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 · SNA → SEA
departs 11:25 AM PT · arrives 2:25 PM PT
Forecast issued Thu 10:00 PM ET · 8h after departure
Watch this flight
Other days
Thu 10/1
Today 42%
Mon 10/5 25%
Fri 10/9 28%
Odds over time
Arrive at SEA more than 15 minutes late?
31%
chance · ±0 pts
+2 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
31%
Leave 15+ late
28%
Arrive 1h+ late
8%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.8d
2d
1d
12h
6h
Departs
Lands
Arrive at SEA more than 15 minutes late?
Calm-weather odds: 31% · changed +2 pts in 24h
+2 pts
31%
Yes 31%
No 69%
Leave SNA more than 15 minutes late?
Calm-weather odds: 28% · changed −4 pts in 24h
−4 pts
28%
Yes 28%
No 72%
Arrive at SEA more than an hour late?
Calm-weather odds: 8% · changed −3 pts in 24h
−3 pts
8%
Yes 8%
No 92%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to SEA?
On time or early
69%
15–30 min late
14%
30 min–1 hour late
9%
1–2 hours late
4%
Over 2 hours late
4%
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
↑
11am departures from SNA are often late
↓
Mostly benign weather forecast at SEA
↓
Other factors
Weather at each end
SNA (origin)
Gusts 9 kt Ceiling 700 ft Visibility 7 mi Precip none
SEA (destination)
Gusts 9 kt Ceiling 5,500 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.