Dalkey was initially served by the Dalkey Atmospheric Railway station located 850 metres north of the current station, which opened on 29 March 1844 and closed on 12 April 1854.

[1] The current station was opened on 10 July 1854 when the Dublin and Wicklow Railway opened their coastal branch from Bray to Kingstown (later Dún Laoghaire) and took over the atmospheric railway.

As of 2023, the peak service pattern is as follows:[3] Northbound Southbound The information office is open between 07:00-10:00 AM, Monday to Friday.

There is no public transport to or from the station, but the nearest bus stop is located three hundred and fifty metres (1,150 ft) from the station, on the other end of the village.

This is served by Dublin Bus routes 7D/7E from Mountjoy Square to Dalkey via Dún Laoghaire, Go-Ahead Ireland routes 59 from Killiney to Dún Laoghaire and 111 from Dalkey to Brides Glen Luas stop in Cherrywood, via Dún Laoghaire and the Aircoach route 703 from Killiney Castle to Dublin Airport.