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 Today
OO 3966 · SNA → SEA
departs 11:25 AM PT · arrives 2:25 PM PT
Forecast issued Sun 4:00 AM ET · 10h before departure
Watch this flight
Other days
Today
Mon 10/5 22%
Fri 10/9 28%
Odds over time
Arrive at SEA more than 15 minutes late?
28%
chance · ±0 pts
+0 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
28%
Leave 15+ late
32%
Arrive 1h+ late
8%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
5.7d
2d
1d
Now
6h
Departs
Lands
Arrive at SEA more than 15 minutes late?
Calm-weather odds: 28% · changed +0 pts in 24h
+0 pts
28%
Yes 28%
No 72%
Leave SNA more than 15 minutes late?
Calm-weather odds: 28% · changed +0 pts in 24h
+0 pts
32%
Yes 32%
No 68%
Arrive at SEA 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 SEA?
On time or early
72%
15–30 min late
9%
30 min–1 hour late
11%
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 14 kt Ceiling none (clear) Visibility 10+ mi Precip none
SEA (destination)
Gusts 6 kt Ceiling 300 ft Visibility 5 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.