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 5259 LANDED 4:14 PM ET, ~6 MIN LATE · SCHEDULED TIME UNKNOWN

OH 5259 · PHL → PIT

took off 3:30 PM ET · landed 4:14 PM ET (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 6h after departure

Odds over time

Arrive at PIT more than 15 minutes late?
31% chance · ±0 pts +5 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% 20h 12h 6h Departs