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.

PSA · FLIGHT OH 5479 LANDED 4:40 PM ET, ~6 MIN LATE · SCHEDULED TIME UNKNOWN

OH 5479 · DSM → PHL

took off 1:15 PM CT · landed 4:40 PM ET (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 8h after departure

Odds over time

Arrive at PHL more than 15 minutes late?
28% 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% 15% 30% 45% 60% 18h 12h 6h Departs Lands