Flight profile · American Airlines
AA400
Miami (MIA) to Charlotte (CLT) · scheduled 5:30 PM – 7:45 PM
How AA400 performs
338 operations, 2024-02-15 to 2026-06-30.
AA400 arrived on time 60.7% of the time, against 76.1% for all MIA → CLT flights — this specific departure is 15.4 percentage points worse than the route as a whole. Against American Airlines’s own flights on this route it is 14.7 points worse.
Source: US DOT Bureau of Transportation Statistics · 338 operations between 2024-02-15 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| AA400 | 60.7% | 1.18% | 4 min | 16.8% | 338 |
| American Airlines on MIA → CLT | 75.4% | 1.20% | -4 min | 9.1% | 9,640 |
| All MIA → CLT flights | 76.1% | 1.35% | -5 min | 8.9% | 10,985 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-02-15 to 2026-06-30
Other routes AA400 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 |
|---|---|---|---|
| CLT→MIA Charlotte to Miami | 2025-10-06 – 2025-11-01 | 27 | — |
| SFO→PHL San Francisco to Philadelphia | 2023-11-05 – 2025-02-10 | 79 | — |
| PHL→BUF Philadelphia to Buffalo | 2024-10-07 – 2024-11-04 | 27 | — |
| PWM→CLT Portland to Charlotte | 2024-06-05 – 2024-09-03 | 90 | 87.3% |
| ORD→PHX Chicago to Phoenix | 2024-05-06 – 2024-06-04 | 29 | — |
| DFW→SLC Dallas–Fort Worth to Salt Lake City | 2024-01-08 – 2024-02-14 | 38 | — |
| SFO→CLT San Francisco to Charlotte | 2023-12-20 – 2024-01-07 | 19 | — |
| CLT→LGA Charlotte to New York | 2023-12-05 – 2023-12-19 | 13 | — |
| DCA→CLT Washington to Charlotte | 2023-09-07 – 2023-11-04 | 59 | — |
| DFW→IAH Dallas–Fort Worth to Houston | 2023-07-01 – 2023-09-05 | 65 | — |
Because the same number has served different journeys, the statistics above describe only the route AA400 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.
94 min late
against a median of 4 min late
AA400 is a flight whose average understates its risk: a typical day arrives 4 min late, but the worst tenth of days are 90 minutes worse than that. If the day has something unmissable in it, the median is the wrong number to plan against.
Percentiles over 338 operations. Cancelled and diverted flights have no arrival time and are counted separately rather than as very late arrivals.
Why AA400 runs late
Where US DOT attributed the delay minutes on this flight.
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
crew, maintenance, boarding, fuelling — within the carrier’s 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 AA400 on MIA → CLT. 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 338 records of AA400 operating MIA → CLT, 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.
Full methodology · Report a problem
Analysis last recomputed