The average train between Castleknock and Sligo takes 3h 13m and the fastest train takes 2h 59m. The train service runs several times per day from Castleknock to Sligo. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Trains run every 4 hours between Castleknock and Sligo. The earliest departure is at 6:52 AM in the morning, and the last departure from Castleknock is at 7:37 PM which arrives into Sligo at 10:37 PM. All services require a transfer, and take on average 3h 13m. The schedules shown below are for the next available departures.

3h 13m • 1 change

3h 11m • 1 change

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3h 14m • 1 change
Want to know about travelling from Castleknock to Sligo? 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 train from Castleknock to Sligo. However, there are services departing from Castleknock station and arriving at Sligo station via Sligo. The journey, including transfers, takes approximately 3h 13m.
Castleknock to Sligo train services, operated by Iarnród Éireann (Irish Rail), depart from Maynooth station.
Castleknock to Sligo train services, operated by Iarnród Éireann (Irish Rail), arrive at Sligo station.
The distance between Castleknock and Sligo is 170.5 km. The road distance is 207 km.
Iarnród Éireann (Irish Rail) operates a train from Maynooth to Sligo hourly. Tickets cost €16–24 and the journey takes 2h 39m.