The average bus between Slane Castle and Castleknock takes 2h 1m and the fastest bus takes 1h 26m. There is a bus service every few hours from Slane Castle 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 Slane Castle and Castleknock. The earliest departure is at 5:54 AM in the morning, and the last departure from Slane Castle is at 11:53 PM which arrives into Castleknock at 5:57 AM. All services require a transfer at Slane and take an average of 2h 1m. The schedules shown below are for the next available departures.


2h • 2 changes


1h 39m • 2 changes


2h • 2 changes


1h 39m • 2 changes


2h • 2 changes


1h 39m • 2 changes
Want to know about travelling from Slane Castle 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 Slane Castle to Castleknock. However, there are services departing from Slane Castle station and arriving at Castleknock station via Navan. The journey, including transfers, takes approximately 2h 1m.
Slane Castle to Castleknock bus services, operated by Bus Éireann, depart from Slane station.
Slane Castle to Castleknock bus services, operated by Bus Éireann, arrive at Castleknock station.
The distance between Slane Castle and Castleknock is 39.7 km. The road distance is 62 km.
You can take a vehicle from Slane Castle to Castleknock via Slane, Navan, Blanchardstown N3, and Blanchardstown SC in around 2h 4m.