The average bus between Dublin Port and Letterkenny takes 4h 13m and the fastest bus takes 3h 19m. There is a bus service every few hours from Dublin Port 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 hourly between Dublin Port and Letterkenny. The earliest departure is at 6:51 AM in the morning, and the last departure from Dublin Port is at 11:51 PM which arrives into Letterkenny at 4:11 AM. All services require a transfer at Terminal 1 Zone 2 and take an average of 4h 13m. The schedules shown below are for the next available departures.

4h 7m • 1 change
Arrives next day

4h 13m • 1 change
Arrives next day

4h 20m • 1 change

4h 28m • 1 change

4h 33m • 1 change

3h 54m • 1 change

4h 33m • 1 change

4h 28m • 1 change

4h 33m • 1 change

3h 54m • 1 change

4h 33m • 1 change

4h 28m • 1 change

4h 33m • 1 change

3h 54m • 1 change

4h 33m • 1 change

4h 28m • 1 change

4h 33m • 1 change

3h 34m • 1 change

4h 33m • 1 change
Want to know about travelling from Dublin Port 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 Dublin Port to Letterkenny. However, there are services departing from Dublin Port station and arriving at Letterkenny station via Letterkenny Bus. The journey, including transfers, takes approximately 4h 13m.
Dublin Port to Letterkenny bus services, operated by Aircoach, depart from Airport Zone 12 station.
Dublin Port to Letterkenny bus services, operated by Aircoach, arrive at Letterkenny Bus station.
The distance between Dublin Port and Letterkenny is 203.4 km. The road distance is 241 km.
Expressway (Bus Éireann) operates a bus from Airport Zone 12 to Letterkenny Bus every 2 hours. Tickets cost €26–40 and the journey takes 3h 54m. Mc Ginley Coach Travel also services this route every 4 hours.