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.
SKYWEST · FLIGHT OO 4657
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
OO 4657 · COS → DEN
departs 3:02 PM MT · arrives 4:15 PM MT
Forecast issued Fri 3:00 PM ET · 26h before departure
Watch this flight
Other days
Today 40%
Sat 10/3
Sun 10/4 22%
Mon 10/5 26%
Odds over time
Arrive at DEN more than 15 minutes late?
20%
chance · ±3 pts
+1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
20%
Leave 15+ late
25%
Arrive 1h+ late
12%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.8d
2d
Now
12h
6h
Departs
Lands
Arrive at DEN more than 15 minutes late?
Calm-weather odds: 15% · changed +1 pt in 24h
+1 pt
20%
Yes 20%
No 80%
Leave COS more than 15 minutes late?
Calm-weather odds: 19% · changed +2 pts in 24h
+2 pts
25%
Yes 25%
No 75%
Arrive at DEN more than an hour late?
Calm-weather odds: 9% · changed +1 pt in 24h
+1 pt
12%
Yes 12%
No 88%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to DEN?
On time or early
80%
15–30 min late
4%
30 min–1 hour late
4%
1–2 hours late
9%
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
↑
Arrivals into DEN at that hour are often late
↑
Later flights pick up delays from earlier in the day
↑
DEN is busy at that time
↓
Mostly benign weather forecast at DEN
↓
Cloud base down to 400 ft forecast at COS that day
Weather at each end
COS (origin)
Gusts 17 kt Ceiling none (clear) Visibility 10+ mi Precip none
DEN (destination)
Gusts 24 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.