Flight profile · American Airlines
AA1594
Miami (MIA) to St. Louis (STL) · scheduled 10:09 PM – 11:59 PM
How AA1594 performs
597 operations, 2023-11-05 to 2026-06-30.
AA1594 arrived on time 64.0% of the time, against 72.7% for all MIA → STL flights — this specific departure is 8.7 percentage points worse than the route as a whole. Against American Airlines’s own flights on this route it is 7.9 points worse.
Source: US DOT Bureau of Transportation Statistics · 597 operations between 2023-11-05 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| AA1594 | 64.0% | 0.84% | 0 min | 14.0% | 597 |
| American Airlines on MIA → STL | 71.8% | 1.08% | -4 min | 11.1% | 1,487 |
| All MIA → STL flights | 72.7% | 0.83% | -3 min | 10.0% | 3,000 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-11-05 to 2026-06-30
Other routes AA1594 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.
| Route | Operated | Flights | On time |
|---|---|---|---|
| ORD→LGA Chicago to New York | 2025-11-02 – 2026-04-05 | 144 | 59.8% |
| LAX→ORD Los Angeles to Chicago | 2024-04-04 – 2024-11-04 | 215 | 73.6% |
| ORD→PIT Chicago to Pittsburgh | 2024-05-06 – 2024-11-04 | 181 | 54.5% |
| OKC→DFW Oklahoma City to Dallas–Fort Worth | 2023-07-01 – 2023-11-04 | 109 | 61.1% |
| DFW→OKC Dallas–Fort Worth to Oklahoma City | 2023-07-01 – 2023-11-04 | 81 | — |
Because the same number has served different journeys, the statistics above describe only the route AA1594 currently operates. Blending them would produce an average of two different flights.
When it goes wrong
The average describes a usual day. This is the day that ruins a connection.
83 min late
against a median of 0 min early
AA1594 is a flight whose average understates its risk: a typical day arrives 0 min early, but the worst tenth of days are 83 minutes worse than that. If the day has something unmissable in it, the median is the wrong number to plan against.
Percentiles over 597 operations. Cancelled and diverted flights have no arrival time and are counted separately rather than as very late arrivals.
Why AA1594 runs late
Where US DOT attributed the delay minutes on this flight.
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding, fuelling — within the carrier’s control
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for AA1594 on MIA → STL. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Data and methodology
Calculated by FlyerIntel from 597 records of AA1594 operating MIA → STL, 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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