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 1226 LANDED 11:25 AM ET, ~2 MIN LATE · SCHEDULED TIME UNKNOWN
Today

9K 1226 · BOS → ACK

took off 10:50 AM ET · landed 11:25 AM ET (scheduled time unknown)
Forecast issued Tue 7:00 PM ET · 8h after departure

Odds over time

Arrive at ACK more than 15 minutes late?
13% chance · ±0 pts – · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
LIVE IN THE AIR 0% 5% 10% 15% 20% 2h Departs Lands