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.

HORIZON · FLIGHT QX 2400 LANDED 9:17 PM PT, ~20 MIN LATE · SCHEDULED TIME UNKNOWN

QX 2400 · TUL → SEA

took off 7:31 PM CT · landed 9:17 PM PT (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 2h after departure

Odds over time

Arrive at SEA more than 15 minutes late?
25% chance · ±0 pts +8 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 10% 20% 30% 40% 1.1d 12h 6h Departs Now Lands