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 240 LANDED 2:23 PM CT, ~10 MIN LATE · SCHEDULED TIME UNKNOWN
Today

WN 240 · MDW → BNA

took off 1:26 PM CT · landed 2:23 PM CT (scheduled time unknown)
Forecast issued Wed 10:00 PM ET · 8h after departure

Odds over time

Arrive at BNA more than 15 minutes late?
50% chance · ±0 pts +9 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 20% 40% 60% 80% 1.1d 12h 6h Departs Lands