Rome2Rio uses cookies to help personalize content and show you personalised ads. By proceeding, you accept the use of cookies in accordance with our privacy policy.You may at any time.
Belfast is the capital city and principal port of Northern Ireland, standing on the banks of the River Lagan and connected to the open sea through Belfast Lough and the North Channel. It is second to Dublin as the largest city on the island of Ireland with a population in 2021 of 345,418 and a metro area population of 634,600.