Cheap Flights from Los Angeles - Ontario Intl. Airport (ONT)

View NZ$145 flight on Tue, 10 Feb 2026Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT)

  • American Airlines

    American Airlines

  • United

    United

  • Delta

    Delta

  • Southwest Airlines

    Southwest Airlines

  • Alaska Airlines

    Alaska Airlines

  • Frontier Airlines

    Frontier Airlines

  • Volaris

    Volaris

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Flights from Los Angeles - Ontario Intl. Airport

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, 6 Feb - Tue, 24 Feb
ONT
Ontario
SEA
Seattle
NZ$172 Return, found 1 day ago
NZ$172
Return
found 1 day ago
Select Delta flight, departing Fri, 6 Feb from Ontario to Seattle, returning Tue, 24 Feb, priced at NZ$172 found 1 day ago
Hawaiian Airlines
Wed, 4 Feb - Sat, 21 Feb
ONT
Ontario
SEA
Seattle
NZ$172 Return, found 1 day ago
NZ$172
Return
found 1 day ago
Select Hawaiian Airlines flight, departing Wed, 4 Feb from Ontario to Seattle, returning Sat, 21 Feb, priced at NZ$172 found 1 day ago
Hawaiian Airlines
Fri, 20 Feb - Sat, 7 Mar
ONT
Ontario
SEA
Seattle
NZ$273 Return, found 1 day ago
NZ$273
Return
found 1 day ago
Select Hawaiian Airlines flight, departing Fri, 20 Feb from Ontario to Seattle, returning Sat, 7 Mar, priced at NZ$273 found 1 day ago
Delta
Sat, 31 Jan - Sun, 15 Feb
ONT
Ontario
SEA
Seattle
NZ$274 Return, found 1 day ago
NZ$274
Return
found 1 day ago
Select Delta flight, departing Sat, 31 Jan from Ontario to Seattle, returning Sun, 15 Feb, priced at NZ$274 found 1 day ago
Delta
Mon, 23 Feb - Sat, 7 Mar
ONT
Ontario
SEA
Seattle
NZ$311 Return, found 1 day ago
NZ$311
Return
found 1 day ago
Select Delta flight, departing Mon, 23 Feb from Ontario to Seattle, returning Sat, 7 Mar, priced at NZ$311 found 1 day ago
Hawaiian Airlines
Sat, 21 Feb - Mon, 9 Mar
ONT
Ontario
SEA
Seattle
NZ$326 Return, found 1 day ago
NZ$326
Return
found 1 day ago
Select Hawaiian Airlines flight, departing Sat, 21 Feb from Ontario to Seattle, returning Mon, 9 Mar, priced at NZ$326 found 1 day ago
Delta
Thu, 22 Jan - Tue, 10 Feb
ONT
Ontario
SEA
Seattle
NZ$343 Return, found 1 day ago
NZ$343
Return
found 1 day ago
Select Delta flight, departing Thu, 22 Jan from Ontario to Seattle, returning Tue, 10 Feb, priced at NZ$343 found 1 day ago
Alaska Airlines
Thu, 12 Feb - Fri, 13 Feb
ONT
Ontario
PDX
Portland
NZ$498 Return, found 2 days ago
NZ$498
Return
found 2 days ago
Select Alaska Airlines flight, departing Thu, 12 Feb from Ontario to Portland, returning Fri, 13 Feb, priced at NZ$498 found 2 days ago
United
Mon, 23 Feb - Sat, 28 Feb
ONT
Ontario
SFO
San Francisco
NZ$552 Return, found 1 day ago
NZ$552
Return
found 1 day ago
Select United flight, departing Mon, 23 Feb from Ontario to San Francisco, returning Sat, 28 Feb, priced at NZ$552 found 1 day ago
American Airlines
Tue, 24 Mar - Fri, 27 Mar
ONT
Ontario
LAS
Las Vegas
NZ$569 Return, found 4 days ago
NZ$569
Return
found 4 days ago
Select American Airlines flight, departing Tue, 24 Mar from Ontario to Las Vegas, returning Fri, 27 Mar, priced at NZ$569 found 4 days ago

