Schedule: a typical Tuesday (the flights of Jul 28, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 3675
SCHEDULED · TYPICAL SCHEDULE
Tuesday, September 29 Yesterday
WN 3675 · SJC → LAS
departs 7:50 PM PT · arrives 9:20 PM PT
Forecast issued Tue 10:00 PM ET · 1h before departure
Watch this flight
Other days
Tue 9/29
Today 30%
Thu 10/1 26%
Fri 10/2 33%
Sat 10/3 12%
Sun 10/4 22%
Mon 10/5 17%
Tue 10/6 10%
Odds over time
Arrive at LAS more than 15 minutes late?
30%
chance · ±0 pts
+8 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
30%
Leave 15+ late
32%
Arrive 1h+ late
13%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.9d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at LAS more than 15 minutes late?
Calm-weather odds: 33% · changed +8 pts in 24h
+8 pts
30%
Yes 30%
No 70%
Leave SJC more than 15 minutes late?
Calm-weather odds: 31% · changed +13 pts in 24h
+13 pts
32%
Yes 32%
No 68%
Arrive at LAS more than an hour late?
Calm-weather odds: 11% · changed +7 pts in 24h
+7 pts
13%
Yes 13%
No 87%
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
70%
15–30 min late
8%
30 min–1 hour late
9%
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
↑
Arrivals into LAS at that hour are often late
↑
LAS is prone to delays
↑
Later flights pick up delays from earlier in the day
↓
Tuesdays in September are usually quieter than average
↓
Mostly benign weather forecast at SJC
Weather at each end
SJC (origin)
Gusts 12 kt Ceiling none (clear) Visibility 8 mi Precip none
LAS (destination)
Gusts 27 kt Ceiling 4,700 ft Visibility 7 mi Precip 0.08 in
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.