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 1928 LANDED 4:14 PM ET, ~3 MIN LATE · SCHEDULED TIME UNKNOWN
Today

WN 1928 · LAS → BWI

took off 9:09 AM PT · landed 4:14 PM ET (scheduled time unknown)
Forecast issued Tue 6:00 PM ET · 6h after departure

Odds over time

Arrive at BWI more than 15 minutes late?
34% chance · ±0 pts – · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
LIVE IN THE AIR 0% 15% 30% 45% 60% 8h 6h Departs Lands