Flight Reliability
UA 4258 · United Airlines
Pensacola → Houston (PNS–IAH)94% of its flights flew this route. The rest (IAH–ICT, HRL–IAH) are included in these numbers.
94
Nerd Approved
WanderNerd Reliability Score
- 89%
- Arrive within 15 minutes
- 4 min early
- Average arrival delay
- 0.8%
- Cancelled
- 20 min early
- Median arrival delay
Based on 356 historical flights. Data through May 2026.
What the data says
Thursday is the weak spot.
UA 4258 arrived on time 96% of the time on Wednesdays. On Thursdays: 83%.
Better than the United Airlines network average.
UA 4258 arrived on time 89% of the time, versus 79% across the United Airlines network.
The breakdown
- Mon90%(52 flights)
- Tue93%(45 flights)
- Wed96%(50 flights)
- Thu83%(52 flights)
- Fri88%(51 flights)
- Sat84%(51 flights)
- Sun87%(52 flights)
- 3–6 AM—(1 flights)
- 9 AM–12 PM89%(352 flights)
77%
May
Jun 79% → May 77% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 79% | 29 |
| July 2025 | 94% | 31 |
| August 2025 | 94% | 31 |
| September 2025 | 96% | 26 |
| October 2025 | 90% | 31 |
| November 2025 | 93% | 29 |
| December 2025 | 86% | 28 |
| January 2026 | 70% | 30 |
| February 2026 | 100% | 27 |
| March 2026 | 90% | 31 |
| April 2026 | 97% | 30 |
| May 2026 | 77% | 30 |
- Departures on time
- 88%
- Diverted
- 0%
- Flights flown
- 353
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 356 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.