Aer Lingus (EI) airline code, fares and API for travel agents
- IATA EI
- ICAO EIN
- Hybrid
Search Aer Lingus (EI) fares
Aer Lingus airline codes
- IATA code
- EI
- ICAO code
- EIN
- Main hub
- Dublin (DUB)
- Alliance
- Not in a global alliance
- Airline type
- Hybrid
- Country
- Ireland
About Aer Lingus
Aer Lingus is the Irish flag carrier, based in Dublin. Its business has two sides: short-haul flights from Ireland to Britain and continental Europe, and transatlantic flights to North America. Passengers on its US flights from Dublin and Shannon can clear US immigration before departure, which is one reason the airline is used for connections between Europe and the United States. Aer Lingus is owned by International Airlines Group (IAG), yet it is not a member of oneworld or any other alliance. It sells Economy throughout and Business class on transatlantic services.
On IATA.co you can search live Aer Lingus fares in the booking portal or through the flights API. Aer Lingus fares appear in your search results whenever our flight suppliers offer them for your route and dates, and bookings are paid from your prepaid balance. Fare rules are shown before you confirm.
Aer Lingus airline codes explained
Aer Lingus uses the two-letter IATA airline code EI and the three-letter ICAO code EIN. The IATA code EI is the one shown on tickets, fare displays and booking screens, while the ICAO code EIN is used in air traffic control and flight planning.
Aer Lingus is a hybrid carrier, based in Ireland, operating mainly from Dublin (DUB). It is not part of a global airline alliance.
Booking Aer Lingus fares as a travel agent
Travel agents book Aer Lingus fares on IATA.co without their own IATA accreditation. Activate an agency account, top up a prepaid balance, then search live EI fares in the booking portal: the price, baggage and fare rules are shown with each offer before you confirm, and the amount is deducted from your balance. Aer Lingus results appear whenever our flight suppliers return them for your route and dates, so what you can book follows live supplier content rather than a direct airline deal.
Search Aer Lingus (EI) through the flights API
Developers and agencies can run the same Aer Lingus search from their own site, app or back office through the IATA.co flights API. Filter a search by the carrier code EI and read the fares back as JSON, then book from the same prepaid balance. See the flights API and the API docs for the full reference.
GET /api/v1/flights/search?origin=DUB&destination=DXB&date=2026-12-14&carrier=EI
Host: iata.co
Authorization: Bearer YOUR_API_KEY
HTTP/1.1 200 OK
{
"carrier": "EI",
"flights": [
{ "airline": "EI", "from": "DUB", "to": "DXB", "price": 148.20 }
]
}Example request and response. Carrier codes filter the search; the full reference is unlocked with your API key.
Aer Lingus at a glance
- Flag carrier of Ireland, owned by IAG
- Not a member of any global alliance
- Main hub at Dublin (DUB)
- European short-haul plus transatlantic routes
Aer Lingus (EI) questions
Aer Lingus' two-letter IATA airline code is EI, and its three-letter ICAO code is EIN. The IATA code is the one you see on tickets, timetables and booking screens.
Aer Lingus' ICAO code is EIN. ICAO codes are three letters and are used in air traffic control and flight planning, while the two-letter IATA code EI is used in ticketing and reservations.
Yes. On IATA.co you book Aer Lingus fares through the platform from a prepaid balance, so you do not need your own IATA accreditation. Aer Lingus fares appear in your results whenever our flight suppliers offer them for your route and dates.
It depends on what our flight suppliers return. Whenever Aer Lingus content — including NDC fares — is offered by a connected supplier for your route and dates, it appears in your EI search results and can be booked from your balance or through the flights API.
Aer Lingus fares appear in your search results whenever our flight suppliers offer them for your route and dates. Search in the booking portal or through the flights API.
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