The average bus between Belfast and Dublin Port Tunnel takes 2h 40m and the fastest bus takes 2h 36m. There is a bus service every few hours from Belfast to Dublin Port Tunnel. 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 Dublin Port Tunnel. The earliest departure is at 1:50 AM at night, and the last departure from Belfast is at 9:50 PM which arrives into Dublin Port Tunnel at 12:32 AM. All services require a transfer at Burgh Quay and take an average of 2h 40m. The schedules shown below are for the next available departures.

2h 37m • 1 change

2h 38m • 1 change
Arrives next day

2h 47m • 1 change

2h 47m • 1 change

2h 51m • 1 change

2h 46m • 1 change

2h 40m • 1 change

2h 43m • 1 change

2h 39m • 1 change

2h 40m • 1 change

2h 38m • 1 change

2h 44m • 1 change

2h 39m • 1 change

2h 40m • 1 change

2h 38m • 1 change

2h 44m • 1 change

2h 39m • 1 change

2h 40m • 1 change

2h 38m • 1 change
Want to know about travelling from Belfast to Dublin Port Tunnel? 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 Dublin Port Tunnel. However, there are services departing from Belfast station and arriving at Dublin Port Tunnel station via Burgh Quay. The journey, including transfers, takes approximately 2h 40m.
Belfast to Dublin Port Tunnel bus services, operated by Dublin Express, depart from Grand Central Station.
Belfast to Dublin Port Tunnel bus services, operated by Dublin Express, arrive at Burgh Quay station.
The distance between Belfast and Dublin Port Tunnel is 138.9 km. The road distance is 174 km.
Dublin Express operates a bus from Grand Central Station to Burgh Quay hourly. Tickets cost €22–150 and the journey takes 2h 25m.