The average bus between Greenock and Dumbarton Castle takes 1h 44m and the fastest bus takes 1h 29m. The bus service runs several times per day from Greenock to Dumbarton Castle. 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 3 hours between Greenock and Dumbarton Castle. The earliest departure is at 8:10 AM in the morning, and the last departure from Greenock is at 7:00 PM which arrives into Dumbarton Castle at 9:06 PM. All services require a transfer at Bus Station and take an average of 1h 44m. The schedules shown below are for the next available departures.


1h 29m • 2 changes

1h 36m • 2 changes

1h 49m • 2 changes

2h 7m • 2 changes

1h 37m • 2 changes

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1h 32m • 2 changes

1h 36m • 2 changes

1h 37m • 2 changes

1h 35m • 2 changes

1h 32m • 2 changes

1h 36m • 2 changes

1h 48m • 2 changes

1h 49m • 2 changes

1h 30m • 2 changes

1h 35m • 2 changes

1h 37m • 2 changes

1h 35m • 2 changes

1h 32m • 2 changes

1h 36m • 2 changesWant to know about travelling from Greenock to Dumbarton Castle? 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 Castle. However, there are services departing from Greenock station and arriving at Dumbarton Castle station via Bus Station station. The journey, including transfers, takes approximately 1h 44m.
Greenock to Dumbarton Castle bus services, operated by McGills Buses, depart from Stance 1 station.
Greenock to Dumbarton Castle bus services, operated by McGills Buses, arrive at Leven Street station.
The distance between Greenock and Dumbarton Castle is 12.3 km. The road distance is 50 km.
You can take a bus from Stance 1 to Leven Street via Bus Station and Clydebank station in around 1h 59m.