The average train between Dumbarton and London takes 6h 43m and the fastest train takes 5h 54m. There is a train service every few hours from Dumbarton to London. 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 hourly between Dumbarton and London. The earliest departure is at 6:08 AM in the morning, and the last departure from Dumbarton is at 9:45 PM which arrives into London at 9:47 AM. All services require a transfer, and take on average 6h 43m. The schedules shown below are for the next available departures.

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Want to know about travelling from Dumbarton to London? 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 Dumbarton to London. However, there are services departing from Dumbarton station and arriving at London station via Edinburgh Waverley. The journey, including transfers, takes approximately 6h 43m.
Dumbarton to London train services, operated by ScotRail, depart from Dalreoch station.
Dumbarton to London train services, operated by ScotRail, arrive at King's Cross station.
Book your Dumbarton to London train tickets online with ScotRail and London North Eastern Railway Limited (LNER).
The distance between Dumbarton and London is 573.2 km. The road distance is 721 km.
You can take a train from Dalreoch to King's Cross via Edinburgh Waverley in around 6h 23m.