The average bus between Dublin and Castletown takes 3h 43m and the fastest bus takes 2h 20m. The bus service runs several times per day from Dublin to Castletown. 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 4 hours between Dublin and Castletown. The earliest departure is at 12:15 AM at night, and the last departure from Dublin is at 8:00 PM which arrives into Castletown at 11:34 PM. All services require a transfer, and take on average 3h 43m. The schedules shown below are for the next available departures.

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2h 55m • 1 changeWant to know about travelling from Dublin to Castletown? 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 Dublin to Castletown. However, there are services departing from George's Quay station and arriving at Castletown station via Portlaoise JFL Ave station. The journey, including transfers, takes approximately 3h 43m.
Dublin to Castletown bus services, operated by J.J.Kavanagh & Sons, depart from George's Quay station.
Dublin to Castletown bus services, operated by TFI Local Link Laois Offaly, arrive at Castletown station.
The distance between Dublin and Castletown is 91.9 km. The road distance is 101 km.
You can take a bus from George's Quay to Castletown via Portlaoise JFL Ave in around 3h 4m.