Ontario International Airport (ONT)
Security wait right now, how busy ONT is today, how early to arrive, drop-off and parking, delays and nearby airports.
- Quietest today
- 12 PM–2 PM 10–25 min
- Busiest today
- 7 AM–9 AM 15–40 min
- Arrive
- 2 h / 3 h domestic / international
Modeled from FAA passenger volumes, TSA's daily screening numbers, time of day and current airport conditions; refreshed every 15 minutes, not a checkpoint sensor. How we estimate
How busy is ONT airport right now?
Right now the standard security line at Ontario International Airport is short: about 10–25 min (updated 12:32 PM PDT). In the next 12 hours it should peak around 4 PM (15–35 min) and be lightest around 11 PM (5–15 min).
Ontario International Airport is a mid-size U.S. airport. Current conditions:
- Airport operationsNormal
- DelaysNo FAA delay programs
- Weather nowSlight Chance Light Rain, 66°F
- LocationOntario, CA
- Passengers / year2,247,645
- U.S. rank#60 of 501
- CodesONT · KONT
Security wait, next 12 hours
Show as table
| Hour | Estimated wait | Line |
|---|---|---|
| 12 PM | 10–25 min | Short |
| 1 PM | 10–25 min | Short |
| 2 PM | 10–25 min | Short |
| 3 PM | 15–30 min | Moderate |
| 4 PM | 15–35 min | Moderate |
| 5 PM | 15–35 min | Moderate |
| 6 PM | 15–30 min | Moderate |
| 7 PM | 10–25 min | Short |
| 8 PM | 10–20 min | Short |
| 9 PM | 10–20 min | Short |
| 10 PM | 5–20 min | Short |
| 11 PM | 5–15 min | Short |
ONT airport delays today
No FAA ground stops, ground delay programs or closures at ONT right now (checked 12:32 PM PDT).
Weather at ONT: Slight Chance Light Rain, 66°F, good visibility and high clouds (VFR).
The FAA lists airport-wide programs only. A single late or cancelled flight is shown by your airline, so check its app as well. Delays at all U.S. airports →
How early to get to ONT
Airlines recommend 2 hours for domestic and 3 hours for international flights. Enter your flight to see when to be at Ontario and when to leave home, based on today's security estimate.
| Trip | Arrive before departure |
|---|---|
| Domestic, carry-on only | 1 h 30 min – 2 h |
| Domestic, checked bag | 2 h |
| International | 3 h |
| Flying 7 AM–9 AM | add 15–30 min |
Getting to ONT: drop-off, pick-up and parking
Ontario International Airport is in Ontario, CA. For drop-off, follow the Departures signs to your airline's curb; curbside stopping is for active loading only, and pick-ups are usually directed to the arrivals curb or the cell-phone lot. At the busiest hours today (7 AM–9 AM) add time for curb and garage traffic.
Parking rates, cell-phone lot and shuttle details are on the official ONT website.
Airports near Ontario
Security wait right now at the closest alternatives to ONT.
ONT airport FAQ
How long is the TSA line at ONT right now?
The current estimate for the standard security lane at Ontario International Airport is 10–25 min (updated 12:32 PM PDT). It refreshes every 15 minutes; follow airport signs and staff if the line in front of you looks different.
Are there delays at ONT today?
The FAA reports no ground stops or ground delay programs at ONT as of 12:32 PM PDT. Individual flights can still be late, so check your airline's app.
Is ONT airport open right now?
The FAA reports no closure at ONT as of 12:32 PM PDT. For weather or security emergencies, check the official ONT website.
How busy is ONT airport today?
Today (Friday) ONT security is expected to be busiest 7 AM–9 AM (15–40 min) and quietest 12 PM–2 PM (10–25 min).
What time does TSA open at ONT?
Security checkpoints at Ontario International Airport open before the first morning departures, which at most U.S. airports means around 4–5 AM (earlier at some large hubs). Hours differ by checkpoint and terminal, so for a very early flight confirm on the official ONT website.
Where do I drop off passengers at ONT?
Follow the Departures signs to the upper or departures-level curb for your airline. Curbside stopping is for active loading only; at peak hours (7 AM–9 AM) allow extra time for curb traffic. Cell-phone lots and parking rates are listed on the official ONT website.
Is TSA PreCheck open at ONT?
PreCheck lanes usually run during the main morning-to-evening operating hours but can open later and close earlier than standard lanes, and not every checkpoint has one. Outside those hours PreCheck travelers are screened in the standard lane, so plan for the standard wait.
How early should I get to ONT?
Airlines and TSA recommend 2 hours before a domestic flight and 3 hours before an international one. At the busiest hour today the ONT security line alone can reach 40 minutes; use the calculator on this page for your flight time.
Are these live ONT TSA wait times?
They are modeled estimates refreshed every 15 minutes, not a camera or sensor count at the checkpoint. They combine FAA passenger volume, TSA's daily national screening numbers, the hour, weekday, holiday periods and current FAA and weather conditions.
Where can I see the hour-by-hour ONT security forecast?
The ONT TSA wait times page has today's hourly chart, the weekly heatmap and PreCheck details.