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WanderNerd

Flight Reliability

NK 456 · Spirit Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and NK 456 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

69%
Arrive within 15 minutes
16 min
Average arrival delay
6.9%
Cancelled
2 min
Median arrival delay

Based on 160 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon50%(20 flights)
  • Tue82%(22 flights)
  • Wed94%(18 flights)
  • Thu71%(24 flights)
  • Fri74%(23 flights)
  • Sat57%(23 flights)
  • Sun56%(18 flights)
On-time by departure window
  • 12–3 PM(8 flights)
  • 3–6 PM69%(88 flights)
  • 6–9 PM81%(36 flights)
  • 9 PM–12 AM31%(16 flights)
On-time trend by month
69%
Apr

Sep 85% → Apr 69% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
September 202585%27
December 202554%24
January 202673%26
February 202669%26
March 202661%28
April 202669%13
Departures on time
65%
Diverted
0.6%
Flights flown
148
Months covered
7

Based on 160 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.