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.

CHINA EASTERN · FLIGHT MU 589 SCHEDULED · SCHEDULED TIME UNKNOWN
Today

MU 589 · PVG → SFO

departs 2:15 PM CST · arrives 7:58 AM PT
Forecast issued Tue 6:00 AM ET · 5h after departure

Odds over time

Arrive at SFO more than 15 minutes late?
34% chance · ±8 pts +3 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% 2.0d 1d 12h 6h Departs Now Lands