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 654 LANDED 10:50 AM CT, ~7 MIN LATE · SCHEDULED TIME UNKNOWN
Today

WN 654 · MDW → DSM

took off 10:01 AM CT · landed 10:50 AM CT (scheduled time unknown)
Forecast issued Sun 4:00 PM ET · 5h after departure

Odds over time

Arrive at DSM more than 15 minutes late?
15% chance · ±0 pts +8 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% 1.0d 12h 6h Departs Lands