The average bus between Swords and Letterkenny takes 4h 11m and the fastest bus takes 3h 15m. There is a bus service every few hours from Swords 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 Swords and Letterkenny. The earliest departure is at 12:07 AM at night, and the last departure from Swords is at 9:07 PM which arrives into Letterkenny at 1:14 AM. All services require a transfer, and take on average 4h 11m. The schedules shown below are for the next available departures.

4h 32m • 1 change

3h 52m • 1 change

4h 2m • 1 change

3h 56m • 1 change

4h 3m • 1 change

4h 17m • 1 change

4h 38m • 1 change

3h 54m • 1 change

4h 3m • 1 change

4h 17m • 1 change

4h 38m • 1 change

3h 54m • 1 change

4h 3m • 1 change

4h 17m • 1 change

4h 38m • 1 change

3h 54m • 1 change
Want to know about travelling from Swords 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 Swords to Letterkenny. However, there are services departing from Swords station and arriving at Letterkenny station via Letterkenny Bus. The journey, including transfers, takes approximately 4h 11m.
Swords to Letterkenny bus services, operated by Dublin Bus, depart from Airport Zone 12 station.
Swords to Letterkenny bus services, operated by Dublin Bus, arrive at Letterkenny Bus station.
The distance between Swords and Letterkenny is 192.8 km. The road distance is 234 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.