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.

SOUTHWEST · FLIGHT WN 1452 SCHEDULED · SCHEDULED TIME UNKNOWN
Today

WN 1452 · MCO → SJU

departs 7:07 PM ET · arrives 9:34 PM AT
Forecast issued Tue 3:00 PM ET · 4h before departure

Odds over time

Arrive at SJU more than 15 minutes late?
23% chance · ±2 pts −2 pts · 24h
HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.
WEATHER FORECASTS LIVE IN THE AIR 0% 10% 20% 30% 40% 1.2d 1d 12h 6h Now Departs Lands