All Spirit Airlines flight numbers

Spirit Airlines’s own profile links its strongest and weakest departures only. This is the complete set: every Spirit Airlines flight number with enough operating history to clear FlyerIntel’s publishing bar, still flying its current route, July 2023 – June 2026.

Every published flight number

2 numbers, ordered by operations recorded on the route each one currently flies.

All Spirit Airlines flight numbers
#	Flight	Route	Operations	On time
1	NK777	FLL → LAS Fort Lauderdale to Las Vegas	785	67.9%
2	NK1	FLL → ORD Fort Lauderdale to Chicago	621	67.4%

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – June 2026 · A flight number is a slot in a schedule and gets reassigned to different city pairs over time, so each is measured only on the route it currently operates. Numbers with fewer than 600 operations on that route, or last flown more than a quarter ago, are not listed. Schedules change — confirm a departure still operates before booking around it.

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Analysis last recomputed September 15, 2026