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.

UNITED · FLIGHT UA 1304 LANDED 7:32 AM CT, ~17 MIN LATE · SCHEDULED TIME UNKNOWN

UA 1304 · CLT → ORD

took off 7:01 AM ET · landed 7:32 AM CT (scheduled time unknown)
Forecast issued Wed 10:00 PM ET · 15h after departure

Odds over time

Arrive at ORD more than 15 minutes late?
38% chance · ±0 pts +14 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 20% 40% 60% 80% 1.0d 12h 6h Departs Lands