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WanderNerd

Flight Reliability

NK 998 · Spirit Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and NK 998 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
12 min
Average arrival delay
1.8%
Cancelled
4 min
Median arrival delay

Based on 112 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon61%(18 flights)
  • Tue86%(14 flights)
  • Wed77%(13 flights)
  • Thu44%(16 flights)
  • Fri68%(19 flights)
  • Sat64%(14 flights)
  • Sun63%(16 flights)
On-time by departure window
  • 12–3 PM68%(62 flights)
  • 3–6 PM63%(48 flights)
On-time trend by month
79%
Apr

Dec 45% → Apr 79% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
December 202545%20
January 202674%19
February 202670%27
March 202663%30
April 202679%14
Departures on time
67%
Diverted
0%
Flights flown
110
Months covered
5

Based on 112 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.