Schedule: a typical Saturday (the flights of Jul 25, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.

JETBLUE · FLIGHT B6 818 SCHEDULED · TYPICAL SCHEDULE

B6 818 · JFK → BOS

departs 5:30 PM ET · arrives 7:04 PM ET
Forecast issued Wed 9:00 PM ET · 68h before departure

Odds over time

Arrive at BOS more than 15 minutes late?
35% chance · ±7 pts −2 pts · 24h
HOW SURE WE ARE Moderate. The odds now blend history with early weather forecasts.
MOSTLY HISTORY WEATHER FORECASTS LIVE IN THE AIR 0% 15% 30% 45% 60% 4.8d Now 2d 1d 12h 6h Departs Lands

How late will it get to BOS?

  1. On time or early
    64%
  2. 15–30 min late
    8%
  3. 30 min–1 hour late
    14%
  4. 1–2 hours late
    10%
  5. Over 2 hours late
    3%
  6. Cancelled
    <1%

Gate arrival compared with the scheduled arrival. The ranges add up to 100%.