Flight profile · JetBlue
B669
Boston (BOS) to Fort Lauderdale (FLL) · scheduled 4:00 PM – 2:39 PM
How B669 performs
537 operations, 2023-07-01 to 2026-06-10.
B669 arrived on time 63.7% of the time, against 68.7% for all BOS → FLL flights — this specific departure is 5.0 percentage points worse than the route as a whole. Against JetBlue’s own flights on this route it is 2.4 points worse.
Source: US DOT Bureau of Transportation Statistics · 537 operations between 2023-07-01 to 2026-06-10
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| B669 | 63.7% | 1.68% | 2 min | 13.5% | 537 |
| JetBlue on BOS → FLL | 66.1% | 1.97% | -1 min | 13.3% | 5,120 |
| All BOS → FLL flights | 68.7% | 2.13% | -2 min | 12.4% | 9,831 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-10
Why B669 runs late
Where US DOT attributed the delay minutes on this flight.
airspace and airport capacity, including weather-driven flow control
the inbound aircraft was late, so this flight started late
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 B669 on BOS → FLL. 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 → FLL
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| DL1401 | Delta Air Lines | 80.6% | 7 min early | 939 |
| B6569 | JetBlue | 80.0% | 7 min early | 880 |
| DL2196 | Delta Air Lines | 62.7% | 5 min late | 665 |
| B6369 | JetBlue | 60.2% | 4 min late | 920 |
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 537 records of B669 operating BOS → FLL, 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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