UA4430 GRR → ORD
United Airlines · Grand Rapids, MI to Chicago, IL · 83 flights observed, 2025-07-01 to 2026-04-25 · 137 mi
UA4430 covers more than one route in the data window — the stats below are for GRR → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
36%
Median delay
+26 min
90th percentile
+146 min
Cancellation rate
4%
How often is UA4430 on time?
Across 83 flights on GRR → ORD from 2025-07-01 to 2026-04-25, UA4430 arrived within 15 minutes of schedule 36% of the time. The median arrival delay was +26 min, and the worst 10% of flights arrived +146 min or later. 4% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 29 | 36% |
| 16-30 min | 15 | 19% |
| 31-60 min | 14 | 18% |
| 61-120 min | 10 | 13% |
| 2+ hrs | 12 | 15% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 29 | 21% | +65 min |
| 2025-08 | 16 | 44% | +76 min |
| 2025-09 | 6 | 83% | -7 min |
| 2025-10 | 25 | 32% | +39 min |
| 2026-04 | 4 | 75% | +4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 10 | 10% |
| Tue | 10 | 70% |
| Wed | 11 | 36% |
| Thu | 12 | 33% |
| Fri | 11 | 18% |
| Sat | 15 | 53% |
| Sun | 11 | 27% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…