Schedule: a typical Friday (the flights of Jul 31, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SKYWEST · FLIGHT OO 4070
SCHEDULED · TYPICAL SCHEDULE
OO 4070 · SEA → ONT
departs 8:25 AM PT · arrives 11:17 AM PT
Forecast issued Wed 4:00 PM ET · 43h before departure
Odds over time
Arrive at ONT more than 15 minutes late?
13%
chance · ±0 pts
−1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
-
-
-
-
How late will it get to ONT?
-
On time or early
86%
-
15–30 min late
6%
-
30 min–1 hour late
2%
-
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%.