AA3397 DTW → ORD

American Airlines · Detroit, MI to Chicago, IL · 30 flights observed, 2026-03-08 to 2026-04-06 · 235 mi

This flight has been getting less reliable recently — 2026-04's on-time rate (40%) is well below the 91% average from earlier months.

AA3397 covers more than one route in the data window — the stats below are for DTW → ORD, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
82%
Median delay
-11 min
90th percentile
+49 min
Cancellation rate
7%

How often is AA3397 on time?

Across 30 flights on DTW → ORD from 2026-03-08 to 2026-04-06, AA3397 arrived within 15 minutes of schedule 82% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +49 min or later. 7% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2382%
16-30 min14%
31-60 min14%
61-120 min27%
2+ hrs14%

Performance by month

MonthFlightsOn-timeAvg delay
2026-032391%+60 min
2026-04540%+21 min

Performance by day of week

DayFlightsOn-time
Mon5100%
Tue4100%
Wed367%
Thu450%
Fri367%
Sat475%
Sun5100%

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