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 280 LANDED 9:30 PM CT, ~11 MIN LATE · SCHEDULED TIME UNKNOWN

WN 280 · MDW → BNA

took off 8:33 PM CT · landed 9:30 PM CT (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 0h before departure

Odds over time

Arrive at BNA more than 15 minutes late?
25% chance · ±0 pts −1 pt · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 10% 20% 30% 40% 1.0d 12h 6h Departs Lands