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WanderNerd

Flight Reliability

NK 612 · Spirit Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and NK 612 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

76%
Arrive within 15 minutes
21 min
Average arrival delay
5.7%
Cancelled
2 min early
Median arrival delay

Based on 88 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon75%(12 flights)
  • Tue(8 flights)
  • Wed90%(10 flights)
  • Thu78%(18 flights)
  • Fri82%(11 flights)
  • Sat(7 flights)
  • Sun65%(17 flights)
On-time by departure window
  • 6–9 AM92%(24 flights)
  • 9 AM–12 PM77%(31 flights)
  • 12–3 PM42%(19 flights)
  • 9 PM–12 AM(9 flights)
On-time trend by month
68%
Dec

Oct 88% → Dec 68% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
October 202588%16
November 202579%28
December 202568%25
Departures on time
74%
Diverted
0%
Flights flown
83
Months covered
5

Based on 88 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.