About Spirit Airlines
Spirit Airlines is a low-cost United States airline headquartered in Dania Beach, FL. The carrier operates under the IATA designator NK and the ICAO designator NKS; air-traffic controllers address its flight crews on the radio with the callsign "SPIRIT WINGS". The airline was founded in 1980 and currently operates a fleet of approximately 213 aircraft.
Within the US air-travel ecosystem, Spirit Airlines sits in the "Low-cost" segment. Low-cost carriers focus on point-to-point flying, lean operations, and unbundled fares. They have re-shaped fare floors in many US markets and are often the price-setter on routes where they overlap with the majors.
Codes & identifiers
| Legal / brand name | Spirit Airlines |
|---|---|
| IATA code | NK |
| ICAO code | NKS |
| Radio callsign | SPIRIT WINGS |
| Category | Low-cost |
| Headquarters | Dania Beach, FL |
| Year founded | 1980 |
| Fleet size | 213 aircraft |
| Official website | www.spirit.com |
Hub & focus airports
The airports below are listed as hubs or focus cities for Spirit Airlines. From these airports the carrier operates the densest schedule of nonstop departures, holds the most gate space, and typically supports the broadest range of international or long-haul service.
| Airport | City | State | IATA | Class |
|---|---|---|---|---|
| Fort Lauderdale Hollywood International Airport | Fort Lauderdale | FL | FLL |
Large hub |
| Orlando International Airport | Orlando | FL | MCO |
Large hub |
| Harry Reid International Airport | Las Vegas | NV | LAS |
Large hub |
| Detroit Metropolitan Wayne County Airport | Detroit | MI | DTW |
Large hub |
| Hartsfield Jackson Atlanta International Airport | Atlanta | GA | ATL |
Large hub |
| Dallas Fort Worth International Airport | Dallas-Fort Worth | TX | DFW |
Large hub |
Booking & service notes
Schedules, fares, and aircraft assignments for Spirit Airlines change frequently, sometimes weekly. The data on this page is intended as a stable reference for codes, headquarters, fleet scale, and hub list; for live availability, fare class rules, baggage policies, and seat selection, always consult the carrier's own booking system at www.spirit.com. When a flight is operated under Spirit Airlines's code but flown by a regional partner, the operating carrier is normally disclosed on the booking page; this distinction matters for elite-status benefits and, in rare cases, for irregular-operations rebooking.