Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 4385
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Today
WN 4385 · HOU → COS
departs 2:40 PM CT · arrives 4:00 PM MT
Forecast issued Thu 12:00 AM ET · 16h before departure
Watch this flight
Other days
Today
Fri 10/2 44%
Sun 10/4 26%
Mon 10/5 32%
Tue 10/6 21%
Wed 10/7 20%
Odds over time
Arrive at COS more than 15 minutes late?
46%
chance · ±1 pts
+0 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
46%
Leave 15+ late
47%
Arrive 1h+ late
13%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
2.8d
2d
1d
Now
12h
6h
Departs
Lands
Arrive at COS more than 15 minutes late?
Calm-weather odds: 27% · changed +0 pts in 24h
+0 pts
46%
Yes 46%
No 54%
Leave HOU more than 15 minutes late?
Calm-weather odds: 36% · changed +8 pts in 24h
+8 pts
47%
Yes 47%
No 53%
Arrive at COS more than an hour late?
Calm-weather odds: 6% · changed −1 pt in 24h
−1 pt
13%
Yes 13%
No 87%
Cancelled?
Calm-weather odds: <1% · changed −1 pt in 24h
−1 pt
<1%
Yes <1%
No 99%
How late will it get to COS?
On time or early
54%
15–30 min late
19%
30 min–1 hour late
14%
1–2 hours late
10%
Over 2 hours late
3%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
2pm departures from HOU are often late
↑
Mostly benign weather forecast at HOU
↑
WN's recent on-time record
↓
Thursdays in October are usually quieter than average
Weather at each end
HOU (origin)
Gusts 21 kt Ceiling 6,000 ft Visibility 10+ mi Precip 0.04 in
COS (destination)
Gusts 31 kt Ceiling 6,000 ft Visibility 10+ mi Precip 0.04 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.