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 2643 IN THE AIR (OFF 4:03 PM CT, ETA 5:24 PM CT) · SCHEDULED TIME UNKNOWN
Today

WN 2643 · TUL → MDW

took off 4:03 PM CT · expected to land 5:24 PM CT (scheduled time unknown)
Forecast issued Mon 4:00 PM ET · 1h before departure

Odds over time

Arrive at MDW more than 15 minutes late?
15% chance · ±2 pts +2 pts · 24h
HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.
WEATHER FORECASTS LIVE IN THE AIR 0% 15% 30% 45% 60% 1.0d 12h 6h Now Departs Lands