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 5250 LANDED 6:34 PM ET, ~5 MIN LATE · SCHEDULED TIME UNKNOWN
Today

OO 5250 · ORD → GRR

took off 5:05 PM CT · landed 6:34 PM ET (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 4h after departure

Odds over time

Arrive at GRR more than 15 minutes late?
32% chance · ±1 pts +7 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% 1.1d 12h 6h Departs