Flight OddsUA4550 ORD → ATW
United Airlines · Chicago, IL to Appleton, WI · 172 flights observed, 2025-08-19 to 2026-02-10 · 160 mi
UA4550 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
+130 min
Cancellation rate
3%
How often is UA4550 on time?
Across 172 flights on ORD → ATW from 2025-08-19 to 2026-02-10, UA4550 arrived within 15 minutes of schedule 59% of the time. The median arrival delay was +4 min, and the worst 10% of flights arrived +130 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 | 98 | 59% |
| 16-30 min | 20 | 12% |
| 31-60 min | 16 | 10% |
| 61-120 min | 14 | 8% |
| 2+ hrs | 19 | 11% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 13 | 77% | +7 min |
| 2025-09 | 30 | 80% | -4 min |
| 2025-10 | 31 | 74% | +37 min |
| 2025-11 | 27 | 37% | +90 min |
| 2025-12 | 27 | 37% | +96 min |
| 2026-01 | 30 | 60% | +22 min |
| 2026-02 | 9 | 33% | +52 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 23 | 65% |
| Tue | 25 | 60% |
| Wed | 23 | 57% |
| Thu | 24 | 67% |
| Fri | 24 | 58% |
| Sat | 24 | 38% |
| Sun | 24 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…