Tracked live by the FAA, but its flight plan was first seen after takeoff, so we don't know the scheduled time and can't say whether it's late.

JETBLUE · FLIGHT B6 307 IN THE AIR (OFF 6:03 AM ET, ETA 6:52 AM ET) · SCHEDULED TIME UNKNOWN
Today

B6 307 · PWM → JFK

took off 6:03 AM ET · expected to land 6:52 AM ET (scheduled time unknown)
Forecast issued Wed 4:00 AM ET · 2h before departure

Odds over time

Arrive at JFK more than 15 minutes late?
9% chance · ±1 pts +2 pts · 24h
HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.
WEATHER FORECASTS LIVE IN THE AIR 0% 5% 10% 15% 20% 1.1d 12h 6h Now Departs Lands