OU Airline Code, Croatia Airlines
OU is the IATA airline code for Croatia Airlines, based in Croatia. Its ICAO code is CTN and its radio callsign is "Croatia".
What airline is OU?
OU is the IATA airline code for Croatia Airlines, based in Croatia. Its ICAO code is CTN and its radio callsign is "Croatia".
The open dataset lists 112 scheduled routes for the carrier, placing it at number 128 among airlines worldwide. You will see OU as the two-character prefix on its flight numbers, for example OU123.
| IATA airline code | OU |
|---|---|
| ICAO airline code | CTN |
| Radio callsign | Croatia |
| Country | Croatia |
| Scheduled routes | 112 (ranked #128) |
| Most routes at | ZAG Velika Gorica |
| Status | Active |
What is the airline code for Croatia Airlines?
The IATA airline code for Croatia Airlines is OU, and its ICAO code is CTN. The two-character IATA code prefixes the carrier's flight numbers, for example OU123.
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.
Which airport does Croatia Airlines serve most?
Croatia Airlines (OU) appears on more routes at ZAG, Velika Gorica, than at any other airport in the open route dataset.
The airports Croatia Airlines appears at most often in that dataset, most routes first:
Routes flown by Croatia Airlines
The busiest pairs Croatia Airlines (OU) 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 Croatia Airlines?
Croatia Airlines uses the ICAO airline code CTN and the radio callsign "Croatia". Flight plans and air traffic control use CTN, while tickets and schedules use OU.
What is the radio callsign for Croatia Airlines?
Air traffic control refers to Croatia Airlines by the radio callsign "Croatia".
What country is Croatia Airlines based in?
Croatia Airlines (OU) is based in Croatia.
What is the abbreviation for Croatia Airlines?
The two-character IATA abbreviation for Croatia Airlines is OU, and its three-letter ICAO code is CTN.
How many routes does Croatia Airlines fly?
The open route dataset lists 112 route entries for Croatia Airlines, codeshare listings included, which ranks the carrier number 128 by that count. The route table below shows only the pairs Croatia Airlines is listed as operating.