Flying from Dublin: what you need to know
Dublin Airport punches miles above its weight for a city of 1.5 million people. Ryanair's headquarters operation here, combined with Aer Lingus's transatlantic hub, gives Dublin an outsized route network for both budget European travel and premium North American connections.
The transatlantic market from Dublin is exceptional. Aer Lingus runs nonstops to New York (JFK), Boston, Chicago, Philadelphia, Washington D.C., Los Angeles, San Francisco, Miami, Seattle, and more. The U.S. pre-clearance facility at Dublin means you arrive in America as a domestic passenger — no immigration lines on landing. It's a genuine competitive advantage.
Ryanair turns Dublin into a European fare playground. Nonstops to 100+ European destinations at prices that make the train look expensive. London for €15, Barcelona for €25, Milan for €20 — these aren't stunts, they're regular midweek prices. The catch: bag fees, seat selection charges, and out-of-town airports at some destinations.
Aer Lingus's positioning as a connecting hub is smart for non-Irish travelers too. Connecting from London, Paris, or Amsterdam through Dublin to the U.S. is often €100-200 cheaper than direct transatlantic flights from those cities.
The Canadian market is growing. Aer Lingus and Air Canada fly nonstops to Toronto and Montreal, feeding the large Irish diaspora. These routes go on sale aggressively for St. Patrick's Day travel.
Dublin's one weakness: limited Asian route coverage. No carrier runs DUB to Asia nonstop, so you're connecting through London, Amsterdam, or Istanbul for anything east of the Middle East.
Cheapest windows: January-February for transatlantic, October-November for intra-Europe.