The average train between Castlebar and Dún Laoghaire takes 3h 54m and the fastest train takes 3h 50m. The train service runs several times per day from Castlebar 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 5 times a day between Castlebar and Dún Laoghaire. The earliest departure is at 5:28 AM in the morning, and the last departure from Castlebar is at 6:43 PM which arrives into Dún Laoghaire at 10:38 PM. All services require a transfer at Dublin Heuston and take an average of 3h 54m. The schedules shown below are for the next available departures.


3h 55m • 2 changes


3h 51m • 2 changes


3h 53m • 2 changes


3h 54m • 2 changes


3h 57m • 2 changes


3h 57m • 2 changes


4h 2m • 2 changes


3h 54m • 2 changes


3h 50m • 2 changes


4h • 2 changes


3h 58m • 2 changes


3h 52m • 2 changes


3h 55m • 2 changes


3h 51m • 2 changes


3h 53m • 2 changes


3h 54m • 2 changes


3h 55m • 2 changes


3h 51m • 2 changes


3h 53m • 2 changes


3h 54m • 2 changes


3h 55m • 2 changes


3h 51m • 2 changes


3h 53m • 2 changes


3h 54m • 2 changes
Want to know about travelling from Castlebar 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 Castlebar to Dún Laoghaire. However, there are services departing from Castlebar station and arriving at Dún Laoghaire station via Dublin Heuston. The journey, including transfers, takes approximately 3h 54m.
Castlebar to Dún Laoghaire train services, operated by Iarnród Éireann (Irish Rail), depart from Castlebar station.
Castlebar to Dún Laoghaire train services, operated by Iarnród Éireann (Irish Rail), arrive at Dublin Heuston station.
The distance between Castlebar and Dún Laoghaire is 217.9 km. The road distance is 258 km.
Iarnród Éireann (Irish Rail) operates a train from Castlebar to Dublin Heuston every 3 hours. Tickets cost €21–30 and the journey takes 3h 6m.