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 4820 LANDED 10:42 AM ET, ~8 MIN LATE · SCHEDULED TIME UNKNOWN
Today

WN 4820 · BWI → SRQ

took off 8:36 AM ET · landed 10:42 AM ET (scheduled time unknown)
Forecast issued Sat 11:00 AM ET · 2h after departure

Odds over time

Arrive at SRQ more than 15 minutes late?
28% chance · ±0 pts – · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
LIVE IN THE AIR 0% 10% 20% 30% 40% 5h Departs Lands