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WanderNerd

Flight Reliability

NK 2181 · Spirit Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and NK 2181 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

81%
Arrive within 15 minutes
2 min
Average arrival delay
5.5%
Cancelled
9 min early
Median arrival delay

Based on 181 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon60%(25 flights)
  • Tue77%(22 flights)
  • Wed92%(25 flights)
  • Thu96%(26 flights)
  • Fri89%(27 flights)
  • Sat70%(23 flights)
  • Sun78%(23 flights)
On-time by departure window
  • 6–9 AM92%(71 flights)
  • 9 AM–12 PM92%(13 flights)
  • 12–3 PM71%(17 flights)
  • 6–9 PM70%(70 flights)
On-time trend by month
71%
Apr

Aug 95% → Apr 71% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202595%19
September 202593%30
October 202586%29
January 202667%21
February 202679%24
March 202664%28
April 202671%14
Departures on time
78%
Diverted
0%
Flights flown
171
Months covered
8

Based on 181 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.