NK

Transportation & Travel abbreviation · Airline Code

NK
Stands forSpirit Airlines
CategoriesTransportation & Travel

NK stands for Spirit Airlines, an airline code abbreviation.

Ultra-low-cost US airline headquartered in South Florida, known for its yellow aircraft, bare-bones fares and charges for nearly every extra. Fort Lauderdale is its largest base.

Example: Spirit NK 145 has no free carry-on, so pay for your bag online before you get to the airport.

Usage notes

ICAO code NKS; callsign "Spirit Wings." Spirit began as Charter One, a Detroit tour operator, and took the Spirit name in 1992. Proposed mergers with Frontier and JetBlue both fell through, and the airline has gone through bankruptcy restructuring since late 2024. Its "Bare Fare" approach made it the best-known US ultra-low-cost carrier.

More airline code abbreviations

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  • LX – Swiss International Air Lines
  • MH – Malaysia Airlines
  • MS – EgyptAir
  • MU – China Eastern Airlines
  • NH – All Nippon Airways
  • NZ – Air New Zealand
  • OS – Austrian Airlines
  • OZ – Asiana Airlines
  • PR – Philippine Airlines
  • QF – Qantas
  • QR – Qatar Airways

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