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.
SKYWEST · FLIGHT OO 4955
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
OO 4955 · ORD → COS
departs 10:15 AM CT · arrives 12:07 PM MT
Forecast issued Fri 1:00 AM ET · 10h before departure
Watch this flight
Other days
Today
Sat 10/3 14%
Sun 10/4 25%
Mon 10/5 24%
Tue 10/6 22%
Wed 10/7 24%
Thu 10/8 14%
Odds over time
Arrive at COS more than 15 minutes late?
26%
chance · ±0 pts
+3 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
26%
Leave 15+ late
23%
Arrive 1h+ late
8%
Cancelled
5%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
3.6d
2d
1d
Now
6h
Departs
Lands
Arrive at COS more than 15 minutes late?
Calm-weather odds: 16% · changed +3 pts in 24h
+3 pts
26%
Yes 26%
No 74%
Leave ORD more than 15 minutes late?
Calm-weather odds: 25% · changed −6 pts in 24h
−6 pts
23%
Yes 23%
No 77%
Arrive at COS more than an hour late?
Calm-weather odds: 9% · changed −4 pts in 24h
−4 pts
8%
Yes 8%
No 92%
Cancelled?
Calm-weather odds: <1% · changed +4 pts in 24h
+4 pts
5%
Yes 5%
No 95%
How late will it get to COS?
On time or early
71%
15–30 min late
8%
30 min–1 hour late
8%
1–2 hours late
5%
Over 2 hours late
3%
Cancelled
5%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
10am departures from ORD are often late
↑
This flight has been late 39% of the time recently
↑
OO's recent on-time record
↓
Other factors
↓
Early flights usually leave on time
Weather at each end
ORD (origin)
Gusts 15 kt Ceiling 6,000 ft Visibility 8.4 mi Precip 0.14 in
COS (destination)
Gusts 27 kt Ceiling 600 ft 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.