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 4039
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Yesterday
WN 4039 · SRQ → MCI
departs 12:20 PM ET · arrives 2:05 PM CT
Forecast issued Sat 10:00 PM ET · 10h after departure
Watch this flight
Odds over time
Arrive at MCI more than 15 minutes late?
18%
chance · ±0 pts
+0 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
18%
Leave 15+ late
14%
Arrive 1h+ late
3%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
4.6d
2d
1d
12h
6h
Departs
Lands
Arrive at MCI more than 15 minutes late?
Calm-weather odds: 18% · changed +0 pts in 24h
+0 pts
18%
Yes 18%
No 82%
Leave SRQ more than 15 minutes late?
Calm-weather odds: 14% · changed −2 pts in 24h
−2 pts
14%
Yes 14%
No 86%
Arrive at MCI more than an hour late?
Calm-weather odds: 3% · changed −1 pt in 24h
−1 pt
3%
Yes 3%
No 97%
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
81%
15–30 min late
9%
30 min–1 hour late
6%
1–2 hours late
1%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
0.3 in of rain forecast at SRQ that day
↑
12pm departures from SRQ are often late
↑
Other factors
↓
Mostly benign weather forecast at MCI
↓
SRQ usually runs smoothly
Weather at each end
SRQ (origin)
Gusts 9 kt Ceiling 3,400 ft Visibility 10+ mi Precip none
MCI (destination)
Gusts 11 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.