The average bus between Castlerea and Letterkenny takes 4h 54m and the fastest bus takes 3h 35m. The bus service runs several times per day from Castlerea to Letterkenny. 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 Letterkenny. The earliest departure is at 6:40 AM in the morning, and the last departure from Castlerea is at 4:50 PM which arrives into Letterkenny at 9:00 PM. All services require a transfer, and take on average 4h 54m. The schedules shown below are for the next available departures.

3h 50m • 1 change

3h 35m • 1 change

4h 55m • 1 change

4h 50m • 1 change

3h 50m • 1 change

3h 35m • 1 change

4h 55m • 1 change

4h 50m • 1 change

3h 50m • 1 change

3h 35m • 1 change

4h 55m • 1 change

4h 50m • 1 change

7h • 1 change

3h 35m • 1 change

4h 55m • 1 change

4h 50m • 1 change
Want to know about travelling from Castlerea to Letterkenny? 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 Letterkenny. However, there are services departing from Castlerea station and arriving at Letterkenny station via Sligo Bus Station station. The journey, including transfers, takes approximately 4h 54m.
Castlerea to Letterkenny bus services, operated by TFI Local Link Donegal Sligo Leitrim, depart from Castlerea station.
Castlerea to Letterkenny bus services, operated by TFI Local Link Donegal Sligo Leitrim, arrive at Letterkenny Bus Station.
The distance between Castlerea and Letterkenny is 140.4 km. The road distance is 182 km.
You can take a bus from Castlerea to Letterkenny Bus Station via Sligo Bus Station in around 4h 23m.