Ontario International Airport (IATA: ONT, ICAO: KONT) serves Ontario, US. It has 101 scheduled routes to 54 destinations in 4 countries, operated by 29 airlines.
- Overall Convenience and Efficiency: Many travelers prefer ONT over LAX due to less crowding and a smoother experience, especially for those traveling to the Inland Empire.
- Cleanliness and Modern Facilities: The airport is frequently described as clean, with good dining and shopping options, and spacious, well-maintained bathrooms.
- Streamlined Security: ONT offers multiple TSA security lanes, including TSA PreCheck and CLEAR, contributing to faster screening times. During non-peak hours, security wait times are typically under 20 minutes.
- Customer Service and Experience: ONT has been recognized for its exceptional departure experience based on passenger surveys, emphasizing staff courtesy, comfort, and overall efficiency.
- Accessibility: The airport provides accessible parking, ADA-compliant main entrances, and ADA-compliant restrooms, with no steps or stairs.
- Amenities: Travelers appreciate free WiFi throughout the terminals, nursing rooms, pet relief areas (including indoor "Barking Lots"), and available power outlets and USB charging points.
- International Arrivals Facility (IAF): The airport has an adjacent IAF for processing international non-pre-cleared flights.
- Limited Dining Options: While described as "awesome and convenient," some reviews mention that the airport offers "not a lot of options" for dining.
- Terminal Connections: The two terminals are not airside-connected, meaning transfers between some terminals require exiting and re-clearing security.
- Peak Security Wait Times: During busy periods, security wait times can extend to 30 minutes or more, especially in Terminal 4 (5-9 a.m.) and Terminal 2 (4-7 a.m. and 7-11 p.m.).
- Layovers and City Access: While ONT is a good alternative for the Inland Empire, leaving the airport for downtown Los Angeles during a layover is generally not recommended due to traffic and re-screening time (round trip to the city center is about 2 hours plus re-screening).
- Sources researched: yelp.com, flyontario.com, prnewswire.com, vientapps.com, airportinformation.com*
Bottom line: ONT is highly regarded for its customer-focused approach, cleanliness, and efficient security, making it a strong choice for travelers, particularly those heading to or from the Inland Empire.
New & changed departures
1 change to ONT's schedule in the last 90 days.
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Track all changesRoutes from ONT
54 nonstop destinations · 29 airlines.
Airlines at ONT
29 carriers operate scheduled departures.
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Airport routes
Ontario International Airport (ONT) offers 101 flight routes operated by 29 airlines. Major carriers include Southwest, United Parcel Service, Frontier and others. Popular destinations from Ontario include Phoenix Sky Harbor Intl, Denver Intl, Dallas-Fort Worth Intl, Harry Reid Intl, Seattle-Tacoma Intl.
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Common questions about ONT
Quick answers, straight from the schedule data.
How many destinations have nonstop flights from ONT?
Ontario International Airport has 101 scheduled routes to 54 destinations in 4 countries, operated by 29 airlines.
Which airlines fly from Ontario International Airport?
29 carriers operate scheduled departures, including Southwest, United Parcel Service, Frontier.
Where is Ontario International Airport located?
Ontario International Airport is located in Ontario, US, at an elevation of 944 ft. Its IATA code is ONT and ICAO code is KONT.