The average bus between Castleknock and Roscommon takes 5h 13m and the fastest bus takes 3h 15m. The bus service runs several times per day from Castleknock to Roscommon. 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 Castleknock and Roscommon. The earliest departure is at 12:01 AM at night, and the last departure from Castleknock is at 11:58 PM which arrives into Roscommon at 11:52 AM. All services require a transfer at Blanchardstown SC and take an average of 5h 13m. The schedules shown below are for the next available departures.



4h 14m • 3 changes



3h 44m • 3 changes



4h 15m • 3 changes



4h 32m • 3 changes



4h 14m • 3 changes



3h 44m • 3 changes



4h 15m • 3 changes



4h 32m • 3 changes



4h 14m • 3 changes



3h 44m • 3 changes



4h 15m • 3 changes



4h 32m • 3 changes



3h 50m • 3 changes



3h 47m • 3 changes



4h 28m • 3 changes



4h 33m • 3 changes



11h 50m • 3 changes



3h 15m • 3 changes



3h 41m • 3 changes



3h 18m • 3 changes
Want to know about travelling from Castleknock to Roscommon? 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 Roscommon. However, there are services departing from Castleknock station and arriving at Roscommon station via Longford Station station. The journey, including transfers, takes approximately 5h 13m.
Castleknock to Roscommon bus services, operated by Dublin Bus, depart from Liffey Valley SC station.
Castleknock to Roscommon bus services, operated by Dublin Bus, arrive at Roscommon station.
The distance between Castleknock and Roscommon is 124.3 km. The road distance is 157 km.
You can take a bus from St Brigid's Church to Roscommon via Blanchardstown SC, Liffey Valley SC, and Longford Station in around 5h 2m.