The average bus between Greystones and Castleknock takes 2h 8m and the fastest bus takes 1h 58m. The bus service runs several times per day from Greystones 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 4 hours between Greystones and Castleknock. The earliest departure is at 6:26 AM in the morning, and the last departure from Greystones is at 9:10 AM which arrives into Castleknock at 11:23 AM. All services require a transfer, and take on average 2h 8m. The schedules shown below are for the next available departures.

1h 59m • 1 change

1h 58m • 1 change

2h 17m • 1 change

2h 8m • 1 change

1h 59m • 1 change

1h 58m • 1 change

2h 17m • 1 change

2h 8m • 1 change

1h 59m • 1 change

1h 58m • 1 change

2h 17m • 1 change

2h 8m • 1 change

1h 59m • 1 change

1h 58m • 1 change

2h 17m • 1 change

2h 8m • 1 change
Want to know about travelling from Greystones 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 Greystones to Castleknock. However, there are services departing from Greystones station and arriving at Castleknock station via Leeson Street Lwr. The journey, including transfers, takes approximately 2h 8m.
Greystones to Castleknock bus services, operated by Dublin Bus, depart from Mill Road station.
Greystones to Castleknock bus services, operated by Dublin Bus, arrive at St Brigid's Church station.
The distance between Greystones and Castleknock is 32.6 km. The road distance is 44 km.
You can take a bus from Mill Road to St Brigid's Church via Leeson Street Lwr in around 2h 10m.