The average train between Belfast and Dublin Port takes 2h 27m and the fastest train takes 2h 20m. There is a train service every few hours from Belfast to Dublin Port. 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 Belfast and Dublin Port. 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 Dublin Port at 11:23 PM. All services require a transfer at Dublin Connolly and take an average of 2h 27m. The schedules shown below are for the next available departures.

2h 25m • 1 change

2h 24m • 1 change

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2h 28m • 1 change

2h 41m • 1 change

2h 34m • 1 change

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2h 41m • 1 change

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2h 25m • 1 change

2h 25m • 1 change

2h 41m • 1 change

2h 34m • 1 change

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2h 25m • 1 change
Want to know about travelling from Belfast to Dublin Port? 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 Dublin Port. However, there are services departing from Belfast station and arriving at Dublin Port station via Dublin Connolly. The journey, including transfers, takes approximately 2h 27m.
Belfast to Dublin Port train services, operated by Translink, depart from Belfast Grand Central station.
Belfast to Dublin Port train services, operated by Translink, arrive at Dublin Connolly station.
The distance between Belfast and Dublin Port is 139.8 km. The road distance is 181 km.
Iarnród Éireann (Irish Rail) operates a train from Belfast Grand Central to Dublin Connolly hourly. Tickets cost €15–22 and the journey takes 2h 13m. Translink also services this route hourly.