Flight profile · JetBlue
B6311
Boston (BOS) to Chicago (ORD) · scheduled 6:00 AM – 10:08 AM
How B6311 performs
943 operations, 2023-07-01 to 2026-06-30.
B6311 arrived on time 85.5% of the time, against 77.1% for all BOS → ORD flights — this specific departure is 8.5 percentage points better than the route as a whole. Against JetBlue’s own flights on this route it is 11.7 points better.
Source: US DOT Bureau of Transportation Statistics · 943 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| B6311 | 85.5% | 0.85% | -10 min | 5.4% | 943 |
| JetBlue on BOS → ORD | 73.9% | 1.13% | -5 min | 10.8% | 1,766 |
| All BOS → ORD flights | 77.1% | 1.92% | -7 min | 9.7% | 21,098 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does B6311 run worse on particular days?
Wednesday is historically the most reliable day and Monday the least, a gap of 7.3 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 943 records of B6311 operating BOS → ORD, 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.