Flight profile · American Airlines
AA581
Miami (MIA) to Chicago (ORD) · scheduled 6:35 AM – 9:04 AM
How AA581 performs
561 operations, 2023-11-05 to 2026-06-30.
AA581 arrived on time 88.2% of the time, against 74.6% for all MIA → ORD flights — this specific departure is 13.6 percentage points better than the route as a whole. Against American Airlines’s own flights on this route it is 12.8 points better.
Source: US DOT Bureau of Transportation Statistics · 561 operations between 2023-11-05 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| AA581 | 88.2% | 0.71% | -10 min | 3.1% | 561 |
| American Airlines on MIA → ORD | 75.4% | 1.21% | -7 min | 9.0% | 8,788 |
| All MIA → ORD flights | 74.6% | 1.28% | -6 min | 9.5% | 13,297 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-11-05 to 2026-06-30
Other routes AA581 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.
Because the same number has served different journeys, the statistics above describe only the route AA581 currently operates. Blending them would produce an average of two different flights.
Why AA581 runs late
Where US DOT attributed the delay minutes on this flight.
crew, maintenance, boarding, fuelling — within the carrier’s control
airspace and airport capacity, including weather-driven flow control
the inbound aircraft was late, so this flight started late
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for AA581 on MIA → ORD. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Other departures on MIA → ORD
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| UA1983 | United Airlines | 81.7% | 8 min early | 922 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. Schedules change; confirm the departure still operates before booking around this.
Data and methodology
Calculated by FlyerIntel from 561 records of AA581 operating MIA → ORD, 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