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 3583
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Today
WN 3583 · SAT → MDW
departs 9:25 AM CT · arrives 12:00 PM CT
Forecast issued Sat 12:00 AM ET · 10h before departure
Watch this flight
Other days
Today
Sun 10/4 4%
Mon 10/5 6%
Fri 10/9 4%
Odds over time
Arrive at MDW more than 15 minutes late?
16%
chance · ±0 pts
+5 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
16%
Leave 15+ late
28%
Arrive 1h+ late
8%
Cancelled
8%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.5d
2d
1d
Now
6h
Departs
Lands
Arrive at MDW more than 15 minutes late?
Calm-weather odds: 9% · changed +5 pts in 24h
+5 pts
16%
Yes 16%
No 84%
Leave SAT more than 15 minutes late?
Calm-weather odds: 9% · changed +16 pts in 24h
+16 pts
28%
Yes 28%
No 72%
Arrive at MDW more than an hour late?
Calm-weather odds: 2% · changed +6 pts in 24h
+6 pts
8%
Yes 8%
No 92%
Cancelled?
Calm-weather odds: <1% · changed +7 pts in 24h
+7 pts
8%
Yes 8%
No 92%
How late will it get to MDW?
On time or early
78%
15–30 min late
10%
30 min–1 hour late
0%
1–2 hours late
4%
Over 2 hours late
<1%
Cancelled
8%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 900 ft forecast at SAT that day
↑
Other factors
↑
This flight has been late 19% of the time recently
↓
9am departures from SAT are usually not late
↓
Mostly benign weather forecast at MDW
Weather at each end
SAT (origin)
Gusts 22 kt Ceiling 900 ft Visibility 8 mi Precip 0.07 in
MDW (destination)
Gusts 8 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.