Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 4638
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Today
WN 4638 · FLL → BNA
departs 8:25 AM ET · arrives 9:40 AM CT
Forecast issued Wed 4:00 PM ET · 8h after departure
Watch this flight
Other days
Today
Thu 10/1 23%
Fri 10/2 11%
Sun 10/4 7%
Mon 10/5 8%
Tue 10/6 6%
Odds over time
Arrive at BNA more than 15 minutes late?
8%
chance · ±0 pts
−2 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
8%
Leave 15+ late
6%
Arrive 1h+ late
2%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
2.9d
2d
1d
12h
6h
Departs
Lands
Arrive at BNA more than 15 minutes late?
Calm-weather odds: 8% · changed −2 pts in 24h
−2 pts
8%
Yes 8%
No 92%
Leave FLL more than 15 minutes late?
Calm-weather odds: 6% · changed −2 pts in 24h
−2 pts
6%
Yes 6%
No 94%
Arrive at BNA more than an hour late?
Calm-weather odds: 2% · changed +0 pts in 24h
+0 pts
2%
Yes 2%
No 98%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to BNA?
On time or early
91%
15–30 min late
4%
30 min–1 hour late
2%
1–2 hours late
1%
Over 2 hours late
<1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
This flight has been late 16% of the time recently
↑
Mostly benign weather forecast at FLL
↓
Wednesdays in September are usually quieter than average
↓
Early flights usually leave on time
Weather at each end
FLL (origin)
Gusts 23 kt Ceiling 6,500 ft Visibility 10+ mi Precip 0.16 in
BNA (destination)
Gusts 15 kt Ceiling none (clear) 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.