The average train between Swansea and Dumbarton takes 9h 38m and the fastest train takes 7h 53m. The train service runs several times per day from Swansea to Dumbarton. 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 3 hours between Swansea and Dumbarton. The earliest departure is at 3:56 AM at night, and the last departure from Swansea is at 11:35 PM which arrives into Dumbarton at 11:51 AM. All services require a transfer at Crewe and take an average of 9h 38m. The schedules shown below are for the next available departures.




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8h 29m • 4 changesWant to know about travelling from Swansea to Dumbarton? 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 Swansea to Dumbarton. However, there are services departing from Swansea station and arriving at Dumbarton station via Crewe. The journey, including transfers, takes approximately 9h 38m.
Swansea to Dumbarton train services, operated by Transport for Wales, depart from Swansea station.
Swansea to Dumbarton train services, operated by Transport for Wales, arrive at Glasgow Central station.
Book your Swansea to Dumbarton train tickets online with Transport for Wales, Avanti West Coast and 2 other operators.
The distance between Swansea and Dumbarton is 482.5 km. The road distance is 712 km.
You can take a train from Swansea to Risk Street via Crewe, Glasgow Central, Glasgow Central Low Level, Dalmuir, and Swindon Street in around 8h 54m.