Schedule: a typical Saturday (the flights of Jul 25, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SKYWEST · FLIGHT OO 4677
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
OO 4677 · COS → DEN
departs 7:45 AM MT · arrives 8:52 AM MT
Forecast issued Thu 9:00 PM ET · 37h before departure
Watch this flight
Other days
Today 19%
Fri 10/2 32%
Sat 10/3
Sun 10/4 12%
Mon 10/5 13%
Tue 10/6 13%
Wed 10/7 13%
Odds over time
Arrive at DEN more than 15 minutes late?
12%
chance · ±2 pts
+1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
12%
Leave 15+ late
9%
Arrive 1h+ late
5%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
4.5d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at DEN more than 15 minutes late?
Calm-weather odds: 11% · changed +1 pt in 24h
+1 pt
12%
Yes 12%
No 88%
Leave COS more than 15 minutes late?
Calm-weather odds: 10% · changed +0 pts in 24h
+0 pts
9%
Yes 9%
No 91%
Arrive at DEN more than an hour late?
Calm-weather odds: 5% · changed +0 pts in 24h
+0 pts
5%
Yes 5%
No 95%
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
87%
15–30 min late
4%
30 min–1 hour late
3%
1–2 hours late
2%
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
↑
COS is prone to delays
↑
DEN is busy at that time
↓
Mostly benign weather forecast at DEN
↓
7am departures from COS are usually not late
Weather at each end
COS (origin)
Gusts 16 kt Ceiling none (clear) Visibility 10+ mi Precip none
DEN (destination)
Gusts 20 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.