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 665
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4
WN 665 · BNA → SAT
departs 10:50 PM CT · arrives 1:10 AM CT
Forecast issued Fri 9:00 AM ET · 63h before departure
Watch this flight
Other days
Sat 10/3 28%
Sun 10/4
Tue 10/6 18%
Wed 10/7 15%
Thu 10/8 19%
Odds over time
Arrive at SAT more than 15 minutes late?
39%
chance · ±3 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
39%
Leave 15+ late
40%
Arrive 1h+ late
9%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.1d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at SAT more than 15 minutes late?
Calm-weather odds: 23% · changed – in 24h
–
39%
Yes 39%
No 61%
Leave BNA more than 15 minutes late?
Calm-weather odds: 32% · changed – in 24h
–
40%
Yes 40%
No 60%
Arrive at SAT more than an hour late?
Calm-weather odds: 5% · changed – in 24h
–
9%
Yes 9%
No 91%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
<1%
Yes <1%
No 99%
How late will it get to SAT?
On time or early
61%
15–30 min late
20%
30 min–1 hour late
10%
1–2 hours late
8%
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
↑
10pm departures from BNA are often late
↑
Later flights pick up delays from earlier in the day
↑
Arrivals into SAT at that hour are often late
↓
Sundays in October are usually quieter than average
↓
BNA usually runs smoothly
Weather at each end
BNA (origin)
Gusts 11 kt Ceiling 200 ft Visibility 4 mi Precip 0.25 in
SAT (destination)
Gusts 27 kt Ceiling 1,400 ft Visibility 10+ mi Precip 0.06 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.