Schedule: the flights that flew on Monday, Oct 26, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 1531
SCHEDULED · TYPICAL SCHEDULE
Monday, November 2 Tomorrow
WN 1531 · SAN → LAS
departs 8:01 PM PT · arrives 9:24 PM PT
Forecast issued Sun 2:00 AM ET · 45h before departure
Watch this flight
Other days
Mon 11/2
Thu 11/5 48%
Fri 11/6 56%
Odds over time
Arrive at LAS more than 15 minutes late?
35%
chance · ±7 pts
+2 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
35%
Leave 15+ late
45%
Arrive 1h+ late
8%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
7.0d
Now
1d
12h
6h
Departs
Lands
Arrive at LAS more than 15 minutes late?
Calm-weather odds: 30% · changed +2 pts in 24h
+2 pts
35%
Yes 35%
No 65%
Leave SAN more than 15 minutes late?
Calm-weather odds: 42% · changed +4 pts in 24h
+4 pts
45%
Yes 45%
No 55%
Arrive at LAS more than an hour late?
Calm-weather odds: 6% · changed +1 pt in 24h
+1 pt
8%
Yes 8%
No 92%
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
64%
15–30 min late
13%
30 min–1 hour late
14%
1–2 hours late
6%
Over 2 hours late
2%
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
↑
8pm departures from SAN are often late
↓
Mostly benign weather forecast at LAS
↓
Mondays in November are usually quieter than average
Weather at each end
SAN (origin)
Gusts 11 kt Ceiling none (clear) Visibility 10+ mi Precip 0.03 in
LAS (destination)
Gusts 11 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.