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.

PIEDMONT · FLIGHT PT 5800 LANDED 2:12 PM ET, ~4 MIN LATE · SCHEDULED TIME UNKNOWN
Today

PT 5800 · BUF → PHL

took off 1:20 PM ET · landed 2:12 PM ET (scheduled time unknown)
Forecast issued Mon 10:00 PM ET · 9h after departure

Odds over time

Arrive at PHL more than 15 minutes late?
28% chance · ±0 pts – · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
LIVE IN THE AIR 0% 10% 20% 30% 40% 2h Departs Lands