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IrelandPart of IAG; partners with oneworld carriersAerClubInternational Airlines Serving the US
Aer Lingus is the Irish flag carrier and, for US travellers, principally valuable for one reason: Dublin and Shannon offer US preclearance, so you clear US immigration in Ireland and land in the US as a domestic arrival. Combined with competitive transatlantic fares and onward European connections, it is an efficient way into Europe.
Key Travel Facts & Insights
Detailed answers on the ten things travellers ask most after booking.
One cabin bag up to 10 kg (22 lbs) plus a personal item. Note that Dublin US preclearance means you pass through a second screening point with your cabin bag before boarding a US-bound flight.
Full baggage rulesSaver is non-changeable. Smart and Plus change for a fee plus fare difference.
How to change a flight| Fare | Includes | Watch out for |
|---|---|---|
| Economy Saver | Cabin bag and personal item. | No checked bag, no changes, no seat selection. |
| Economy Smart | Checked bag, seat selection and changes for a fee. | Fare difference applies. |
| Business Class | Lie-flat seat on transatlantic aircraft, two checked bags, lounge access and fast-track security. | European Business is a blocked-middle-seat economy product, not lie-flat. |
Airbus A321neo LR and A330 widebodies on transatlantic routes with A320-family aircraft across Europe.
You clear US immigration and customs at Dublin or Shannon before boarding, then land in the US as a domestic arrival with no further processing. It saves substantial time on arrival but requires arriving 60–90 minutes earlier at Dublin — the most common cause of missed Aer Lingus flights.
Yes on transatlantic A330 and A321neo LR aircraft. European short-haul "Business" is a blocked-middle-seat economy product, which is a very different proposition.
We confirm live fares, seat availability and the exact baggage and change rules attached to your fare before you pay — then stay with you through any change, cancellation or claim.