Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SKYWEST · FLIGHT OO 3923
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Tomorrow
OO 3923 · PDX → SEA
departs 8:44 PM PT · arrives 9:56 PM PT
Forecast issued Wed 10:00 PM ET · 26h before departure
Watch this flight
Other days
Today
Fri 10/2 19%
Sun 10/4 22%
Mon 10/5 16%
Tue 10/6 14%
Odds over time
Arrive at SEA more than 15 minutes late?
22%
chance · ±2 pts
+4 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
22%
Leave 15+ late
32%
Arrive 1h+ late
6%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.9d
2d
Now
12h
6h
Departs
Lands
Arrive at SEA more than 15 minutes late?
Calm-weather odds: 22% · changed +4 pts in 24h
+4 pts
22%
Yes 22%
No 78%
Leave PDX more than 15 minutes late?
Calm-weather odds: 32% · changed +17 pts in 24h
+17 pts
32%
Yes 32%
No 68%
Arrive at SEA more than an hour late?
Calm-weather odds: 6% · changed +2 pts in 24h
+2 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 SEA?
On time or early
77%
15–30 min late
3%
30 min–1 hour late
12%
1–2 hours late
3%
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
↑
Arrivals into SEA at that hour are often late
↑
Later flights pick up delays from earlier in the day
↑
OO's recent on-time record
↓
Mostly benign weather forecast at SEA
↓
Mostly benign weather forecast at PDX
Weather at each end
PDX (origin)
Gusts 11 kt Ceiling none (clear) Visibility 10+ mi Precip none
SEA (destination)
Gusts 6 kt Ceiling 8,000 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.