Flight Reliability
NK 1259 · Spirit Airlines
Los Angeles → Houston (LAX–IAH)86% of its flights flew this route. The rest (DTW–PNS) are included in these numbers.
73
Usually Fine
WanderNerd Reliability Score
- 73%
- Arrive within 15 minutes
- 12 min
- Average arrival delay
- 1.8%
- Cancelled
- 2 min
- Median arrival delay
Based on 111 historical flights. Data through May 2026.
What the data says
The 12–3 PM departure wins.
NK 1259 departing between 12–3 PM arrived on time 80% of the time, versus 71% between 6–9 PM.
Sunday scaries are real for this one.
NK 1259 arrived on time 86% of the time on Mondays and just 58% on Sundays. That gap is worth planning around.
Lagging the LAX–IAH route.
NK 1259 arrived on time 73% of the time, versus 85% across the LAX–IAH route.
The breakdown
- Mon86%(14 flights)
- Tue85%(13 flights)
- Wed77%(13 flights)
- Thu68%(19 flights)
- Fri69%(13 flights)
- Sat78%(18 flights)
- Sun58%(19 flights)
- 9 AM–12 PM—(5 flights)
- 12–3 PM80%(10 flights)
- 6–9 PM71%(94 flights)
67%
Apr
Jul 80% → Apr 67% on time
| Month | On-time percentage | Flights |
|---|---|---|
| July 2025 | 80% | 10 |
| January 2026 | 79% | 24 |
| February 2026 | 70% | 27 |
| March 2026 | 68% | 31 |
| April 2026 | 67% | 12 |
- Departures on time
- 73%
- Diverted
- 0%
- Flights flown
- 109
- Months covered
- 6
Same route, other flights
Keep nerding
Based on 111 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.