Schedule: a typical Saturday (the flights of Jul 25, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SKYWEST · FLIGHT OO 3818
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
OO 3818 · PDX → SEA
departs 11:15 AM PT · arrives 12:30 PM PT
Forecast issued Wed 9:00 PM ET · 65h before departure
Watch this flight
Other days
Today 18%
Thu 10/1 16%
Fri 10/2 15%
Sat 10/3
Sun 10/4 18%
Mon 10/5 15%
Tue 10/6 16%
Odds over time
Arrive at SEA more than 15 minutes late?
14%
chance · ±0 pts
−3 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
14%
Leave 15+ late
16%
Arrive 1h+ late
5%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.7d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at SEA more than 15 minutes late?
Calm-weather odds: 9% · changed −3 pts in 24h
−3 pts
14%
Yes 14%
No 86%
Leave PDX more than 15 minutes late?
Calm-weather odds: 12% · changed −2 pts in 24h
−2 pts
16%
Yes 16%
No 84%
Arrive at SEA more than an hour late?
Calm-weather odds: 3% · changed −2 pts in 24h
−2 pts
5%
Yes 5%
No 95%
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
86%
15–30 min late
3%
30 min–1 hour late
6%
1–2 hours late
2%
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
↑
SEA is prone to delays
↑
11am departures from PDX are often late
↑
SEA is busy at that time
↓
This flight has been late 10% of the time recently
↓
Mostly benign weather forecast at PDX
Weather at each end
PDX (origin)
Gusts 11 kt Ceiling 1,900 ft Visibility 8 mi Precip none
SEA (destination)
Gusts 12 kt Ceiling 300 ft Visibility 4 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.