Flight OddsUA4036 STL → IAH
United Airlines · St. Louis, MO to Houston, TX · 32 flights observed, 2026-01-06 to 2026-02-11 · 667 mi
UA4036 covers more than one route in the data window — the stats below are for STL → IAH, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
84%
Median delay
-17 min
90th percentile
+21 min
Cancellation rate
3%
How often is UA4036 on time?
Across 32 flights on STL → IAH from 2026-01-06 to 2026-02-11, UA4036 arrived within 15 minutes of schedule 84% of the time. The median arrival delay was -17 min, and the worst 10% of flights arrived +21 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 26 | 84% |
| 16-30 min | 2 | 6% |
| 31-60 min | 2 | 6% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 21 | 81% | +3 min |
| 2026-02 | 10 | 90% | -14 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 60% |
| Tue | 6 | 83% |
| Wed | 6 | 83% |
| Thu | 5 | 100% |
| Fri | 5 | 100% |
| Sat | No data | — |
| Sun | 4 | 75% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…