 16, 2026
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2h 48m • 1 change
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2h 52m • 1 change
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3h 6m • 1 change
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2h 57m • 1 change
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Departing Monday, August 17, 2026
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2h 48m • 1 change
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2h 52m • 1 change
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3h 6m • 1 change
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2h 57m • 1 change
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Departing Tuesday, August 18, 2026
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2h 48m • 1 change
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2h 52m • 1 change
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3h 6m • 1 change
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2h 57m • 1 change
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