The average bus between Belfast and Portmarnock takes 2h 58m and the fastest bus takes 2h 37m. There is a bus service every few hours from Belfast to Portmarnock. 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 hourly between Belfast and Portmarnock. The earliest departure is at 1:50 AM at night, and the last departure from Belfast is at 7:50 PM which arrives into Portmarnock at 10:47 PM. All services require a transfer at Dublin Airport Terminal 1 Zone 1 and take an average of 2h 58m. The schedules shown below are for the next available departures.

2h 37m • 1 change

3h 4m • 1 change

2h 54m • 1 change

2h 55m • 1 change

4h 32m • 1 change

3h 2m • 1 change

2h 59m • 1 change

2h 54m • 1 change

3h 30m • 1 change

3h 2m • 1 change

3h • 1 change

3h 3m • 1 change

3h 30m • 1 change

3h 2m • 1 change

3h • 1 change

3h 3m • 1 change
Want to know about travelling from Belfast to Portmarnock? 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 Belfast to Portmarnock. However, there are services departing from Belfast station and arriving at Portmarnock station via Dublin Airport Terminal 1 Zone 1. The journey, including transfers, takes approximately 2h 58m.
Belfast to Portmarnock bus services, operated by Dublin Express, depart from Grand Central Station.
Belfast to Portmarnock bus services, operated by Dublin Express, arrive at Portmarnock Village station.
The distance between Belfast and Portmarnock is 131.4 km. The road distance is 181 km.
You can take a bus from Grand Central Station to Portmarnock Village via Dublin Airport Terminal 1 Zone 1 and Dublin Airport Zone 15 in around 3h 4m.