AA851 IND → ORD

American Airlines · Indianapolis, IN to Chicago, IL · 41 flights observed, 2026-05-21 to 2026-06-30 · 177 mi

This flight is usually on time, but has a real long-delay tail — typical (median) delay is -17 min, while the worst 10% run +82 min or later.

AA851 covers more than one route in the data window — the stats below are for IND → ORD, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
85%
Median delay
-17 min
90th percentile
+82 min
Cancellation rate
0%

How often is AA851 on time?

Across 41 flights on IND → ORD from 2026-05-21 to 2026-06-30, AA851 arrived within 15 minutes of schedule 85% of the time. The median arrival delay was -17 min, and the worst 10% of flights arrived +82 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time3585%
16-30 min00%
31-60 min00%
61-120 min410%
2+ hrs25%

Performance by month

MonthFlightsOn-timeAvg delay
2026-051182%+4 min
2026-063087%+2 min

Performance by day of week

DayFlightsOn-time
Mon683%
Tue683%
Wed580%
Thu683%
Fri683%
Sat6100%
Sun683%

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