Aer Lingus is Ireland’s flag carrier and a full-service airline that centers operations on Dublin Airport while also operating services from Shannon and Cork. The carrier focuses on connecting Ireland and the UK with mainland Europe and North America, offering a mix of short-haul and long-haul schedules. On transatlantic routes it competes directly for both leisure and business traffic with a range of fare options and an international route map that includes direct flights to several U.S. cities.

Booking is handled primarily through aerlingus.com and the airline’s mobile app, where customers can buy fares, add extras such as checked baggage and seat selection, and manage reservations. Aer Lingus operates a loyalty program, AerClub, which uses Avios as its points currency and can be used for flight rewards, upgrades and other partner redemptions. Passengers flying to the U.S. from Dublin and Shannon benefit from U.S. preclearance facilities at those airports, which moves immigration and customs processing to Ireland and can shorten arrival formalities in the United States.

Onboard experience varies by route: short-haul flights keep to a basic economy and standard service pattern, while long-haul flights provide a premium cabin with lie-flat seats on many transatlantic services and a full meal and entertainment offering. Like many carriers, Aer Lingus charges separately for certain services that used to be bundled — checked baggage, seat assignments, and priority boarding are often optional, depending on fare type. Customer service and irregular-operation handling earn mixed reviews; during disruptions wait times for phone and social channels can grow, but airport staff and established U.S. preclearance processes generally keep transatlantic connections straightforward.