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 1223
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
WN 1223 · COS → HOU
departs 9:35 AM MT · arrives 1:05 PM CT
Forecast issued Fri 7:00 AM ET · 5h before departure
Watch this flight
Other days
Today
Sun 10/4 32%
Mon 10/5 12%
Tue 10/6 13%
Wed 10/7 12%
Odds over time
Arrive at HOU more than 15 minutes late?
31%
chance · ±0 pts
+15 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
31%
Leave 15+ late
27%
Arrive 1h+ late
4%
Cancelled
9%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
3.6d
2d
1d
12h
Now
Departs
Lands
Arrive at HOU more than 15 minutes late?
Calm-weather odds: 20% · changed +15 pts in 24h
+15 pts
31%
Yes 31%
No 69%
Leave COS more than 15 minutes late?
Calm-weather odds: 21% · changed +13 pts in 24h
+13 pts
27%
Yes 27%
No 73%
Arrive at HOU more than an hour late?
Calm-weather odds: 6% · changed +1 pt in 24h
+1 pt
4%
Yes 4%
No 96%
Cancelled?
Calm-weather odds: <1% · changed +8 pts in 24h
+8 pts
9%
Yes 9%
No 91%
How late will it get to HOU?
On time or early
63%
15–30 min late
9%
30 min–1 hour late
15%
1–2 hours late
<1%
Over 2 hours late
3%
Cancelled
9%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Visibility down to 1.25 mi, 1.0 in of rain forecast at HOU that day
↑
COS is prone to delays
↑
Arrivals into HOU at that hour are often late
↓
Gusts to 28 kt forecast at COS that day
↓
Early flights usually leave on time
Weather at each end
COS (origin)
Gusts 28 kt Ceiling 200 ft Visibility 0.25 mi Precip none
HOU (destination)
Gusts 11 kt Ceiling 1,800 ft Visibility 1.25 mi Precip 0.55 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.