AA4576 ORD → STL

American Airlines · Chicago, IL to St. Louis, MO · 36 flights observed, 2025-11-02 to 2026-01-05 · 258 mi

This flight has been getting less reliable recently — 2025-12's on-time rate (43%) is well below the 71% average from earlier months.

AA4576 covers more than one route in the data window — the stats below are for ORD → STL, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
59%
Median delay
+6 min
90th percentile
+117 min
Cancellation rate
6%

How often is AA4576 on time?

Across 36 flights on ORD → STL from 2025-11-02 to 2026-01-05, AA4576 arrived within 15 minutes of schedule 59% of the time. The median arrival delay was +6 min, and the worst 10% of flights arrived +117 min or later. 6% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2059%
16-30 min13%
31-60 min412%
61-120 min515%
2+ hrs412%

Performance by month

MonthFlightsOn-timeAvg delay
2025-111771%+49 min
2025-121443%+44 min
2026-01367%+5 min

Performance by day of week

DayFlightsOn-time
Mon875%
Tue333%
Wed250%
Thu757%
Fri250%
Sat2100%
Sun1050%

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