AA4966 ORD → GRR

American Airlines · Chicago, IL to Grand Rapids, MI · 36 flights observed, 2025-08-06 to 2025-11-01 · 137 mi

This flight has been getting more reliable recently — 2025-10's on-time rate (86%) is well above the 48% average from earlier months.

AA4966 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
54%
Median delay
+2 min
90th percentile
+80 min
Cancellation rate
3%

How often is AA4966 on time?

Across 36 flights on ORD → GRR from 2025-08-06 to 2025-11-01, AA4966 arrived within 15 minutes of schedule 54% of the time. The median arrival delay was +2 min, and the worst 10% of flights arrived +80 min or later. 3% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time1954%
16-30 min39%
31-60 min823%
61-120 min411%
2+ hrs13%

Performance by month

MonthFlightsOn-timeAvg delay
2025-082548%+24 min
2025-09250%+19 min
2025-10786%+15 min
2025-1110%+18 min

Performance by day of week

DayFlightsOn-time
Mon425%
Tue560%
Wed560%
Thu560%
Fri560%
Sat650%
Sun560%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…