The average bus between Castleknock and Leixlip takes 1h 15m and the fastest bus takes 48 min. There is a bus service every few hours from Castleknock to Leixlip. 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 Castleknock and Leixlip. The earliest departure is at 7:42 AM in the morning, and the last departure from Castleknock is at 11:56 PM which arrives into Leixlip at 6:15 AM. All services require a transfer, and take on average 1h 15m. The schedules shown below are for the next available departures.

48 min • 1 change

58 min • 1 change

55 min • 1 change

1h • 1 change

48 min • 1 change

58 min • 1 change

55 min • 1 change

1h • 1 change

48 min • 1 change

58 min • 1 change

55 min • 1 change

1h • 1 change
Want to know about travelling from Castleknock to Leixlip? 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 Leixlip. However, there are services departing from Castleknock station and arriving at Leixlip station via Blanchardstown Ctr. The journey, including transfers, takes approximately 1h 15m.
Castleknock to Leixlip bus services, operated by Dublin Bus, depart from St Brigid's Church station.
Castleknock to Leixlip bus services, operated by Dublin Bus, arrive at Ryevale Lawns station.
The distance between Castleknock and Leixlip is 8.9 km. The road distance is 21 km.
You can take a bus from St Brigid's Church to Ryevale Lawns via Blanchardstown SC in around 1h 24m.