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 3675
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Today
WN 3675 · SJC → LAS
departs 7:50 PM PT · arrives 9:20 PM PT
Forecast issued Wed 10:00 PM ET · 1h before departure
Watch this flight
Other days
Wed 9/30
Today 28%
Fri 10/2 33%
Sun 10/4 22%
Mon 10/5 17%
Tue 10/6 10%
Wed 10/7 10%
Odds over time
Arrive at LAS more than 15 minutes late?
20%
chance · ±0 pts
+2 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
20%
Leave 15+ late
20%
Arrive 1h+ late
4%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
2.9d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at LAS more than 15 minutes late?
Calm-weather odds: 18% · changed +2 pts in 24h
+2 pts
20%
Yes 20%
No 80%
Leave SJC more than 15 minutes late?
Calm-weather odds: 20% · changed +1 pt in 24h
+1 pt
20%
Yes 20%
No 80%
Arrive at LAS more than an hour late?
Calm-weather odds: 4% · changed −1 pt in 24h
−1 pt
4%
Yes 4%
No 96%
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
79%
15–30 min late
9%
30 min–1 hour late
7%
1–2 hours late
3%
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
↑
7pm departures from SJC are often late
↓
Wednesdays in September are usually quieter than average
↓
Mostly benign weather forecast at LAS
Weather at each end
SJC (origin)
Gusts 11 kt Ceiling none (clear) Visibility 9 mi Precip none
LAS (destination)
Gusts 18 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.