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 3020 LANDED 7:04 AM CT, ~5 MIN LATE · SCHEDULED TIME UNKNOWN
Today

WN 3020 · MEM → MDW

took off 5:54 AM CT · landed 7:04 AM CT (scheduled time unknown)
Forecast issued Sat 7:00 AM ET · 0h before departure

Odds over time

Arrive at MDW more than 15 minutes late?
8% chance · ±0 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% 4h Departs Lands