Flight OddsUA4909 HSV → IAH
United Airlines · Huntsville, AL to Houston, TX · 358 flights observed, 2025-07-01 to 2026-06-30 · 595 mi
UA4909 covers more than one route in the data window — the stats below are for HSV → IAH, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
87%
Median delay
-17 min
90th percentile
+22 min
Cancellation rate
0%
How often is UA4909 on time?
Across 358 flights on HSV → IAH from 2025-07-01 to 2026-06-30, UA4909 arrived within 15 minutes of schedule 87% of the time. The median arrival delay was -17 min, and the worst 10% of flights arrived +22 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 309 | 87% |
| 16-30 min | 19 | 5% |
| 31-60 min | 5 | 1% |
| 61-120 min | 7 | 2% |
| 2+ hrs | 17 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 77% | +15 min |
| 2025-08 | 31 | 71% | +8 min |
| 2025-09 | 29 | 97% | -21 min |
| 2025-10 | 31 | 87% | -2 min |
| 2025-11 | 30 | 97% | -17 min |
| 2025-12 | 31 | 77% | +7 min |
| 2026-01 | 31 | 97% | -9 min |
| 2026-02 | 23 | 83% | -4 min |
| 2026-03 | 30 | 87% | +5 min |
| 2026-04 | 30 | 97% | -14 min |
| 2026-05 | 31 | 87% | +15 min |
| 2026-06 | 29 | 83% | +25 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 52 | 83% |
| Tue | 53 | 94% |
| Wed | 49 | 94% |
| Thu | 51 | 92% |
| Fri | 51 | 84% |
| Sat | 49 | 80% |
| Sun | 52 | 79% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…