The average train between Dundalk and Merrion Square takes 1h 15m and the fastest train takes 1h 4m. There is a train service every few hours from Dundalk to Merrion Square. 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 Merrion Square. 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 Merrion Square at 11:34 PM. All services require a transfer, and take on average 1h 15m. The schedules shown below are for the next available departures.

1h 9m • 1 change

1h 8m • 1 change

1h 8m • 1 change

1h 14m • 1 change

1h 33m • 1 change

1h 40m • 1 change

1h 25m • 1 change

1h 15m • 1 change

1h 36m • 1 change

1h 17m • 1 change

1h 17m • 1 change

1h 17m • 1 change

1h 4m • 1 change

1h 13m • 1 change

1h 13m • 1 change

1h 13m • 1 change
Want to know about travelling from Dundalk to Merrion Square? 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 Merrion Square. However, there are services departing from Dundalk station and arriving at Merrion Square station via Dublin Connolly. The journey, including transfers, takes approximately 1h 15m.
Dundalk to Merrion Square train services, operated by Translink, depart from Dundalk station.
Dundalk to Merrion Square train services, operated by Translink, arrive at Dublin Connolly station.
The distance between Dundalk and Merrion Square is 74.2 km. The road distance is 88 km.
Iarnród Éireann (Irish Rail) operates a train from Dundalk to Dublin Connolly hourly. Tickets cost €8–12 and the journey takes 1h. Translink also services this route hourly.