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.

SOUTHERN AIRWAYS EXPRESS · FLIGHT 9X 126 SCHEDULED · SCHEDULED TIME UNKNOWN
Today

9X 126 · DUJ → IAD

departs 10:26 AM ET · arrives 11:17 AM ET
Your aircraft is N4118K (C208), coming in as 9X 121 from IAD: landed 6:55 PM ET.
Forecast issued Sat 9:00 AM ET · 1h before departure

Odds over time

Arrive at IAD more than 15 minutes late?
34% 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% 15% 30% 45% 60% Now Departs Lands