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.

ENVOY · FLIGHT MQ 3947 LANDED 8:28 PM CT, ~11 MIN LATE · SCHEDULED TIME UNKNOWN

MQ 3947 · DTW → ORD

took off 8:45 PM ET · landed 8:28 PM CT (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 1h after departure

Odds over time

Arrive at ORD more than 15 minutes late?
46% chance · ±0 pts +24 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% 1.0d 12h 6h Departs Lands Now