Flight OddsUA4448 ORD → GRR
United Airlines · Chicago, IL to Grand Rapids, MI · 146 flights observed, 2025-08-19 to 2026-05-20 · 137 mi
UA4448 covers more than one route in the data window — the stats below are for ORD → GRR, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
72%
Median delay
-4 min
90th percentile
+61 min
Cancellation rate
1%
How often is UA4448 on time?
Across 146 flights on ORD → GRR from 2025-08-19 to 2026-05-20, UA4448 arrived within 15 minutes of schedule 72% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +61 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 103 | 72% |
| 16-30 min | 15 | 10% |
| 31-60 min | 10 | 7% |
| 61-120 min | 6 | 4% |
| 2+ hrs | 10 | 7% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 13 | 92% | -5 min |
| 2025-09 | 24 | 79% | +11 min |
| 2026-01 | 8 | 88% | -5 min |
| 2026-02 | 20 | 70% | +7 min |
| 2026-03 | 30 | 60% | +35 min |
| 2026-04 | 30 | 63% | +33 min |
| 2026-05 | 19 | 74% | +6 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 18 | 78% |
| Tue | 25 | 68% |
| Wed | 25 | 80% |
| Thu | 19 | 74% |
| Fri | 19 | 42% |
| Sat | 19 | 79% |
| Sun | 19 | 79% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…