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 1371 LANDED 7:10 PM PT, ~16 MIN LATE · SCHEDULED TIME UNKNOWN
Yesterday

WN 1371 · OAK → SEA

took off 5:43 PM PT · landed 7:10 PM PT (scheduled time unknown)
Forecast issued Sat 10:00 PM ET · 1h after departure

Odds over time

Arrive at SEA more than 15 minutes late?
46% chance · ±1 pts – · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 25% 50% 75% 100% 17h 12h 6h Departs Lands