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WanderNerd

Flight Reliability

NK 1158 · Spirit Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and NK 1158 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

66%
Arrive within 15 minutes
18 min
Average arrival delay
11.9%
Cancelled
2 min early
Median arrival delay

Based on 159 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon60%(20 flights)
  • Tue75%(20 flights)
  • Wed79%(19 flights)
  • Thu57%(23 flights)
  • Fri50%(22 flights)
  • Sat80%(20 flights)
  • Sun63%(16 flights)
On-time by departure window
  • 6–9 AM47%(15 flights)
  • 3–6 PM59%(22 flights)
  • 6–9 PM70%(103 flights)
On-time trend by month
46%
Apr

Jul 87% → Apr 46% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
July 202587%23
August 202583%12
December 202547%15
January 202680%30
February 202665%26
March 202638%21
April 202646%13
Departures on time
66%
Diverted
0%
Flights flown
140
Months covered
7

Based on 159 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.