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 3944
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
WN 3944 · STL → MCI
departs 4:45 PM CT · arrives 5:50 PM CT
Forecast issued Fri 7:00 AM ET · 11h before departure
Watch this flight
Other days
Today
Mon 10/5 19%
Odds over time
Arrive at MCI more than 15 minutes late?
43%
chance · ±0 pts
+13 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
43%
Leave 15+ late
45%
Arrive 1h+ late
8%
Cancelled
3%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
3.8d
2d
1d
Now
6h
Departs
Lands
Arrive at MCI more than 15 minutes late?
Calm-weather odds: 27% · changed +13 pts in 24h
+13 pts
43%
Yes 43%
No 57%
Leave STL more than 15 minutes late?
Calm-weather odds: 31% · changed +5 pts in 24h
+5 pts
45%
Yes 45%
No 55%
Arrive at MCI more than an hour late?
Calm-weather odds: 6% · changed +3 pts in 24h
+3 pts
8%
Yes 8%
No 92%
Cancelled?
Calm-weather odds: <1% · changed +2 pts in 24h
+2 pts
3%
Yes 3%
No 97%
How late will it get to MCI?
On time or early
56%
15–30 min late
26%
30 min–1 hour late
8%
1–2 hours late
6%
Over 2 hours late
1%
Cancelled
3%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Later flights pick up delays from earlier in the day
↑
4pm departures from STL are often late
↑
Arrivals into MCI at that hour are often late
↓
MCI usually runs smoothly
↓
STL usually runs smoothly
Weather at each end
STL (origin)
Gusts 17 kt Ceiling 600 ft Visibility 10+ mi Precip 0.01 in
MCI (destination)
Gusts 15 kt Ceiling 2,700 ft Visibility 10+ mi Precip 0.05 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.