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 5096 LANDED 6:31 AM ET, ~1 MIN LATE · SCHEDULED TIME UNKNOWN

OH 5096 · BUF → DCA

took off 5:37 AM ET · landed 6:31 AM ET (scheduled time unknown)
Forecast issued Wed 10:00 PM ET · 16h after departure

Odds over time

Arrive at DCA more than 15 minutes late?
9% chance · ±0 pts −1 pt · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 5% 10% 15% 20% 1.0d 12h 6h Departs Lands