Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SKYWEST · FLIGHT OO 3856
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4
OO 3856 · SLC → SNA
departs 5:25 PM MT · arrives 6:25 PM PT
Forecast issued Fri 12:00 PM ET · 55h before departure
Watch this flight
Other days
Today 29%
Sun 10/4
Mon 10/5 23%
Wed 10/7 17%
Odds over time
Arrive at SNA more than 15 minutes late?
22%
chance · ±3 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
22%
Leave 15+ late
20%
Arrive 1h+ late
9%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
5.9d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at SNA more than 15 minutes late?
Calm-weather odds: 19% · changed – in 24h
–
22%
Yes 22%
No 78%
Leave SLC more than 15 minutes late?
Calm-weather odds: 18% · changed – in 24h
–
20%
Yes 20%
No 80%
Arrive at SNA more than an hour late?
Calm-weather odds: 8% · changed – in 24h
–
9%
Yes 9%
No 91%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
<1%
Yes <1%
No 99%
How late will it get to SNA?
On time or early
77%
15–30 min late
6%
30 min–1 hour late
8%
1–2 hours late
7%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
SNA is prone to delays
↑
Later flights pick up delays from earlier in the day
↑
SLC is busy at that time
↓
Mostly benign weather forecast at SLC
↓
OO's recent on-time record
Weather at each end
SLC (origin)
Gusts 11 kt Ceiling none (clear) Visibility 10+ mi Precip none
SNA (destination)
Gusts 14 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.