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.

SKYWEST · FLIGHT OO 3115 LANDED 3:07 PM PT, ~8 MIN LATE · SCHEDULED TIME UNKNOWN
Yesterday

OO 3115 · MFR → SEA

took off 2:02 PM PT · landed 3:07 PM PT (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 5h after departure

Odds over time

Arrive at SEA more than 15 minutes late?
23% chance · ±0 pts −7 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 15% 30% 45% 60% 1.1d 12h 6h Departs Lands