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 4387
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2
WN 4387 · DAL → MCI
departs 9:15 PM CT · arrives 10:50 PM CT
Forecast issued Fri 10:00 PM ET · 0h before departure
Watch this flight
Other days
Fri 10/2
Mon 10/5 27%
Fri 10/9 37%
Odds over time
Arrive at MCI more than 15 minutes late?
48%
chance · ±2 pts
−2 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
48%
Leave 15+ late
54%
Arrive 1h+ late
16%
Cancelled
1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
4.0d
2d
1d
12h
6h
Departs
Lands
Arrive at MCI more than 15 minutes late?
Calm-weather odds: 44% · changed −2 pts in 24h
−2 pts
48%
Yes 48%
No 52%
Leave DAL more than 15 minutes late?
Calm-weather odds: 49% · changed −3 pts in 24h
−3 pts
54%
Yes 54%
No 46%
Arrive at MCI more than an hour late?
Calm-weather odds: 14% · changed +0 pts in 24h
+0 pts
16%
Yes 16%
No 84%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
1%
Yes 1%
No 99%
How late will it get to MCI?
On time or early
52%
15–30 min late
6%
30 min–1 hour late
25%
1–2 hours late
12%
Over 2 hours late
4%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 600 ft, 0.3 in of rain forecast at DAL that day
↑
Later flights pick up delays from earlier in the day
↑
9pm departures from DAL are often late
↓
Mostly benign weather forecast at MCI
↓
DAL is quiet at that time
Weather at each end
DAL (origin)
Gusts 22 kt Ceiling 600 ft Visibility 4 mi Precip 0.24 in
MCI (destination)
Gusts 12 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.