The average bus between Portmarnock and Castleknock takes 1h 29m and the fastest bus takes 1h 1m. There is an hourly bus service from Portmarnock 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 Portmarnock and Castleknock. The earliest departure is at 5:29 AM in the morning, and the last departure from Portmarnock is at 10:57 PM which arrives into Castleknock at 11:58 PM. All services require a transfer at Talbot St West and take an average of 1h 29m. The schedules shown below are for the next available departures.

1h 11m • 1 change
1h 10m • 1 change
1h 9m • 1 change
1h 9m • 1 change
1h 24m • 1 change
1h 18m • 1 change
1h 44m • 1 change
1h 29m • 1 change
1h 24m • 1 change
1h 18m • 1 change
1h 44m • 1 change
1h 29m • 1 changeWant to know about travelling from Portmarnock 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 Portmarnock to Castleknock. However, there are services departing from Portmarnock station and arriving at Castleknock station via Talbot St West. The journey, including transfers, takes approximately 1h 29m.
Portmarnock to Castleknock bus services, operated by Dublin Bus, depart from Portmarnock Village station.
Portmarnock to Castleknock bus services, operated by Dublin Bus, arrive at St Brigid's Church station.
The distance between Portmarnock and Castleknock is 16 km. The road distance is 24 km.
You can take a bus from Portmarnock Village to St Brigid's Church via Talbot St West and O'Connell St Upper in around 1h 40m.