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 5998 LANDED 12:49 PM CT, ~23 MIN LATE · SCHEDULED TIME UNKNOWN
Yesterday

OO 5998 · SBN → ORD

took off 1:18 PM ET · landed 12:49 PM CT (scheduled time unknown)
Forecast issued Sat 10:00 PM ET · 9h after departure

Odds over time

Arrive at ORD more than 15 minutes late?
25% chance · ±0 pts – · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
LIVE IN THE AIR 0% 10% 20% 30% 40% 2h Departs