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 1581 LANDED 8:20 PM PT, ~8 MIN LATE · SCHEDULED TIME UNKNOWN

WN 1581 · OAK → SNA

took off 7:16 PM PT · landed 8:20 PM PT (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 0h before departure

Odds over time

Arrive at SNA more than 15 minutes late?
19% chance · ±1 pts −2 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% 1.1d 12h 6h Now Departs Lands