Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 3566
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4
WN 3566 · SAT → HOU
departs 9:45 AM CT · arrives 10:50 AM CT
Forecast issued Fri 1:00 PM ET · 46h before departure
Watch this flight
Other days
Today 41%
Sun 10/4
Mon 10/5 19%
Wed 10/7 12%
Odds over time
Arrive at HOU more than 15 minutes late?
15%
chance · ±3 pts
−1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
15%
Leave 15+ late
13%
Arrive 1h+ late
3%
Cancelled
2%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
5.5d
Now
1d
12h
6h
Departs
Lands
Arrive at HOU more than 15 minutes late?
Calm-weather odds: 6% · changed −1 pt in 24h
−1 pt
15%
Yes 15%
No 85%
Leave SAT more than 15 minutes late?
Calm-weather odds: 5% · changed +0 pts in 24h
+0 pts
13%
Yes 13%
No 87%
Arrive at HOU more than an hour late?
Calm-weather odds: 2% · changed −1 pt in 24h
−1 pt
3%
Yes 3%
No 97%
Cancelled?
Calm-weather odds: <1% · changed −1 pt in 24h
−1 pt
2%
Yes 2%
No 98%
How late will it get to HOU?
On time or early
83%
15–30 min late
5%
30 min–1 hour late
6%
1–2 hours late
2%
Over 2 hours late
1%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 600 ft, 0.5 in of rain forecast at HOU that day
↑
Gusts to 27 kt, cloud base down to 1,400 ft forecast at SAT that day
↑
HOU is prone to delays
↓
Arrivals into HOU at that hour are usually not late
↓
9am departures from SAT are usually not late
Weather at each end
SAT (origin)
Gusts 27 kt Ceiling 1,300 ft Visibility 10+ mi Precip 0.06 in
HOU (destination)
Gusts 19 kt Ceiling 1,000 ft Visibility 10+ mi Precip 0.52 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.