Schedule: a typical summer Thursday (the flights of Jul 30, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SKYWEST · FLIGHT OO 3966
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1
OO 3966 · SEA → SNA
departs 7:40 AM PT · arrives 10:41 AM PT
Forecast issued Thu 10:00 PM ET · 11h after departure
Watch this flight
Other days
Thu 10/1
Today 33%
Mon 10/5 24%
Fri 10/9 20%
Odds over time
Arrive at SNA more than 15 minutes late?
20%
chance · ±0 pts
−3 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
20%
Leave 15+ late
14%
Arrive 1h+ late
6%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.9d
2d
1d
12h
6h
Departs
Lands
Arrive at SNA more than 15 minutes late?
Calm-weather odds: 20% · changed −3 pts in 24h
−3 pts
20%
Yes 20%
No 80%
Leave SEA more than 15 minutes late?
Calm-weather odds: 14% · changed −7 pts in 24h
−7 pts
14%
Yes 14%
No 86%
Arrive at SNA more than an hour late?
Calm-weather odds: 6% · changed −8 pts in 24h
−8 pts
6%
Yes 6%
No 94%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to SNA?
On time or early
80%
15–30 min late
9%
30 min–1 hour late
4%
1–2 hours late
4%
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
↑
OO's recent on-time record
↑
SEA is busy at that time
↑
SNA is prone to delays
↓
Mostly benign weather forecast at SEA
↓
Early flights usually leave on time
Weather at each end
SEA (origin)
Gusts 9 kt Ceiling 5,500 ft Visibility 10+ mi Precip none
SNA (destination)
Gusts 9 kt Ceiling 700 ft Visibility 7 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.