WN

Transportation & Travel abbreviation · Airline Code

WN
Stands forSouthwest Airlines
CategoriesTransportation & Travel

WN stands for Southwest Airlines, an airline code abbreviation.

Largest US airline by domestic passengers, headquartered at Dallas Love Field and known for point-to-point routes and an all-Boeing 737 fleet. Its traditional open seating ended in 2026 as the airline moved to assigned seats.

Example: Southwest flight WN 1234 to Denver is now boarding group A, positions 1 through 30.

Usage notes

ICAO code SWA; callsign "Southwest." The airline began flying within Texas in 1971 and became the model for low-cost carriers worldwide. The IATA code WN has no obvious connection to the name; the more intuitive SW was assigned to Air Namibia. Southwest long allowed two free checked bags, a policy it ended in 2025.

More airline code abbreviations

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  • AA – American Airlines
  • AC – Air Canada
  • AF – Air France
  • AI – Air India
  • AM – Aeroméxico
  • AS – Alaska Airlines
  • AV – Avianca
  • AY – Finnair
  • AZ – ITA Airways
  • B6 – JetBlue
  • BA – British Airways

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Edited by the AbbreviationList.com team. Spotted an error or a missing meaning? Contact us.