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 1477 LANDED 4:48 PM CT, ~14 MIN LATE · SCHEDULED TIME UNKNOWN

UA 1477 · LAX → IAH

took off 12:02 PM PT · landed 4:48 PM CT (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 7h after departure

Odds over time

Arrive at IAH more than 15 minutes late?
25% chance · ±0 pts +7 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 10% 20% 30% 40% 1.0d 12h 6h Departs Lands