AA3904 ORD → SAT

American Airlines · Chicago, IL to San Antonio, TX · 24 flights observed, 2026-02-12 to 2026-03-07 · 1,041 mi

This flight has been getting less reliable recently — 2026-03's on-time rate (43%) is well below the 76% average from earlier months.

AA3904 covers more than one route in the data window — the stats below are for ORD → SAT, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
67%
Median delay
+3 min
90th percentile
+85 min
Cancellation rate
0%

How often is AA3904 on time?

Across 24 flights on ORD → SAT from 2026-02-12 to 2026-03-07, AA3904 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was +3 min, and the worst 10% of flights arrived +85 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1667%
16-30 min313%
31-60 min14%
61-120 min417%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2026-021776%+4 min
2026-03743%+28 min

Performance by day of week

DayFlightsOn-time
Mon3100%
Tue3100%
Wed333%
Thu475%
Fri450%
Sat450%
Sun367%

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