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 1462 LANDED 5:37 PM ET, ~7 MIN LATE · SCHEDULED TIME UNKNOWN
Today

F9 1462 · IAH → MIA

took off 2:28 PM CT · landed 5:37 PM ET (scheduled time unknown)
Forecast issued Mon 4:00 PM ET · 1h after departure

Odds over time

Arrive at MIA more than 15 minutes late?
42% chance · ±1 pts +0 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 25% 50% 75% 100% 1.0d 12h 6h Departs Lands