The average bus between Letterkenny and Castlerea takes 3h 58m and the fastest bus takes 3h 43m. The bus service runs several times per day from Letterkenny to Castlerea. 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 Letterkenny and Castlerea. The earliest departure is at 7:55 AM in the morning, and the last departure from Letterkenny is at 4:10 PM which arrives into Castlerea at 8:05 PM. All services require a transfer, and take on average 3h 58m. The schedules shown below are for the next available departures.

3h 43m • 1 change

4h • 1 change

4h 15m • 1 change

3h 55m • 1 change

3h 43m • 1 change

4h • 1 change

4h 15m • 1 change

3h 55m • 1 change

3h 43m • 1 change

4h • 1 change

4h 15m • 1 change

3h 55m • 1 change
Want to know about travelling from Letterkenny to Castlerea? 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 Letterkenny to Castlerea. However, there are services departing from Letterkenny station and arriving at Castlerea station via Sligo Bus Station station. The journey, including transfers, takes approximately 3h 58m.
Letterkenny to Castlerea bus services, operated by Expressway (Bus Éireann), depart from Letterkenny Bus Station.
Letterkenny to Castlerea bus services, operated by Expressway (Bus Éireann), arrive at Castlerea station.
The distance between Letterkenny and Castlerea is 140.4 km. The road distance is 182 km.
You can take a bus from Letterkenny Bus Station to Castlerea via Sligo Bus Station in around 4h 20m.