The average bus between Greenock and Dumbarton takes 2h 11m and the fastest bus takes 1h 55m. The bus runs at least 2 times per hour from Greenock 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 every 30 minutes between Greenock and Dumbarton. The earliest departure is at 5:19 AM in the morning, and the last departure from Greenock is at 9:55 PM which arrives into Dumbarton at 12:00 AM. All services require a transfer at Waterloo Lane and take an average of 2h 11m. The schedules shown below are for the next available departures.

2h 32m • 1 change
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1h 59m • 1 change
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2h 17m • 1 changeWant to know about travelling from Greenock 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 Greenock to Dumbarton. However, there are services departing from Stance 1 station and arriving at Riverside Lane station via Waterloo Lane station. The journey, including transfers, takes approximately 2h 11m.
Greenock to Dumbarton bus services, operated by McGills Buses, depart from Stance 1 station.
Greenock to Dumbarton bus services, operated by First Greater Glasgow, arrive at Riverside Lane station.
The distance between Greenock and Dumbarton is 11.9 km. The road distance is 32 km.
You can take a bus from Stance 1 to Riverside Lane via Waterloo Lane and St Enoch subway in around 2h 15m.