Reservations can be made up to 90 days in advance of the date of travel. This is to ensure your train will be running as normal.
Please note, booking will close 60 minutes before departure from the first station on the route.
E.g. on the Dublin Heuston to Cork Kent route, if you intend to get on at Portlaoise, your ticket must be bought 60 minutes before the train leaves Heuston, not 60 minutes before the train leaves Portlaoise.
This is subject to change without notice.