Dublin City is a well-served public transport city. It is served by Taxis, Buses, trams, bicycles and rickshaws.
Dublin has a variety of taxi companies serving the city. There are taxi ranks just around the corner from the College on St Stephens Green, so finding one is easy enough.
Currently Dublin does not have a direct rail link to the Airport, however besides getting a taxi, the Aircoach is probably the best option to get you to and from the airport. Alternatively there are several bus routes via Dublin Bus that serve the airport from the city centre. The number 16 bus passes close to the college and comes and goes to Dublin Airport. Please follow links below for more details; https://www.aircoach.ie/ http://www.dublinbus.ie/
All areas of Dublin are served by a bus route. The most economical way to travel on the bus is to get a Leap Card from any newsagent. There are newsagents that sell these on the top of Grafton Street, which is around the corner from the college and one of the main shopping streets in Dublin City. The card covers you on buses, the Luas and the DART. You can download the Dublin Bus app to your phone or follow link for timetable and route planner – http://www.dublinbus.ie/
The Luas is our tram service (“Luas” means speed in Irish) and there are two lines. The Green Line stops right outside the college and will take you north to south, passing Trinity College, O’Connell Street, Dundrum Town Centre shopping and Sandyford on the way. It also connects with the Red Line which takes you from the docklands and the 3Arena in the east to the west of the city.
DART & RAIL
The DART is the Dublin Area Rapid Train and runs along Dublin Bay from Greystones in the south to Howth in the north – it’s a brilliant service. There are trains coming into Dublin from all over the country. Connolly Station (you can get there on the Green Line Luas) will take you north to Belfast or south to Rosslare. Heuston Station will take you south or west to Cork, Limerick or Galway.