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.

MESA · FLIGHT YV 4018 LANDED 8:58 PM ET, ~13 MIN LATE · SCHEDULED TIME UNKNOWN
Today

YV 4018 · CLE → IAD

took off 8:04 PM ET · landed 8:58 PM ET (scheduled time unknown)
Forecast issued Tue 9:00 PM ET · 1h after departure

Odds over time

Arrive at IAD more than 15 minutes late?
13% chance · ±1 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% 5% 10% 15% 20% 1.0d 12h 6h Departs Lands