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 3667 LANDED 9:52 PM PT, ~5 MIN LATE · SCHEDULED TIME UNKNOWN

WN 3667 · SAN → PDX

took off 7:49 PM PT · landed 9:52 PM PT (scheduled time unknown)
Forecast issued Fri 10:00 PM ET · 1h before departure

Odds over time

Arrive at PDX more than 15 minutes late?
48% chance · ±0 pts – · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
LIVE IN THE AIR 0% 25% 50% 75% 100% 2h Now Departs Lands