Schedule: a typical Friday (the flights of Jul 31, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.

SOUTHWEST · FLIGHT WN 3684 SCHEDULED · TYPICAL SCHEDULE

Friday, October 2 Tomorrow

WN 3684 · SJC → LGB

departs 5:05 PM PT · arrives 6:25 PM PT

Forecast issued Thu 4:00 PM ET · 28h before departure

Arrive at LGB more than 15 minutes late?

30% chance · ±2 pts +4 pts · 24h

HOW SURE WE ARE Moderate. The odds now blend history with early weather forecasts.

How late will it get to LGB?

On time or early
70%
15–30 min late
16%
30 min–1 hour late
<1%
1–2 hours late
10%
Over 2 hours late
3%
Cancelled
<1%

Gate arrival compared with the scheduled arrival. The ranges add up to 100%.

What’s moving the odds

↑ WN's recent on-time record

↑ Later flights pick up delays from earlier in the day

↑ Arrivals into LGB at that hour are often late

↓ Cloud base down to 600 ft forecast at LGB that day

↓ Mostly benign weather forecast at SJC

Weather at each end

SJC (origin) Gusts9 kt Ceiling700 ft Visibility2 mi Precipnone

LGB (destination) Gusts12 kt Ceiling100 ft Visibility0.8 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 3684 · SJC → LGB

Odds over time

How late will it get to LGB?