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.

SUN COUNTRY · FLIGHT SY 3096 SCHEDULED · SCHEDULED TIME UNKNOWN
Today

SY 3096 · SBD → STL

departs 10:09 PM PT · arrives 3:08 AM CT
Your aircraft is N5179A (B738), coming in as SY 3081 from MSP: landed 7:06 PM PT.
Forecast issued Mon 10:00 PM ET · 3h before departure

Odds over time

Arrive at STL more than 15 minutes late?
19% chance · ±0 pts – · 24h
HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.
LIVE IN THE AIR 0% 10% 20% 30% 40% 4h Now Departs Lands