Schedule: a typical summer Friday (the flights of Jul 31, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

JETBLUE · FLIGHT B6 1903 SCHEDULED · TYPICAL SCHEDULE
Yesterday

B6 1903 · RDU → SJU

departs 7:56 PM ET · arrives 11:34 PM AT
Forecast issued Fri 10:00 PM ET · 2h after departure

Odds over time

Arrive at SJU more than 15 minutes late?
33% chance · ±0 pts +4 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 20% 40% 60% 80% 3.9d 2d 1d 12h 6h Departs Now Lands

How late will it get to SJU?

  1. On time or early
    66%
  2. 15–30 min late
    7%
  3. 30 min–1 hour late
    15%
  4. 1–2 hours late
    6%
  5. Over 2 hours late
    5%
  6. Cancelled
    <1%

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