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.

FRONTIER · FLIGHT F9 1882 LANDED 1:26 PM CT, ~8 MIN LATE · SCHEDULED TIME UNKNOWN
Yesterday

F9 1882 · IAH → ORD

took off 11:32 AM CT · landed 1:26 PM CT (scheduled time unknown)
Forecast issued Sat 10:00 PM ET · 10h after departure

Odds over time

Arrive at ORD more than 15 minutes late?
39% chance · ±0 pts – · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
LIVE IN THE AIR 0% 20% 40% 60% 80% 2h Departs Lands