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.

DELTA · FLIGHT DL 690 LANDED 1:56 PM ET, ~11 MIN LATE · SCHEDULED TIME UNKNOWN

DL 690 · RSW → BOS

took off 11:15 AM ET · landed 1:56 PM ET (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 11h after departure

Odds over time

Arrive at BOS more than 15 minutes late?
30% chance · ±0 pts +6 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% 8h 6h Departs Lands