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 4143 LANDED 6:50 AM PT, ~6 MIN LATE · SCHEDULED TIME UNKNOWN

Tuesday, September 29 Yesterday

WN 4143 · SAT → SAN

took off 6:06 AM CT · landed 6:50 AM PT (scheduled time unknown)

Forecast issued Tue 10:00 PM ET · 15h after departure

Arrive at SAN more than 15 minutes late?

7% chance · ±0 pts – · 24h

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

What’s moving the odds

↑ SAN is prone to delays

↑ Other factors

↑ SAN is busy at that time

↓ Early flights usually leave on time

↓ 6am departures from SAT are usually not late

Weather at each end

SAT (origin) Gusts23 kt Ceiling1,500 ft Visibility10+ mi Precipnone

SAN (destination) Gusts22 kt Ceiling1,700 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 4143 · SAT → SAN

Odds over time