Flight profile · American Airlines
AA1418
Boston (BOS) to Miami (MIA) · scheduled 5:15 AM – 9:10 AM
How AA1418 performs
596 operations, 2023-11-05 to 2026-06-30.
AA1418 arrived on time 93.3% of the time, against 78.1% for all BOS → MIA flights — this specific departure is 15.2 percentage points better than the route as a whole. Against American Airlines’s own flights on this route it is 10.5 points better.
Source: US DOT Bureau of Transportation Statistics · 596 operations between 2023-11-05 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| AA1418 | 93.3% | 1.68% | -17 min | 1.4% | 596 |
| American Airlines on BOS → MIA | 82.9% | 1.46% | -12 min | 5.9% | 6,765 |
| All BOS → MIA flights | 78.1% | 1.56% | -9 min | 8.3% | 11,209 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-11-05 to 2026-06-30
Other routes AA1418 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 |
|---|---|---|---|
| EWR→PHX Newark to Phoenix | 2026-03-08 – 2026-04-06 | 30 | — |
| PHX→EWR Phoenix to Newark | 2026-03-08 – 2026-04-06 | 30 | — |
| MKE→DFW Milwaukee to Dallas–Fort Worth | 2026-02-12 – 2026-03-07 | 24 | — |
| ORD→PHL Chicago to Philadelphia | 2026-01-06 – 2026-02-11 | 37 | — |
| DFW→CHS Dallas–Fort Worth to Charleston | 2025-12-18 – 2026-01-05 | 19 | — |
| MIA→AUS Miami to Austin | 2025-12-03 – 2025-12-17 | 15 | — |
| PHX→PHL Phoenix to Philadelphia | 2025-11-02 – 2025-12-02 | 30 | — |
| CHS→DFW Charleston to Dallas–Fort Worth | 2023-07-01 – 2024-11-04 | 342 | 85.6% |
Because the same number has served different journeys, the statistics above describe only the route AA1418 currently operates. Blending them would produce an average of two different flights.
Why AA1418 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 AA1418 on BOS → MIA. 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 BOS → MIA
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| AA1259 | American Airlines | 88.6% | 15 min early | 1,011 |
| DL1399 | Delta Air Lines | 84.2% | 10 min early | 1,000 |
| B61519 | JetBlue | 78.0% | 7 min early | 601 |
| AA2247 | American Airlines | 76.2% | 7 min early | 716 |
| DL776 | Delta Air Lines | 64.2% | 1 min late | 813 |
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 596 records of AA1418 operating BOS → 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.
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