UA4456 ORD → ATW
United Airlines · Chicago, IL to Appleton, WI · 144 flights observed, 2025-08-19 to 2026-05-31 · 160 mi
UA4456 covers more than one route in the data window — the stats below are for ORD → ATW, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
59%
Median delay
+4 min
90th percentile
+101 min
Cancellation rate
2%
How often is UA4456 on time?
Across 144 flights on ORD → ATW from 2025-08-19 to 2026-05-31, UA4456 arrived within 15 minutes of schedule 59% of the time. The median arrival delay was +4 min, and the worst 10% of flights arrived +101 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 | 82 | 59% |
| 16-30 min | 16 | 11% |
| 31-60 min | 19 | 14% |
| 61-120 min | 11 | 8% |
| 2+ hrs | 12 | 9% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 13 | 85% | -4 min |
| 2025-09 | 23 | 65% | +8 min |
| 2025-12 | 15 | 47% | +60 min |
| 2026-01 | 26 | 46% | +60 min |
| 2026-02 | 27 | 74% | +5 min |
| 2026-03 | 25 | 32% | +151 min |
| 2026-05 | 11 | 82% | -14 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 19 | 74% |
| Tue | 21 | 57% |
| Wed | 21 | 57% |
| Thu | 20 | 65% |
| Fri | 21 | 43% |
| Sat | 20 | 55% |
| Sun | 18 | 61% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…