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 3897
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
OO 3897 · SEA → SJC
departs 2:45 PM PT · arrives 5:05 PM PT
Forecast issued Thu 12:00 AM ET · 66h before departure
Watch this flight
Other days
Today 16%
Fri 10/2 13%
Sat 10/3
Sun 10/4 13%
Mon 10/5 12%
Tue 10/6 10%
Wed 10/7 8%
Odds over time
Arrive at SJC more than 15 minutes late?
10%
chance · ±0 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
10%
Leave 15+ late
14%
Arrive 1h+ late
5%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
4.8d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at SJC more than 15 minutes late?
Calm-weather odds: 8% · changed – in 24h
–
10%
Yes 10%
No 90%
Leave SEA more than 15 minutes late?
Calm-weather odds: 12% · changed – in 24h
–
14%
Yes 14%
No 86%
Arrive at SJC 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 SJC?
On time or early
89%
15–30 min late
2%
30 min–1 hour late
3%
1–2 hours late
4%
Over 2 hours late
<1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
SEA is busy at that time
↑
Arrivals into SJC at that hour are often late
↑
Later flights pick up delays from earlier in the day
↓
Mostly benign weather forecast at SJC
↓
OO's recent on-time record
Weather at each end
SEA (origin)
Gusts 12 kt Ceiling 300 ft Visibility 4 mi Precip none
SJC (destination)
Gusts 12 kt Ceiling none (clear) Visibility 7 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.