Flight OddsUA3611 STL → ORD
United Airlines · St. Louis, MO to Chicago, IL · 76 flights observed, 2025-07-01 to 2025-12-01 · 258 mi
UA3611 covers more than one route in the data window — the stats below are for STL → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
74%
Median delay
-3 min
90th percentile
+50 min
Cancellation rate
5%
How often is UA3611 on time?
Across 76 flights on STL → ORD from 2025-07-01 to 2025-12-01, UA3611 arrived within 15 minutes of schedule 74% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +50 min or later. 5% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 53 | 74% |
| 16-30 min | 6 | 8% |
| 31-60 min | 6 | 8% |
| 61-120 min | 2 | 3% |
| 2+ hrs | 5 | 7% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 22 | 59% | +20 min |
| 2025-08 | 21 | 90% | -4 min |
| 2025-09 | 1 | 100% | -22 min |
| 2025-11 | 27 | 74% | +27 min |
| 2025-12 | 1 | 0% | +131 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 13 | 62% |
| Tue | 12 | 83% |
| Wed | 5 | 100% |
| Thu | 11 | 82% |
| Fri | 13 | 69% |
| Sat | 4 | 100% |
| Sun | 14 | 57% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…