Flight OddsUA4395 STL → ORD
United Airlines · St. Louis, MO to Chicago, IL · 292 flights observed, 2025-08-19 to 2026-06-30 · 258 mi
UA4395 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
70%
Median delay
-1 min
90th percentile
+95 min
Cancellation rate
3%
How often is UA4395 on time?
Across 292 flights on STL → ORD from 2025-08-19 to 2026-06-30, UA4395 arrived within 15 minutes of schedule 70% of the time. The median arrival delay was -1 min, and the worst 10% of flights arrived +95 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 | 198 | 70% |
| 16-30 min | 23 | 8% |
| 31-60 min | 26 | 9% |
| 61-120 min | 14 | 5% |
| 2+ hrs | 22 | 8% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 13 | 69% | +15 min |
| 2025-09 | 30 | 77% | +5 min |
| 2025-10 | 31 | 55% | +69 min |
| 2025-11 | 28 | 75% | +7 min |
| 2025-12 | 16 | 63% | +36 min |
| 2026-01 | 24 | 63% | +26 min |
| 2026-02 | 27 | 70% | +17 min |
| 2026-03 | 30 | 67% | +46 min |
| 2026-04 | 26 | 62% | +33 min |
| 2026-05 | 31 | 71% | +12 min |
| 2026-06 | 27 | 96% | -7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 39 | 69% |
| Tue | 44 | 75% |
| Wed | 41 | 63% |
| Thu | 39 | 72% |
| Fri | 42 | 67% |
| Sat | 38 | 63% |
| Sun | 40 | 80% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…