OK Airline Code, Czech Airlines
OK is the IATA airline code for Czech Airlines, based in the Czech Republic. Its ICAO code is CSA and its radio callsign is "Csa-Lines".
What airline is OK?
OK is the IATA airline code for Czech Airlines, based in the Czech Republic. Its ICAO code is CSA and its radio callsign is "Csa-Lines".
The open dataset lists 111 scheduled routes for the carrier, placing it at number 129 among airlines worldwide. You will see OK as the two-character prefix on its flight numbers, for example OK123.
| IATA airline code | OK |
|---|---|
| ICAO airline code | CSA |
| Radio callsign | Csa-Lines |
| Country | Czech Republic |
| Scheduled routes | 111 (ranked #129) |
| Most routes at | PRG Prague |
| Status | Active |
What is the airline code for Czech Airlines?
The IATA airline code for Czech Airlines is OK, and its ICAO code is CSA. The two-character IATA code prefixes the carrier's flight numbers, for example OK123.
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 Czech Airlines serve most?
Czech Airlines (OK) appears on more routes at PRG, Prague, than at any other airport in the open route dataset.
The airports Czech Airlines appears at most often in that dataset, most routes first:
Routes flown by Czech Airlines
The busiest pairs Czech Airlines (OK) 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 Czech Airlines?
Czech Airlines uses the ICAO airline code CSA and the radio callsign "Csa-Lines". Flight plans and air traffic control use CSA, while tickets and schedules use OK.
What is the radio callsign for Czech Airlines?
Air traffic control refers to Czech Airlines by the radio callsign "Csa-Lines".
What country is Czech Airlines based in?
Czech Airlines (OK) is based in the Czech Republic.
What is the abbreviation for Czech Airlines?
The two-character IATA abbreviation for Czech Airlines is OK, and its three-letter ICAO code is CSA.
How many routes does Czech Airlines fly?
The open route dataset lists 111 route entries for Czech Airlines, codeshare listings included, which ranks the carrier number 129 by that count. The route table below shows only the pairs Czech Airlines is listed as operating.