Flight Reliability
NK 1645 · Spirit Airlines
Fort Lauderdale → San Antonio (FLL–SAT)90% of its flights flew this route. The rest (MCO–MYR) are included in these numbers.
61
A Little Dicey
WanderNerd Reliability Score
- 85%
- Arrive within 15 minutes
- 7 min early
- Average arrival delay
- 8.2%
- Cancelled
- 20 min early
- Median arrival delay
Based on 97 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
NK 1645 arrived on time 91% of the time on Saturdays and just 75% on Sundays. That gap is worth planning around.
Better than the FLL–SAT route average.
NK 1645 arrived on time 85% of the time, versus 76% across the FLL–SAT route.
Better than the Spirit Airlines network average.
NK 1645 arrived on time 85% of the time, versus 74% across the Spirit Airlines network.
The breakdown
- Mon85%(13 flights)
- Tue—(9 flights)
- Wed—(8 flights)
- Thu90%(19 flights)
- Fri85%(13 flights)
- Sat91%(11 flights)
- Sun75%(16 flights)
100%
Apr
Jan 89% → Apr 100% on time
| Month | On-time percentage | Flights |
|---|---|---|
| January 2026 | 89% | 18 |
| February 2026 | 79% | 19 |
| March 2026 | 80% | 30 |
| April 2026 | 100% | 12 |
- Departures on time
- 79%
- Diverted
- 0%
- Flights flown
- 89
- Months covered
- 6
Same route, other flights
Keep nerding
Based on 97 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.