The average bus between Galway and Castleknock takes 3h 23m and the fastest bus takes 3h 7m. There is a bus service every few hours from Galway 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 Galway and Castleknock. The earliest departure is at 5:15 AM in the morning, and the last departure from Galway is at 9:15 PM which arrives into Castleknock at 6:55 AM. All services require a transfer at Bachelors Walk and take an average of 3h 23m. The schedules shown below are for the next available departures.

3h 24m • 1 change

3h 34m • 1 change

3h 38m • 1 change

3h 42m • 1 change

3h 26m • 1 change

3h 31m • 1 change

3h 31m • 1 change

3h 7m • 1 change

3h 17m • 1 change

3h 19m • 1 change

3h 14m • 1 change

3h 15m • 1 change
Want to know about travelling from Galway 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 Galway to Castleknock. However, there are services departing from Galway station and arriving at Castleknock station via Bachelors Walk. The journey, including transfers, takes approximately 3h 23m.
Galway to Castleknock bus services, operated by Citylink, depart from Galway Coach Stn station.
Galway to Castleknock bus services, operated by Citylink, arrive at Bachelors Walk station.
The distance between Galway and Castleknock is 178.9 km. The road distance is 217 km.
Citylink operates a bus from Galway Coach Stn to Bachelors Walk hourly. Tickets cost €19–27 and the journey takes 2h 30m.