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Flight Reliability

NK 550 · Spirit Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and NK 550 moved between routes during this period. Numbers below combine all of them, so treat them as background, not a verdict. For a cleaner answer, check the route you are actually flying.

Combined across all its routes

75%
Arrive within 15 minutes
7 min
Average arrival delay
1.8%
Cancelled
8 min early
Median arrival delay

Based on 164 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon58%(24 flights)
  • Tue78%(23 flights)
  • Wed96%(23 flights)
  • Thu78%(23 flights)
  • Fri70%(23 flights)
  • Sat82%(22 flights)
  • Sun61%(23 flights)
On-time by departure window
  • 6–9 AM76%(128 flights)
  • 9 AM–12 PM70%(33 flights)
On-time trend by month
64%
Apr

Nov 83% → Apr 64% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
November 202583%29
December 202577%30
January 202680%30
February 202671%28
March 202667%30
April 202664%14
Departures on time
76%
Diverted
0%
Flights flown
161
Months covered
6

Keep nerding

Based on 164 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.