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 1215 LANDED 9:52 AM ET, ~3 MIN LATE · SCHEDULED TIME UNKNOWN
Today

B6 1215 · BOS → BUF

took off 8:49 AM ET · landed 9:52 AM ET (scheduled time unknown)
Forecast issued Sat 9:00 PM ET · 12h after departure

Odds over time

Arrive at BUF more than 15 minutes late?
15% chance · ±0 pts – · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
LIVE IN THE AIR 0% 10% 20% 30% 40% 4h Departs Lands