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 3929 LANDED 12:17 PM ET, ~6 MIN LATE · SCHEDULED TIME UNKNOWN

WN 3929 · BNA → SAV

took off 10:17 AM CT · landed 12:17 PM ET (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 11h after departure

Odds over time

Arrive at SAV more than 15 minutes late?
14% chance · ±0 pts – · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
LIVE IN THE AIR 0% 5% 10% 15% 20% 7h 6h Departs Lands