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WanderNerd

Flight Reliability

NK 389 · Spirit Airlines

Fort Lauderdale → New York (FLLLGA)81% of its flights flew this route. The rest (FLL–RDU) are included in these numbers.

55
A Little Dicey
WanderNerd Reliability Score
66%
Arrive within 15 minutes
11 min
Average arrival delay
2.3%
Cancelled
2 min
Median arrival delay

Based on 43 historical flights. Data through May 2026.

What the data says

Lagging the Spirit Airlines network.

NK 389 arrived on time 66% of the time, versus 74% across the Spirit Airlines network.

The breakdown

On-time by weekday
  • Mon(7 flights)
  • Tue(5 flights)
  • Wed(5 flights)
  • Thu(8 flights)
  • Fri(5 flights)
  • Sat(5 flights)
  • Sun(6 flights)
On-time by departure window
  • 6–9 AM70%(33 flights)
  • 6–9 PM(8 flights)
Departures on time
64%
Diverted
2.3%
Flights flown
41
Months covered
4

Based on 43 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.