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- NK
- Low-cost
- Hub FLL
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About Spirit Airlines
Spirit Airlines was a US ultra-low-cost carrier based in South Florida, with Fort Lauderdale as its largest base. It stopped flying in May 2026, when the company cancelled all flights and began winding down the business. Before that, Spirit flew within the United States and to the Caribbean, Mexico, Central America and northern South America, selling an unbundled ticket with seats, bags and other extras added separately. It was never a member of a global airline alliance. This page is kept as a reference for agents and developers who still see the NK code in old bookings, reports or data feeds.
Because the airline no longer operates, you should not expect Spirit Airlines fares in IATA.co search results. When you search live fares in the booking portal or through the flights API, you see whichever airlines our flight suppliers offer for your route and dates, and bookings are paid from your prepaid balance. On routes Spirit used to serve, other US carriers such as Frontier, JetBlue, Southwest and the larger network airlines may appear instead.
Spirit Airlines at a glance
- Ceased flight operations in May 2026
- Was a US ultra-low-cost carrier based at Fort Lauderdale
- Flew within the US and to the Caribbean and Latin America
- Was not a member of any global alliance
Spirit Airlines questions
No. Spirit Airlines cancelled all flights and began winding down its business in May 2026.
No, because the airline has stopped operating. A search on IATA.co shows fares from other airlines that our flight suppliers offer for your route and dates.
Spirit used the IATA code NK and the ICAO code NKS. You may still see these codes in historical booking data.
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