Flight Reliability
NK 2139 · Spirit Airlines
Fort Lauderdale → Atlanta (FLL–ATL)
83
Pretty Reliable
WanderNerd Reliability Score
- 80%
- Arrive within 15 minutes
- 4 min
- Average arrival delay
- 1.4%
- Cancelled
- 12 min early
- Median arrival delay
Based on 72 historical flights. Data through May 2026.
What the data says
Friday is doing you no favors.
NK 2139 arrived on time 91% of the time on Mondays and just 70% on Fridays. That gap is worth planning around.
Better than the FLL–ATL route average.
NK 2139 arrived on time 80% of the time, versus 72% across the FLL–ATL route.
A bit ahead of the Spirit Airlines network.
NK 2139 arrived on time 80% of the time, versus 74% across the Spirit Airlines network.
The breakdown
- Mon91%(11 flights)
- Tue82%(11 flights)
- Wed83%(12 flights)
- Thu—(8 flights)
- Fri70%(10 flights)
- Sat83%(12 flights)
- Sun—(7 flights)
86%
Oct
Aug 68% → Oct 86% on time
| Month | On-time percentage | Flights |
|---|---|---|
| August 2025 | 68% | 19 |
| September 2025 | 83% | 30 |
| October 2025 | 86% | 21 |
- Departures on time
- 82%
- Diverted
- 0%
- Flights flown
- 71
- Months covered
- 4
Same route, other flights
Keep nerding
Based on 72 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.