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9/9/2026 Find Cheap Flights to Ontario (ONT)
CHI - Chicago LAX - Los Angeles 
Find Cheap Flights to Ontario (ONT)
Fares Starting from $103
CHI - Chicago LAX - Los Angeles Great deal! This is the lowest price we've seen for this one way route in the last 12 hours. Prices may change and aren't guaranteed for all flights or dates. Click on the price to continue your search and check the latest available fare. Ref. id 202608~Ref:8WYtECsmH0mCp8J9bEzDNA
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Cheap Flights to Ontario - Compare Airfares, Flight Times & Airlines
Travelers can choose daily flight options to Ontario, with flexible choices to suit different travel needs. Browse one-way fares from $102.98, round-trip fares from $198.68, and other affordable options across a range of budgets. Flights to Ontario operate regularly across major airlines, with nonstop and connecting services available throughout the week. Compare fares, review schedules, and book the right flight to Ontario for your upcoming trip.
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Cheap Flight Deals to Ontario
CHI Chicago Wed, Sep 9
LAX Los Angeles
from $103
Book Now
WAS Washington DC Mon, Aug 31
LAX Los Angeles
from $138
Book Now
MKC Kansas City Wed, Sep 9
LAX Los Angeles
from $144
Book Now
NYC New York City Sun, Sep 6
LAX Los Angeles
from $174
Book Now
IND Indianapolis Sun, Sep 13
LAX Los Angeles
from $185
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HNL Honolulu Mon, Mar 29
LAX Los Angeles
from $276
Book Now
Fares are one way/round trip. Fares incl. all fuel surcharges, taxes & fees and our service fees. Displayed fares are subject to change and cannot be guaranteed at the time of booking. See all booking terms and conditions. 202608~Ref:8WYtECsmH0mCp8J9bEzDNA
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Don't Miss These Ontario Attractions
A vacation in Ontario is the best way to bust the stress out of your life. From beautiful beaches, amusement parks to natural wonders, the city offers everything a traveler could ask for. The eternal romantics should spend some time at the Wasaga Beach or simply marvel at the beauty of the majestic Niagara Falls. CN Tower is one of the most famous attractions in the city, offering skyline views of Ontario from the top. For art lovers, Royal Ontario Museum is a must visit, offering more than 6 million objects related to art and archaeology. Don't forget to take your kids to the Centreville Amusement Park which features about 3 exciting rides for your entertainment.
Book Your Flight to ONT with CheapOair A vacation in Ontario is the best way to bust the stress out of your life. From beautiful beaches, amusement parks to natural wonders, the city offers everything a traveler could ask for. The eternal romantics should spend some time at the Wasaga Beach or simply marvel at the beauty of the majestic Niagara Falls. CN Tower is one of the most famous attractions in the city, offering skyline views of Ontario from the top. For art lovers, Royal Ontario Museum is a must visit, offering more than 6 million objects related to art and archaeology. Don't forget to take your kids to the Centreville Amusement Park which features about 3 exciting rides for your entertainment.
Booking your flight with CheapOair helps ensure that you'll be getting the cheapest available tickets to Ontario. With our Best Price Guarantee, you know that we can provide you with the fantastic low prices on flights to Ontario, and with our 24/7 customer service you can always reach us during your trip.
When to Book Your Ontario Flight? June to August is the perfect time to visit Ontario with the temperatures averaging in the low 8s. With cool breeze and moderate temperatures, its the perfect season to explore the beauty of natural wonders like the Niagara Falls. Winter is considered the off-season with temperatures going below the freezing point. If you can survive the cold, then winter is the perfect time to get good discounts on the airfare and the hotel stays.
Ontario Airports Lester B. Pearson International Airport is the main airport that serves the city of Ontario. The airport offers numerous amenities and provides excellent ground transportation choices for your comfort. Planning is the best way you can get the cheapest flights to Ontario. So book your air tickets at least three weeks in advance if you want to save some big bucks.
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