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.

CAPE AIR · FLIGHT 9K 1834 LANDED 1:35 PM ET, ~4 MIN LATE · SCHEDULED TIME UNKNOWN
Today

9K 1834 · BHB → BOS

took off 12:22 PM ET · landed 1:35 PM ET (scheduled time unknown)
Forecast issued Wed 8:00 PM ET · 8h after departure

Odds over time

Arrive at BOS 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