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 3966
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4 Tomorrow
OO 3966 · SEA → SNA
departs 7:40 AM PT · arrives 10:41 AM PT
Forecast issued Sat 11:00 PM ET · 12h before departure
Watch this flight
Other days
Today
Mon 10/5 16%
Fri 10/9 20%
Odds over time
Arrive at SNA more than 15 minutes late?
23%
chance · ±0 pts
+3 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
23%
Leave 15+ late
23%
Arrive 1h+ late
8%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
5.5d
2d
1d
Now
6h
Departs
Lands
Arrive at SNA more than 15 minutes late?
Calm-weather odds: 20% · changed +3 pts in 24h
+3 pts
23%
Yes 23%
No 77%
Leave SEA more than 15 minutes late?
Calm-weather odds: 16% · changed +8 pts in 24h
+8 pts
23%
Yes 23%
No 77%
Arrive at SNA more than an hour late?
Calm-weather odds: 9% · changed +1 pt in 24h
+1 pt
8%
Yes 8%
No 92%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 100%
How late will it get to SNA?
On time or early
77%
15–30 min late
11%
30 min–1 hour late
5%
1–2 hours late
5%
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
↑
OO's recent on-time record
↑
SNA is prone to delays
↑
SEA is busy at that time
↓
Early flights usually leave on time
↓
Mostly benign weather forecast at SEA
Weather at each end
SEA (origin)
Gusts 6 kt Ceiling none (clear) Visibility 8 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.