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WanderNerd

Flight Reliability

NK 1800 · Spirit Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and NK 1800 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

72%
Arrive within 15 minutes
8 min
Average arrival delay
5.3%
Cancelled
6 min early
Median arrival delay

Based on 171 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon65%(23 flights)
  • Tue55%(20 flights)
  • Wed89%(18 flights)
  • Thu65%(26 flights)
  • Fri84%(25 flights)
  • Sat85%(27 flights)
  • Sun59%(22 flights)
On-time by departure window
  • 6–9 AM74%(117 flights)
  • 9 AM–12 PM88%(17 flights)
  • 12–3 PM(4 flights)
  • 9 PM–12 AM61%(23 flights)
On-time trend by month
61%
Apr

Jul 77% → Apr 61% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
July 202577%13
November 202572%29
January 202691%22
February 202684%25
March 202648%27
April 202661%28
Departures on time
75%
Diverted
0.6%
Flights flown
161
Months covered
10

Based on 171 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.