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 2859 LANDED 4:39 PM ET, ON TIME · SCHEDULED TIME UNKNOWN
Yesterday

WN 2859 · MIA → BWI

took off 2:39 PM ET · landed 4:39 PM ET (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 7h after departure

Odds over time

Arrive at BWI more than 15 minutes late?
40% 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% 25% 50% 75% 100% 11h 6h Departs Lands