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 1536
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
WN 1536 · DSM → LAS
departs 12:15 PM CT · arrives 1:20 PM PT
Forecast issued Thu 11:00 PM ET · 38h before departure
Watch this flight
Odds over time
Arrive at LAS more than 15 minutes late?
8%
chance · ±1 pts
+0 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
8%
Leave 15+ late
12%
Arrive 1h+ late
2%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
3%
6%
9%
12%
4.6d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at LAS more than 15 minutes late?
Calm-weather odds: 7% · changed +0 pts in 24h
+0 pts
8%
Yes 8%
No 92%
Leave DSM more than 15 minutes late?
Calm-weather odds: 11% · changed −1 pt in 24h
−1 pt
12%
Yes 12%
No 88%
Arrive at LAS more than an hour late?
Calm-weather odds: 2% · changed +0 pts in 24h
+0 pts
2%
Yes 2%
No 98%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 100%
How late will it get to LAS?
On time or early
92%
15–30 min late
4%
30 min–1 hour late
3%
1–2 hours late
<1%
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
↑
LAS is prone to delays
↑
Arrivals into LAS at that hour are often late
↓
Mostly benign weather forecast at LAS
↓
Mostly benign weather forecast at DSM
Weather at each end
DSM (origin)
Gusts 14 kt
Ceiling none (clear)
Visibility 10+ mi
Precip none
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.