Key takeaway
How to use public transport in Ireland — Leap Card, Dublin Bus, Luas, DART, Irish Rail, and long-distance bus services explained.
The Leap Card: get this first
Before you use any public transport in Ireland, get a Leap Card. It's a reloadable smartcard that gives discounted fares on Dublin Bus, Luas, DART, Irish Rail (within Dublin), Bus Éireann, and many other operators. Fares paid with a Leap Card are approximately 20–30% cheaper than cash. You can buy one at Centra/Spar shops, DART and Luas stations, or online. Top up via the TFI app or at many convenience stores.
Dublin Bus
Dublin Bus runs an extensive network across Greater Dublin. Routes are numbered (single digits for city routes, larger numbers for suburban). The TFI Journey Planner app or Google Maps will give you real-time journey information including arrivals. Key bus corridors have high-frequency services every 5–12 minutes.
Luas (tram)
Dublin has two Luas lines: the Red Line running from Saggart/Tallaght through the city centre to Connolly Station, and the Green Line running from Broombridge through St. Stephen's Green to Brides Glen. The lines cross at Marlborough Street. Trams run every 4–10 minutes at peak times.
DART
The DART (Dublin Area Rapid Transit) is an electric rail line running along the coast from Malahide and Howth in the north to Greystones in the south, passing through Connolly, Tara Street, and Pearse stations in the city centre. Fast, frequent, and scenic. Popular for commuters living along the coast.
Irish Rail (intercity)
Irish Rail connects Dublin to Cork, Galway, Limerick, Waterford, Sligo, Belfast, and most other major cities. Book in advance on irishrail.ie for best prices. The Dublin-Cork and Dublin-Belfast routes are particularly frequent. All intercity trains depart from Heuston Station (south/west destinations) or Connolly Station (north/east).
Long-distance buses
Bus Éireann runs intercity routes from Busáras (Dublin city centre). Private operators like FlixBus, GoBus, and Citylink offer competitive prices and often faster journey times on popular routes like Dublin–Galway and Dublin–Cork.
General guidance only. Always verify with official sources — gov.ie, citizensinformation.ie, hse.ie.