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WanderNerd

Flight Reliability

NK 1151 · Spirit Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and NK 1151 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

68%
Arrive within 15 minutes
16 min
Average arrival delay
7.4%
Cancelled
2 min early
Median arrival delay

Based on 163 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon64%(22 flights)
  • Tue70%(20 flights)
  • Wed68%(19 flights)
  • Thu91%(23 flights)
  • Fri63%(24 flights)
  • Sat83%(23 flights)
  • Sun30%(20 flights)
On-time by departure window
  • 6–9 AM(9 flights)
  • 9 AM–12 PM63%(109 flights)
  • 6–9 PM88%(25 flights)
  • 9 PM–12 AM(8 flights)
On-time trend by month
62%
Apr

Jul 86% → Apr 62% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
July 202586%21
August 202575%12
December 202568%22
January 202657%30
February 202665%26
March 202667%27
April 202662%13
Departures on time
58%
Diverted
0%
Flights flown
151
Months covered
7

Based on 163 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.