AA3186 DCA → STL

American Airlines · Washington, DC to St. Louis, MO · 52 flights observed, 2025-08-06 to 2025-10-05 · 719 mi

This flight's reliability varies a lot by day of week — 88% on-time on Tuesdays vs. 50% on Sundays.

AA3186 covers more than one route in the data window — the stats below are for DCA → STL, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
73%
Median delay
+5 min
90th percentile
+64 min
Cancellation rate
2%

How often is AA3186 on time?

Across 52 flights on DCA → STL from 2025-08-06 to 2025-10-05, AA3186 arrived within 15 minutes of schedule 73% of the time. The median arrival delay was +5 min, and the worst 10% of flights arrived +64 min or later. 2% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time3773%
16-30 min36%
31-60 min48%
61-120 min36%
2+ hrs48%

Performance by month

MonthFlightsOn-timeAvg delay
2025-082176%+14 min
2025-092665%+40 min
2025-104100%+1 min

Performance by day of week

DayFlightsOn-time
Mon875%
Tue888%
Wed978%
Thu967%
Fri978%
SatNo data—
Sun850%

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