Flight Reliability
NK 451 · Spirit Airlines
Austin → Fort Lauderdale (AUS–FLL)
48
Bring Snacks
WanderNerd Reliability Score
- 79%
- Arrive within 15 minutes
- 9 min
- Average arrival delay
- 9.7%
- Cancelled
- 1 min early
- Median arrival delay
Based on 31 historical flights. Data through May 2026.
What the data says
Better than the AUS–FLL route average.
NK 451 arrived on time 79% of the time, versus 68% across the AUS–FLL route.
A bit ahead of the Spirit Airlines network.
NK 451 arrived on time 79% of the time, versus 74% across the Spirit Airlines network.
The breakdown
- Mon—(3 flights)
- Tue—(5 flights)
- Wed—(5 flights)
- Thu—(1 flights)
- Fri—(5 flights)
- Sat—(4 flights)
- Sun—(5 flights)
- Departures on time
- 86%
- Diverted
- 0%
- Flights flown
- 28
- Months covered
- 2
Same route, other flights
Keep nerding
Based on 31 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.