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.

SOUTHWEST · FLIGHT WN 799 LANDED 5:30 PM CT, ~13 MIN LATE · SCHEDULED TIME UNKNOWN
Yesterday

WN 799 · PHX → HOU

took off 1:21 PM MT · landed 5:30 PM CT (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 6h after departure

Odds over time

Arrive at HOU more than 15 minutes late?
48% chance · ±0 pts −8 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 25% 50% 75% 100% 1.1d 12h 6h Departs Lands