The average bus between Shannon Airport and Castlebar takes 4h 46m and the fastest bus takes 3h 23m. The bus service runs several times per day from Shannon Airport 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 Shannon Airport and Castlebar. The earliest departure is at 7:55 AM in the morning, and the last departure from Shannon Airport is at 8:55 PM which arrives into Castlebar at 7:50 AM. All services require a transfer, and take on average 4h 46m. The schedules shown below are for the next available departures.

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Want to know about travelling from Shannon Airport 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 Shannon Airport to Castlebar. However, there are services departing from Shannon Airport station and arriving at Castlebar station via ATU Galway. The journey, including transfers, takes approximately 4h 46m.
Shannon Airport to Castlebar bus services, operated by Expressway (Bus Éireann), depart from Shannon Airport station.
Shannon Airport to Castlebar bus services, operated by Expressway (Bus Éireann), arrive at Castlebar station.
The distance between Shannon Airport and Castlebar is 131.9 km. The road distance is 176 km.
You can take a bus from Shannon Airport to Castlebar via ATU Galway in around 4h 18m.