Flight profile · American Airlines
AA1178
Washington (DCA) to Miami (MIA) · scheduled 5:00 AM – 7:39 AM
How AA1178 performs
696 operations, 2023-07-01 to 2026-06-30.
AA1178 arrived on time 91.2% of the time, against 77.3% for all DCA → MIA flights — this specific departure is 13.8 percentage points better than the route as a whole. Against American Airlines’s own flights on this route it is 13.3 points better.
Source: US DOT Bureau of Transportation Statistics · 696 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| AA1178 | 91.2% | 2.44% | -14 min | 3.2% | 696 |
| American Airlines on DCA → MIA | 77.9% | 2.12% | -9 min | 9.1% | 10,520 |
| All DCA → MIA flights | 77.3% | 2.04% | -9 min | 9.3% | 11,643 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
Other routes AA1178 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 |
|---|---|---|---|
| DFW→SEA Dallas–Fort Worth to Seattle | 2026-03-08 – 2026-04-06 | 22 | — |
| DFW→ORD Dallas–Fort Worth to Chicago | 2025-03-09 – 2026-03-28 | 22 | — |
| LAX→ORD Los Angeles to Chicago | 2025-11-03 – 2026-03-07 | 90 | 76.1% |
| RNO→PHX Reno to Phoenix | 2025-12-18 – 2026-01-05 | 17 | — |
| DCA→BNA Washington to Nashville | 2025-10-11 – 2025-10-31 | 4 | — |
| ORD→IAH Chicago to Houston | 2025-02-13 – 2025-03-05 | 21 | — |
| CLT→SDF Charlotte to Louisville | 2023-11-05 – 2025-02-12 | 103 | 87.4% |
| SDF→CLT Louisville to Charlotte | 2023-11-05 – 2025-02-12 | 101 | 81.0% |
| MIA→MSY Miami to New Orleans | 2024-12-20 – 2025-01-06 | 7 | — |
| MSY→MIA New Orleans to Miami | 2024-12-20 – 2025-01-06 | 7 | — |
| JAX→MIA Jacksonville to Miami | 2024-12-19 – 2025-01-04 | 10 | — |
| MIA→JAX Miami to Jacksonville | 2024-12-19 – 2025-01-04 | 10 | — |
| LAX→DFW Los Angeles to Dallas–Fort Worth | 2024-06-05 – 2024-06-05 | 1 | — |
Because the same number has served different journeys, the statistics above describe only the route AA1178 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 696 records of AA1178 operating DCA → MIA, 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.