The average bus between Swords and Letterkenny takes 4h 10m and the fastest bus takes 3h 16m. 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 10m. The schedules shown below are for the next available departures.

4h 25m • 1 change

3h 42m • 1 change

3h 32m • 1 change

4h 9m • 1 change

4h 3m • 1 change

4h 40m • 1 change

4h 39m • 1 change

4h 24m • 1 change

4h 4m • 1 change

4h 18m • 1 change

4h 36m • 1 change

3h 52m • 1 change

4h 4m • 1 change

4h 18m • 1 change

4h 36m • 1 change

3h 52m • 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 Station station. The journey, including transfers, takes approximately 4h 10m.
Swords to Letterkenny bus services, operated by Dublin Bus, depart from Dublin 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 Dublin Airport Zone 12 to Letterkenny Bus Station every 2 hours. Tickets cost €26–40 and the journey takes 3h 54m. Mc Ginley Coach Travel also services this route every 4 hours.