AA2121 MCI → ORD

American Airlines · Kansas City, MO to Chicago, IL · 35 flights observed, 2025-07-01 to 2025-08-05 · 403 mi

This flight has been getting more reliable recently — 2025-08's on-time rate (100%) is well above the 71% average from earlier months.

AA2121 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
76%
Median delay
-8 min
90th percentile
+34 min
Cancellation rate
6%

How often is AA2121 on time?

Across 35 flights on MCI → ORD from 2025-07-01 to 2025-08-05, AA2121 arrived within 15 minutes of schedule 76% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +34 min or later. 6% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2576%
16-30 min39%
31-60 min39%
61-120 min00%
2+ hrs26%

Performance by month

MonthFlightsOn-timeAvg delay
2025-072871%+18 min
2025-085100%-13 min

Performance by day of week

DayFlightsOn-time
Mon450%
Tue683%
Wed580%
Thu475%
Fri580%
Sat4100%
Sun560%

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