Flight Reliability
UA 6334 · United Airlines
Houston → Oklahoma City (IAH–OKC)
94
Nerd Approved
WanderNerd Reliability Score
- 89%
- Arrive within 15 minutes
- 4 min early
- Average arrival delay
- 0.8%
- Cancelled
- 11 min early
- Median arrival delay
Based on 126 historical flights. Data through May 2026.
What the data says
The 3–6 PM departure wins.
UA 6334 departing between 3–6 PM arrived on time 95% of the time, versus 81% between 6–9 PM.
Thursdays have been rough.
UA 6334 arrived on time 100% of the time on Wednesdays and just 79% on Thursdays. That gap is worth planning around.
A bit ahead of the IAH–OKC route.
UA 6334 arrived on time 89% of the time, versus 82% across the IAH–OKC route.
Better than the United Airlines network average.
UA 6334 arrived on time 89% of the time, versus 79% across the United Airlines network.
The breakdown
- Mon91%(21 flights)
- Tue95%(20 flights)
- Wed100%(18 flights)
- Thu79%(19 flights)
- Fri90%(19 flights)
- Sat—(8 flights)
- Sun80%(20 flights)
- 12–3 PM81%(16 flights)
- 3–6 PM95%(73 flights)
- 6–9 PM81%(36 flights)
92%
May
Nov 86% → May 92% on time
| Month | On-time percentage | Flights |
|---|---|---|
| November 2025 | 86% | 29 |
| December 2025 | 71% | 14 |
| February 2026 | 100% | 14 |
| April 2026 | 92% | 25 |
| May 2026 | 92% | 24 |
- Departures on time
- 87%
- Diverted
- 0%
- Flights flown
- 125
- Months covered
- 8
Same route, other flights
Keep nerding
Based on 126 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.