The average bus between Castleknock and Belfast takes 3h 23m and the fastest bus takes 2h 58m. There is a bus service every few hours from Castleknock to Belfast. 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 Belfast. The earliest departure is at 8:03 AM in the morning, and the last departure from Castleknock is at 11:36 PM which arrives into Belfast at 3:20 AM. All services require a transfer at Parnell Square East and take an average of 3h 23m. The schedules shown below are for the next available departures.

3h 20m • 1 change
3h 20m • 1 change
3h 20m • 1 change
3h 29m • 1 change
3h 16m • 1 change
3h 30m • 1 change
3h 32m • 1 change
3h 24m • 1 change
3h 16m • 1 change
3h 30m • 1 change
3h 32m • 1 change
3h 24m • 1 change
3h 16m • 1 change
3h 30m • 1 change
3h 32m • 1 change
3h 24m • 1 changeWant to know about travelling from Castleknock to Belfast? 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 Belfast. However, there are services departing from Castleknock station and arriving at Belfast station via Belfast Glengall. The journey, including transfers, takes approximately 3h 23m.
Castleknock to Belfast bus services, operated by Dublin Bus, depart from The Gresham Hotel station.
Castleknock to Belfast bus services, operated by Dublin Bus, arrive at Belfast Glengall station.
The distance between Castleknock and Belfast is 139.1 km. The road distance is 178 km.
Aircoach operates a bus from The Gresham Hotel to Belfast Glengall hourly. Tickets cost £13–18 and the journey takes 2h 30m.