$209 Cheap Flights from Cancun (CUN) to Ontario (ONT)

View $209 flight on Fri, Aug 14, 2026Opens in a new window

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

Cheap Flights from Cancun to Ontario (CUN-ONT)

Prices were available within the past 7 days and start at $209 for one-way flights and $366 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Volaris
Sun, Mar 15 - Sat, Mar 21
CUN
Cancun
ONT
Ontario
$366 Roundtrip, found 4 days ago
$366
Roundtrip
found 4 days ago
Select Volaris flight, departing Sun, Mar 15 from Cancun to Ontario, returning Sat, Mar 21, priced at $366 found 4 days ago
Volaris
Fri, Jan 30 - Fri, Feb 6
CUN
Cancun
ONT
Ontario
$371 Roundtrip, found 2 hours ago
$371
Roundtrip
found 2 hours ago
Select Volaris flight, departing Fri, Jan 30 from Cancun to Ontario, returning Fri, Feb 6, priced at $371 found 2 hours ago
Volaris
Sun, Feb 15 - Mon, Feb 23
CUN
Cancun
ONT
Ontario
$375 Roundtrip, found 1 hour ago
$375
Roundtrip
found 1 hour ago
Select Volaris flight, departing Sun, Feb 15 from Cancun to Ontario, returning Mon, Feb 23, priced at $375 found 1 hour ago
Volaris
Fri, Aug 14 - Wed, Aug 19
CUN
Cancun
ONT
Ontario
$380 Roundtrip, found 12 hours ago
$380
Roundtrip
found 12 hours ago
Select Volaris flight, departing Fri, Aug 14 from Cancun to Ontario, returning Wed, Aug 19, priced at $380 found 12 hours ago
Volaris
Mon, Feb 2 - Fri, Feb 6
CUN
Cancun
ONT
Ontario
$383 Roundtrip, found 1 day ago
$383
Roundtrip
found 1 day ago
Select Volaris flight, departing Mon, Feb 2 from Cancun to Ontario, returning Fri, Feb 6, priced at $383 found 1 day ago
Aeromexico
Fri, Nov 14 - Mon, Nov 24
CUN
Cancun
ONT
Ontario
$383 Roundtrip, found 17 hours ago
$383
Roundtrip
found 17 hours ago
Select Aeromexico flight, departing Fri, Nov 14 from Cancun to Ontario, returning Mon, Nov 24, priced at $383 found 17 hours ago
Volaris
Fri, Jan 23 - Mon, Jan 26
CUN
Cancun
ONT
Ontario
$392 Roundtrip, found 1 day ago
$392
Roundtrip
found 1 day ago
Select Volaris flight, departing Fri, Jan 23 from Cancun to Ontario, returning Mon, Jan 26, priced at $392 found 1 day ago
Delta
Fri, Nov 14 - Sun, Nov 16
CUN
Cancun
ONT
Ontario
$394 Roundtrip, found 16 hours ago
$394
Roundtrip
found 16 hours ago
Select Delta flight, departing Fri, Nov 14 from Cancun to Ontario, returning Sun, Nov 16, priced at $394 found 16 hours ago
Southwest Airlines
Wed, Nov 12 - Sat, Nov 15
CUN
Cancun
ONT
Ontario
$394 Roundtrip, found 3 days ago
$394
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Wed, Nov 12 from Cancun to Ontario, returning Sat, Nov 15, priced at $394 found 3 days ago
Frontier Airlines
Thu, Nov 20 - Wed, Nov 26
CUN
Cancun
ONT
Ontario
$398 Roundtrip, found 1 day ago
$398
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, Nov 20 from Cancun to Ontario, returning Wed, Nov 26, priced at $398 found 1 day ago

Find the cheapest month to fly from Cancun (CUN) to Ontario (ONT)

September is typically the cheapest month to fly

From $308 - $532 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 $461
SNA
John Wayne
Cheapest
Average driving time to city center42 min
Flights from $461

Frequently asked questions

How much does a flight from Cancun Intl. Airport (CUN) to Los Angeles - Ontario Intl. Airport (ONT) cost?
Grab a cheap one-way flight from $209 or cheap return flight from $366 from Cancun Intl. Airport (CUN) to Los Angeles - Ontario Intl. Airport (ONT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Cancun Intl. Airport (CUN) to Los Angeles - Ontario Intl. Airport (ONT)?
Planning your trip for March can help you save, as it's the cheapest month for flights between CUN and ONT. You'll often find the lowest fares during the off-season.
What is the cheapest airline that flies from Cancun Intl. Airport (CUN) to Los Angeles - Ontario Intl. Airport (ONT)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll fly you from CUN to ONT. Then, sort your results by "Price (lowest to highest)" to score the best deal available.
How many flights per day from Cancun Intl. Airport (CUN) to Los Angeles - Ontario Intl. Airport (ONT)?
Nonstop flights from Cancun Intl. Airport (CUN) to Los Angeles - Ontario Intl. Airport (ONT) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from CUN to ONT?
Typically you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can vary based on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Cancun Intl. Airport (CUN) to Los Angeles - Ontario Intl. Airport (ONT)?
To avoid possible delays on the Cancun Intl. Airport (CUN) to Los Angeles - Ontario Intl. Airport (ONT) route, travel before 3 PM. Flights after this time are 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 Cancun Intl. Airport (CUN)?
Los Angeles Intl. Airport (LAX) is the only airport in Ontario with direct flights from Cancun Intl. Airport (CUN). Consider the available options and discover affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Cancun Intl. Airport (CUN) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Booking your ticket from CUN to ONT shortly before your trip is usually more expensive. However, if there's some wiggle room with your itinerary, you could score a cheap last-minute fare.
Is it cheaper to book a CUN to ONT flight and hotel package?
Opting for a CUN to ONT flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Pick from our impressive range of accommodations and then add flights, activities and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Cancun Intl. Airport (CUN) to Los Angeles - Ontario Intl. Airport (ONT)?
Typically, it's possible to cancel or reschedule your CUN to ONT flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Cancun Intl.
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
Aeromexico, Air Canada, Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United, Volaris
Roundtrip price
$366
Distance
2074 mi

Book with confidence

Cancun to Ontario Flights

The cheapest times to fly from Cancun 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 Cancun to Ontario are during the month of March. You can find some of the cheapest flights from Cancun to Ontario with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Cancun to Ontario

Sunday is one of the best days to book for cheap flights from Cancun 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 Cancun 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 Cancun to Ontario in 2025. You can also book with separate airlines for your outbound and return journeys, from $209 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 Cancun 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 Cancun 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.

 

Cancun to Ontario Flights

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*Available to One Key members.