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 1600 LANDED 3:10 PM ET, ~9 MIN LATE · SCHEDULED TIME UNKNOWN

WN 1600 · BNA → MIA

took off 12:23 PM CT · landed 3:10 PM ET (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 9h after departure

Odds over time

Arrive at MIA more than 15 minutes late?
33% chance · ±0 pts – · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
LIVE IN THE AIR 0% 20% 40% 60% 80% 9h 6h Departs Lands