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 754 LANDED 12:34 PM ET, ~1 MIN LATE · SCHEDULED TIME UNKNOWN
Yesterday

B6 754 · DCA → BOS

took off 11:37 AM ET · landed 12:34 PM ET (scheduled time unknown)
Forecast issued Sat 10:00 PM ET · 10h after departure

Odds over time

Arrive at BOS more than 15 minutes late?
34% chance · ±0 pts – · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
LIVE IN THE AIR 0% 15% 30% 45% 60% 5h Departs Lands