Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 1771
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Tomorrow
WN 1771 · DSM → LAS
departs 12:05 PM CT · arrives 1:10 PM PT
Forecast issued Tue 11:00 PM ET · 38h before departure
Watch this flight
Other days
Today 23%
Thu 10/1
Fri 10/2 11%
Sun 10/4 11%
Mon 10/5 12%
Tue 10/6 10%
Odds over time
Arrive at LAS more than 15 minutes late?
19%
chance · ±2 pts
+1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
19%
Leave 15+ late
20%
Arrive 1h+ late
6%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.8d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at LAS more than 15 minutes late?
Calm-weather odds: 10% · changed +1 pt in 24h
+1 pt
19%
Yes 19%
No 81%
Leave DSM more than 15 minutes late?
Calm-weather odds: 14% · changed −2 pts in 24h
−2 pts
20%
Yes 20%
No 80%
Arrive at LAS more than an hour late?
Calm-weather odds: 3% · changed +0 pts in 24h
+0 pts
6%
Yes 6%
No 94%
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
80%
15–30 min late
8%
30 min–1 hour late
5%
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
↑
Cloud base down to 300 ft, 2.5 in of rain forecast at DSM that day
↑
LAS is prone to delays
↑
WN's recent on-time record
↓
Mostly benign weather forecast at LAS
↓
12pm departures from DSM are usually not late
Weather at each end
DSM (origin)
Gusts 17 kt Ceiling 300 ft Visibility 3 mi Precip 2.50 in
LAS (destination)
Gusts 9 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.