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WanderNerd

Flight Reliability

NK 2128 · Spirit Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and NK 2128 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

70%
Arrive within 15 minutes
15 min
Average arrival delay
1.8%
Cancelled
2 min early
Median arrival delay

Based on 114 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon47%(15 flights)
  • Tue88%(17 flights)
  • Wed88%(17 flights)
  • Thu65%(17 flights)
  • Fri60%(15 flights)
  • Sat88%(17 flights)
  • Sun43%(14 flights)
On-time by departure window
  • 3–6 PM73%(67 flights)
  • 6–9 PM83%(18 flights)
  • 9 PM–12 AM52%(27 flights)
On-time trend by month
67%
Oct

Jun 59% → Oct 67% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202559%29
August 202588%16
September 202579%29
October 202567%30
Departures on time
68%
Diverted
0%
Flights flown
112
Months covered
6

Based on 114 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.