Flight OddsUA4405 STL → ORD
United Airlines · St. Louis, MO to Chicago, IL · 40 flights observed, 2025-12-18 to 2026-03-04 · 258 mi
UA4405 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
68%
Median delay
-13 min
90th percentile
+107 min
Cancellation rate
0%
How often is UA4405 on time?
Across 40 flights on STL → ORD from 2025-12-18 to 2026-03-04, UA4405 arrived within 15 minutes of schedule 68% of the time. The median arrival delay was -13 min, and the worst 10% of flights arrived +107 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 27 | 68% |
| 16-30 min | 4 | 10% |
| 31-60 min | 1 | 3% |
| 61-120 min | 5 | 13% |
| 2+ hrs | 3 | 8% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 14 | 64% | +29 min |
| 2026-01 | 5 | 20% | +77 min |
| 2026-02 | 17 | 88% | -2 min |
| 2026-03 | 4 | 50% | +11 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 6 | 50% |
| Tue | 5 | 80% |
| Wed | 5 | 80% |
| Thu | 6 | 67% |
| Fri | 6 | 100% |
| Sat | 6 | 67% |
| 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…