NK Airline Code, Spirit Airlines
NK is the IATA airline code for Spirit Airlines, based in the United States. Its ICAO code is NKS and its radio callsign is "Spirit Wings".
What airline is NK?
NK is the IATA airline code for Spirit Airlines, based in the United States. Its ICAO code is NKS and its radio callsign is "Spirit Wings".
The open dataset lists 242 scheduled routes for the carrier, placing it at number 68 among airlines worldwide. You will see NK as the two-character prefix on its flight numbers, for example NK123.
| IATA airline code | NK |
|---|---|
| ICAO airline code | NKS |
| Radio callsign | Spirit Wings |
| Country | United States |
| Scheduled routes | 242 (ranked #68) |
| Most routes at | DFW Dallas-Fort Worth |
| Status | Active |
What is the airline code for Spirit Airlines?
The IATA airline code for Spirit Airlines is NK, and its ICAO code is NKS. The two-character IATA code prefixes the carrier's flight numbers, for example NK123.
IATA airline codes are two characters and can reuse letters over time, so a retired airline's code may later be assigned to another carrier. ICAO codes are three letters and are more stable, which is why flight plans use them.
Which airport does Spirit Airlines serve most?
Spirit Airlines (NK) appears on more routes at DFW, Dallas-Fort Worth, than at any other airport in the open route dataset.
The airports Spirit Airlines appears at most often in that dataset, most routes first:
Routes flown by Spirit Airlines
The busiest pairs Spirit Airlines (NK) is listed as operating in the open route dataset (codeshare-only listings excluded), with distance and typical flight time:
Route and carrier data comes from the OpenFlights open dataset, regenerated here on . It is a historical snapshot of scheduled connections, not a live schedule, and it includes codeshare listings, so some carriers shown may no longer operate the route or exist. How we build this · Data and sources.
Frequently asked questions
What is the ICAO code for Spirit Airlines?
Spirit Airlines uses the ICAO airline code NKS and the radio callsign "Spirit Wings". Flight plans and air traffic control use NKS, while tickets and schedules use NK.
What is the radio callsign for Spirit Airlines?
Air traffic control refers to Spirit Airlines by the radio callsign "Spirit Wings".
What country is Spirit Airlines based in?
Spirit Airlines (NK) is based in the United States.
What is the abbreviation for Spirit Airlines?
The two-character IATA abbreviation for Spirit Airlines is NK, and its three-letter ICAO code is NKS.
How many routes does Spirit Airlines fly?
The open route dataset lists 242 route entries for Spirit Airlines, codeshare listings included, which ranks the carrier number 68 by that count. The route table below shows only the pairs Spirit Airlines is listed as operating.