Flight profile · JetBlue
B61519
Boston (BOS) to Miami (MIA) · scheduled 6:00 AM – 10:37 AM
Not currently scheduled Last operated 2025-04-29.
How B61519 performs
601 operations, 2023-09-06 to 2025-04-29.
Source: US DOT Bureau of Transportation Statistics · 601 operations between 2023-09-06 to 2025-04-29
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| B61519 | 78.0% | 1.50% | -7 min | 6.9% | 601 |
| JetBlue on BOS → MIA | 69.1% | 2.01% | -3 min | 13.0% | 1,143 |
| All BOS → MIA flights | 78.1% | 1.56% | -9 min | 8.3% | 11,209 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-09-06 to 2025-04-29
Why B61519 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
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for B61519 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 |
| 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 601 records of B61519 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.
Full methodology · Report a problem
Analysis last recomputed