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 4371
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
WN 4371 · BNA → SAT
departs 2:25 PM CT · arrives 4:45 PM CT
Forecast issued Fri 10:00 AM ET · 5h before departure
Watch this flight
Other days
Today
Sun 10/4 39%
Mon 10/5 17%
Tue 10/6 14%
Wed 10/7 13%
Odds over time
Arrive at SAT more than 15 minutes late?
72%
chance · ±0 pts
+31 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
72%
Leave 15+ late
54%
Arrive 1h+ late
22%
Cancelled
1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
25%
50%
75%
100%
3.7d
2d
1d
12h
Now
Departs
Lands
Arrive at SAT more than 15 minutes late?
Calm-weather odds: 19% · changed +31 pts in 24h
+31 pts
72%
Yes 72%
No 28%
Leave BNA more than 15 minutes late?
Calm-weather odds: 21% · changed +24 pts in 24h
+24 pts
54%
Yes 54%
No 46%
Arrive at SAT more than an hour late?
Calm-weather odds: 5% · changed +12 pts in 24h
+12 pts
22%
Yes 22%
No 78%
Cancelled?
Calm-weather odds: <1% · changed +1 pt in 24h
+1 pt
1%
Yes 1%
No 99%
How late will it get to SAT?
On time or early
28%
15–30 min late
39%
30 min–1 hour late
11%
1–2 hours late
18%
Over 2 hours late
3%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 500 ft, 0.3 in of rain forecast at BNA that day
↑
Cloud base down to 400 ft, 0.5 in of rain forecast at SAT that day
↑
2pm departures from BNA are often late
↓
BNA usually runs smoothly
↓
Fridays in October are usually quieter than average
Weather at each end
BNA (origin)
Gusts 12 kt Ceiling 1,100 ft Visibility 2 mi Precip 0.69 in
SAT (destination)
Gusts 16 kt Ceiling 200 ft Visibility 0.25 mi Precip 0.33 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.