Flight OddsUA3528 STL → ORD
United Airlines · St. Louis, MO to Chicago, IL · 51 flights observed, 2025-12-18 to 2026-02-11 · 258 mi
UA3528 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
88%
Median delay
-16 min
90th percentile
+19 min
Cancellation rate
6%
How often is UA3528 on time?
Across 51 flights on STL → ORD from 2025-12-18 to 2026-02-11, UA3528 arrived within 15 minutes of schedule 88% of the time. The median arrival delay was -16 min, and the worst 10% of flights arrived +19 min or later. 6% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 42 | 88% |
| 16-30 min | 4 | 8% |
| 31-60 min | 1 | 2% |
| 61-120 min | 1 | 2% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 14 | 100% | -17 min |
| 2026-01 | 24 | 79% | -5 min |
| 2026-02 | 10 | 90% | -2 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 86% |
| Tue | 8 | 88% |
| Wed | 8 | 88% |
| Thu | 8 | 100% |
| Fri | 7 | 100% |
| Sat | 3 | 100% |
| Sun | 7 | 57% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…