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Flight Reliability

NK 2129 · Spirit Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and NK 2129 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
1.8%
Cancelled
7 min early
Median arrival delay

Based on 109 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon75%(16 flights)
  • Tue85%(13 flights)
  • Wed100%(14 flights)
  • Thu65%(17 flights)
  • Fri75%(16 flights)
  • Sat100%(17 flights)
  • Sun71%(14 flights)
On-time by departure window
  • 6–9 AM83%(23 flights)
  • 9 AM–12 PM—(8 flights)
  • 3–6 PM—(9 flights)
  • 6–9 PM81%(67 flights)
On-time trend by month
67%
Oct

Jun 85% → Oct 67% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202585%26
August 2025100%16
September 202583%29
October 202567%30
Departures on time
81%
Diverted
0%
Flights flown
107
Months covered
6

Keep nerding

Based on 109 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.