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Spirit Airlines (NK) Reservations
Compare Spirit Airlines fares, understand the add-on costs, and book with 24/7 support.
Adults
+12 years old
Children
2-11 years old
Infants
Under 2 years
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Adults
+12 years old
Children
2-11 years old
Infants
Under 2 years
Popular Spirit Airlines Routes
Routes Spirit Airlines flies most often, with the lowest one-way fares we have recorded recently. Search above for live availability, or call and an agent will price your dates.
Fares are quoted in USD and are the lowest one-way prices we have recorded recently on these routes. They are not a live quote: availability and pricing change constantly and cannot be guaranteed until ticketed. Please review our terms and conditions before booking.
About Spirit Airlines
Spirit Airlines (IATA code: NK) is an ultra-low-cost carrier headquartered in Dania Beach, Florida. Its model unbundles nearly everything: the advertised fare covers a seat and a personal item, and carry-on bags, checked bags, seat assignments and refreshments are all priced separately.
Spirit’s largest operations are at Fort Lauderdale, Orlando, Las Vegas, Detroit and Dallas/Fort Worth, with a network concentrated on leisure routes across the United States, the Caribbean and Latin America.
The unbundled model can genuinely be the cheapest option, but only if you travel light and understand the add-ons — a carry-on bag purchased at the gate costs several times what it costs at booking. Our agents price the full trip including bags and seats up front, so you can compare Spirit honestly against a legacy carrier rather than comparing headline fares.
Spirit Airlines Baggage Policy
Carry-On Baggage
- One personal item is included with every fare — maximum 18 x 14 x 8 inches.
- A full-size carry-on bag costs extra and must be purchased separately.
- Buy any bag at the time of booking. Prices rise sharply at check-in and rise again at the gate.
Checked Baggage
- All checked bags are chargeable on every fare type.
- Maximum size per checked bag: 62 linear inches (length + width + height).
- Maximum weight: 40 lb — this is lower than most carriers, and overweight fees start above it.
- Our agents quote the total price including bags so you can compare Spirit fairly against other airlines.
24/7 Post-Booking Assistance
Travel can be unpredictable, but our travel experts are by your side around the clock. We help you adjust your Spirit Airlines booking, cancel flights, add services, or update passenger details — and if you need to cancel, we walk you through the refund process with complete transparency, so you know exactly what to expect and when.
Exclusive Add-On Services
Spirit Airlines — Frequently Asked Questions
It depends entirely on what you carry. With only a personal item, Spirit is frequently the cheapest option on its routes. Once you add a carry-on, a checked bag and a seat assignment, the total often matches or exceeds a legacy carrier. Call us and we will price both so you can see the real comparison.
A seat on the aircraft and one personal item that fits under the seat. Carry-on bags, checked bags, seat selection, refreshments and printed boarding passes are all charged separately.
The price varies by route and by when you buy it. Buying at booking is always cheapest; buying at the gate is by far the most expensive. Our agents add bags at the time of booking so you never pay gate prices.
40 lb, which is 10 lb lower than most US carriers. Overweight fees begin above that, so weigh your bag before you leave for the airport.
Changes are possible but generally carry a fee plus any fare difference, and the rules depend on how far ahead you change. Call us and we will review your specific booking.
That is exactly the comparison our agents make for free. We price the complete trip on both, including everything you plan to bring, and tell you which one actually costs less.
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