Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 4583
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1
WN 4583 · FLL → HOU
departs 8:10 PM ET · arrives 9:45 PM CT
Forecast issued Tue 9:00 PM ET · 47h before departure
Watch this flight
Other days
Today 48%
Wed 9/30 56%
Thu 10/1
Fri 10/2 43%
Sat 10/3 42%
Sun 10/4 40%
Mon 10/5 31%
Odds over time
Arrive at HOU more than 15 minutes late?
64%
chance · ±4 pts
+0 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
64%
Leave 15+ late
55%
Arrive 1h+ late
21%
Cancelled
4%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
2.9d
Now
1d
12h
6h
Departs
Lands
Arrive at HOU more than 15 minutes late?
Calm-weather odds: 33% · changed +0 pts in 24h
+0 pts
64%
Yes 64%
No 36%
Leave FLL more than 15 minutes late?
Calm-weather odds: 38% · changed +3 pts in 24h
+3 pts
55%
Yes 55%
No 45%
Arrive at HOU more than an hour late?
Calm-weather odds: 7% · changed +0 pts in 24h
+0 pts
21%
Yes 21%
No 79%
Cancelled?
Calm-weather odds: <1% · changed +2 pts in 24h
+2 pts
4%
Yes 4%
No 96%
How late will it get to HOU?
On time or early
35%
15–30 min late
21%
30 min–1 hour late
19%
1–2 hours late
13%
Over 2 hours late
7%
Cancelled
4%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
0.8 in of rain, thunderstorms forecast at FLL that day
↑
8pm departures from FLL are often late
↑
Mostly benign weather forecast at HOU
↓
Thursdays in October are usually quieter than average
↓
FLL usually runs smoothly
Weather at each end
FLL (origin)
Gusts 24 kt Ceiling 2,600 ft Visibility 5 mi Precip 0.84 in
HOU (destination)
Gusts 21 kt Ceiling 4,300 ft Visibility 10+ mi Precip 0.14 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.