The average bus between Northern Ireland and Castlebar takes 6h 17m and the fastest bus takes 5h 55m. The bus service runs several times per day from Northern Ireland 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 every 4 hours between Northern Ireland and Castlebar. The earliest departure is at 3:50 AM at night, and the last departure from Northern Ireland is at 9:50 PM which arrives into Castlebar at 3:45 AM. All services require a transfer at Dublin Airport T2 and take an average of 6h 17m. The schedules shown below are for the next available departures.

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Want to know about travelling from Northern Ireland 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 Northern Ireland to Castlebar. However, there are services departing from Northern Ireland station and arriving at Castlebar station via Dublin Airport T2. The journey, including transfers, takes approximately 6h 17m.
Northern Ireland to Castlebar bus services, operated by Dublin Express, depart from Grand Central Station Stand 11.
Northern Ireland to Castlebar bus services, operated by Dublin Express, arrive at Castlebar station.
The distance between Northern Ireland and Castlebar is 172.3 km. The road distance is 414 km.
You can take a bus from Grand Central Station Stand 11 to Castlebar via Dublin Airport T2 and Dublin Airport Zone 11 in around 7h 15m.