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 1377 LANDED 7:11 AM ET, ON TIME · SCHEDULED TIME UNKNOWN
Yesterday

WN 1377 · CMH → TPA

took off 5:26 AM ET · landed 7:11 AM ET (scheduled time unknown)
Forecast issued Sat 10:00 PM ET · 17h after departure

Odds over time

Arrive at TPA more than 15 minutes late?
7% chance · ±0 pts +3 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% 2h Departs Lands