The average bus between Dumbarton and Castle Douglas takes 5h 58m and the fastest bus takes 3h 48m. The bus service runs several times per day from Dumbarton to Castle Douglas. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run every 3 hours between Dumbarton and Castle Douglas. The earliest departure is at 12:29 AM at night, and the last departure from Dumbarton is at 8:46 PM which arrives into Castle Douglas at 6:31 AM. All services require a transfer at Buchanan Bus Station and take an average of 5h 58m. The schedules shown below are for the next available departures.


4h 4m • 2 changes


4h 18m • 2 changes


3h 59m • 2 changes
Arrives next day


5h 46m • 2 changes


10h 31m • 2 changes


5h 6m • 2 changes


4h 13m • 2 changes


4h 49m • 2 changes


10h 31m • 2 changes


5h 6m • 2 changes


4h 13m • 2 changes


4h 49m • 2 changes


10h 31m • 2 changes


5h 6m • 2 changes


4h 13m • 2 changes


4h 49m • 2 changes


10h 31m • 2 changes


5h 6m • 2 changes


4h 13m • 2 changes


4h 49m • 2 changes


10h 31m • 2 changes


5h 3m • 2 changes


4h 39m • 2 changes


5h 3m • 2 changes
Want to know about travelling from Dumbarton to Castle Douglas? 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 bus from Dumbarton to Castle Douglas. However, there are services departing from Dumbarton station and arriving at Castle Douglas station via Stance 2. The journey, including transfers, takes approximately 5h 58m.
Dumbarton to Castle Douglas bus services, operated by Scottish Citylink Coaches Ltd, depart from Buchanan Bus Station.
Dumbarton to Castle Douglas bus services, operated by Scottish Citylink Coaches Ltd, arrive at Stance 2 station.
The distance between Dumbarton and Castle Douglas is 118.7 km. The road distance is 184 km.
Stagecoach West Scotland operates a bus from Buchanan Bus Station to Stance 2 hourly. Tickets cost £23–35 and the journey takes 2h 10m.