The average bus between Trim and Castlebar takes 5h 5m and the fastest bus takes 4h 52m. The bus service runs several times per day from Trim 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 Trim and Castlebar. The earliest departure is at 6:02 AM in the morning, and the last departure from Trim is at 10:03 PM which arrives into Castlebar at 3:45 AM. All services require a transfer at O'Connell St Upper and take an average of 5h 5m. The schedules shown below are for the next available departures.

4h 56m • 1 change

4h 54m • 1 change

5h 24m • 1 change

4h 54m • 1 change

4h 56m • 1 change

4h 54m • 1 change

5h 24m • 1 change

4h 54m • 1 change

4h 56m • 1 change

4h 54m • 1 change

5h 24m • 1 change

4h 54m • 1 change

4h 56m • 1 change

4h 54m • 1 change

5h 24m • 1 change

4h 54m • 1 change

4h 56m • 1 change

4h 54m • 1 change

5h 24m • 1 change

4h 54m • 1 change

4h 58m • 1 change

4h 54m • 1 change

5h 19m • 1 change

4h 53m • 1 change
Want to know about travelling from Trim 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 Trim to Castlebar. However, there are services departing from Trim station and arriving at Castlebar station via O'Connell St Upper. The journey, including transfers, takes approximately 5h 5m.
Trim to Castlebar bus services, operated by Bus Éireann, depart from Trim station.
Trim to Castlebar bus services, operated by Bus Éireann, arrive at Castlebar station.
The distance between Trim and Castlebar is 168.3 km. The road distance is 289 km.
You can take a bus from Trim to Castlebar via O'Connell St Upper and Crampton Quay in around 5h 40m.