Schedule: a typical summer Friday (the flights of Jul 31, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 3552
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
WN 3552 · SAN → STL
departs 1:30 PM PT · arrives 7:05 PM CT
Forecast issued Fri 10:00 PM ET · 6h after departure
Watch this flight
Other days
Fri 10/2
Today 26%
Mon 10/5 32%
Fri 10/9 33%
Odds over time
Arrive at STL more than 15 minutes late?
37%
chance · ±0 pts
−4 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
37%
Leave 15+ late
40%
Arrive 1h+ late
6%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
3.8d
2d
1d
12h
6h
Departs
Lands
Arrive at STL more than 15 minutes late?
Calm-weather odds: 37% · changed −4 pts in 24h
−4 pts
37%
Yes 37%
No 63%
Leave SAN more than 15 minutes late?
Calm-weather odds: 40% · changed +1 pt in 24h
+1 pt
40%
Yes 40%
No 60%
Arrive at STL more than an hour late?
Calm-weather odds: 6% · changed −1 pt in 24h
−1 pt
6%
Yes 6%
No 94%
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
62%
15–30 min late
14%
30 min–1 hour late
17%
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
↑
1pm departures from SAN are often late
↑
WN's recent on-time record
↑
SAN is prone to delays
↓
STL usually runs smoothly
Weather at each end
SAN (origin)
Gusts 19 kt Ceiling 300 ft Visibility 2.5 mi Precip none
STL (destination)
Gusts 20 kt Ceiling 600 ft Visibility 9 mi Precip 0.01 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.