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 1944 LANDED 1:02 PM CT, ~11 MIN LATE · SCHEDULED TIME UNKNOWN
Yesterday

WN 1944 · GRR → BNA

took off 12:52 PM ET · landed 1:02 PM CT (scheduled time unknown)
Forecast issued Sat 10:00 PM ET · 9h after departure

Odds over time

Arrive at BNA more than 15 minutes late?
22% chance · ±0 pts – · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
LIVE IN THE AIR 0% 15% 30% 45% 60% 9h 6h Departs Lands