The average bus between Castlebar and Belfast takes 6h 18m and the fastest bus takes 5h 45m. The bus service runs several times per day from Castlebar to Belfast. 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 4 hours between Castlebar and Belfast. The earliest departure is at 12:45 AM at night, and the last departure from Castlebar is at 6:50 PM which arrives into Belfast at 1:30 AM. All services require a transfer, and take on average 6h 18m. The schedules shown below are for the next available departures.

6h 50m • 1 change

6h 35m • 1 change

6h 35m • 1 change

5h 45m • 1 change

6h 50m • 1 change

6h 35m • 1 change

6h 35m • 1 change

5h 45m • 1 change

6h 50m • 1 change

6h 35m • 1 change

6h 35m • 1 change

5h 45m • 1 change

6h 50m • 1 change

6h 35m • 1 change

6h 35m • 1 change

5h 45m • 1 change

6h 50m • 1 change

6h 35m • 1 change

6h 35m • 1 change

5h 45m • 1 change

6h 50m • 1 change

6h 35m • 1 change

6h 35m • 1 change

5h 45m • 1 change
Want to know about travelling from Castlebar to Belfast? 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 Castlebar to Belfast. However, there are services departing from Castlebar station and arriving at Belfast station via Dublin Airport Zone 15. The journey, including transfers, takes approximately 6h 18m.
Castlebar to Belfast bus services, operated by Citylink, depart from Castlebar station.
Castlebar to Belfast bus services, operated by Citylink, arrive at Grand Central Station Stand 11.
The distance between Castlebar and Belfast is 234.1 km. The road distance is 413 km.
You can take a bus from Castlebar to Grand Central Station Stand 11 via Dublin Airport T1 in around 6h 27m.