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.

AVIANCA · FLIGHT AV 42 DEPARTURE NOT REPORTED YET (THE FAA SEES FLIGHTS FROM ABROAD ONCE THEY NEAR US AIRSPACE) · SCHEDULED TIME UNKNOWN
Today

AV 42 · MDE → JFK

departs 2:05 AM -05 · arrives 4:48 AM ET
Your aircraft is HK5318 (A320).
Forecast issued Sat 3:00 AM ET · 1h after departure

Odds over time

Arrive at JFK more than 15 minutes late?
23% chance · ±1 pts – · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
LIVE IN THE AIR 0% 10% 20% 30% 40% 1h Departs Lands