The average bus between Castlerea and Birr takes 4h 42m and the fastest bus takes 2h 53m. The bus service runs several times per day from Castlerea to Birr. 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 4 times a day between Castlerea and Birr. The earliest departure is at 9:12 AM in the morning, and the last departure from Castlerea is at 10:05 PM which arrives into Birr at 7:28 AM. All services require a transfer, and take on average 4h 42m. The schedules shown below are for the next available departures.

4h 3m • 1 change

2h 53m • 1 change

2h 53m • 1 change
Arrives next day

9h 23m • 1 change

4h 3m • 1 change

2h 53m • 1 change

2h 53m • 1 change
Arrives next day

9h 23m • 1 change

4h 3m • 1 change

2h 53m • 1 change

2h 53m • 1 change
Arrives next day

9h 23m • 1 change

4h 3m • 1 change

2h 53m • 1 change

2h 53m • 1 change
Arrives next day

9h 23m • 1 change
Want to know about travelling from Castlerea to Birr? 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 Castlerea to Birr. However, there are services departing from Castlerea station and arriving at Birr station via Athlone Station station. The journey, including transfers, takes approximately 4h 42m.
Castlerea to Birr bus services, operated by Bus Éireann, depart from Castlerea station.
Castlerea to Birr bus services, operated by Bus Éireann, arrive at Birr station.
The distance between Castlerea and Birr is 83.7 km. The road distance is 126 km.
You can take a bus from Castlerea to Birr via Athlone Station in around 3h 29m.