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 1448 IN THE AIR (OFF 12:10 PM PT, ETA 7:21 PM ET) · SCHEDULED TIME UNKNOWN
Today

B6 1448 · LAS → JFK

took off 12:10 PM PT · expected to land 7:21 PM ET (scheduled time unknown)
Forecast issued Tue 4:00 PM ET · 1h after departure

Odds over time

Arrive at JFK more than 15 minutes late?
45% chance · ±1 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% 14h 12h 6h Departs Lands