Flight profile · American Airlines

AA858

St. Louis (STL) to Charlotte (CLT) · scheduled 7:00 AM – 10:15 AM

FlyerIntel does not track flights in the air. This page describes how AA858 has historically performed, which is a different and more useful question when you are deciding what to book. For today’s status, check with American Airlines.

How AA858 performs

610 operations, 2023-07-01 to 2026-06-30.

On-time arrivals
87.4%
526 of 602 completed
Cancellation rate
1.31%
8 cancelled
Median arrival delay
-10 min
Average 12.1 min
Severe delays
4.8%
Arrived 60+ minutes late
Delay when late
170 min
Average, when 15+ min late
Departure punctuality
87.9%
Left the gate on time

AA858 arrived on time 87.4% of the time, against 80.7% for all STLCLT flights — this specific departure is 6.6 percentage points better than the route as a whole. Against American Airlines’s own flights on this route it is 5.2 points better.

Source: US DOT Bureau of Transportation Statistics · 610 operations between 2023-07-01 to 2026-06-30

Against the rest of the route

On timeCancelledMedian delaySevereFlights
AA85887.4%1.31%-10 min4.8%610
American Airlines on STLCLT82.1%1.23%-9 min7.5%4,781
All STLCLT flights80.7%1.15%-7 min7.3%5,850

Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30

Other routes AA858 has flown

A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.

RouteOperatedFlightsOn time
ORDGSP Chicago to Greenville/Greer/Spartanburg2026-02-122026-03-0513
MCOBOS Orlando to Boston2026-02-132026-02-224
FATPHX Fresno to Phoenix2026-01-062026-02-1031
PSPORD Palm Springs to Chicago2025-11-022026-01-0564
ORDPSP Chicago to Palm Springs2025-11-202025-12-1724
BOSDFW Boston to Dallas–Fort Worth2023-11-052025-02-1211984.5%
SATPHX San Antonio to Phoenix2024-01-082024-04-0386
CLTDTW Charlotte to Detroit2023-12-202024-01-0617
DTWCLT Detroit to Charlotte2023-12-222023-12-221

Because the same number has served different journeys, the statistics above describe only the route AA858 currently operates. Blending them would produce an average of two different flights.

Data and methodology

Calculated by FlyerIntel from 610 records of AA858 operating STLCLT, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.

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