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 2825 LANDED 1:00 PM PT, ~42 MIN LATE · SCHEDULED TIME UNKNOWN
Yesterday

WN 2825 · MDW → SEA

took off 10:56 AM CT · landed 1:00 PM PT (scheduled time unknown)
Forecast issued Wed 10:00 PM ET · 10h after departure

Odds over time

Arrive at SEA more than 15 minutes late?
58% chance · ±0 pts +6 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 20% 40% 60% 80% 1.0d 12h 6h Departs Lands