The average bus between Cavan and Castleknock takes 2h and the fastest bus takes 1h 42m. There is a bus service every few hours from Cavan 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 Cavan and Castleknock. The earliest departure is at 4:47 AM at night, and the last departure from Cavan is at 9:55 PM which arrives into Castleknock at 11:39 PM. All services require a transfer at Blanchardstown N3 and take an average of 2h. The schedules shown below are for the next available departures.

2h 8m • 1 change

2h 6m • 1 change

1h 57m • 1 change

2h 3m • 1 change

2h 8m • 1 change

2h 6m • 1 change

1h 57m • 1 change

2h 3m • 1 change

2h 8m • 1 change

2h 6m • 1 change

1h 57m • 1 change

2h 3m • 1 change
Want to know about travelling from Cavan 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 Cavan to Castleknock. However, there are services departing from Cavan station and arriving at Castleknock station via Blanchardstown N3. The journey, including transfers, takes approximately 2h.
Cavan to Castleknock bus services, operated by Bus Éireann, depart from Cavan Bus Station.
Cavan to Castleknock bus services, operated by Bus Éireann, arrive at Blanchardstown N3 station.
The distance between Cavan and Castleknock is 95.1 km. The road distance is 107 km.
Bus Éireann operates a bus from Cavan Bus Station to Blanchardstown N3 hourly. Tickets cost €11–17 and the journey takes 1h 37m.