Flight OddsUA4390 GRB → ORD
United Airlines · Green Bay, WI to Chicago, IL · 28 flights observed, 2025-09-25 to 2025-10-25 · 173 mi
UA4390 covers more than one route in the data window — the stats below are for GRB → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
41%
Median delay
+22 min
90th percentile
+44 min
Cancellation rate
0%
How often is UA4390 on time?
Across 28 flights on GRB → ORD from 2025-09-25 to 2025-10-25, UA4390 arrived within 15 minutes of schedule 41% of the time. The median arrival delay was +22 min, and the worst 10% of flights arrived +44 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 11 | 41% |
| 16-30 min | 8 | 30% |
| 31-60 min | 7 | 26% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-09 | 6 | 83% | -3 min |
| 2025-10 | 21 | 29% | +28 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 50% |
| Tue | 4 | 50% |
| Wed | 3 | 0% |
| Thu | 5 | 40% |
| Fri | 5 | 20% |
| Sat | 5 | 60% |
| Sun | 1 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…