Flight Reliability
NK 1253 · Spirit Airlines
Fort Lauderdale → Houston (FLL–IAH)91% of its flights flew this route. The rest (DTW–MKE) are included in these numbers.
- 55%
- Arrive within 15 minutes
- 29 min
- Average arrival delay
- 2.8%
- Cancelled
- 8 min
- Median arrival delay
Based on 106 historical flights. Data through May 2026.
What the data says
The late departure is the smart one here.
NK 1253 departing between 6–9 PM arrived on time 54% of the time, versus 25% between 3–6 PM.
Sunday scaries are real for this one.
NK 1253 arrived on time 64% of the time on Tuesdays and just 29% on Sundays. That gap is worth planning around.
Well behind the FLL–IAH route.
NK 1253 arrived on time 55% of the time, versus 82% across the FLL–IAH route.
Well behind the Spirit Airlines network.
NK 1253 arrived on time 55% of the time, versus 74% across the Spirit Airlines network.
The breakdown
- Mon53%(19 flights)
- Tue64%(14 flights)
- Wed58%(12 flights)
- Thu64%(14 flights)
- Fri61%(18 flights)
- Sat55%(11 flights)
- Sun29%(14 flights)
- 6–9 AM—(9 flights)
- 3–6 PM25%(12 flights)
- 6–9 PM54%(81 flights)
Jan 67% → Apr 39% on time
| Month | On-time percentage | Flights |
|---|---|---|
| January 2026 | 67% | 24 |
| February 2026 | 58% | 26 |
| March 2026 | 37% | 30 |
| April 2026 | 39% | 13 |
- Departures on time
- 50%
- Diverted
- 0.9%
- Flights flown
- 102
- Months covered
- 6
Same route, other flights
Keep nerding
Based on 106 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.