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 4597
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
WN 4597 · MDW → SDF
departs 7:45 PM CT · arrives 10:00 PM ET
Forecast issued Fri 6:00 PM ET · 3h before departure
Watch this flight
Other days
Today
Mon 10/5 18%
Odds over time
Arrive at SDF more than 15 minutes late?
22%
chance · ±0 pts
−10 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
22%
Leave 15+ late
26%
Arrive 1h+ late
6%
Cancelled
3%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
3.9d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at SDF more than 15 minutes late?
Calm-weather odds: 28% · changed −10 pts in 24h
−10 pts
22%
Yes 22%
No 78%
Leave MDW more than 15 minutes late?
Calm-weather odds: 34% · changed −9 pts in 24h
−9 pts
26%
Yes 26%
No 74%
Arrive at SDF more than an hour late?
Calm-weather odds: 9% · changed −3 pts in 24h
−3 pts
6%
Yes 6%
No 94%
Cancelled?
Calm-weather odds: <1% · changed +2 pts in 24h
+2 pts
3%
Yes 3%
No 97%
How late will it get to SDF?
On time or early
75%
15–30 min late
8%
30 min–1 hour late
8%
1–2 hours late
4%
Over 2 hours late
2%
Cancelled
3%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
7pm departures from MDW are often late
↑
Later flights pick up delays from earlier in the day
↑
WN's recent on-time record
↓
SDF usually runs smoothly
↓
Mostly benign weather forecast at MDW
Weather at each end
MDW (origin)
Gusts 15 kt Ceiling 1,500 ft Visibility 7 mi Precip 0.12 in
SDF (destination)
Gusts 19 kt Ceiling 700 ft Visibility 4 mi Precip 0.29 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.