The average bus between Letterkenny and Castlerock takes 2h 15m and the fastest bus takes 1h 55m. The bus service runs several times per day from Letterkenny to Castlerock. 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 Castlerock. The earliest departure is at 6:35 AM in the morning, and the last departure from Letterkenny is at 4:55 PM which arrives into Castlerock at 6:50 PM. All services require a transfer at Foyle Street Bus Station and take an average of 2h 15m. The schedules shown below are for the next available departures.

2h 10m • 1 change

2h 5m • 1 change

2h 18m • 1 change

2h • 1 change

2h 10m • 1 change

2h 5m • 1 change

2h 18m • 1 change

2h • 1 change

3h 20m • 1 change

2h 5m • 1 change

4h 17m • 1 change

2h • 1 change

2h 10m • 1 change

2h 5m • 1 change

2h • 1 change

1h 55m • 1 change

2h 10m • 1 change

2h 5m • 1 change

2h 18m • 1 change

2h • 1 change
Want to know about travelling from Letterkenny to Castlerock? 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 Castlerock. However, there are services departing from Letterkenny station and arriving at Castlerock station via Ulsterbus Depot. The journey, including transfers, takes approximately 2h 15m.
Letterkenny to Castlerock bus services, operated by Expressway (Bus Éireann), depart from Letterkenny Bus station.
Letterkenny to Castlerock bus services, operated by Expressway (Bus Éireann), arrive at Coleraine Buscentre station.
The distance between Letterkenny and Castlerock is 64.7 km. The road distance is 85 km.
You can take a bus from Letterkenny Bus to Coleraine via Foyle Street Bus Station and Coleraine Buscentre in around 2h 55m.