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 2839 LANDED 6:48 PM ET, ~16 MIN LATE · SCHEDULED TIME UNKNOWN
Yesterday

WN 2839 · STL → MCO

took off 3:57 PM CT · landed 6:48 PM ET (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 5h after departure

Odds over time

Arrive at MCO more than 15 minutes late?
16% chance · ±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% 5% 10% 15% 20% 13h 6h Departs Lands