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 4100 LANDED 11:18 AM CT, ~7 MIN LATE · SCHEDULED TIME UNKNOWN

WN 4100 · MYR → BNA

took off 11:09 AM ET · landed 11:18 AM CT (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 11h after departure

Odds over time

Arrive at BNA more than 15 minutes late?
9% chance · ±0 pts – · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
LIVE IN THE AIR 0% 3% 6% 9% 12% 7h 6h Departs Lands