The average train between Belfast and Dalkey takes 3h 2m and the fastest train takes 2h 53m. The train service runs several times per day from Belfast to Dalkey. 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 every 2 hours between Belfast and Dalkey. The earliest departure is at 6:00 AM in the morning, and the last departure from Belfast is at 9:00 PM which arrives into Dalkey at 12:04 AM. All services require a transfer, and take on average 3h 2m. The schedules shown below are for the next available departures.

3h 3m • 1 change

2h 58m • 1 change

2h 54m • 1 change

2h 53m • 1 change

3h 18m • 1 change

3h 18m • 1 change

3h 19m • 1 change

3h 18m • 1 change

3h 36m • 1 change

3h 21m • 1 change

3h 22m • 1 change

3h 21m • 1 change

3h 29m • 1 change

3h 41m • 1 change

3h 26m • 1 change

3h 26m • 1 change

3h 3m • 1 change

2h 58m • 1 change

2h 54m • 1 change

2h 53m • 1 change

3h 3m • 1 change

2h 58m • 1 change

2h 54m • 1 change

2h 53m • 1 change
Want to know about travelling from Belfast to Dalkey? 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 Belfast to Dalkey. However, there are services departing from Belfast station and arriving at Dalkey station via Dublin Connolly. The journey, including transfers, takes approximately 3h 2m.
Belfast to Dalkey train services, operated by Iarnród Éireann (Irish Rail), depart from Belfast Great Central station.
Belfast to Dalkey train services, operated by Iarnród Éireann (Irish Rail), arrive at Dublin Connolly station.
The distance between Belfast and Dalkey is 147.1 km. The road distance is 193 km.
Translink operates a train from Belfast Great Central to Dublin Connolly hourly. Tickets cost €20–28 and the journey takes 2h 13m. Iarnród Éireann (Irish Rail) also services this route every 3 hours.