The average bus between Roscommon and Castlebar takes 2h 34m and the fastest bus takes 1h 58m. The bus service runs several times per day from Roscommon to Castlebar. 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 Roscommon and Castlebar. The earliest departure is at 6:52 AM in the morning, and the last departure from Roscommon is at 6:22 PM which arrives into Castlebar at 9:00 PM. All services require a transfer, and take on average 2h 34m. The schedules shown below are for the next available departures.

2h 7m • 1 change

2h 38m • 1 change

2h 55m • 1 change

2h 37m • 1 change

2h 7m • 1 change

2h 38m • 1 change

2h 55m • 1 change

2h 37m • 1 change

2h 7m • 1 change

2h 38m • 1 change

2h 55m • 1 change

2h 37m • 1 change

2h 7m • 1 change

2h 38m • 1 change

2h 55m • 1 change

2h 37m • 1 change
Want to know about travelling from Roscommon to Castlebar? 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 Roscommon to Castlebar. However, there are services departing from Roscommon station and arriving at Castlebar station via Claremorris. The journey, including transfers, takes approximately 2h 34m.
Roscommon to Castlebar bus services, operated by Bus Éireann, depart from Roscommon station.
Roscommon to Castlebar bus services, operated by Bus Éireann, arrive at Castlebar station.
The distance between Roscommon and Castlebar is 77 km. The road distance is 95 km.
You can take a bus from Roscommon to Castlebar via Claremorris in around 2h 26m.