CZ Airline Code: China Southern Airlines IATA & ICAO
China Southern Airlines is stored in this dataset as IATA code CZ and ICAO code CSN, based in China. GDS segment lines print the IATA code before the flight number. Live routes, fares and baggage policies are not in this dataset.
Overview
CZ is the IATA airline designator stored for China Southern Airlines. ICAO is CSN. Country of record: China. On a cryptic GDS line the IATA code sits immediately before the flight number, for example CZ 456. Agents should not confuse CZ (two characters, sometimes a digit such as 6E) with CSN (three letters). This code page does not list routes, alliances, baggage rules, or fleet. Those facts are not in the dataset. Other China carriers stored here: CA (Air China), MU (China Eastern Airlines), HU (Hainan Airlines). To decode a full itinerary that markets CZ, paste the PNR into the parser.
How to use this page
- Find CZ 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 China Southern Airlines.
- Do not add baggage or meal claims that the PNR did not print.
Example
Example segment: 2 CZ 456 H 26OCT 5 WLGAKL HK1 1945 2050 The parser should set marketing carrier CZ (China Southern Airlines) and flight 456. Class H is a fare bucket, not proof of cabin without the booking-class tool.
FAQs
What does CZ mean?
CZ is the IATA airline code stored for China Southern Airlines.
What airline is CZ?
China Southern Airlines, country of record China.
What is the ICAO code for China Southern Airlines?
CSN.
Is CZ the same as CSN?
No. Tickets and GDS segments use CZ. Flight plans use CSN.
Where is China Southern Airlines based?
This dataset lists China. Headquarters address is not stored.
How do I parse a CZ itinerary?
Paste the GDS text into the PNR parser. Lines beginning with CZ plus a flight number become segments.
Does this page show China Southern Airlines schedules?
No. Schedules are not in the dataset.
What baggage does CZ allow?
Only what the pasted PNR prints (for example 2PC). Public policy pages are not stored here.
Are there other airlines from China?
Stored peers: CA (Air China), MU (China Eastern Airlines), HU (Hainan Airlines).
Can CZ include a number?
Some IATA codes include a digit (for example 6E). This catalog stores those codes when present.
How is China Southern Airlines shown in a PNR?
Usually as marketing carrier CZ 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.