The average bus between Sligo and Castlebar takes 3h 58m and the fastest bus takes 2h 10m. The bus service runs several times per day from Sligo 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 5 times a day between Sligo and Castlebar. The earliest departure is at 6:55 AM in the morning, and the last departure from Sligo is at 9:12 PM which arrives into Castlebar at 6:10 AM. All services require a transfer, and take on average 3h 58m. The schedules shown below are for the next available departures.

2h 13m • 1 change

2h 12m • 1 change

2h 44m • 1 change
Arrives next day

9h 23m • 1 change

3h 10m • 1 change

3h 25m • 1 change

2h 54m • 1 change

3h 44m • 1 change

3h 45m • 1 change

2h 14m • 1 change

2h 12m • 1 change

2h 37m • 1 change

3h 45m • 1 change

2h 14m • 1 change

2h 12m • 1 change

2h 37m • 1 change

3h 45m • 1 change

2h 14m • 1 change

2h 12m • 1 change

2h 37m • 1 change

3h 45m • 1 change

2h 14m • 1 change

2h 12m • 1 change

2h 37m • 1 change
Want to know about travelling from Sligo 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 Sligo to Castlebar. However, there are services departing from Sligo station and arriving at Castlebar station via Ballina Humbrt. The journey, including transfers, takes approximately 3h 58m.
Sligo to Castlebar bus services, operated by Bus Éireann, depart from Sligo Markievicz station.
Sligo to Castlebar bus services, operated by Bus Éireann, arrive at Castlebar station.
The distance between Sligo and Castlebar is 70.9 km. The road distance is 109 km.
You can take a bus from Sligo Markievicz to Castlebar via Ballina Humbrt in around 3h 3m.