Flight OddsUA4438 GRR → ORD
United Airlines · Grand Rapids, MI to Chicago, IL · 12 flights observed, 2026-01-06 to 2026-02-11 · 137 mi
UA4438 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
83%
Median delay
-11 min
90th percentile
+61 min
Cancellation rate
0%
How often is UA4438 on time?
Across 12 flights on GRR → ORD from 2026-01-06 to 2026-02-11, UA4438 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +61 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 | 10 | 83% |
| 16-30 min | 0 | 0% |
| 31-60 min | 0 | 0% |
| 61-120 min | 1 | 8% |
| 2+ hrs | 1 | 8% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 8 | 75% | +15 min |
| 2026-02 | 4 | 100% | -14 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | No data | — |
| Tue | 6 | 83% |
| Wed | 6 | 83% |
| Thu | No data | — |
| Fri | No data | — |
| Sat | No data | — |
| Sun | No data | — |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…