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 650 LANDED 9:31 AM CT, ~6 MIN LATE · SCHEDULED TIME UNKNOWN
Yesterday

WN 650 · LGA → STL

took off 8:28 AM ET · landed 9:31 AM CT (scheduled time unknown)
Forecast issued Sat 10:00 PM ET · 14h after departure

Odds over time

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