The average bus between Killarney and Portlaoise takes 5h 21m and the fastest bus takes 4h 45m. The bus service runs several times per day from Killarney to Portlaoise. 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 5 times a day between Killarney and Portlaoise. The earliest departure is at 7:30 AM in the morning, and the last departure from Killarney is at 2:30 PM which arrives into Portlaoise at 7:15 PM. All services require a transfer, and take on average 5h 21m. The schedules shown below are for the next available departures.

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Want to know about travelling from Killarney to Portlaoise? 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 Killarney to Portlaoise. However, there are services departing from Killarney station and arriving at Portlaoise station via Limerick Arthur's Quay. The journey, including transfers, takes approximately 5h 21m.
Killarney to Portlaoise bus services, operated by Dublin Coach, depart from Killarney Mission Road station.
Killarney to Portlaoise bus services, operated by Dublin Coach, arrive at Portlaoise JFL Avenue station.
The distance between Killarney and Portlaoise is 184.3 km. The road distance is 220 km.
You can take a bus from Killarney Mission Road to Portlaoise JFL Avenue via Limerick Arthur's Quay in around 4h 40m.