OK Airline Code: Czech Airlines IATA & ICAO
Czech Airlines is stored in this dataset as IATA code OK and ICAO code CSA, based in Czechia. GDS segment lines print the IATA code before the flight number. Live routes, fares and baggage policies are not in this dataset.
Overview
OK is the IATA airline designator stored for Czech Airlines. ICAO is CSA. Country of record: Czechia. On a cryptic GDS line the IATA code sits immediately before the flight number, for example OK 456. Agents should not confuse OK (two characters, sometimes a digit such as 6E) with CSA (three letters). This code page does not list routes, alliances, baggage rules, or fleet. Those facts are not in the dataset. Other Czechia carriers stored here: none stored. To decode a full itinerary that markets OK, paste the PNR into the parser.
How to use this page
- Find OK at the start of the flight line in the PNR.
- Paste the full itinerary into the PNR parser (or the GDS-specific parser if you know the host).
- Confirm the carrier name resolves to Czech Airlines.
- Do not add baggage or meal claims that the PNR did not print.
Example
Example segment: 2 OK 456 H 26OCT 5 WLGAKL HK1 1945 2050 The parser should set marketing carrier OK (Czech Airlines) and flight 456. Class H is a fare bucket, not proof of cabin without the booking-class tool.
FAQs
What does OK mean?
OK is the IATA airline code stored for Czech Airlines.
What airline is OK?
Czech Airlines, country of record Czechia.
What is the ICAO code for Czech Airlines?
CSA.
Is OK the same as CSA?
No. Tickets and GDS segments use OK. Flight plans use CSA.
Where is Czech Airlines based?
This dataset lists Czechia. Headquarters address is not stored.
How do I parse a OK itinerary?
Paste the GDS text into the PNR parser. Lines beginning with OK plus a flight number become segments.
Does this page show Czech Airlines schedules?
No. Schedules are not in the dataset.
What baggage does OK allow?
Only what the pasted PNR prints (for example 2PC). Public policy pages are not stored here.
Are there other airlines from Czechia?
Stored peers: none stored.
Can OK include a number?
Some IATA codes include a digit (for example 6E). This catalog stores those codes when present.
How is Czech Airlines shown in a PNR?
Usually as marketing carrier OK before the flight number, not the full name.
Where does this information come from?
The product airline table used by the parser. Last template update 17 Aug 2026. Unverified operational claims are omitted.