AA4966 GRR → ORD
American Airlines · Grand Rapids, MI to Chicago, IL · 36 flights observed, 2025-08-06 to 2025-11-01 · 137 mi
AA4966 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
29%
Median delay
+26 min
90th percentile
+124 min
Cancellation rate
3%
How often is AA4966 on time?
Across 36 flights on GRR → ORD from 2025-08-06 to 2025-11-01, AA4966 arrived within 15 minutes of schedule 29% of the time. The median arrival delay was +26 min, and the worst 10% of flights arrived +124 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 10 | 29% |
| 16-30 min | 9 | 26% |
| 31-60 min | 6 | 17% |
| 61-120 min | 6 | 17% |
| 2+ hrs | 4 | 11% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 25 | 20% | +65 min |
| 2025-09 | 2 | 0% | +45 min |
| 2025-10 | 7 | 57% | +25 min |
| 2025-11 | 1 | 100% | +15 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 0% |
| Tue | 5 | 20% |
| Wed | 5 | 40% |
| Thu | 5 | 40% |
| Fri | 5 | 20% |
| Sat | 6 | 50% |
| Sun | 5 | 20% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…