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 1423
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
WN 1423 · FAT → DEN
departs 1:55 PM PT · arrives 5:10 PM MT
Forecast issued Fri 11:00 PM ET · 18h before departure
Watch this flight
Other days
Today
Sun 10/4 19%
Mon 10/5 20%
Fri 10/9 20%
Odds over time
Arrive at DEN more than 15 minutes late?
34%
chance · ±6 pts
+8 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
34%
Leave 15+ late
31%
Arrive 1h+ late
9%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
4.8d
2d
1d
Now
12h
6h
Departs
Lands
Arrive at DEN more than 15 minutes late?
Calm-weather odds: 26% · changed +8 pts in 24h
+8 pts
34%
Yes 34%
No 66%
Leave FAT more than 15 minutes late?
Calm-weather odds: 24% · changed +8 pts in 24h
+8 pts
31%
Yes 31%
No 69%
Arrive at DEN more than an hour late?
Calm-weather odds: 5% · changed +1 pt in 24h
+1 pt
9%
Yes 9%
No 91%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 100%
How late will it get to DEN?
On time or early
66%
15–30 min late
18%
30 min–1 hour late
7%
1–2 hours late
7%
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
↑
Arrivals into DEN at that hour are often late
↑
FAT is prone to delays
↑
Other factors
↓
Gusts to 27 kt forecast at DEN that day
↓
Mostly benign weather forecast at FAT
Weather at each end
FAT (origin)
Gusts 8 kt Ceiling none (clear) Visibility 10+ mi Precip none
DEN (destination)
Gusts 27 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.