ONT Ground Stop Status — Ontario International Airport
Live ONT ground stop and delay status, refreshed every 60 seconds from the FAA feed.
Ontario International Airport (ONT) is operating normally. No ground stop, closure, or delay program is listed in the FAA feed.
Snapshot 07:30 UTC: 0 ground stop, 0 closure, 0 delay program. Average delay —, longest —.
What this means for your flight
- ONT is operating normally in the current FAA snapshot. No stop, closure or delay program is listed.
- Local weather can still delay you. Check the weather panel above and your airline app.
- Check other airports on your route. A stop at your origin or destination is what matters, not the national total.
Typical ground stops last 15–90 minutes and are re-issued in short increments. Recovery at a large hub can add 2–6 hours after the order lifts, because released departures compete for the same slots.
ONT event history
All history →No events recorded for ONT since this tracker began archiving. Every future stop, delay program and closure will be stored here permanently.
ONT questions
Is ONT under a ground stop right now?
No. As of 07:30 UTC, Ontario International Airport is not under a ground stop.
What should I do if ONT has a ground stop?
Check your flight number with the airline before leaving for the airport. A stop holds departures at their origin, so your aircraft may not be at the gate yet.
How much delay is normal at ONT?
Delay figures change hourly with weather and traffic. The FAA publishes an average and a maximum for each active program; both are shown above when available.
Where does ONT data come from?
From the FAA NAS Status public feed, polled once a minute. Weather comes from NOAA aviation weather reports. GroundStopNow is not affiliated with the FAA.