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 3398 LANDED 5:47 PM CT, ~8 MIN LATE · SCHEDULED TIME UNKNOWN

WN 3398 · SAN → BNA

took off 12:31 PM PT · landed 5:47 PM CT (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 6h after departure

Odds over time

Arrive at BNA more than 15 minutes late?
27% chance · ±0 pts +2 pts · 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% 2.6d 2d 1d 12h 6h Departs Lands