The average train between Dublin and Monkstown takes 3h 48m and the fastest train takes 3h 22m. There is a train service every few hours from Dublin to Monkstown. 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 Dublin and Monkstown. The earliest departure is at 6:00 AM in the morning, and the last departure from Dublin is at 9:00 PM which arrives into Monkstown at 5:52 AM. All services require a transfer, and take on average 3h 48m. The schedules shown below are for the next available departures.

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Want to know about travelling from Dublin to Monkstown? 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 Dublin to Monkstown. However, there are services departing from Dublin station and arriving at Monkstown station via Cork. The journey, including transfers, takes approximately 3h 48m.
Dublin to Monkstown train services, operated by Iarnród Éireann (Irish Rail), depart from Dublin Heuston station.
Dublin to Monkstown train services, operated by Iarnród Éireann (Irish Rail), arrive at Cork station.
The distance between Dublin and Monkstown is 217 km. The road distance is 282 km.
Iarnród Éireann (Irish Rail) operates a train from Dublin Heuston to Cork hourly. Tickets cost €22–35 and the journey takes 2h 35m.