Flight profile · JetBlue
B6861
Boston (BOS) to San Juan (SJU) · scheduled 8:00 AM – 12:06 PM
How B6861 performs
1,002 operations, 2023-07-01 to 2026-06-30.
B6861 arrived on time 73.8% of the time, against 67.8% for all BOS → SJU flights — this specific departure is 6.0 percentage points better than the route as a whole. Against JetBlue’s own flights on this route it is 5.9 points better.
Source: US DOT Bureau of Transportation Statistics · 1,002 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| B6861 | 73.8% | 1.60% | -3 min | 8.8% | 1,002 |
| JetBlue on BOS → SJU | 67.9% | 1.33% | 0 min | 12.5% | 3,770 |
| All BOS → SJU flights | 67.8% | 1.60% | 0 min | 12.2% | 5,869 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does B6861 run worse on particular days?
Tuesday is historically the most reliable day and Monday the least, a gap of 9.4 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30 · Days with fewer than 120 operations are not scored.
Data and methodology
Calculated by FlyerIntel from 1,002 records of B6861 operating BOS → SJU, 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.