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.

SOUTHWEST · FLIGHT WN 1217 LANDED 12:48 PM ET, ~6 MIN LATE · SCHEDULED TIME UNKNOWN
Today

WN 1217 · PVD → BWI

took off 11:51 AM ET · landed 12:48 PM ET (scheduled time unknown)
Forecast issued Wed 4:00 PM ET · 4h after departure

Odds over time

Arrive at BWI more than 15 minutes late?
15% 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% 5% 10% 15% 20% 1.0d 12h 6h Departs Lands