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 1523
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
WN 1523 · DEN → DAL
departs 8:30 PM MT · arrives 11:30 PM CT
Forecast issued Thu 11:00 PM ET · 48h before departure
Watch this flight
Other days
Today 44%
Sat 10/3
Sun 10/4 34%
Mon 10/5 29%
Tue 10/6 22%
Wed 10/7 21%
Odds over time
Arrive at DAL more than 15 minutes late?
31%
chance · ±9 pts
+1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
31%
Leave 15+ late
37%
Arrive 1h+ late
9%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
5.0d
Now
1d
12h
6h
Departs
Lands
Arrive at DAL more than 15 minutes late?
Calm-weather odds: 20% · changed +1 pt in 24h
+1 pt
31%
Yes 31%
No 69%
Leave DEN more than 15 minutes late?
Calm-weather odds: 25% · changed +1 pt in 24h
+1 pt
37%
Yes 37%
No 63%
Arrive at DAL more than an hour late?
Calm-weather odds: 3% · changed +3 pts in 24h
+3 pts
9%
Yes 9%
No 91%
Cancelled?
Calm-weather odds: <1% · changed +1 pt in 24h
+1 pt
1%
Yes 1%
No 99%
How late will it get to DAL?
On time or early
68%
15–30 min late
12%
30 min–1 hour late
9%
1–2 hours late
7%
Over 2 hours late
3%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 400 ft, 0.5 in of rain forecast at DAL that day
↑
8pm departures from DEN are often late
↑
Later flights pick up delays from earlier in the day
↓
Mostly benign weather forecast at DEN
↓
Saturdays in October are usually quieter than average
Weather at each end
DEN (origin)
Gusts 20 kt Ceiling none (clear) Visibility 10+ mi Precip none
DAL (destination)
Gusts 14 kt Ceiling 400 ft Visibility 3 mi Precip 0.48 in
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.