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 737 LANDED 7:42 PM CT, ~12 MIN LATE · SCHEDULED TIME UNKNOWN
Today

WN 737 · BWI → BNA

took off 7:20 PM ET · landed 7:42 PM CT (scheduled time unknown)
Forecast issued Tue 9:00 PM ET · 2h after 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% 1.2d 1d 12h 6h Departs Lands