The average bus between Castleknock and Howth Head takes 1h 30m and the fastest bus takes 1h. The bus runs at least 2 times per hour from Castleknock to Howth Head. 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 30 minutes between Castleknock and Howth Head. The earliest departure is at 6:39 AM in the morning, and the last departure from Castleknock is at 11:47 PM which arrives into Howth Head at 12:55 AM. All services require a transfer at Parnell Square East and take an average of 1h 30m. The schedules shown below are for the next available departures.

1h 30m • 1 change

1h • 1 change

1h • 1 change
Arrives next day

1h 5m • 1 change

1h 20m • 1 change

1h 34m • 1 change

1h 30m • 1 change

1h 19m • 1 change

1h 20m • 1 change

1h 34m • 1 change

1h 30m • 1 change

1h 19m • 1 change
Want to know about travelling from Castleknock to Howth Head? 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 Howth Head. However, there are services departing from Castleknock station and arriving at Howth Head station via Parnell Square East. The journey, including transfers, takes approximately 1h 30m.
Castleknock to Howth Head bus services, operated by Dublin Bus, depart from Castleknock station.
Castleknock to Howth Head bus services, operated by Dublin Bus, arrive at Main Street Howth station.
The distance between Castleknock and Howth Head is 19.3 km. The road distance is 26 km.
You can take a bus from Castleknock to Howth Head via Parnell Square East, Busáras, and Main Street Howth in around 1h 53m.