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 4563
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
WN 4563 · BNA → GSP
departs 8:40 PM CT · arrives 10:55 PM ET
Forecast issued Fri 1:00 PM ET · 33h before departure
Watch this flight
Other days
Today 36%
Sat 10/3
Mon 10/5 28%
Wed 10/7 24%
Odds over time
Arrive at GSP more than 15 minutes late?
26%
chance · ±2 pts
−7 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
26%
Leave 15+ late
31%
Arrive 1h+ late
4%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
5.0d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at GSP more than 15 minutes late?
Calm-weather odds: 19% · changed −7 pts in 24h
−7 pts
26%
Yes 26%
No 74%
Leave BNA more than 15 minutes late?
Calm-weather odds: 22% · changed −2 pts in 24h
−2 pts
31%
Yes 31%
No 69%
Arrive at GSP more than an hour late?
Calm-weather odds: 3% · changed −1 pt in 24h
−1 pt
4%
Yes 4%
No 96%
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
11%
30 min–1 hour late
10%
1–2 hours late
2%
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
↑
Cloud base down to 500 ft, 0.4 in of rain forecast at GSP that day
↑
This flight has been late 42% of the time recently
↑
Later flights pick up delays from earlier in the day
↓
Saturdays in October are usually quieter than average
↓
GSP usually runs smoothly
Weather at each end
BNA (origin)
Gusts 10 kt Ceiling 600 ft Visibility 6 mi Precip 0.14 in
GSP (destination)
Gusts 11 kt Ceiling 400 ft Visibility 5 mi Precip 0.38 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.