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 4788
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
OO 4788 · SUN → ORD
departs 8:15 AM MT · arrives 12:48 PM CT
Forecast issued Fri 7:00 AM ET · 3h before departure
Watch this flight
Other days
Today
Sat 10/3 13%
Sun 10/4 13%
Mon 10/5 16%
Tue 10/6 16%
Wed 10/7 19%
Odds over time
Arrive at ORD more than 15 minutes late?
23%
chance · ±0 pts
+11 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
23%
Leave 15+ late
21%
Arrive 1h+ late
8%
Cancelled
17%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
3.5d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at ORD more than 15 minutes late?
Calm-weather odds: 14% · changed +11 pts in 24h
+11 pts
23%
Yes 23%
No 77%
Leave SUN more than 15 minutes late?
Calm-weather odds: 13% · changed +8 pts in 24h
+8 pts
21%
Yes 21%
No 79%
Arrive at ORD more than an hour late?
Calm-weather odds: 8% · changed −1 pt in 24h
−1 pt
8%
Yes 8%
No 92%
Cancelled?
Calm-weather odds: 2% · changed +15 pts in 24h
+15 pts
17%
Yes 17%
No 83%
How late will it get to ORD?
On time or early
64%
15–30 min late
8%
30 min–1 hour late
4%
1–2 hours late
3%
Over 2 hours late
4%
Cancelled
17%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
This flight has been late 19% of the time recently
↑
8am departures from SUN are often late
↑
ORD is busy at that time
↓
Mostly benign weather forecast at SUN
↓
SUN usually runs smoothly
Weather at each end
SUN (origin)
Gusts 14 kt Ceiling none (clear) Visibility 10+ mi Precip none
ORD (destination)
Gusts 16 kt Ceiling 2,800 ft Visibility 9 mi Precip 0.10 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.