The average bus between Castleknock and Rathfarnham takes 1h 14m and the fastest bus takes 49 min. The bus runs at least 2 times per hour from Castleknock to Rathfarnham. 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 Rathfarnham. The earliest departure is at 5:57 AM in the morning, and the last departure from Castleknock is at 10:49 PM which arrives into Rathfarnham at 11:48 PM. All services require a transfer at Leeson Street Lower and take an average of 1h 14m. The schedules shown below are for the next available departures.

1h 16m • 1 change

1h 12m • 1 change

1h 11m • 1 change

1h 12m • 1 change
Want to know about travelling from Castleknock to Rathfarnham? 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 Rathfarnham. However, there are services departing from Castleknock station and arriving at Rathfarnham station via Leeson Street Lower. The journey, including transfers, takes approximately 1h 14m.
Castleknock to Rathfarnham bus services, operated by Dublin Bus, depart from Castleknock station.
Castleknock to Rathfarnham bus services, operated by Dublin Bus, arrive at Crannagh Road station.
The distance between Castleknock and Rathfarnham is 9.6 km. The road distance is 19 km.
You can take a bus from Castleknock to Crannagh Road via Leeson Street Lower and Camden Street Lower in around 1h 21m.