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 3648 SCHEDULED · SCHEDULED TIME UNKNOWN

Monday, October 5 Today

WN 3648 · BOI → SMF

departs 2:19 PM MT · arrives 2:21 PM PT

Forecast issued Mon 2:00 PM ET · 2h before departure

Arrive at SMF more than 15 minutes late?

35% chance · ±0 pts +17 pts · 24h

HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.

What’s moving the odds

↑ Other factors

↑ WN's recent on-time record

↑ 2pm departures from BOI are often late

↓ Mostly benign weather forecast at SMF

↓ Mostly benign weather forecast at BOI

Weather at each end

BOI (origin) Gusts12 kt Ceilingnone (clear) Visibility10+ mi Precipnone

SMF (destination) Gusts6 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 3648 · BOI → SMF

Odds over time