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 3743
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Today
WN 3743 · MDW → SDF
departs 1:25 PM CT · arrives 3:35 PM ET
Forecast issued Wed 6:00 PM ET · 4h after departure
Watch this flight
Other days
Today
Thu 10/1 56%
Fri 10/2 33%
Sun 10/4 22%
Mon 10/5 17%
Tue 10/6 16%
Odds over time
Arrive at SDF more than 15 minutes late?
41%
chance · ±0 pts
+13 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
41%
Leave 15+ late
39%
Arrive 1h+ late
9%
Cancelled
3%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.9d
2d
1d
12h
6h
Departs
Lands
Arrive at SDF more than 15 minutes late?
Calm-weather odds: 41% · changed +13 pts in 24h
+13 pts
41%
Yes 41%
No 59%
Leave MDW more than 15 minutes late?
Calm-weather odds: 39% · changed +7 pts in 24h
+7 pts
39%
Yes 39%
No 61%
Arrive at SDF more than an hour late?
Calm-weather odds: 9% · changed +2 pts in 24h
+2 pts
9%
Yes 9%
No 91%
Cancelled?
Calm-weather odds: 3% · changed +1 pt in 24h
+1 pt
3%
Yes 3%
No 97%
How late will it get to SDF?
On time or early
57%
15–30 min late
20%
30 min–1 hour late
11%
1–2 hours late
6%
Over 2 hours late
3%
Cancelled
3%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 800 ft, visibility down to 2.5 mi, 0.8 in of rain forecast at MDW that day
↑
1pm departures from MDW are often late
↑
WN's recent on-time record
↓
Wednesdays in September are usually quieter than average
↓
Mostly benign weather forecast at SDF
Weather at each end
MDW (origin)
Gusts 19 kt Ceiling 800 ft Visibility 2.5 mi Precip 0.84 in
SDF (destination)
Gusts 16 kt Ceiling none (clear) Visibility 6 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.