Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SKYWEST · FLIGHT OO 3086
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Yesterday
OO 3086 · ONT → STS
departs 6:43 PM PT · arrives 8:14 PM PT
Forecast issued Wed 10:00 PM ET · 0h before departure
Watch this flight
Other days
Wed 9/30
Today 26%
Fri 10/2 16%
Sat 10/3 16%
Sun 10/4 18%
Mon 10/5 14%
Tue 10/6 10%
Wed 10/7 10%
Odds over time
Arrive at STS more than 15 minutes late?
19%
chance · ±0 pts
−1 pt · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
19%
Leave 15+ late
18%
Arrive 1h+ late
5%
Cancelled
1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.8d
2d
1d
12h
6h
Departs
Lands
Arrive at STS more than 15 minutes late?
Calm-weather odds: 20% · changed −1 pt in 24h
−1 pt
19%
Yes 19%
No 81%
Leave ONT more than 15 minutes late?
Calm-weather odds: 19% · changed +0 pts in 24h
+0 pts
18%
Yes 18%
No 82%
Arrive at STS more than an hour late?
Calm-weather odds: 5% · changed +0 pts in 24h
+0 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 STS?
On time or early
80%
15–30 min late
8%
30 min–1 hour late
6%
1–2 hours late
2%
Over 2 hours late
2%
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
↑
6pm departures from ONT are often late
↑
Later flights pick up delays from earlier in the day
↓
Wednesdays in September are usually quieter than average
↓
Mostly benign weather forecast at STS
Weather at each end
ONT (origin)
Gusts 18 kt Ceiling none (clear) Visibility 10+ mi Precip none
STS (destination)
Gusts 10 kt Ceiling none (clear) 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.