Starting out from Dublin Airport, the M1 Motorway is well signposted for Belfast; this is a toll road and there is one Toll Plaza approximately 31 km from Dublin Airport. Continue on this Motorway signposted for Belfast. Just after passing the City of Newry the road becomes a dual carriageway (A1) and Motorway regulations fall away. At the Sprucefield roundabout (approximately 137 km from Dublin Airport) the A1 joins the M1 motorway (signposted The North, Belfast). Once within the Greater Belfast area, the signs will display as City Centre. At Grosvenor Road Junction (approximately 152 km) leave the motorway and follow signs City Centre onto the B38.
From Belfast Airport
Both Belfast Airports sign-post the city centre very clearly, and if you need any further directions, you can use google maps to plan a route to the SSE Arena