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 8454 IN THE AIR (OFF 7:45 PM ET, ETA 8:30 PM ET) · SCHEDULED TIME UNKNOWN
Today

SY 8454 · SHD → PHL

took off 7:45 PM ET · expected to land 8:30 PM ET (scheduled time unknown)
Forecast issued Sat 6:00 PM ET · 2h before departure

Odds over time

Arrive at PHL more than 15 minutes late?
51% 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% 20% 40% 60% 80% Now Departs Lands