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 4653 LANDED 6:05 PM CT, ~4 MIN LATE · SCHEDULED TIME UNKNOWN
Today

WN 4653 · LAS → SAT

took off 1:53 PM PT · landed 6:05 PM CT (scheduled time unknown)
Forecast issued Tue 7:00 PM ET · 2h after departure

Odds over time

Arrive at SAT more than 15 minutes late?
58% chance · ±0 pts +20 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