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 2743 IN THE AIR (OFF 2:29 PM PT, ETA 3:08 PM PT) · SCHEDULED TIME UNKNOWN
Today

WN 2743 · BUR → LAS

took off 2:29 PM PT · expected to land 3:08 PM PT (scheduled time unknown)
Forecast issued Wed 4:00 PM ET · 2h before departure

Odds over time

Arrive at LAS more than 15 minutes late?
26% chance · ±2 pts +2 pts · 24h
HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.
WEATHER FORECASTS LIVE IN THE AIR 0% 10% 20% 30% 40% 1.1d 12h 6h Now Departs Lands