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.

VOLARIS · FLIGHT Y4 771 SCHEDULED · SCHEDULED TIME UNKNOWN
Tomorrow

Y4 771 · OAK → MEX

departs 12:32 AM PT · arrives 5:19 AM CST
Your aircraft is XAVUQ (A21N), coming in as Y4 770 from MEX: landed 11:37 AM PT.
Forecast issued Tue 10:00 PM ET · 6h before departure

Odds over time

Arrive at MEX more than 15 minutes late?
9% chance · ±0 pts −1 pt · 24h
HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.
MOSTLY HISTORY WEATHER FORECASTS LIVE IN THE AIR 0% 5% 10% 15% 20% 6.1d 2d 1d 12h Now Departs Lands