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 3408
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
OO 3408 · PDX → SEA
departs 3:30 PM PT · arrives 4:30 PM PT
Forecast issued Thu 7:00 AM ET · 60h before departure
Watch this flight
Other days
Today 33%
Fri 10/2 22%
Sat 10/3
Sun 10/4 25%
Mon 10/5 23%
Tue 10/6 19%
Wed 10/7 18%
Odds over time
Arrive at SEA more than 15 minutes late?
19%
chance · ±3 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
19%
Leave 15+ late
16%
Arrive 1h+ late
5%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.9d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at SEA more than 15 minutes late?
Calm-weather odds: 14% · changed – in 24h
–
19%
Yes 19%
No 81%
Leave PDX more than 15 minutes late?
Calm-weather odds: 13% · changed – in 24h
–
16%
Yes 16%
No 84%
Arrive at SEA more than an hour late?
Calm-weather odds: 4% · changed – in 24h
–
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
<1%
Yes <1%
No 99%
How late will it get to SEA?
On time or early
80%
15–30 min late
6%
30 min–1 hour late
8%
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
↑
Other factors
↑
SEA is prone to delays
↑
Arrivals into SEA at that hour are often late
↓
OO's recent on-time record
↓
Cloud base down to 900 ft forecast at PDX that day
Weather at each end
PDX (origin)
Gusts 10 kt Ceiling 900 ft Visibility 9 mi Precip none
SEA (destination)
Gusts 13 kt Ceiling 200 ft Visibility 9 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.