The average bus between Castleknock and Slane Castle takes 2h 1m and the fastest bus takes 1h 25m. There is a bus service every few hours from Castleknock to Slane Castle. 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 Castleknock and Slane Castle. The earliest departure is at 6:55 AM in the morning, and the last departure from Castleknock is at 11:56 PM which arrives into Slane Castle at 7:55 AM. All services require a transfer at Blanchardstown Centre and take an average of 2h 1m. The schedules shown below are for the next available departures.


1h 34m • 2 changes


1h 42m • 2 changes


1h 36m • 2 changes


1h 36m • 2 changes


1h 26m • 2 changes


1h 29m • 2 changes


1h 34m • 2 changes


1h 42m • 2 changes


1h 26m • 2 changes


1h 29m • 2 changes


1h 34m • 2 changes


1h 42m • 2 changes
Want to know about travelling from Castleknock to Slane Castle? 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 Castleknock to Slane Castle. However, there are services departing from Castleknock station and arriving at Slane Castle station via Blanchardstown Centre. The journey, including transfers, takes approximately 2h 1m.
Castleknock to Slane Castle bus services, operated by Dublin Bus, depart from St Brigid's Church station.
Castleknock to Slane Castle bus services, operated by Dublin Bus, arrive at Navan station.
The distance between Castleknock and Slane Castle is 39.7 km. The road distance is 60 km.
You can take a bus from St Brigid's Church to Slane Castle via Blanchardstown Centre, Blanchardstown N3, Navan, and Slane in around 2h 18m.