UA4645 ATW → ORD
United Airlines · Appleton, WI to Chicago, IL · 48 flights observed, 2025-09-25 to 2026-01-05 · 160 mi
UA4645 covers more than one route in the data window — the stats below are for ATW → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
70%
Median delay
-3 min
90th percentile
+111 min
Cancellation rate
2%
How often is UA4645 on time?
Across 48 flights on ATW → ORD from 2025-09-25 to 2026-01-05, UA4645 arrived within 15 minutes of schedule 70% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +111 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 | 33 | 70% |
| 16-30 min | 3 | 6% |
| 31-60 min | 3 | 6% |
| 61-120 min | 4 | 9% |
| 2+ hrs | 4 | 9% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-09 | 6 | 83% | -8 min |
| 2025-10 | 25 | 80% | +20 min |
| 2025-12 | 11 | 55% | +42 min |
| 2026-01 | 5 | 40% | +136 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 43% |
| Tue | 6 | 50% |
| Wed | 5 | 80% |
| Thu | 6 | 83% |
| Fri | 8 | 88% |
| Sat | 8 | 75% |
| Sun | 7 | 71% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…