The average bus between Arklow and Castleknock takes 1h 54m and the fastest bus takes 1h 33m. There is a bus service every few hours from Arklow to Castleknock. 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 Arklow and Castleknock. The earliest departure is at 3:05 AM at night, and the last departure from Arklow is at 9:43 PM which arrives into Castleknock at 11:29 PM. All services require a transfer at Clare Street and take an average of 1h 54m. The schedules shown below are for the next available departures.

1h 52m • 1 change

1h 52m • 1 change

1h 52m • 1 change

1h 53m • 1 change

1h 33m • 1 change

1h 35m • 1 change

1h 50m • 1 change

1h 47m • 1 change

1h 56m • 1 change

1h 37m • 1 change

2h 1m • 1 change

1h 54m • 1 change

1h 56m • 1 change

1h 37m • 1 change

2h 1m • 1 change

1h 54m • 1 change
Want to know about travelling from Arklow to Castleknock? 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 Arklow to Castleknock. However, there are services departing from Arklow station and arriving at Castleknock station via Clare Street. The journey, including transfers, takes approximately 1h 54m.
Arklow to Castleknock bus services, operated by Expressway (Bus Éireann), depart from Arklow station.
Arklow to Castleknock bus services, operated by Expressway (Bus Éireann), arrive at Morgan Place station.
The distance between Arklow and Castleknock is 65.4 km. The road distance is 79 km.
You can take a bus from Arklow to Morgan Place via Clare Street and National Gallery in around 1h 51m.