Flight OddsSTL → IAH United Airlines
United Airlines · St. Louis, MO to Houston, TX · 1,232 flights, 2025-07-01 to 2026-06-30 · aggregated across 36 flight numbers
On-time arrival
83%
Median delay
-13 min
90th percentile
+30 min
Cancellation rate
1%
How on-time is United Airlines from STL to IAH?
Across every United Airlines flight number on STL → IAH (1,232 flights, 2025-07-01 to 2026-06-30), 83% arrived within 15 minutes of schedule. Median arrival delay -13 min; the worst 10% ran +30 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 1,016 | 83% |
| 16-30 min | 82 | 7% |
| 31-60 min | 59 | 5% |
| 61-120 min | 33 | 3% |
| 2+ hrs | 29 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 105 | 79% | +18 min |
| 2025-08 | 110 | 86% | -3 min |
| 2025-09 | 114 | 94% | -9 min |
| 2025-10 | 109 | 84% | -4 min |
| 2025-11 | 111 | 88% | -5 min |
| 2025-12 | 91 | 81% | +7 min |
| 2026-01 | 84 | 81% | -7 min |
| 2026-02 | 81 | 93% | -18 min |
| 2026-03 | 91 | 81% | -2 min |
| 2026-04 | 90 | 83% | +0 min |
| 2026-05 | 106 | 75% | +12 min |
| 2026-06 | 127 | 76% | +7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 189 | 80% |
| Tue | 169 | 88% |
| Wed | 168 | 88% |
| Thu | 186 | 88% |
| Fri | 188 | 79% |
| Sat | 152 | 80% |
| Sun | 167 | 81% |
UA flight numbers on STL → IAH
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…