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 4698 IN THE AIR (OFF 8:23 PM ET, ETA 10:21 PM PT) · SCHEDULED TIME UNKNOWN
Today

WN 4698 · BWI → LAX

took off 8:23 PM ET · expected to land 10:21 PM PT (scheduled time unknown)
Forecast issued Tue 9:00 PM ET · 1h after departure

Odds over time

Arrive at LAX more than 15 minutes late?
35% chance · ±2 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% 15% 30% 45% 60% 1.0d 12h 6h Departs Lands