The average bus between Letterkenny and Portmarnock takes 4h 16m and the fastest bus takes 3h 46m. The bus service runs several times per day from Letterkenny to Portmarnock. 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 Portmarnock. 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 Portmarnock at 10:16 PM. All services require a transfer at Airport Zone 16 and take an average of 4h 16m. The schedules shown below are for the next available departures.

4h 20m • 1 change

4h 7m • 1 change

4h 27m • 1 change

4h 7m • 1 change
Want to know about travelling from Letterkenny to Portmarnock? 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 Portmarnock. However, there are services departing from Letterkenny station and arriving at Portmarnock station via Airport Zone 16. The journey, including transfers, takes approximately 4h 16m.
Letterkenny to Portmarnock bus services, operated by Mc Ginley Coach Travel, depart from Letterkenny Bus station.
Letterkenny to Portmarnock bus services, operated by Mc Ginley Coach Travel, arrive at Portmarnock Village station.
The distance between Letterkenny and Portmarnock is 199.2 km. The road distance is 249 km.
You can take a bus from Letterkenny Bus to Portmarnock Village via Airport Zone 16 and Airport Zone 15 in around 4h 32m.