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 2339 SCHEDULED · SCHEDULED TIME UNKNOWN
Tomorrow

WN 2339 · MEM → HOU

departs 12:32 AM CT · arrives 1:52 AM CT
Your aircraft is N9000D (B38M), coming in as WN 2339 from LAS: landed 11:32 PM CT.
Forecast issued Fri 11:00 PM ET · 2h before departure

Odds over time

Arrive at HOU more than 15 minutes late?
32% chance · ±0 pts – · 24h
HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.
LIVE IN THE AIR 0% 10% 20% 30% 40% 4h Now Departs Lands