The average bus between Portmarnock and Killarney takes 5h 42m and the fastest bus takes 4h 58m. The bus service runs several times per day from Portmarnock to Killarney. 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 every 3 hours between Portmarnock and Killarney. The earliest departure is at 7:28 AM in the morning, and the last departure from Portmarnock is at 11:55 PM which arrives into Killarney at 10:00 AM. All services require a transfer at Dublin Airport Zone 15 and take an average of 5h 42m. The schedules shown below are for the next available departures.

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Want to know about travelling from Portmarnock to Killarney? 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 Portmarnock to Killarney. However, there are services departing from Portmarnock station and arriving at Killarney station via Killarney Mission Road. The journey, including transfers, takes approximately 5h 42m.
Portmarnock to Killarney bus services, operated by Go-Ahead Ireland, depart from Dublin Airport Zone 12 station.
Portmarnock to Killarney bus services, operated by Go-Ahead Ireland, arrive at Killarney Mission Road station.
The distance between Portmarnock and Killarney is 272.7 km. The road distance is 339 km.
Flight Link Limited operates a bus from Dublin Airport Zone 12 to Killarney Mission Road every 4 hours, and the journey takes 4h.