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WanderNerd

Flight Reliability

NK 378 · Spirit Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and NK 378 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

59%
Arrive within 15 minutes
22 min
Average arrival delay
3.0%
Cancelled
4 min
Median arrival delay

Based on 100 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon60%(15 flights)
  • Tue67%(12 flights)
  • Wed77%(13 flights)
  • Thu47%(15 flights)
  • Fri60%(15 flights)
  • Sat67%(12 flights)
  • Sun40%(15 flights)
On-time by departure window
  • 6–9 AM68%(56 flights)
  • 9 AM–12 PM39%(33 flights)
  • 3–6 PM(8 flights)
On-time trend by month
57%
Apr

Nov 96% → Apr 57% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
November 202596%26
February 202635%17
March 202638%29
April 202657%21
Departures on time
65%
Diverted
0%
Flights flown
97
Months covered
6

Based on 100 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.