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 251 LANDED 7:23 PM CT, ~5 MIN LATE · SCHEDULED TIME UNKNOWN

UA 251 · IAD → MSY

took off 6:22 PM ET · landed 7:23 PM CT (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 4h after departure

Odds over time

Arrive at MSY more than 15 minutes late?
15% 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% 5% 10% 15% 20% 1.1d 1d 12h 6h Departs Lands