Flight Reliability
UA 4299 · United Airlines
Huntsville → Houston (HSV–IAH)91% of its flights flew this route. The rest (IAH–BTR, IAH–ELP) are included in these numbers.
84
Pretty Reliable
WanderNerd Reliability Score
- 81%
- Arrive within 15 minutes
- 2 min
- Average arrival delay
- 1.2%
- Cancelled
- 9 min early
- Median arrival delay
Based on 343 historical flights. Data through May 2026.
What the data says
The 6–9 AM departure wins.
UA 4299 departing between 6–9 AM arrived on time 82% of the time, versus 73% between 9 AM–12 PM.
Skip Thursday if you can.
UA 4299 arrived on time 87% of the time on Wednesdays. On Thursdays: 74%.
Ticking up lately.
UA 4299 arrived on time 80% of the time over the last three months in the data, compared with 76% in the three months before that.
The breakdown
- Mon81%(47 flights)
- Tue81%(48 flights)
- Wed87%(47 flights)
- Thu74%(49 flights)
- Fri79%(47 flights)
- Sat79%(52 flights)
- Sun86%(49 flights)
- 6–9 AM82%(308 flights)
- 9 AM–12 PM73%(11 flights)
- 6–9 PM75%(20 flights)
70%
May
Jun 83% → May 70% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 83% | 29 |
| July 2025 | 97% | 31 |
| August 2025 | 84% | 31 |
| September 2025 | 83% | 30 |
| October 2025 | 81% | 31 |
| November 2025 | 77% | 30 |
| December 2025 | 71% | 31 |
| January 2026 | 80% | 30 |
| February 2026 | 93% | 27 |
| March 2026 | 77% | 30 |
| May 2026 | 70% | 30 |
- Departures on time
- 86%
- Diverted
- 0%
- Flights flown
- 339
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 343 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.