Flight OddsUA4566 SCE → ORD
United Airlines · State College, PA to Chicago, IL · 325 flights observed, 2025-07-01 to 2026-06-30 · 528 mi
UA4566 covers more than one route in the data window — the stats below are for SCE → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
76%
Median delay
-9 min
90th percentile
+95 min
Cancellation rate
2%
How often is UA4566 on time?
Across 325 flights on SCE → ORD from 2025-07-01 to 2026-06-30, UA4566 arrived within 15 minutes of schedule 76% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +95 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 241 | 76% |
| 16-30 min | 17 | 5% |
| 31-60 min | 16 | 5% |
| 61-120 min | 17 | 5% |
| 2+ hrs | 26 | 8% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 74% | +16 min |
| 2025-08 | 30 | 83% | +4 min |
| 2025-09 | 29 | 86% | -10 min |
| 2025-10 | 30 | 83% | +10 min |
| 2025-11 | 25 | 76% | +11 min |
| 2025-12 | 17 | 53% | +48 min |
| 2026-01 | 16 | 63% | +44 min |
| 2026-02 | 24 | 83% | -9 min |
| 2026-03 | 30 | 77% | +48 min |
| 2026-04 | 29 | 69% | +38 min |
| 2026-05 | 28 | 64% | +32 min |
| 2026-06 | 28 | 86% | +2 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 48 | 77% |
| Tue | 42 | 79% |
| Wed | 44 | 73% |
| Thu | 46 | 80% |
| Fri | 44 | 84% |
| Sat | 48 | 69% |
| Sun | 45 | 71% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…