UA4400 ORD → GRB
United Airlines · Chicago, IL to Green Bay, WI · 48 flights observed, 2026-01-06 to 2026-03-04 · 173 mi
UA4400 covers more than one route in the data window — the stats below are for ORD → GRB, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
68%
Median delay
+3 min
90th percentile
+53 min
Cancellation rate
2%
How often is UA4400 on time?
Across 48 flights on ORD → GRB from 2026-01-06 to 2026-03-04, UA4400 arrived within 15 minutes of schedule 68% of the time. The median arrival delay was +3 min, and the worst 10% of flights arrived +53 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 | 32 | 68% |
| 16-30 min | 5 | 11% |
| 31-60 min | 6 | 13% |
| 61-120 min | 2 | 4% |
| 2+ hrs | 2 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 25 | 64% | +24 min |
| 2026-02 | 18 | 67% | +8 min |
| 2026-03 | 4 | 100% | +3 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 6 | 50% |
| Tue | 9 | 78% |
| Wed | 9 | 67% |
| Thu | 5 | 60% |
| Fri | 4 | 75% |
| Sat | 8 | 88% |
| Sun | 6 | 50% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…