The average bus between Dumbarton and Ardrossan takes 3h 19m and the fastest bus takes 2h 42m. The bus runs at least 2 times per hour from Dumbarton to Ardrossan. 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 30 minutes between Dumbarton and Ardrossan. The earliest departure is at 5:45 AM in the morning, and the last departure from Dumbarton is at 10:23 PM which arrives into Ardrossan at 6:09 AM. All services require a transfer at James Watt Street and take an average of 3h 19m. The schedules shown below are for the next available departures.


3h 17m • 2 changes


3h 22m • 2 changes


2h 42m • 2 changes
Arrives next day


7h 46m • 2 changes


3h 17m • 2 changes


3h 9m • 2 changes


3h 1m • 2 changes


2h 56m • 2 changes


3h 17m • 2 changes


3h 9m • 2 changes


3h 1m • 2 changes


2h 56m • 2 changes
Want to know about travelling from Dumbarton to Ardrossan? 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 Ardrossan. However, there are services departing from Dumbarton station and arriving at Ardrossan station via James Watt Street. The journey, including transfers, takes approximately 3h 19m.
Dumbarton to Ardrossan bus services, operated by First Greater Glasgow, depart from Quay Street station.
Dumbarton to Ardrossan bus services, operated by First Greater Glasgow, arrive at Hill Street station.
The distance between Dumbarton and Ardrossan is 37.1 km. The road distance is 91 km.
You can take a bus from Quay Street to Hill Street via James Watt Street, West Campbell Street, and Kilmarnock Bus Station in around 3h 5m.