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 1726 LANDED 12:15 PM CT, ~5 MIN LATE · SCHEDULED TIME UNKNOWN
Today

WN 1726 · HRL → DAL

took off 11:07 AM CT · landed 12:15 PM CT (scheduled time unknown)
Forecast issued Sat 1:00 PM ET · 1h after departure

Odds over time

Arrive at DAL more than 15 minutes late?
23% chance · ±1 pts – · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
LIVE IN THE AIR 0% 10% 20% 30% 40% 8h 6h Departs Lands