CZ Airline Code, China Southern Airlines
CZ is the IATA airline code for China Southern Airlines, based in China. Its ICAO code is CSN and its radio callsign is "China Southern".
What airline is CZ?
CZ is the IATA airline code for China Southern Airlines, based in China. Its ICAO code is CSN and its radio callsign is "China Southern".
With 1,454 scheduled routes in the open dataset, it is one of the most connected carriers in the world, ranked number 6 by routes. You will see CZ as the two-character prefix on its flight numbers, for example CZ123.
| IATA airline code | CZ |
|---|---|
| ICAO airline code | CSN |
| Radio callsign | China Southern |
| Country | China |
| Alliance | None (unaligned) |
| Scheduled routes | 1,454 (ranked #6) |
| Most routes at | CAN Guangzhou (Huadu) |
| Status | Active |
What is the airline code for China Southern Airlines?
The IATA airline code for China Southern Airlines is CZ, and its ICAO code is CSN. The two-character IATA code prefixes the carrier's flight numbers, for example CZ123.
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 CZ code comes from
CZ belongs to China Southern Airlines, headquartered in Guangzhou. Like the other codes created in the 1988 CAAC breakup, the letters are an assignment rather than an abbreviation. China Southern was a SkyTeam member from 2007 until it left the alliance in 2019 to pursue independent partnerships.
China Southern operates the largest fleet in Asia, well over 600 aircraft as of the mid-2020s.
More on how these identifiers work in what an IATA code is and airline callsigns.
What are China Southern Airlines's hub airports?
China Southern Airlines (CZ) concentrates its network on CAN (Guangzhou), PEK (Beijing).
Which airport does China Southern Airlines serve most?
China Southern Airlines (CZ) appears on more routes at CAN, Guangzhou (Huadu), than at any other airport in the open route dataset.
The airports China Southern Airlines appears at most often in that dataset, most routes first:
Routes flown by China Southern Airlines
The busiest pairs China Southern Airlines (CZ) 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 China Southern Airlines?
China Southern Airlines uses the ICAO airline code CSN and the radio callsign "China Southern". Flight plans and air traffic control use CSN, while tickets and schedules use CZ.
What is the radio callsign for China Southern Airlines?
Air traffic control refers to China Southern Airlines by the radio callsign "China Southern".
What country is China Southern Airlines based in?
China Southern Airlines (CZ) is based in China.
What is the abbreviation for China Southern Airlines?
The two-character IATA abbreviation for China Southern Airlines is CZ, and its three-letter ICAO code is CSN.
How many routes does China Southern Airlines fly?
The open route dataset lists 1,454 route entries for China Southern Airlines, codeshare listings included, which ranks the carrier number 6 by that count. The route table below shows only the pairs China Southern Airlines is listed as operating.
Is China Southern Airlines in an airline alliance?
China Southern Airlines (CZ) is not a member of Star Alliance, oneworld or SkyTeam. It relies on its own network and bilateral partnerships instead.