Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 4456
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4 Tomorrow
WN 4456 · MCI → HOU
departs 6:35 AM CT · arrives 8:40 AM CT
Forecast issued Sat 10:00 PM ET · 10h before departure
Watch this flight
Other days
Today
Mon 10/5 4%
Fri 10/9 3%
Odds over time
Arrive at HOU more than 15 minutes late?
13%
chance · ±0 pts
+9 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
13%
Leave 15+ late
10%
Arrive 1h+ late
3%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
5.4d
2d
1d
Now
6h
Departs
Lands
Arrive at HOU more than 15 minutes late?
Calm-weather odds: 3% · changed +9 pts in 24h
+9 pts
13%
Yes 13%
No 87%
Leave MCI more than 15 minutes late?
Calm-weather odds: 3% · changed +7 pts in 24h
+7 pts
10%
Yes 10%
No 90%
Arrive at HOU more than an hour late?
Calm-weather odds: <1% · changed +2 pts in 24h
+2 pts
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 HOU?
On time or early
86%
15–30 min late
11%
30 min–1 hour late
0%
1–2 hours late
2%
Over 2 hours late
<1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 500 ft, 0.4 in of rain forecast at HOU that day
↑
HOU is prone to delays
↓
Early flights usually leave on time
↓
Arrivals into HOU at that hour are usually not late
Weather at each end
MCI (origin)
Gusts 12 kt Ceiling none (clear) Visibility 10+ mi Precip none
HOU (destination)
Gusts 20 kt Ceiling 600 ft Visibility 5 mi Precip 0.16 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.