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9/5/2026 9/12/2026 Find Cheap Flights from Ontario (ONT)
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Find Cheap Flights from Ontario (ONT)
Fares Starting from $188.62 LAX - Los AngelesSEA - Seattle
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LAX Los Angeles Sat, Sep 5
SEA Seattle
from $188.62
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LAX Los Angeles Tue, Jun 30
BWI Baltimore
from $265.68
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LAX Los Angeles Sat, Jul 11
PDX Portland
from $267.68
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LAX Los Angeles Wed, Aug 12
BNA Nashville
from $271.68
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LAX Los Angeles Tue, Aug 25
BOS Boston
from $274.22
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LAX Los Angeles Wed, Jul 8
MIA Miami
from $297.69
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LAX Los Angeles Fri, Jul 10
CLT Charlotte
from $321.99
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LAX Los Angeles Wed, Jul 1
GEG Spokane
from $322.99
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LAX Los Angeles Tue, Jul 7
ATL Atlanta
from $323.68
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LAX Los Angeles Wed, Jul 8
DTT Detroit
from $330.99
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LAX Los Angeles Wed, Oct 7
MSY New Orleans
from $344.99
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LAX Los Angeles Thu, Sep 24
NYC New York City
from $368.99
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LAX Los Angeles Mon, Aug 17
OGG Kahului
from $378.92
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LAX Los Angeles Fri, Aug 7
HNL Honolulu
from $384.81
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LAX Los Angeles Fri, Jul 17
MSO Missoula
from $613.96
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*All fares above were last found on: 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. 202606~Ref:iiCGrR6AcEiMD3T-6xBP2Q
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Book Cheap Flights from Ontario, California
Looking to book flights from Ontario for your next trip? Whether you're traveling for business, leisure, or a spontaneous getaway, CheapOair helps you find cheap flights from Ontario with top airlines. Discover cheap flight deals from Ontario, compare fares, and book your tickets with ease.
Why Book Flights from Ontario with CheapOair?
- Great Airfare Options: Compare cheap tickets from Ontario on major airlines flying worldwide.
- Flight Deals: Find last-minute and seasonal airfares from Ontario tailored to your travel needs.
- Flexible Booking: Choose flights with flexible cancellations or rescheduling options for extra convenience.
- Global Destinations: Fly from Ontario to top international and domestic destinations.
Tips to Find Cheap Flights from Ontario
- Book in Advance: Get your cheap flights from Ontario by booking at least 4-6 weeks before departure.
- Fly Midweek: Traveling on Tuesdays or Wednesdays often results in lower fares.
- Use Fare Alerts: Set up notifications to get real-time updates on flight deals from Ontario.
- Compare Airlines: Check multiple airlines for great deals and flexible travel options.
- Travel During Off-Peak Seasons: Avoid peak holiday periods for more budget-friendly fares.
FAQs About Flights from Ontario
Q. How early should I arrive at Ontario Airport before my flight?
A. For domestic flights, arrive at least 2 hours before departure. For international flights, it's wise to check in 3-4 hours in advance.
Q. How do I find cheap flights from Ontario?
A. To find cheap flights from Ontario, book in advance, compare fares across multiple airlines, and consider flying mid-week or during the off-peak season.
Q. How far in advance should I book flights to save money?
A. Booking 4–6 weeks in advance is often our best time to secure cheap flight tickets.
Q. How can I find last-minute deals on flights from Ontario?
A. Look for last-minute deals on CheapOair, use fare comparison tools, and check for deals on travel platforms.
Book Your Flight from Ontario Today!
Book cheap tickets from Ontario! Whether you're planning an international trip or a domestic getaway, find cheap flight deals from Ontario on CheapOair today.
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