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.

SKYWEST · FLIGHT OO 3979 LANDED 8:01 PM ET, ~10 MIN LATE · SCHEDULED TIME UNKNOWN
Yesterday

OO 3979 · GRB → DTW

took off 6:12 PM CT · landed 8:01 PM ET (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 3h after departure

Odds over time

Arrive at DTW more than 15 minutes late?
20% chance · ±0 pts −2 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 10% 20% 30% 40% 1.0d 12h 6h Departs Lands