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 4271 LANDED 7:32 PM PT, ~1 MIN LATE · SCHEDULED TIME UNKNOWN

Friday, October 2

WN 4271 · SAN → SMF

took off 6:27 PM PT · landed 7:32 PM PT (scheduled time unknown)

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

Arrive at SMF more than 15 minutes late?

50% chance · ±0 pts – · 24h

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

What’s moving the odds

↑ 6pm departures from SAN are often late

↑ Later flights pick up delays from earlier in the day

↑ WN's recent on-time record

↓ Mostly benign weather forecast at SMF

Weather at each end

SAN (origin) Gusts19 kt Ceiling300 ft Visibility2.5 mi Precipnone

SMF (destination) Gusts8 kt Ceilingnone (clear) 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 4271 · SAN → SMF

Odds over time