How busy is Ontario International right now?

The TSA wait at ONT is about 11-17 minutes. Check live conditions, weather, and FAA delay status above for a full picture of how busy ONT is right now.

What is the FAA airport status for ONT?

The FAA airport status for ONT (Ontario International) shows current delays, ground stops, and departure/arrival delay programs. ONT has an on-time departure rate of 82%, with an average delay of 64 minutes when delays occur. Check above for live FAA status and real-time conditions.

Is ONT busy right now?

Check the live status above for real-time conditions at Ontario International (ONT). TSA wait is currently about 11-17 minutes. Overall, 82% of flights depart on time from ONT. The least busy time for security is 4 AM (about 5 min).

Is Ontario International operating normally today?

Check the live FAA status and delay data above for current operations at ONT. On a typical day, 82% of departures from Ontario International are on time. When delays occur, they average about 64 minutes. The most common reason for departure delays here is the incoming plane arriving late.

Are there delays at Ontario International today?

Check the live delay tracker above for current ONT delays. Historically, 82% of departures are on time, and when delays occur they average 64 minutes. About 0.8% of flights are cancelled. The most common reason for departure delays here is the incoming plane arriving late.

What is the average departure delay at Ontario International?

When departures at ONT (Ontario International) are delayed, the average delay is about 64 minutes. Overall, 82% of flights depart on time. About 0.8% of flights are cancelled.

What causes the most departure delays at Ontario International?

The most common reason for departure delays here is the incoming plane arriving late. At ONT, 82% of departures are on time, and when delays occur they average 64 minutes.

Is it safe to book a tight connection at Ontario International?

ONT is fairly reliable, so a 60-minute domestic connection is usually fine. For international flights, allow at least 90 minutes.

What's the best time to fly from Ontario International?

Early morning flights (before 8 AM) tend to have the best on-time performance at most airports, including ONT. For shorter security lines, aim for 4 AM (about 5 min). Midweek flights (Tuesday and Wednesday) also tend to see fewer delays than weekend or Monday departures.

Heads up at ONT. Avg delay is 64 min when late.

Give yourself extra time. 82% on-time rate, TSA is about 11-17 minutes.

Updated 5:44 AM UTC

ONT Ontario Delays & Airport Status

Q: What are TSA wait times at ONT?

The TSA wait at ONT is about 11-17 minutes. The fastest time through security is 4 AM (about 5 min). The busiest period is 6 AM (24-30 minutes). Wait times are similar throughout the week.

Ontario International

ONT delays today: Ontario International has an on-time departure rate of about 82%. The FAA airport status for ONT typically shows an average delay of 64 minutes when departures are delayed. The most common reason for departure delays here is the incoming plane arriving late. Roughly 0.8% of flights are cancelled. The typical taxi-out time from gate to takeoff is about 15 minutes. The current TSA wait is about 11-17 minutes. The fastest time through security is 4 AM (about 5 min). The busiest period is 6 AM (24-30 minutes).

Source: BTS, FAA. Updated August 2026.