The following information is supplied from the website Dublin Guesthouse Guide (www.dublinguesthouseguide.com)

Airlink is a direct bus service from Dublin Airport to the City Centre, Central Bus Station (Busaras), Connolly Rail Station and Heuston Rail Station. When you arrive at Dublin Airport exit the main arrivals Hall, cross the road and your Airlink Express Bus will be on your left hand side.

Check out the route HERE