Schedule: a typical Saturday (the flights of Jul 25, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 1559
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
WN 1559 · DEN → LAS
departs 6:35 AM MT · arrives 7:30 AM PT
Forecast issued Wed 7:00 PM ET · 62h before departure
Watch this flight
Other days
Today 7%
Thu 10/1 9%
Fri 10/2 6%
Sat 10/3
Mon 10/5 8%
Tue 10/6 6%
Odds over time
Arrive at LAS more than 15 minutes late?
3%
chance · ±1 pts
+0 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
3%
Leave 15+ late
5%
Arrive 1h+ late
<1%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
3%
6%
9%
12%
4.4d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at LAS more than 15 minutes late?
Calm-weather odds: 4% · changed +0 pts in 24h
+0 pts
3%
Yes 3%
No 97%
Leave DEN more than 15 minutes late?
Calm-weather odds: 4% · changed +1 pt in 24h
+1 pt
5%
Yes 5%
No 95%
Arrive at LAS more than an hour late?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
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
96%
15–30 min late
2%
30 min–1 hour late
<1%
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
↑
DEN is busy at that time
↑
LAS is prone to delays
↑
Other factors
↓
Early flights usually leave on time
↓
WN's recent on-time record
Weather at each end
DEN (origin)
Gusts 17 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.