Flight Reliability
NK 574 · Spirit Airlines
Philadelphia → Fort Lauderdale (PHL–FLL)87% of its flights flew this route. The rest (DFW–ATL) are included in these numbers.
36
Bring Snacks
WanderNerd Reliability Score
- 75%
- Arrive within 15 minutes
- 9 min
- Average arrival delay
- 11.8%
- Cancelled
- 3 min early
- Median arrival delay
Based on 110 historical flights. Data through May 2026.
What the data says
The 6–9 AM departure wins.
NK 574 departing between 6–9 AM arrived on time 77% of the time, versus 64% between 9 AM–12 PM.
Sunday scaries are real for this one.
NK 574 arrived on time 92% of the time on Tuesdays and just 62% on Sundays. That gap is worth planning around.
Keep a backup plan handy.
NK 574 was cancelled 11.8% of the time. Typical for U.S. flights is around 1–2%.
The breakdown
- Mon62%(13 flights)
- Tue92%(13 flights)
- Wed62%(13 flights)
- Thu87%(15 flights)
- Fri86%(14 flights)
- Sat75%(16 flights)
- Sun62%(13 flights)
- 6–9 AM77%(83 flights)
- 9 AM–12 PM64%(14 flights)
73%
Apr
Nov 55% → Apr 73% on time
| Month | On-time percentage | Flights |
|---|---|---|
| November 2025 | 55% | 11 |
| January 2026 | 76% | 21 |
| February 2026 | 92% | 24 |
| March 2026 | 67% | 27 |
| April 2026 | 73% | 11 |
- Departures on time
- 84%
- Diverted
- 0%
- Flights flown
- 97
- Months covered
- 6
Same route, other flights
Keep nerding
Based on 110 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.