Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 4007
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
WN 4007 · BNA → GSP
departs 5:50 PM CT · arrives 8:00 PM ET
Forecast issued Fri 3:00 PM ET · 28h before departure
Watch this flight
Other days
Sat 10/3
Sun 10/4 2%
Odds over time
Arrive at GSP more than 15 minutes late?
27%
chance · ±0 pts
−5 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
27%
Leave 15+ late
32%
Arrive 1h+ late
5%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
4.9d
2d
Now
12h
6h
Departs
Lands
Arrive at GSP more than 15 minutes late?
Calm-weather odds: 19% · changed −5 pts in 24h
−5 pts
27%
Yes 27%
No 73%
Leave BNA more than 15 minutes late?
Calm-weather odds: 22% · changed +0 pts in 24h
+0 pts
32%
Yes 32%
No 68%
Arrive at GSP more than an hour late?
Calm-weather odds: 3% · changed −2 pts in 24h
−2 pts
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to GSP?
On time or early
73%
15–30 min late
13%
30 min–1 hour late
9%
1–2 hours late
3%
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
↑
5pm departures from BNA are often late
↑
Later flights pick up delays from earlier in the day
↑
Cloud base down to 400 ft, 0.4 in of rain forecast at GSP that day
↓
GSP usually runs smoothly
↓
Saturdays in October are usually quieter than average
Weather at each end
BNA (origin)
Gusts 11 kt Ceiling 700 ft Visibility 7 mi Precip 0.12 in
GSP (destination)
Gusts 10 kt Ceiling 400 ft Visibility 5 mi Precip 0.44 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.