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 2746 LANDED 10:49 AM ET, ~10 MIN EARLY · SCHEDULED TIME UNKNOWN

UA 2746 · MCO → IAD

took off 9:09 AM ET · landed 10:49 AM ET (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 13h after departure

Odds over time

Arrive at IAD more than 15 minutes late?
11% 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% 18h 12h 6h Departs Lands