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.

SOUTHWEST · FLIGHT WN 3412 LANDED 6:10 PM ET, ~9 MIN LATE · SCHEDULED TIME UNKNOWN
Yesterday

WN 3412 · DEN → DTW

took off 1:58 PM MT · landed 6:10 PM ET (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 6h after departure

Odds over time

Arrive at DTW more than 15 minutes late?
33% chance · ±0 pts – · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 15% 30% 45% 60% 12h 6h Departs Lands