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 1396 LANDED 9:57 PM ET, ~15 MIN LATE · SCHEDULED TIME UNKNOWN
Yesterday

B6 1396 · ATL → BOS

took off 7:46 PM ET · landed 9:57 PM ET (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 2h after departure

Odds over time

Arrive at BOS more than 15 minutes late?
77% chance · ±2 pts +11 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 25% 50% 75% 100% 1.2d 1d 12h 6h Departs Lands