The average bus between Dublin and Belfast Port takes 3h 6m and the fastest bus takes 2h 55m. The bus service runs several times per day from Dublin to Belfast 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.
Buses run 4 times a day between Dublin and Belfast Port. The earliest departure is at 2:50 AM at night, and the last departure from Dublin is at 3:50 PM which arrives into Belfast Port at 6:46 PM. All services require a transfer at Belfast Glengall and take an average of 3h 6m. The schedules shown below are for the next available departures.

2h 55m • 1 change
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3h 28m • 1 change
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3h 7m • 1 change
3h 7m • 1 change
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2h 55m • 1 change
3h 7m • 1 change
3h 7m • 1 changeWant to know about travelling from Dublin to Belfast 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 bus from Dublin to Belfast Port. However, there are services departing from Dublin station and arriving at Belfast Port station via Belfast Glengall. The journey, including transfers, takes approximately 3h 6m.
Dublin to Belfast Port bus services, operated by Aircoach, depart from The Gresham Hotel station.
Dublin to Belfast Port bus services, operated by Aircoach, arrive at Belfast Glengall station.
The distance between Dublin and Belfast Port is 146 km. The road distance is 175 km.
Aircoach operates a bus from The Gresham Hotel to Belfast Glengall hourly. Tickets cost £13–18 and the journey takes 2h 30m.