Flight profile · JetBlue
B6251
Boston (BOS) to Orlando (MCO) · scheduled 8:30 PM – 11:59 PM
How B6251 performs
173 operations, 2025-04-30 to 2026-06-30.
B6251 arrived on time 56.4% of the time, against 70.6% for all BOS → MCO flights — this specific departure is 14.2 percentage points worse than the route as a whole. Against JetBlue’s own flights on this route it is 12.0 points worse.
Source: US DOT Bureau of Transportation Statistics · 173 operations between 2025-04-30 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| B6251 | 56.4% | 0.00% | 8 min | 22.1% | 173 |
| JetBlue on BOS → MCO | 68.4% | 2.10% | -2 min | 13.0% | 7,243 |
| All BOS → MCO flights | 70.6% | 2.04% | -3 min | 12.1% | 14,563 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-04-30 to 2026-06-30
Other routes B6251 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 |
|---|---|---|---|
| HPN→RSW White Plains to Fort Myers | 2024-10-27 – 2026-05-20 | 386 | 84.5% |
| EWR→RSW Newark to Fort Myers | 2025-03-31 – 2025-03-31 | 1 | — |
Because the same number has served different journeys, the statistics above describe only the route B6251 currently operates. Blending them would produce an average of two different flights.
Why B6251 runs late
Where US DOT attributed the delay minutes on this flight.
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding, fuelling — within the carrier’s control
airspace and airport capacity, including weather-driven flow control
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for B6251 on BOS → MCO. 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 → MCO
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| DL1580 | Delta Air Lines | 87.0% | 12 min early | 808 |
| DL1570 | Delta Air Lines | 80.5% | 8 min early | 632 |
| B6551 | JetBlue | 75.6% | 4 min early | 762 |
| B62051 | JetBlue | 72.7% | 5 min early | 966 |
| B62251 | JetBlue | 68.1% | 1 min early | 1,008 |
| DL1513 | Delta Air Lines | 67.9% | 3 min early | 959 |
| B6451 | JetBlue | 59.9% | 5 min late | 961 |
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 173 records of B6251 operating BOS → MCO, 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.