Flight Reliability
UA 4956 · United Airlines
Pensacola → Houston (PNS–IAH)
92
Nerd Approved
WanderNerd Reliability Score
- 88%
- Arrive within 15 minutes
- 2 min
- Average arrival delay
- 0.8%
- Cancelled
- 16 min early
- Median arrival delay
Based on 130 historical flights. Data through May 2026.
What the data says
Friday is doing you no favors.
UA 4956 arrived on time 100% of the time on Wednesdays and just 80% on Fridays. That gap is worth planning around.
Better than the United Airlines network average.
UA 4956 arrived on time 88% of the time, versus 79% across the United Airlines network.
The breakdown
- Mon80%(20 flights)
- Tue88%(16 flights)
- Wed100%(16 flights)
- Thu89%(18 flights)
- Fri80%(20 flights)
- Sat90%(20 flights)
- Sun90%(19 flights)
86%
Dec
Aug 69% → Dec 86% on time
| Month | On-time percentage | Flights |
|---|---|---|
| August 2025 | 69% | 13 |
| September 2025 | 93% | 30 |
| October 2025 | 93% | 29 |
| November 2025 | 83% | 23 |
| December 2025 | 86% | 29 |
- Departures on time
- 87%
- Diverted
- 0%
- Flights flown
- 129
- Months covered
- 6
Same route, other flights
Keep nerding
Based on 130 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.