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 1560 LANDED 10:30 AM ET, ~2 MIN EARLY · SCHEDULED TIME UNKNOWN
Today

WN 1560 · DEN → BWI

took off 5:40 AM MT · landed 10:30 AM ET (scheduled time unknown)
Forecast issued Sat 11:00 AM ET · 3h after departure

Odds over time

Arrive at BWI more than 15 minutes late?
5% chance · ±0 pts – · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
LIVE IN THE AIR 0% 3% 6% 9% 12% 4h Departs Lands