The average bus between Cairnryan and Dumbarton takes 3h 38m and the fastest bus takes 3h 33m. The bus service runs several times per day from Cairnryan 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 3 times a day between Cairnryan and Dumbarton. The earliest departure is at 10:15 AM in the morning, and the last departure from Cairnryan is at 6:15 PM which arrives into Dumbarton at 9:49 PM. All services require a transfer at Glasgow Buchanan and take an average of 3h 38m. The schedules shown below are for the next available departures.


3h 45m • 2 changes


3h 38m • 2 changes


3h 33m • 2 changes


3h 35m • 2 changes


3h 46m • 2 changes


3h 34m • 2 changes
Want to know about travelling from Cairnryan 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 Cairnryan to Dumbarton. However, there are services departing from Cairnryan station and arriving at Dumbarton station via Glasgow Buchanan. The journey, including transfers, takes approximately 3h 38m.
Cairnryan to Dumbarton bus services, operated by Translink, depart from Cairnryan Stena Terminal station.
Cairnryan to Dumbarton bus services, operated by Translink, arrive at Risk Street station.
The distance between Cairnryan and Dumbarton is 111.7 km. The road distance is 161 km.
You can take a bus from Cairnryan Stena Terminal to Risk Street via Glasgow Buchanan, Buchanan Bus Station, West Campbell Street, and York Street in around 3h 32m.