Dublin Airport

Terminal 1: Ryanair (home), easyJet, Vueling, KLM, Lufthansa, Air France, TAP, SAS, ITA Airways. Terminal 2: Aer Lingus (home) + Aer Lingus Regional + all transatlantic (United, American, Delta, JetBlue, Air Canada) + BA + Emirates + Qatar + Etihad + Turkish + Iberia + Finnair. T2 is the only terminal with US Customs and Border Protection pre-clearance.

Dublin is one of only TWO airports in Europe (the other is Shannon) with a US Customs and Border Protection facility. You clear US immigration + customs in Ireland BEFORE boarding. On arrival in the USA you land as a domestic passenger — no immigration queue, no customs inspection. Allow 90 minutes for the full sequence (bag-drop + security + CBP). At peak times (06:00-09:00 + 16:00-19:00) CBP can hit 60+ min.

Airlink Express bus 747/757 — €8, 30 min direct to Bus Áras + Connolly + O'Connell Street. Best tourist option. Every 10-15 min, 04:45-23:45. Aircoach €9 to St Stephen's Green (35 min). Dublin Bus 16 €2.60 (60 min, cheapest, slow). Taxi €25-€40 (25-45 min). Free Now / Uber Taxi same metered fare. Dublin has NO train link — Metro Link planned for ~2035.

Free 10-minute walk via internal walkway (mostly indoors). Free shuttle bus also runs every 5-7 min. Allow 15-30 min including bag re-tag if you're changing terminal AND airline. Most travellers don't need to switch — Aer Lingus is T2 (with Aer Lingus Regional), Ryanair is T1.

Short-haul European: 90 min. Long-haul (non-US): 2 hours. US-bound with pre-clearance: 2.5-3 hours (bag-drop + security + CBP all before boarding). Aer Lingus + AerClub Concierge / Platinum get expedited CBP + security. Fast Track €7-€10. DAA publishes live security wait times at dublinairport.com.

Dublin is one of the only major European capitals without a direct airport rail link. The Metro Link subway project has been proposed since the early 2000s — current estimate is 2035 for completion. Until then: Airlink Express bus is the standard fast option (€8, 30 min to city centre). When Metro Link does open it will run from the airport to Charlemont via the city centre.