Flight profile · JetBlue
B6143
Newark (EWR) to West Palm Beach (PBI) · scheduled 6:00 AM – 11:05 PM
How B6143 performs
928 operations, 2023-07-01 to 2026-06-30.
B6143 arrived on time 79.3% of the time, against 76.6% for all EWR → PBI flights — this specific departure is 2.7 percentage points better than the route as a whole. Against JetBlue’s own flights on this route it is 8.0 points better.
Source: US DOT Bureau of Transportation Statistics · 928 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| B6143 | 79.3% | 2.26% | -11 min | 7.4% | 928 |
| JetBlue on EWR → PBI | 71.3% | 2.25% | -5 min | 11.7% | 2,135 |
| All EWR → PBI flights | 76.6% | 2.53% | -8 min | 9.2% | 10,319 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does B6143 run worse on particular days?
Tuesday is historically the most reliable day and Saturday the least, a gap of 13.4 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.
Why B6143 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 B6143 on EWR → PBI. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Data and methodology
Calculated by FlyerIntel from 928 records of B6143 operating EWR → PBI, 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.