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 4563
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
WN 4563 · BNA → GSP
departs 8:40 PM CT · arrives 10:55 PM ET
Forecast issued Fri 2:00 PM ET · 8h before departure
Watch this flight
Other days
Today
Sat 10/3 27%
Mon 10/5 28%
Wed 10/7 24%
Odds over time
Arrive at GSP more than 15 minutes late?
39%
chance · ±0 pts
+2 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
39%
Leave 15+ late
49%
Arrive 1h+ late
15%
Cancelled
2%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
4.0d
2d
1d
12h
Now
Departs
Lands
Arrive at GSP more than 15 minutes late?
Calm-weather odds: 28% · changed +2 pts in 24h
+2 pts
39%
Yes 39%
No 61%
Leave BNA more than 15 minutes late?
Calm-weather odds: 30% · changed +11 pts in 24h
+11 pts
49%
Yes 49%
No 51%
Arrive at GSP more than an hour late?
Calm-weather odds: 5% · changed +9 pts in 24h
+9 pts
15%
Yes 15%
No 85%
Cancelled?
Calm-weather odds: <1% · changed +2 pts in 24h
+2 pts
2%
Yes 2%
No 98%
How late will it get to GSP?
On time or early
60%
15–30 min late
16%
30 min–1 hour late
8%
1–2 hours late
13%
Over 2 hours late
2%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 1,433 ft, 0.4 in of rain forecast at BNA that day
↑
Later flights pick up delays from earlier in the day
↑
8pm departures from BNA are often late
↓
BNA usually runs smoothly
↓
Mostly benign weather forecast at GSP
Weather at each end
BNA (origin)
Gusts 13 kt Ceiling 1,433 ft Visibility 8 mi Precip 0.44 in
GSP (destination)
Gusts 14 kt Ceiling 5,500 ft Visibility 10+ mi Precip none
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.