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 5041 LANDED 6:28 AM ET, ~8 MIN LATE · SCHEDULED TIME UNKNOWN

OO 5041 · LYH → IAD

took off 5:58 AM ET · landed 6:28 AM ET (scheduled time unknown)
Forecast issued Wed 10:00 PM ET · 16h after departure

Odds over time

Arrive at IAD more than 15 minutes late?
19% chance · ±0 pts +0 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 10% 20% 30% 40% 2.3d 2d 1d 12h 6h Departs Lands