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.

FRONTIER · FLIGHT F9 2082 LANDED 12:49 AM AT, ~1 MIN EARLY · SCHEDULED TIME UNKNOWN

F9 2082 · ATL → SJU

took off 9:41 PM ET · landed 12:49 AM AT (scheduled time unknown)
Forecast issued Tue 11:00 PM ET · 1h after departure

Odds over time

Arrive at SJU more than 15 minutes late?
35% chance · ±1 pts +11 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
MOSTLY HISTORY WEATHER FORECASTS LIVE IN THE AIR 0% 15% 30% 45% 60% 6.9d 2d 1d 12h 6h Departs Now Lands