Flight Reliability
NK 1397 · Spirit Airlines
San Juan → Fort Lauderdale (SJU–FLL)
88
Pretty Reliable
WanderNerd Reliability Score
- 80%
- Arrive within 15 minutes
- 3 min
- Average arrival delay
- 0%
- Cancelled
- 10 min early
- Median arrival delay
Based on 30 historical flights. Data through May 2026.
What the data says
A bit ahead of the SJU–FLL route.
NK 1397 arrived on time 80% of the time, versus 76% across the SJU–FLL route.
A bit ahead of the Spirit Airlines network.
NK 1397 arrived on time 80% of the time, versus 74% across the Spirit Airlines network.
The breakdown
- Mon—(5 flights)
- Tue—(5 flights)
- Wed—(5 flights)
- Thu—(5 flights)
- Fri—(5 flights)
- Sat—(0 flights)
- Sun—(5 flights)
- 3–6 PM80%(10 flights)
- 9 PM–12 AM80%(20 flights)
- Departures on time
- 80%
- Diverted
- 0%
- Flights flown
- 30
- Months covered
- 2
Same route, other flights
Keep nerding
Based on 30 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.