Dublin Airport (DUB) is one of Europe's busiest hubs and the main base for Ryanair, with a large number of low-cost routes across the continent. Thanks to frequent departures and strong competition between airlines, short-haul flights are often priced aggressively, especially outside peak summer months. For longer trips, Dublin is also a practical transatlantic gateway due to its US Preclearance facilities.
Dublin Airport has two terminals. T1 handles Ryanair and most non-Aer Lingus carriers. T2 is used predominantly by Aer Lingus for both short-haul and transatlantic routes, as well as several other airlines including British Airways and US carriers. T1 and T2 are connected airside but have separate check-in areas and security queues.
Dublin Airport is served by two express bus routes connecting to the city centre: Dublin Express 784 runs to Trinity College and the south side (around 30 minutes off-peak), and Dublin Express 782 runs to Heuston Rail Station via the quays (around 30-40 minutes). There is no rail link to the airport. Taxis and rideshare are available from both terminals.
Dublin operates US Customs and Border Protection pre-clearance for flights to the United States - passengers complete US arrival formalities in Dublin before boarding, landing as a domestic arrival in the US. This facility is in T2. Check-in and security for US pre-clearance flights requires additional time, so confirm your airline's recommended arrival time before travel.
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