AY Airline Code, Finnair
AY is the IATA airline code for Finnair, based in Finland. Its ICAO code is FIN and its radio callsign is "Finnair".
What airline is AY?
AY is the IATA airline code for Finnair, based in Finland. Its ICAO code is FIN and its radio callsign is "Finnair".
The open dataset lists 328 scheduled routes for the carrier, placing it at number 49 among airlines worldwide. You will see AY as the two-character prefix on its flight numbers, for example AY123.
| IATA airline code | AY |
|---|---|
| ICAO airline code | FIN |
| Radio callsign | Finnair |
| Country | Finland |
| Alliance | oneworld |
| Scheduled routes | 328 (ranked #49) |
| Most routes at | LHR London |
| Status | Active |
What is the airline code for Finnair?
The IATA airline code for Finnair is AY, and its ICAO code is FIN. The two-character IATA code prefixes the carrier's flight numbers, for example AY123.
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 AY code comes from
AY is a fossil of Finnair's original name: the airline was founded in 1923 as Aero O/Y, the O/Y being the Finnish abbreviation for a limited company. The code preserves that first identity a century later. Finnair joined oneworld in 1999 and built its niche on connecting Europe and Asia over Helsinki.
More on how these identifiers work in what an IATA code is and airline callsigns.
What are Finnair's hub airports?
Finnair (AY) concentrates its network on HEL (Helsinki).
Which airport does Finnair serve most?
Finnair (AY) appears on more routes at LHR, London, than at any other airport in the open route dataset.
The airports Finnair appears at most often in that dataset, most routes first:
Routes flown by Finnair
The busiest pairs Finnair (AY) 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 Finnair?
Finnair uses the ICAO airline code FIN and the radio callsign "Finnair". Flight plans and air traffic control use FIN, while tickets and schedules use AY.
What is the radio callsign for Finnair?
Air traffic control refers to Finnair by the radio callsign "Finnair".
What country is Finnair based in?
Finnair (AY) is based in Finland.
What is the abbreviation for Finnair?
The two-character IATA abbreviation for Finnair is AY, and its three-letter ICAO code is FIN.
How many routes does Finnair fly?
The open route dataset lists 328 route entries for Finnair, codeshare listings included, which ranks the carrier number 49 by that count. The route table below shows only the pairs Finnair is listed as operating.
Is Finnair in an airline alliance?
Finnair (AY) is a member of oneworld, the global airline alliance founded in 1999. Membership means shared lounges, frequent flyer recognition and connecting networks across the member carriers.