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 3632
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Tomorrow
WN 3632 · SEA → STL
departs 9:00 AM PT · arrives 2:50 PM CT
Forecast issued Wed 7:00 PM ET · 17h before departure
Watch this flight
Other days
Today 23%
Thu 10/1
Fri 10/2 23%
Mon 10/5 22%
Tue 10/6 24%
Odds over time
Arrive at STL more than 15 minutes late?
19%
chance · ±1 pts
+1 pt · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
19%
Leave 15+ late
17%
Arrive 1h+ late
4%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.8d
2d
1d
Now
12h
6h
Departs
Lands
Arrive at STL more than 15 minutes late?
Calm-weather odds: 17% · changed +1 pt in 24h
+1 pt
19%
Yes 19%
No 81%
Leave SEA more than 15 minutes late?
Calm-weather odds: 16% · changed +0 pts in 24h
+0 pts
17%
Yes 17%
No 83%
Arrive at STL more than an hour late?
Calm-weather odds: 3% · 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
81%
15–30 min late
10%
30 min–1 hour late
5%
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
↑
Cloud base down to 967 ft, 0.3 in of rain forecast at STL that day
↑
SEA is prone to delays
↑
WN's recent on-time record
↓
Mostly benign weather forecast at SEA
↓
Early flights usually leave on time
Weather at each end
SEA (origin)
Gusts 7 kt Ceiling 9,000 ft Visibility 9 mi Precip none
STL (destination)
Gusts 17 kt Ceiling 733 ft Visibility 4.66667 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.