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 1247 LANDED 7:44 AM MT, ~18 MIN LATE · SCHEDULED TIME UNKNOWN
Yesterday

WN 1247 · CMH → DEN

took off 7:02 AM ET · landed 7:44 AM MT (scheduled time unknown)
Forecast issued Sat 10:00 PM ET · 15h after departure

Odds over time

Arrive at DEN more than 15 minutes late?
6% 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% 3h Departs Lands