The average bus between Dumbarton and Garelochhead takes 1h 8m and the fastest bus takes 52 min. There is a bus service every few hours from Dumbarton to Garelochhead. 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 Dumbarton and Garelochhead. The earliest departure is at 7:53 AM in the morning, and the last departure from Dumbarton is at 6:19 PM which arrives into Garelochhead at 7:16 PM. All services require a transfer, and take on average 1h 8m. The schedules shown below are for the next available departures.

1h 25m • 1 change

1h 18m • 1 change

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1h 9m • 1 change

1h 25m • 1 change

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1h 6m • 1 change

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1h 25m • 1 change

1h 18m • 1 change

1h 6m • 1 change

1h 9m • 1 change
Want to know about travelling from Dumbarton to Garelochhead? 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 Garelochhead. However, there are services departing from Dumbarton station and arriving at Garelochhead station via Helensburgh station station. The journey, including transfers, takes approximately 1h 8m.
Dumbarton to Garelochhead bus services, operated by First Greater Glasgow, depart from Risk Street station.
Dumbarton to Garelochhead bus services, operated by First Greater Glasgow, arrive at Station Road.
The distance between Dumbarton and Garelochhead is 22.2 km. The road distance is 26 km.
You can take a bus from Risk Street to Station Road via Helensburgh station in around 1h 3m.