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 1806 LANDED 12:23 PM ET, ~11 MIN LATE · SCHEDULED TIME UNKNOWN
Yesterday

B6 1806 · BNA → BOS

took off 9:15 AM CT · landed 12:23 PM ET (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 12h after departure

Odds over time

Arrive at BOS more than 15 minutes late?
33% chance · ±0 pts −17 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% 2.7d 2d 1d 12h 6h Departs Lands