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 899 LANDED 7:09 PM MT, ~8 MIN LATE · SCHEDULED TIME UNKNOWN

WN 899 · BUR → PHX

took off 6:01 PM PT · landed 7:09 PM MT (scheduled time unknown)
Forecast issued Fri 10:00 PM ET · 1h after departure

Odds over time

Arrive at PHX more than 15 minutes late?
44% chance · ±1 pts – · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
LIVE IN THE AIR 0% 15% 30% 45% 60% 1h Departs Lands