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 3317
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Tomorrow
WN 3317 · DEN → STL
departs 8:45 PM MT · arrives 11:55 PM CT
Forecast issued Wed 3:00 PM ET · 32h before departure
Watch this flight
Other days
Today 47%
Thu 10/1
Fri 10/2 41%
Sun 10/4 36%
Mon 10/5 29%
Odds over time
Arrive at STL more than 15 minutes late?
37%
chance · ±6 pts
−4 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
37%
Leave 15+ late
44%
Arrive 1h+ late
7%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.9d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at STL more than 15 minutes late?
Calm-weather odds: 31% · changed −4 pts in 24h
−4 pts
37%
Yes 37%
No 63%
Leave DEN more than 15 minutes late?
Calm-weather odds: 38% · changed −1 pt in 24h
−1 pt
44%
Yes 44%
No 56%
Arrive at STL more than an hour late?
Calm-weather odds: 4% · changed −2 pts in 24h
−2 pts
7%
Yes 7%
No 93%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to STL?
On time or early
63%
15–30 min late
9%
30 min–1 hour late
21%
1–2 hours late
5%
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
↑
8pm departures from DEN are often late
↑
Cloud base down to 967 ft, 0.3 in of rain forecast at STL that day
↑
Later flights pick up delays from earlier in the day
↓
Mostly benign weather forecast at DEN
↓
STL usually runs smoothly
Weather at each end
DEN (origin)
Gusts 21 kt Ceiling 8,000 ft Visibility 10+ mi Precip none
STL (destination)
Gusts 17 kt Ceiling 967 ft Visibility 6 mi Precip 0.32 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.