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 4318 LANDED 8:30 PM PT, ~2 MIN LATE · SCHEDULED TIME UNKNOWN

Friday, October 2

WN 4318 · DAL → ONT

took off 8:01 PM CT · landed 8:30 PM PT (scheduled time unknown)

Forecast issued Fri 10:00 PM ET · 1h after departure

Arrive at ONT more than 15 minutes late?

50% chance · ±1 pts – · 24h

HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.

What’s moving the odds

No breakdown for this forecast yet.

Weather at each end

DAL (origin) Gusts22 kt Ceiling600 ft Visibility4 mi Precip0.24 in

ONT (destination) Gusts11 kt Ceilingnone (clear) Visibility8 mi Precipnone

How this resolves

Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.

Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.

WN 4318 · DAL → ONT

Odds over time