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 6254 LANDED 11:48 AM ET, ~9 MIN LATE · SCHEDULED TIME UNKNOWN

YV 6254 · SYR → IAD

took off 10:52 AM ET · landed 11:48 AM ET (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 11h after departure

Odds over time

Arrive at IAD more than 15 minutes late?
13% chance · ±0 pts +2 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% 15h 12h 6h Departs Lands