Cheap Aer Lingus
Flights
Compare fares for Ireland’s flag carrier, check baggage and seating details, and learn the best time to book to keep your Aer Lingus fare low.
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or request an offerAbout Aer Lingus
Aer Lingus is Ireland’s flag carrier, founded in 1936 and based in Dublin. Now part of International Airlines Group (IAG), which also owns British Airways and Iberia, Aer Lingus operates an extensive European short-haul network alongside transatlantic routes connecting Ireland to North America.
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Aer Lingus Route Network
Aer Lingus connects Dublin, Cork, and other Irish airports to destinations across the UK and Europe, plus a growing transatlantic network to the United States and Canada.
Primary Hub
Dublin Airport (DUB)
Dublin Airport (DUB) is Aer Lingus’s primary hub, serving as the connecting point between its European short-haul routes and transatlantic long-haul flights.
Alliance & Partner Airlines
Aer Lingus is not a full oneworld member, but it’s owned by IAG and participates in the transatlantic joint venture alongside American Airlines, British Airways, Iberia, and Finnair — meaning coordinated schedules and codeshares on many US–Europe routes, plus a partnership with American Airlines for mileage earning and redemption.
Baggage, Seating & Onboard Amenities
A quick reference before you pack — always confirm exact allowances on your fare rules at booking, since they vary by route and cabin.
Carry-On & Personal Item
Economy fares generally include one carry-on bag plus a personal item, with slightly more generous allowances on Business Class tickets.
Checked Baggage
Checked bag allowance depends on fare class — the lowest “Basic” style fares often exclude a checked bag by default, while mid- and top-tier fares typically include one or more bags on transatlantic routes.
Excess Baggage Fees
Overweight, oversized, or extra bags typically incur a per-bag fee charged at check-in or online in advance — pre-paying online is usually cheaper than paying at the airport.
Seat Selection & Cabin Classes
Aer Lingus offers Economy and Business cabins on transatlantic flights, with Economy seat selection sometimes chargeable on basic fares and included on higher fare tiers.
How to Find the Cheapest Aer Lingus Fares
Four habits that consistently lower what you pay.
Book in the Sweet-Spot Window
For most Aer Lingus routes, fares tend to be most competitive when booked several weeks to a few months ahead of departure, rather than at the last minute or extremely far out.
Fly Midweek and Off-Peak
Tuesday, Wednesday, and Saturday departures are usually cheaper than Friday or Sunday, and red-eye or early-morning flights often undercut peak daytime departures.
Set Fare Alerts
Track your route and let price-drop notifications do the watching, instead of checking manually every day.
Price-Tracking Tip
Compare a fixed date range over a week or two before deciding — single-day price checks can be misleading.
Use Flexible Date Search
Searching a date range instead of one fixed day often surfaces Aegean Airlines fares that are noticeably lower just one or two days earlier or later.
Check-In & Day-of-Travel
Online Check-In
Online and mobile check-in generally opens 24–48 hours before departure, letting you select or confirm your seat and download your boarding pass in advance.
Airport Arrival Times
Arrive with enough buffer for check-in, bag drop, and security — this matters more on international Aegean Airlines routes than short domestic hops.
Domestic vs. International Cutoff
International check-in and bag-drop counters usually close earlier relative to departure than domestic ones, so double-check your specific route’s cutoff.
Frequently Asked Questions
Aer Lingus's IATA code is EI, with ICAO code EIN — a nod to its Irish name, Aer Lingus Éireann.
Dublin Airport (DUB) is Aer Lingus's principal hub, connecting its European network with transatlantic flights to North America.
Aer Lingus isn't a full oneworld member, but it's owned by IAG (parent of British Airways and Iberia) and takes part in the transatlantic joint venture with American Airlines, British Airways, Iberia, and Finnair, plus a direct partnership with American Airlines.
Standard fares typically include one carry-on bag plus a personal item, though exact size and weight limits should be confirmed for your specific fare.
It depends on your fare tier — entry-level fares commonly exclude a checked bag by default, so add one during booking if needed, while higher fares often include a bag as standard.
Yes, though on the lowest "Basic" fares seat selection may carry an extra fee, while it's typically included with higher fare tiers.
Yes — thanks to the partnership between the two airlines, AAdvantage members can generally earn and redeem miles on Aer Lingus flights, and eligible elite members receive reciprocal perks like priority boarding.
Booking several weeks to a few months ahead tends to offer the best fares, with shoulder-season travel (spring and autumn) typically cheaper than the busy summer transatlantic season.
Change and cancellation policies vary by fare type — review the specific fare rules at checkout, since Basic fares are usually more restrictive than flexible fare tiers.
Online check-in typically opens 24 hours before departure. For transatlantic flights from Dublin, note that many routes offer US preclearance, letting you clear US immigration before you fly.
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