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 4285 LANDED 11:45 PM PT, ~7 MIN LATE · SCHEDULED TIME UNKNOWN

WN 4285 · MDW → SAN

took off 10:03 PM CT · landed 11:45 PM PT (scheduled time unknown)
Forecast issued Fri 10:00 PM ET · 1h before departure

Odds over time

Arrive at SAN more than 15 minutes late?
50% chance · ±7 pts – · 24h
HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.
LIVE IN THE AIR 0% 20% 40% 60% 80% 2h Now Departs Lands