The average bus between Kilmarnock and Dumbarton takes 2h 3m and the fastest bus takes 1h 28m. There is a bus service every few hours from Kilmarnock 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.
Buses run hourly between Kilmarnock and Dumbarton. The earliest departure is at 6:45 AM in the morning, and the last departure from Kilmarnock is at 11:12 PM which arrives into Dumbarton at 6:47 AM. All services require a transfer, and take on average 2h 3m. The schedules shown below are for the next available departures.

1h 42m • 1 change
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1h 49m • 1 change
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1h 49m • 1 changeWant to know about travelling from Kilmarnock 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 bus from Kilmarnock to Dumbarton. However, there are services departing from Kilmarnock station and arriving at Dumbarton station via Buchanan Bus Station station. The journey, including transfers, takes approximately 2h 3m.
Kilmarnock to Dumbarton bus services, operated by Stagecoach West Scotland, depart from Kilmarnock Bus Station.
Kilmarnock to Dumbarton bus services, operated by Stagecoach West Scotland, arrive at Barloan Toll station.
The distance between Kilmarnock and Dumbarton is 37.3 km. The road distance is 59 km.
You can take a bus from Kilmarnock Bus Station to Barloan Toll via Buchanan Bus Station in around 1h 40m.