The average train between Porthmadog and Chepstow takes 7h 50m and the fastest train takes 5h 43m. The train service runs several times per day from Porthmadog to Chepstow. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Trains run every 4 hours between Porthmadog and Chepstow. The earliest departure is at 6:53 AM in the morning, and the last departure from Porthmadog is at 8:56 PM which arrives into Chepstow at 3:04 PM. All services require a transfer at Machynlleth and take an average of 7h 50m. The schedules shown below are for the next available departures.



6h 23m • 3 changes


6h 57m • 3 changes


5h 48m • 3 changes


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6h 57m • 3 changes


5h 48m • 3 changes


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6h 23m • 3 changes


6h 57m • 3 changes


5h 48m • 3 changes


6h 14m • 3 changes


6h 23m • 3 changes


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5h 48m • 3 changes


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6h 22m • 3 changes


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6h 18m • 3 changes


6h 14m • 3 changesWant to know about travelling from Porthmadog to Chepstow? 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.
No, there is no direct train from Porthmadog to Chepstow. However, there are services departing from Porthmadog station and arriving at Chepstow station via Machynlleth. The journey, including transfers, takes approximately 7h 50m.
Porthmadog to Chepstow train services, operated by Transport for Wales, depart from Porthmadog station.
Porthmadog to Chepstow train services, operated by Transport for Wales, arrive at Newport (S Wales) station.
Book your Porthmadog to Chepstow train tickets online with Transport for Wales and Cross Country.
The distance between Porthmadog and Chepstow is 173.7 km. The road distance is 347 km.
You can take a train from Porthmadog to Chepstow via Machynlleth, Shrewsbury, and Newport (S Wales) in around 6h 55m.