AA3573 ORD → STL

American Airlines · Chicago, IL to St. Louis, MO · 54 flights observed, 2026-02-12 to 2026-04-06 · 258 mi

This flight's reliability varies a lot by day of week — 75% on-time on Mondays vs. 29% on Tuesdays.

AA3573 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
57%
Median delay
+4 min
90th percentile
+88 min
Cancellation rate
2%

How often is AA3573 on time?

Across 54 flights on ORD → STL from 2026-02-12 to 2026-04-06, AA3573 arrived within 15 minutes of schedule 57% of the time. The median arrival delay was +4 min, and the worst 10% of flights arrived +88 min or later. 2% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time3057%
16-30 min713%
31-60 min917%
61-120 min611%
2+ hrs12%

Performance by month

MonthFlightsOn-timeAvg delay
2026-021753%+20 min
2026-033158%+22 min
2026-04560%+7 min

Performance by day of week

DayFlightsOn-time
Mon875%
Tue729%
Wed771%
Thu743%
Fri838%
Sat875%
Sun863%

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