Ireland is one of the closest European countries to North America, which makes it a popular first stop in Europe. Dublin is the main gateway, and Shannon on the west coast also handles transatlantic flights. For travelers from the US, Dublin and Shannon offer US preclearance, so you clear US immigration before your flight home.
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Aer Lingus is Ireland's flag carrier, and Ryanair, based in Dublin, is a major low-cost airline for flights within Europe. Several major US carriers also serve Ireland.
Fares to Ireland are typically lower from November to March, apart from the Christmas period and St. Patrick's Day week in mid-March. Summer is peak season.
Dublin Airport (DUB) is Ireland's busiest airport and main international gateway. Shannon (SNN) and Cork (ORK) are other options.
Winter and early spring usually offer lower fares, except around Christmas and St. Patrick's Day. Summer is typically the most expensive.
At Dublin and Shannon airports, US-bound passengers clear US immigration and customs before departure, so they arrive in the US without going through those checks again.
