Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 3676
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Tomorrow
WN 3676 · SJC → LAS
departs 8:55 PM PT · arrives 10:25 PM PT
Forecast issued Tue 9:00 PM ET · 27h before departure
Watch this flight
Other days
Today 22%
Wed 9/30
Odds over time
Arrive at LAS more than 15 minutes late?
15%
chance · ±2 pts
+1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
15%
Leave 15+ late
17%
Arrive 1h+ late
3%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.9d
2d
Now
12h
6h
Departs
Lands
Arrive at LAS more than 15 minutes late?
Calm-weather odds: 13% · changed +1 pt in 24h
+1 pt
15%
Yes 15%
No 85%
Leave SJC more than 15 minutes late?
Calm-weather odds: 17% · changed +3 pts in 24h
+3 pts
17%
Yes 17%
No 83%
Arrive at LAS more than an hour late?
Calm-weather odds: 3% · changed +0 pts in 24h
+0 pts
3%
Yes 3%
No 97%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to LAS?
On time or early
85%
15–30 min late
6%
30 min–1 hour late
5%
1–2 hours late
2%
Over 2 hours late
<1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Arrivals into LAS at that hour are often late
↑
Later flights pick up delays from earlier in the day
↑
WN's recent on-time record
↓
Wednesdays in September are usually quieter than average
↓
Mostly benign weather forecast at LAS
Weather at each end
SJC (origin)
Gusts 13 kt Ceiling none (clear) Visibility 8 mi Precip none
LAS (destination)
Gusts 16 kt Ceiling none (clear) Visibility 10+ mi Precip none
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.