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 2300 LANDED 12:56 PM CT, ~10 MIN LATE · SCHEDULED TIME UNKNOWN

WN 2300 · PIT → BNA

took off 12:49 PM ET · landed 12:56 PM CT (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 9h after departure

Odds over time

Arrive at BNA more than 15 minutes late?
10% 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% 9h 6h Departs Lands