Flight OddsUA4498 STL → ORD
United Airlines · St. Louis, MO to Chicago, IL · 36 flights observed, 2025-10-26 to 2025-12-01 · 258 mi
UA4498 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
67%
Median delay
-11 min
90th percentile
+53 min
Cancellation rate
8%
How often is UA4498 on time?
Across 36 flights on STL → ORD from 2025-10-26 to 2025-12-01, UA4498 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +53 min or later. 8% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 22 | 67% |
| 16-30 min | 2 | 6% |
| 31-60 min | 6 | 18% |
| 61-120 min | 1 | 3% |
| 2+ hrs | 2 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 6 | 100% | -7 min |
| 2025-11 | 27 | 59% | +54 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 60% |
| Tue | 4 | 100% |
| Wed | 5 | 80% |
| Thu | 4 | 100% |
| Fri | 5 | 40% |
| Sat | 4 | 75% |
| Sun | 6 | 33% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…