$70 Cheap Flights from Cleveland (CLE) to Ontario (ONT)

View $70 flight on Sat, Nov 15, 2025Opens in a new window

Popular airlines from Cleveland Hopkins International Airport (CLE) to Los Angeles - Ontario Intl. Airport (ONT)

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Cheap Flights from Cleveland to Ontario (CLE-ONT)

Prices were available within the past 7 days and start at $70 for one-way flights and $140 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sat, Nov 15 - Wed, Nov 19
CLE
Cleveland
ONT
Ontario
$140 Roundtrip, found 5 hours ago
$140
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Sat, Nov 15 from Cleveland to Ontario, returning Wed, Nov 19, priced at $140 found 5 hours ago
Frontier Airlines
Mon, Nov 17 - Tue, Nov 18
CLE
Cleveland
ONT
Ontario
$147 Roundtrip, found 3 hours ago
$147
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Mon, Nov 17 from Cleveland to Ontario, returning Tue, Nov 18, priced at $147 found 3 hours ago
Frontier Airlines
Mon, Nov 17 - Tue, Nov 18
CLE
Cleveland
ONT
Ontario
$154 Roundtrip, found 3 hours ago
$154
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Mon, Nov 17 from Cleveland to Ontario, returning Tue, Nov 18, priced at $154 found 3 hours ago
Frontier Airlines
Mon, Dec 8 - Sat, Dec 13
CLE
Cleveland
ONT
Ontario
$180 Roundtrip, found 2 days ago
$180
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Mon, Dec 8 from Cleveland to Ontario, returning Sat, Dec 13, priced at $180 found 2 days ago
Frontier Airlines
Mon, Nov 10 - Wed, Nov 19
CLE
Cleveland
ONT
Ontario
$186 Roundtrip, just found
$186
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, Nov 10 from Cleveland to Ontario, returning Wed, Nov 19, priced at $186 just found
Frontier Airlines
Wed, Nov 12 - Fri, Nov 14
CLE
Cleveland
ONT
Ontario
$193 Roundtrip, found 2 hours ago
$193
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Wed, Nov 12 from Cleveland to Ontario, returning Fri, Nov 14, priced at $193 found 2 hours ago
Delta
Wed, Dec 3 - Sat, Dec 6
CLE
Cleveland
ONT
Ontario
$230 Roundtrip, found 2 days ago
$230
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Dec 3 from Cleveland to Ontario, returning Sat, Dec 6, priced at $230 found 2 days ago
American Airlines
Fri, Nov 28 - Wed, Dec 3
CLE
Cleveland
ONT
Ontario
$234 Roundtrip, found 8 hours ago
$234
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Fri, Nov 28 from Cleveland to Ontario, returning Wed, Dec 3, priced at $234 found 8 hours ago
Hawaiian Airlines
Wed, Jan 28 - Thu, Jan 29
CLE
Cleveland
ONT
Ontario
$289 Roundtrip, found 6 days ago
$289
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Wed, Jan 28 from Cleveland to Ontario, returning Thu, Jan 29, priced at $289 found 6 days ago
Alaska Airlines
Thu, Jan 29 - Wed, Feb 4
CLE
Cleveland
ONT
Ontario
$318 Roundtrip, just found
$318
Roundtrip
just found
Select Alaska Airlines flight, departing Thu, Jan 29 from Cleveland to Ontario, returning Wed, Feb 4, priced at $318 just found

Find the cheapest month to fly from Cleveland (CLE) to Ontario (ONT)

February is typically the cheapest month to fly

From $138 - $431 per traveler.

Alternative airports near Ontario

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to John Wayne SNA. Cheapest option available. Average driving time to city center is 42 minutes. Flights from $147
SNA
John Wayne
Cheapest
Average driving time to city center42 min
Flights from $147
Flights from Cleveland (CLE) to Ontario (ONT)
Origin airport
Hopkins Intl.
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United
Roundtrip price
$140
Distance
2002 mi

Cleveland to Ontario Flights

The cheapest times to fly from Cleveland to Ontario

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Cleveland to Ontario are during the month of November. You can find some of the cheapest flights from Cleveland to Ontario with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Cleveland to Ontario

Sunday is one of the best days to book for cheap flights from Cleveland to Ontario: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Cleveland to Ontario

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Cleveland to Ontario in 2025. You can also book with separate airlines for your outbound and return journeys, from $70 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Cleveland to Ontario flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Cleveland to Ontario airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Hopkins Intl. Airport (CLE) to Los Angeles - Ontario Intl. Airport (ONT) cost?
Grab a cheap one-way flight from $70 or cheap return flight from $140 from Hopkins Intl. Airport (CLE) to Los Angeles - Ontario Intl. Airport (ONT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Hopkins Intl. Airport (CLE) to Los Angeles - Ontario Intl. Airport (ONT)?
November is the least expensive month to fly from CLE to ONT. Planning your trip for the off-season is often the key to finding better fares.
What is the cheapest airline that flies from Hopkins Intl. Airport (CLE) to Los Angeles - Ontario Intl. Airport (ONT)?
To find the cheapest airline flying from CLE to ONT, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Hopkins Intl. Airport (CLE) to Los Angeles - Ontario Intl. Airport (ONT)?
Direct flights from Hopkins Intl. Airport (CLE) to Los Angeles - Ontario Intl. Airport (ONT) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from CLE to ONT?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Hopkins Intl. Airport (CLE) to Los Angeles - Ontario Intl. Airport (ONT)?
Book a flight from Hopkins Intl. Airport (CLE) to Los Angeles - Ontario Intl. Airport (ONT) that leaves before 3 PM to reduce the likelihood of delays. Departures later than this are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Ontario from Hopkins Intl. Airport (CLE)?
If you're on a direct flight from Hopkins Intl. Airport (CLE) to Ontario, Los Angeles Intl. Airport (LAX) is the only airport you can land at.
Is it cheaper to buy a plane ticket from Hopkins Intl. Airport (CLE) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Last-minute fares from CLE to ONT are typically more expensive. To lock in the best prices, start searching for flights as early as possible. That said, if you're flexible with your travel dates, you may find a cheap ticket right before your journey.
Is it cheaper to book a CLE to ONT flight and hotel package?
Booking a CLE to ONT flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Select from our impressive range of accommodations and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Hopkins Intl. Airport (CLE) to Los Angeles - Ontario Intl. Airport (ONT)?
If you reserved your CLE to ONT flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

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*Available to One Key members.