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 3791
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Tomorrow
WN 3791 · LAS → SNA
departs 7:10 PM PT · arrives 8:25 PM PT
Forecast issued Tue 6:00 PM ET · 28h before departure
Watch this flight
Other days
Today 37%
Wed 9/30
Odds over time
Arrive at SNA more than 15 minutes late?
14%
chance · ±5 pts
+0 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
14%
Leave 15+ late
28%
Arrive 1h+ late
3%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.8d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at SNA more than 15 minutes late?
Calm-weather odds: 11% · changed +0 pts in 24h
+0 pts
14%
Yes 14%
No 86%
Leave LAS more than 15 minutes late?
Calm-weather odds: 27% · changed +1 pt in 24h
+1 pt
28%
Yes 28%
No 72%
Arrive at SNA 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 SNA?
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
↑
WN's recent on-time record
↑
Later flights pick up delays from earlier in the day
↑
7pm departures from LAS are often late
↓
Wednesdays in September are usually quieter than average
↓
Mostly benign weather forecast at LAS
Weather at each end
LAS (origin)
Gusts 18 kt Ceiling none (clear) Visibility 10+ mi Precip none
SNA (destination)
Gusts 16 kt Ceiling 1,500 ft Visibility 7 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.