The average bus between Greenock and Castle Douglas takes 5h 9m and the fastest bus takes 4h 5m. The bus service runs several times per day from Greenock to Castle Douglas. 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 2 hours between Greenock and Castle Douglas. The earliest departure is at 6:25 AM in the morning, and the last departure from Greenock is at 9:55 PM which arrives into Castle Douglas at 6:31 AM. All services require a transfer at Buchanan Bus Station and take an average of 5h 9m. The schedules shown below are for the next available departures.


4h 28m • 2 changes


5h 14m • 2 changes


4h 15m • 2 changes


4h 29m • 2 changes


4h 35m • 2 changes


4h 50m • 2 changes


4h 25m • 2 changes


4h 55m • 2 changes


4h 35m • 2 changes


4h 50m • 2 changes


4h 25m • 2 changes


4h 55m • 2 changes


4h 35m • 2 changes


4h 50m • 2 changes


4h 25m • 2 changes


4h 55m • 2 changes


4h 35m • 2 changes


4h 50m • 2 changes


4h 25m • 2 changes


4h 55m • 2 changes
Want to know about travelling from Greenock to Castle Douglas? 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 Castle Douglas. However, there are services departing from Greenock station and arriving at Castle Douglas station via Buchanan Bus Station station. The journey, including transfers, takes approximately 5h 9m.
Greenock to Castle Douglas bus services, operated by McGills Buses, depart from Stance 1 station.
Greenock to Castle Douglas bus services, operated by McGills Buses, arrive at Stance 2 station.
The distance between Greenock and Castle Douglas is 123.8 km. The road distance is 205 km.
You can take a bus from Stance 1 to Royal Bank via Buchanan Bus Station, Stance 2, and Stance 5 in around 4h 22m.