WN Airline Code: Southwest Airlines IATA & ICAO
Southwest Airlines is stored in this dataset as IATA code WN and ICAO code SWA, based in United States. GDS segment lines print the IATA code before the flight number. Live routes, fares and baggage policies are not in this dataset.
Overview
WN is the IATA airline designator stored for Southwest Airlines. ICAO is SWA. Country of record: United States. On a cryptic GDS line the IATA code sits immediately before the flight number, for example WN 456. Agents should not confuse WN (two characters, sometimes a digit such as 6E) with SWA (three letters). This code page does not list routes, alliances, baggage rules, or fleet. Those facts are not in the dataset. Other United States carriers stored here: UA (United Airlines), AA (American Airlines), DL (Delta Air Lines), AS (Alaska Airlines), B6 (JetBlue), NK (Spirit Airlines). To decode a full itinerary that markets WN, paste the PNR into the parser.
How to use this page
- Find WN 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 Southwest Airlines.
- Do not add baggage or meal claims that the PNR did not print.
Example
Example segment: 2 WN 456 H 26OCT 5 WLGAKL HK1 1945 2050 The parser should set marketing carrier WN (Southwest Airlines) and flight 456. Class H is a fare bucket, not proof of cabin without the booking-class tool.
FAQs
What does WN mean?
WN is the IATA airline code stored for Southwest Airlines.
What airline is WN?
Southwest Airlines, country of record United States.
What is the ICAO code for Southwest Airlines?
SWA.
Is WN the same as SWA?
No. Tickets and GDS segments use WN. Flight plans use SWA.
Where is Southwest Airlines based?
This dataset lists United States. Headquarters address is not stored.
How do I parse a WN itinerary?
Paste the GDS text into the PNR parser. Lines beginning with WN plus a flight number become segments.
Does this page show Southwest Airlines schedules?
No. Schedules are not in the dataset.
What baggage does WN allow?
Only what the pasted PNR prints (for example 2PC). Public policy pages are not stored here.
Are there other airlines from United States?
Stored peers: UA (United Airlines), AA (American Airlines), DL (Delta Air Lines), AS (Alaska Airlines), B6 (JetBlue), NK (Spirit Airlines).
Can WN include a number?
Some IATA codes include a digit (for example 6E). This catalog stores those codes when present.
How is Southwest Airlines shown in a PNR?
Usually as marketing carrier WN 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.