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.

FRONTIER · FLIGHT F9 2836 LANDED 2:48 AM ET, ~8 MIN EARLY · SCHEDULED TIME UNKNOWN

F9 2836 · TPA → PHL

took off 12:42 AM ET · landed 2:48 AM ET (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 21h after departure

Odds over time

Arrive at PHL more than 15 minutes late?
16% chance · ±0 pts −2 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 10% 20% 30% 40% 1.9d 1d 12h 6h Departs Lands