The average train between Castleknock and Dundalk takes 2h 11m and the fastest train takes 1h 24m. There is a train service every few hours from Castleknock to Dundalk. 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 hourly between Castleknock and Dundalk. The earliest departure is at 6:17 AM in the morning, and the last departure from Castleknock is at 11:38 PM which arrives into Dundalk at 6:49 AM. All services require a transfer, and take on average 2h 11m. The schedules shown below are for the next available departures.

1h 47m • 1 change
1h 37m • 1 change
1h 48m • 1 change
1h 39m • 1 change
1h 24m • 1 change
1h 55m • 1 change
1h 31m • 1 change
1h 47m • 1 change
1h 24m • 1 change
1h 55m • 1 change
1h 31m • 1 change
1h 47m • 1 changeWant to know about travelling from Castleknock to Dundalk? 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 Dundalk. However, there are services departing from Castleknock station and arriving at Dundalk station via Dublin Connolly. The journey, including transfers, takes approximately 2h 11m.
Castleknock to Dundalk train services, operated by Iarnród Éireann (Irish Rail), depart from Castleknock station.
Castleknock to Dundalk train services, operated by Iarnród Éireann (Irish Rail), arrive at Dundalk station.
The distance between Castleknock and Dundalk is 69.8 km. The road distance is 96 km.
You can take a train from Castleknock to Dundalk via Dublin Connolly in around 1h 42m.