AA3515 MSO → ORD

American Airlines · Missoula, MT to Chicago, IL · 28 flights observed, 2025-09-08 to 2025-10-05 · 1,332 mi

This flight has been getting more reliable recently — 2025-10's on-time rate (100%) is well above the 64% average from earlier months.

AA3515 covers more than one route in the data window — the stats below are for MSO → ORD, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
70%
Median delay
+5 min
90th percentile
+29 min
Cancellation rate
0%

How often is AA3515 on time?

Across 28 flights on MSO → ORD from 2025-09-08 to 2025-10-05, AA3515 arrived within 15 minutes of schedule 70% of the time. The median arrival delay was +5 min, and the worst 10% of flights arrived +29 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1970%
16-30 min622%
31-60 min00%
61-120 min27%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2025-092264%+12 min
2025-105100%0 min

Performance by day of week

DayFlightsOn-time
Mon475%
Tue450%
Wed4100%
Thu475%
Fri475%
Sat367%
Sun450%

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