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.

UNITED · FLIGHT UA 1074 LANDED 2:39 PM PT, ~9 MIN LATE · SCHEDULED TIME UNKNOWN
Today

UA 1074 · BOS → SFO

took off 12:08 PM ET · landed 2:39 PM PT (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 10h after departure

Odds over time

Arrive at SFO more than 15 minutes late?
22% chance · ±0 pts +4 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% 21h 12h 6h Departs Lands