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 3573
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
WN 3573 · SAT → HOU
departs 6:30 PM CT · arrives 7:40 PM CT
Forecast issued Fri 1:00 PM ET · 6h before departure
Watch this flight
Other days
Today
Mon 10/5 20%
Wed 10/7 18%
Odds over time
Arrive at HOU more than 15 minutes late?
58%
chance · ±0 pts
+14 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
58%
Leave 15+ late
46%
Arrive 1h+ late
16%
Cancelled
10%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
3.9d
2d
1d
12h
Now
Departs
Lands
Arrive at HOU more than 15 minutes late?
Calm-weather odds: 41% · changed +14 pts in 24h
+14 pts
58%
Yes 58%
No 42%
Leave SAT more than 15 minutes late?
Calm-weather odds: 47% · changed +3 pts in 24h
+3 pts
46%
Yes 46%
No 54%
Arrive at HOU more than an hour late?
Calm-weather odds: 12% · changed +3 pts in 24h
+3 pts
16%
Yes 16%
No 84%
Cancelled?
Calm-weather odds: <1% · changed +9 pts in 24h
+9 pts
10%
Yes 10%
No 90%
How late will it get to HOU?
On time or early
38%
15–30 min late
22%
30 min–1 hour late
16%
1–2 hours late
11%
Over 2 hours late
3%
Cancelled
10%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 200 ft, visibility down to 0.25 mi, 0.3 in of rain forecast at SAT that day
↑
Later flights pick up delays from earlier in the day
↑
Visibility down to 1.25 mi, 0.6 in of rain forecast at HOU that day
↓
SAT usually runs smoothly
↓
Fridays in October are usually quieter than average
Weather at each end
SAT (origin)
Gusts 18 kt Ceiling 200 ft Visibility 0.25 mi Precip 1.06 in
HOU (destination)
Gusts 11 kt Ceiling 1,800 ft Visibility 1.25 mi Precip 0.61 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.