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Spirit Airlines

Spirit Airlines is a U.S.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 27, 2026|2 min read| Fact-checked

Spirit Airlines is a U.S. ultra-low-cost carrier headquartered in Dania Beach, Florida. It operates scheduled passenger service to destinations across the United States, Latin America, and the Caribbean. The airline is known for its low base fares and separate fees for many extras, including larger bags and onboard amenities.

History

Spirit Airlines was founded in 1983 and began operations as a passenger airline in 1990. It has grown into a major U.S. ultra-low-cost carrier focused on high-density, low-fare service.

Business model

Spirit uses an a la carte pricing model, with a low base fare and extra charges for items such as carry-on bags, checked bags, seat selection, and other services. This approach is central to its ultra-low-cost positioning.

Destinations

Spirit flies scheduled passenger service across the United States and to points in Latin America and the Caribbean. Its route network is concentrated on leisure and visiting-friends-and-relatives travel markets.

Policies and passenger services

Spirit’s baggage rules are a major part of its passenger experience, including one free personal item and separate charges for larger bags. The airline also offers customer service channels and optional onboard services, which may vary by fare and itinerary.

Key facts

  • Spirit Airlines is a U.S. low-cost carrier that sells many services separately from the base fare.
  • The airline allows one free personal item, while carry-on and checked bags generally cost extra.
  • Spirit’s standard checked-bag limit is 62 linear inches and 50 pounds, with added fees for overweight or oversized bags.
  • Spirit offers scheduled passenger flights to destinations in the United States, Latin America, and the Caribbean.
  • The airline uses the IATA code NK and ICAO code NKS.
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Canadian context

Spirit Airlines serves Canadian readers indirectly by offering low-cost travel options between some U.S. and Canadian leisure destinations through its North American network.

Frequently asked questions

What is Spirit Airlines' baggage policy?
Spirit allows one free personal item, while carry-on and checked bags usually require payment. Checked bags must generally fit within 62 linear inches and weigh no more than 50 pounds, with extra fees for overweight or oversized bags.
Is Spirit Airlines safe?
Spirit Airlines is a regulated commercial airline that must meet U.S. aviation safety requirements. Like other airlines operating in the United States, it is subject to oversight by aviation authorities and maintenance standards.
How do I cancel a Spirit Airlines flight?
Spirit cancellations are typically managed through the airline’s website or customer support, depending on the booking. The exact refund or credit outcome depends on the fare type, timing, and whether the ticket is eligible for cancellation rules.
Does Spirit Airlines have Wi-Fi?
Spirit offers Wi-Fi on some aircraft and routes, but availability is not universal across the fleet. Access and pricing can vary by aircraft and flight.
What is Spirit Airlines' customer service number?
Spirit’s main U.S. customer service number is 1-855-728-3555.
Where does Spirit Airlines fly?
Spirit flies scheduled passenger service in the United States, Latin America, and the Caribbean. Its route network changes over time based on season and demand.

References

  1. Spirit Airlines — https://customersupport.spirit.com/en-us/category/article/KA-01535
    Supports: Official checked-bag size and weight limits.
  2. Spirit Airlines — https://www.spirit.com/help/contact-us
    Supports: Customer service contact information.
  3. Spirit Airlines — https://www.spirit.com/s/wifi
    Supports: Wi-Fi availability and onboard internet service details.
  4. Spirit Airlines — https://www.spirit.com/legal/contract-of-carriage
    Supports: Baggage rules, fees, and cancellation-related terms.
  5. Wikipedia — https://en.wikipedia.org/wiki/Spirit_Airlines
    Supports: Founding date, headquarters, IATA/ICAO codes, and general company profile.
  6. U.S. Securities and Exchange Commission — https://www.sec.gov/edgar/browse/?CIK=1498710
    Supports: Corporate identity and public-company filing record.