The average bus between Letterkenny and Dundrum takes 5h 22m and the fastest bus takes 4h 33m. There is a bus service every few hours from Letterkenny to Dundrum. 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 hourly between Letterkenny and Dundrum. The earliest departure is at 12:00 AM at night, and the last departure from Letterkenny is at 6:30 PM which arrives into Dundrum at 11:53 PM. All services require a transfer at Dublin Busáras and take an average of 5h 22m. The schedules shown below are for the next available departures.

6h 18m • 1 change

4h 48m • 1 change

4h 45m • 1 change

5h 18m • 1 change

6h 18m • 1 change

4h 48m • 1 change

4h 45m • 1 change

5h 18m • 1 change

4h 49m • 1 change

4h 33m • 1 change

5h 16m • 1 change

5h 23m • 1 change

6h 21m • 1 change

4h 55m • 1 change

5h 15m • 1 change

5h 29m • 1 change
Want to know about travelling from Letterkenny to Dundrum? 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 Dundrum. However, there are services departing from Letterkenny station and arriving at Dundrum station via Dublin Busáras. The journey, including transfers, takes approximately 5h 22m.
Letterkenny to Dundrum bus services, operated by Expressway (Bus Éireann), depart from Letterkenny Bus station.
Letterkenny to Dundrum bus services, operated by Expressway (Bus Éireann), arrive at Dublin Busáras station.
The distance between Letterkenny and Dundrum is 208.6 km. The road distance is 258 km.
Expressway (Bus Éireann) operates a bus from Letterkenny Bus to Dublin Busáras every 2 hours. Tickets cost €27–40 and the journey takes 4h 25m.