The average bus between Donegal and Castlefin takes 3h 35m and the fastest bus takes 52 min. The bus service runs several times per day from Donegal to Castlefin. 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 4 times a day between Donegal and Castlefin. The earliest departure is at 8:42 AM in the morning, and the last departure from Donegal is at 8:12 PM which arrives into Castlefin at 6:49 AM. All services require a transfer, and take on average 3h 35m. The schedules shown below are for the next available departures.

52 min • 1 change

1h 36m • 1 change

1h 57m • 1 change

2h 39m • 1 change

52 min • 1 change

1h 36m • 1 change

1h 57m • 1 change

2h 39m • 1 change

52 min • 1 change

1h 36m • 1 change

1h 57m • 1 change

2h 39m • 1 change
Want to know about travelling from Donegal to Castlefin? 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 Donegal to Castlefin. However, there are services departing from Donegal station and arriving at Castlefin station via Ballybofey. The journey, including transfers, takes approximately 3h 35m.
Donegal to Castlefin bus services, operated by Expressway (Bus Éireann), depart from Donegal station.
Donegal to Castlefin bus services, operated by Expressway (Bus Éireann), arrive at Castlefin station.
The distance between Donegal and Castlefin is 37 km. The road distance is 40 km.
You can take a bus from Donegal to Castlefin via Ballybofey in around 1h 43m.