The average train between Blanchardstown and Dún Laoghaire takes 1h 3m and the fastest train takes 50 min. There is an hourly train service from Blanchardstown 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 Blanchardstown and Dún Laoghaire. The earliest departure is at 6:19 AM in the morning, and the last departure from Blanchardstown is at 11:37 PM which arrives into Dún Laoghaire at 6:31 AM. All services require a transfer, and take on average 1h 3m. The schedules shown below are for the next available departures.

54 min • 1 change

1h • 1 change

55 min • 1 change

1h • 1 change

53 min • 1 change

53 min • 1 change

1h 1m • 1 change

56 min • 1 change

53 min • 1 change

53 min • 1 change

1h 1m • 1 change

56 min • 1 change
Want to know about travelling from Blanchardstown 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 Blanchardstown to Dún Laoghaire. However, there are services departing from Blanchardstown station and arriving at Dún Laoghaire station via Dublin Connolly. The journey, including transfers, takes approximately 1h 3m.
Blanchardstown to Dún Laoghaire train services, operated by Iarnród Éireann (Irish Rail), depart from Castleknock station.
Blanchardstown to Dún Laoghaire train services, operated by Iarnród Éireann (Irish Rail), arrive at Dun Laoghaire station.
The distance between Blanchardstown and Dún Laoghaire is 19 km. The road distance is 21 km.
You can take a train from Castleknock to Dun Laoghaire via Dublin Connolly in around 51 min.