The average train between Dundalk and Dún Laoghaire takes 1h 37m and the fastest train takes 1h 20m. There is a train service every few hours from Dundalk to Dún Laoghaire. 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 Dundalk and Dún Laoghaire. The earliest departure is at 5:30 AM in the morning, and the last departure from Dundalk is at 10:16 PM which arrives into Dún Laoghaire at 11:55 PM. All services require a transfer, and take on average 1h 37m. The schedules shown below are for the next available departures.

1h 57m • 1 change

1h 38m • 1 change

1h 38m • 1 change

1h 38m • 1 change

1h 20m • 1 change

1h 34m • 1 change

1h 34m • 1 change

1h 34m • 1 change

1h 54m • 1 change

2h 3m • 1 change

1h 46m • 1 change

1h 36m • 1 change

1h 54m • 1 change

2h 3m • 1 change

1h 46m • 1 change

1h 36m • 1 change
Want to know about travelling from Dundalk to Dún Laoghaire? 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 Dundalk to Dún Laoghaire. However, there are services departing from Dundalk station and arriving at Dún Laoghaire station via Dublin Connolly. The journey, including transfers, takes approximately 1h 37m.
Dundalk to Dún Laoghaire train services, operated by Iarnród Éireann (Irish Rail), depart from Dundalk station.
Dundalk to Dún Laoghaire train services, operated by Iarnród Éireann (Irish Rail), arrive at Dun Laoghaire station.
The distance between Dundalk and Dún Laoghaire is 80.7 km. The road distance is 97 km.
You can take a train from Dundalk to Dun Laoghaire via Dublin Connolly in around 1h 28m.