AA4509 MCI → ORD

American Airlines · Kansas City, MO to Chicago, IL · 19 flights observed, 2025-12-18 to 2026-01-05 · 403 mi

This flight is usually on time, but has a real long-delay tail — typical (median) delay is -19 min, while the worst 10% run +57 min or later.

AA4509 covers more than one route in the data window — the stats below are for MCI → ORD, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
84%
Median delay
-19 min
90th percentile
+57 min
Cancellation rate
0%

How often is AA4509 on time?

Across 19 flights on MCI → ORD from 2025-12-18 to 2026-01-05, AA4509 arrived within 15 minutes of schedule 84% of the time. The median arrival delay was -19 min, and the worst 10% of flights arrived +57 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1684%
16-30 min00%
31-60 min15%
61-120 min15%
2+ hrs15%

Performance by month

MonthFlightsOn-timeAvg delay
2025-121479%+5 min
2026-015100%-19 min

Performance by day of week

DayFlightsOn-time
Mon3100%
Tue250%
Wed250%
Thu3100%
Fri3100%
Sat3100%
Sun367%

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