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 4059 LANDED 8:03 AM CT, ~8 MIN LATE · SCHEDULED TIME UNKNOWN
Today

WN 4059 · DCA → DAL

took off 6:27 AM ET · landed 8:03 AM CT (scheduled time unknown)
Forecast issued Wed 3:00 PM ET · 9h after departure

Odds over time

Arrive at DAL more than 15 minutes late?
11% chance · ±0 pts +4 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 5% 10% 15% 20% 1.1d 12h 6h Departs Lands