The average bus between Letterkenny and Tallaght takes 4h 8m and the fastest bus takes 3h 35m. The bus service runs several times per day from Letterkenny to Tallaght. 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 Tallaght. The earliest departure is at 8:30 AM in the morning, and the last departure from Letterkenny is at 6:30 PM which arrives into Tallaght at 10:35 PM. All services require a transfer, and take on average 4h 8m. The schedules shown below are for the next available departures.

4h 5m • 1 change

3h 50m • 1 change

3h 35m • 1 change

3h 50m • 1 change
Want to know about travelling from Letterkenny to Tallaght? 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 Tallaght. However, there are services departing from Letterkenny station and arriving at Tallaght station via Airport Zone 16. The journey, including transfers, takes approximately 4h 8m.
Letterkenny to Tallaght bus services, operated by Mc Ginley Coach Travel, depart from Letterkenny Bus station.
Letterkenny to Tallaght bus services, operated by Mc Ginley Coach Travel, arrive at Airport Zone 16 station.
The distance between Letterkenny and Tallaght is 205.2 km. The road distance is 248 km.
Mc Ginley Coach Travel operates a bus from Letterkenny Bus to Airport Zone 16 every 4 hours. Tickets cost €24–30 and the journey takes 3h 20m.