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 3152
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Tomorrow
WN 3152 · DEN → STL
departs 11:40 AM MT · arrives 2:50 PM CT
Forecast issued Wed 2:00 AM ET · 36h before departure
Watch this flight
Other days
Today 39%
Thu 10/1
Fri 10/2 24%
Sat 10/3 20%
Sun 10/4 27%
Mon 10/5 19%
Tue 10/6 21%
Odds over time
Arrive at STL more than 15 minutes late?
22%
chance · ±5 pts
−10 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
22%
Leave 15+ late
31%
Arrive 1h+ late
4%
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: 18% · changed −10 pts in 24h
−10 pts
22%
Yes 22%
No 78%
Leave DEN more than 15 minutes late?
Calm-weather odds: 22% · changed −4 pts in 24h
−4 pts
31%
Yes 31%
No 69%
Arrive at STL more than an hour late?
Calm-weather odds: 2% · changed +0 pts in 24h
+0 pts
4%
Yes 4%
No 96%
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
77%
15–30 min late
9%
30 min–1 hour late
9%
1–2 hours late
3%
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
↑
11am departures from DEN are often late
↑
WN's recent on-time record
↑
Cloud base down to 600 ft forecast at STL that day
↓
STL usually runs smoothly
↓
Arrivals into STL at that hour are usually not late
Weather at each end
DEN (origin)
Gusts 20 kt Ceiling 8,000 ft Visibility 7 mi Precip 0.16 in
STL (destination)
Gusts 16 kt Ceiling 600 ft Visibility 3 mi Precip 0.18 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.