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 2209 SCHEDULED · SCHEDULED TIME UNKNOWN
Yesterday

WN 2209 · DCA → DAL

departs 8:22 PM ET · arrives 9:55 PM CT
Forecast issued Wed 10:00 PM ET · 2h after departure

Odds over time

Arrive at DAL more than 15 minutes late?
58% chance · ±2 pts +7 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 25% 50% 75% 100% 1.1d 12h 6h Departs Now Lands