Los Angeles - Ontario Intl. Airport Information

Airport Name
Airport Location
Airport Code
Latitude
Longitude
Altitude
LA/Ontario International AirportOntario, USAIATA: ONT, ICAO: ONT34.056000-117.600998287.73 meters

Ontario Airport is also known by its International Air Transport Association code as ONT Airport and is located in the city of Ontario. Flights are handled by 15 airlines offering both international and domestic travel. The most common airline flying in and out of Ontario is Southwest Airlines with 1,394 Ontario flights every month! Check out our helpful LA/Ontario International Airport information, including individual terminal maps and local weather information. It’s everything you need to book cheap Ontario flights for your next business trip or holiday!

Frequently asked questions

What is the airport code for Los Angeles - Ontario Intl. Airport (ONT)?
Los Angeles - Ontario Intl. Airport (ONT) uses the airport code: ONT.
How many terminals are there in Ontario Airport and how early should I arrive before my flight?
You'll find flights operating out of 2 terminals at Ontario Airport. A few days before you travel, check your ticket or contact your airline to confirm whether you'll be leaving from 2 or 4. For domestic flights, it's recommended to arrive 1.5-2 hours before your departure time. If you're travelling internationally, arrive 2-3 hours in advance to allow ample time for checking bags, security lines and locating your gate.
Does Ontario Airport have a hotel?
ONT doesn't have any hotels in the immediate surrounds, but that doesn't mean all is lost. You're sure to find someplace comfortable to stay before you jet off if you broaden your search. Only a brief cab ride from the terminals, the Hotel d'Lins Ontario Airport might be exactly what you're looking for. It offers a swimming pool, a garden and free internet services. The Ontario Airport Hotel & Conference Centre is also close by. Here you can use mountain views, a cafe and a swimming pool. With convenient options like these, you definitely won't need to sleep on the airport floor if you're flying out early.
Are there private lounges in Los Angeles - Ontario Intl. Airport (ONT)?
Yes, Los Angeles - Ontario Intl. Airport (ONT) offers passengers at least one private lounge. Find out the types of amenities provided and your eligibility for access by checking the airport's website.
What airlines fly out of Ontario Airport?
You have plenty of choices when flying out of ONT with these reliable domestic carriers:

  • American Airlines
  • Frontier Airlines
  • Delta Air Lines

Cross a new country off your travel bucket list with China Airlines. This leading international airline has flights out of Los Angeles - Ontario Intl. Airport (ONT) and will have a destination that'll make you want to click the "book" button.
How many flights per day fly out of ONT?
Head for someplace new on one of the 75 flights that leave Los Angeles - Ontario Intl. Airport (ONT) each day. If you're about to plan your next great escape, look up this airport's destinations.
How to find cheap flights from ONT with Expedia?
The cheapest one-way flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) was to Portland (PDX) at NZ$145. One of the simplest ways to find a cheap flight with Expedia is to enter your preferred dates and destination, and then sort your results by price. These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply. You'll always snag a real bargain with Expedia, but our "Flexible dates" tool makes it that extra bit easier. First, enter your destination and flight dates. Then, click on "Flexible dates" above the search results to browse the cheapest prices for days surrounding your trip. If you want to narrow your search, you can filter by airline preference, specific departure and arrival times and more.
Where can you fly to from Los Angeles - Ontario Intl. Airport (ONT)?
From Los Angeles - Ontario Intl. Airport (ONT), a large number of people venture to Taipei. You'll be in good company if you plan on taking a trip to this popular destination. Many domestic travellers jet to Phoenix, Dallas or Las Vegas. Compare the fares, find impressive deals and secure your dream getaway for less.
What is the cancellation policy on flights and how do I cancel my flight on Expedia?
Most flights are free to cancel within 24 hours of making the reservation. However, some flights are non-refundable, and you may receive a flight credit from the airline to use for a future booking. For more information, please visit our Customer Service Portal.

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