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 1922 LANDED 12:30 AM ET, ~5 MIN LATE · SCHEDULED TIME UNKNOWN

UA 1922 · ORD → IAD

took off 10:08 PM CT · landed 12:30 AM ET (scheduled time unknown)
Forecast issued Fri 10:00 PM ET · 1h before departure

Odds over time

Arrive at IAD more than 15 minutes late?
31% chance · ±0 pts – · 24h
HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.
LIVE IN THE AIR 0% 20% 40% 60% 80% 2h Now Departs Lands