The average bus between Navan and Castleknock takes 55 min and the fastest bus takes 40 min. The bus runs at least 3 times per hour from Navan 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 every 20 minutes between Navan and Castleknock. The earliest departure is at 5:35 AM in the morning, and the last departure from Navan is at 7:32 PM which arrives into Castleknock at 8:32 PM. All services require a transfer at Blanchardstown N3 and take an average of 55 min. The schedules shown below are for the next available departures.

1h 4m • 1 change

55 min • 1 change

53 min • 1 change

59 min • 1 change
Want to know about travelling from Navan 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 Navan to Castleknock. However, there are services departing from Navan station and arriving at Castleknock station via Blanchardstown N3. The journey, including transfers, takes approximately 55 min.
Navan to Castleknock bus services, operated by Bus Éireann, depart from Navan station.
Navan to Castleknock bus services, operated by Bus Éireann, arrive at Blanchardstown N3 station.
The distance between Navan and Castleknock is 37.6 km. The road distance is 43 km.
Bus Éireann operates a bus from Navan to Blanchardstown N3 every 20 minutes. Tickets cost €6–9 and the journey takes 38 min.