EI Airline Code, Aer Lingus
EI is the IATA airline code for Aer Lingus, based in Ireland. Its ICAO code is EIN and its radio callsign is "Shamrock".
What airline is EI?
EI is the IATA airline code for Aer Lingus, based in Ireland. Its ICAO code is EIN and its radio callsign is "Shamrock".
The open dataset lists 226 scheduled routes for the carrier, placing it at number 78 among airlines worldwide. You will see EI as the two-character prefix on its flight numbers, for example EI123.
| IATA airline code | EI |
|---|---|
| ICAO airline code | EIN |
| Radio callsign | Shamrock |
| Country | Ireland |
| Alliance | None (unaligned) |
| Scheduled routes | 226 (ranked #78) |
| Most routes at | DUB Dublin |
| Status | Active |
What is the airline code for Aer Lingus?
The IATA airline code for Aer Lingus is EI, and its ICAO code is EIN. The two-character IATA code prefixes the carrier's flight numbers, for example EI123.
IATA airline codes are two characters and can reuse letters over time, so a retired airline's code may later be assigned to another carrier. ICAO codes are three letters and are more stable, which is why flight plans use them.
Where the EI code comes from
EI identifies Aer Lingus, and the letters are generally read as a nod to Eire, the Irish name of Ireland. The airline was a oneworld member until 2007 and now sits inside the IAG group alongside British Airways and Iberia while remaining outside the alliance itself, an unusual halfway position for a European flag carrier.
More on how these identifiers work in what an IATA code is and airline callsigns.
What are Aer Lingus's hub airports?
Aer Lingus (EI) concentrates its network on DUB (Dublin).
Which airport does Aer Lingus serve most?
Aer Lingus (EI) appears on more routes at DUB, Dublin, than at any other airport in the open route dataset.
The airports Aer Lingus appears at most often in that dataset, most routes first:
Routes flown by Aer Lingus
The busiest pairs Aer Lingus (EI) is listed as operating in the open route dataset (codeshare-only listings excluded), with distance and typical flight time:
Route and carrier data comes from the OpenFlights open dataset, regenerated here on . It is a historical snapshot of scheduled connections, not a live schedule, and it includes codeshare listings, so some carriers shown may no longer operate the route or exist. How we build this · Data and sources.
Frequently asked questions
What is the ICAO code for Aer Lingus?
Aer Lingus uses the ICAO airline code EIN and the radio callsign "Shamrock". Flight plans and air traffic control use EIN, while tickets and schedules use EI.
What is the radio callsign for Aer Lingus?
Air traffic control refers to Aer Lingus by the radio callsign "Shamrock".
What country is Aer Lingus based in?
Aer Lingus (EI) is based in Ireland.
What is the abbreviation for Aer Lingus?
The two-character IATA abbreviation for Aer Lingus is EI, and its three-letter ICAO code is EIN.
How many routes does Aer Lingus fly?
The open route dataset lists 226 route entries for Aer Lingus, codeshare listings included, which ranks the carrier number 78 by that count. The route table below shows only the pairs Aer Lingus is listed as operating.
Is Aer Lingus in an airline alliance?
Aer Lingus (EI) is not a member of Star Alliance, oneworld or SkyTeam. It relies on its own network and bilateral partnerships instead.