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 4966 LANDED 2:17 PM MT, ~13 MIN LATE · SCHEDULED TIME UNKNOWN
Today

WN 4966 · LGB → DEN

took off 11:24 AM PT · landed 2:17 PM MT (scheduled time unknown)
Forecast issued Tue 3:00 PM ET · 1h after departure

Odds over time

Arrive at DEN more than 15 minutes late?
22% chance · ±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% 10% 20% 30% 40% 10h 6h Departs Lands