Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 4239
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
WN 4239 · LAS → SNA
departs 3:55 PM PT · arrives 5:10 PM PT
Forecast issued Fri 7:00 AM ET · 36h before departure
Watch this flight
Odds over time
Arrive at SNA more than 15 minutes late?
17%
chance · ±2 pts
+0 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
17%
Leave 15+ late
28%
Arrive 1h+ late
5%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.9d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at SNA more than 15 minutes late?
Calm-weather odds: 12% · changed +0 pts in 24h
+0 pts
17%
Yes 17%
No 83%
Leave LAS more than 15 minutes late?
Calm-weather odds: 24% · changed +0 pts in 24h
+0 pts
28%
Yes 28%
No 72%
Arrive at SNA more than an hour late?
Calm-weather odds: 3% · changed +0 pts in 24h
+0 pts
5%
Yes 5%
No 95%
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
82%
15–30 min late
8%
30 min–1 hour late
4%
1–2 hours late
4%
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
↑
Later flights pick up delays from earlier in the day
↑
LAS is prone to delays
↓
Mostly benign weather forecast at LAS
↓
Mostly benign weather forecast at SNA
Weather at each end
LAS (origin)
Gusts 11 kt Ceiling none (clear) Visibility 10+ mi Precip none
SNA (destination)
Gusts 13 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.