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 4666 LANDED 5:00 PM MT, ~15 MIN LATE · SCHEDULED TIME UNKNOWN

Tuesday, September 29 Today

WN 4666 · OAK → DEN

took off 1:53 PM PT · landed 5:00 PM MT (scheduled time unknown)

Forecast issued Tue 5:00 PM ET · 0h before departure

Arrive at DEN more than 15 minutes late?

28% chance · ±1 pts −17 pts · 24h

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

What’s moving the odds

↑ Arrivals into DEN at that hour are often late

↑ Other factors

↑ OAK is prone to delays

↓ Mostly benign weather forecast at DEN

↓ Tuesdays in September are usually quieter than average

Weather at each end

OAK (origin) Gusts7 kt Ceilingnone (clear) Visibility10+ mi Precipnone

DEN (destination) Gusts9 kt Ceiling6,000 ft Visibility10+ 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 4666 · OAK → DEN

Odds over time