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Ontario

$141+ Cheap flights from Cancún (CUN) to Ontario (ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/21. Fares are subject to change and may not be available on all flights or dates of travel.
CUN — ONT
May 23 — May 301
Sat 5/23
Sat 5/30
1 adult, Economy
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Find cheap flights from Cancún to Ontario with Cheapflights

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Cheap flight deals from Cancún to Ontario

Cheapest flights from Cancún to Ontario
Explore the most affordable flight options available from Cancún to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 23, 2026.

This Expedia deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/213:39 pm
CUN
-
ONT
1 stop20h 26m
Frontier
Mon 5/256:00 am
ONT
-
CUN
1 stop28h 04m
Frontier
Deal found 4/20$257
This Booking.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/233:39 pm
CUN
-
ONT
1 stop20h 26m
Frontier
Fri 5/298:06 pm
ONT
-
CUN
1 stop16h 23m
Frontier
Deal found 4/22$325
This FlightHub deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/210:40 am
CUN
-
ONT
1 stop11h 06m
Volaris
Sat 6/612:55 am
ONT
-
CUN
1 stop12h 33m
Volaris
Deal found 4/22$336
This FlightHub deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/912:43 pm
CUN
-
ONT
1 stop12h 22m
Volaris
Tue 6/169:36 pm
ONT
-
CUN
1 stop12h 18m
Volaris
Deal found 4/21$337
This Expedia deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/23:39 pm
CUN
-
ONT
1 stop20h 26m
Frontier
Tue 6/96:00 am
ONT
-
CUN
1 stop28h 48m
Frontier
Deal found 4/18$345
This Kiwi.com deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/113:35 pm
CUN
-
ONT
1 stop20h 30m
Frontier
Mon 6/223:34 pm
ONT
-
CUN
2 stops19h 14m
Frontier
Deal found 4/19$349
This Volaris deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Volaris is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/24:32 pm
CUN
-
ONT
1 stop8h 33m
Volaris
Mon 6/812:55 am
ONT
-
CUN
1 stop8h 59m
Volaris
Deal found 4/18$367
This Booking.com deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/241:14 pm
CUN
-
ONT
1 stop19h 54m
Frontier
Mon 6/88:06 pm
ONT
-
CUN
1 stop16h 19m
Frontier
Deal found 4/19$374
This Flightnetwork deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/244:32 pm
CUN
-
ONT
1 stop8h 47m
Volaris
Wed 1/611:59 pm
ONT
-
CUN
1 stop9h 04m
Volaris
Deal found 4/20$390
This Frontier deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/511:05 am
CUN
-
ONT
1 stop10h 06m
Frontier
Sat 6/135:43 pm
ONT
-
CUN
1 stop18h 42m
Frontier
Deal found 4/20$391

Find flight deals from Cancún to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Cancún (CUN) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$257
(Expedia)

One-way from

$141
(Priceline)

Popular in

April

Cheapest in

October

Average price

$593
Provider with most accurate pricing for Cancun-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Cancun-Ontario flights.
Search Deals
From Cancun to Ontario
Search Deals
One-way flight from Cancun to Ontario
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($102 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Cancún to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 23, 2026.
Use the filters below to find and compare flights from Cancún to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CancúnOntario

CUN - ONT

CUNONT

Cancun

Tue 6/9

12:43 pm-11:05 pm

1 stop12h 22m

Ontario

Tue 6/16

9:36 pm-11:54 am

1 stop12h 18m

$337

CancúnOntario

CUN - ONT

CUNONT

Cancun

Tue 6/2

3:39 pm-10:05 am

1 stop20h 26m

Ontario

Tue 6/9

6:00 am-12:48 pm

1 stop28h 48m

$345
Quickest round-trip

CancúnOntario

CUN - ONT

CUNONT

Cancun

Tue 6/2

4:32 pm-11:05 pm

1 stop8h 33m

Ontario

Mon 6/8

12:55 am-11:54 am

1 stop8h 59m

$367

CancúnOntario

CUN - ONT

CUNONT

Cancun

Mon 5/25

3:39 pm-11:49 pm

1 stop10h 10m

Ontario

Thu 5/28

12:55 am-1:41 pm

1 stop10h 46m

$437

CancúnOntario

CUN - ONT

CUNONT

Cancun

Thu 5/14

12:55 pm-10:35 pm

1 stop11h 40m

Ontario

Sat 5/30

1:40 pm-6:48 am

1 stop15h 08m

$453

CancúnOntario

CUN - ONT

CUNONT

Cancun

Sat 6/27

2:49 pm-12:47 pm

2 stops23h 58m

Ontario

Sun 7/5

5:00 am-2:40 pm

1 stop7h 40m

$453

CancúnOntario

CUN - ONT

CUNONT

Cancun

Thu 9/17

2:20 pm-12:38 pm

2 stops24h 18m

Ontario

Sat 10/3

6:00 am-2:37 pm

1 stop6h 37m

$454

CancúnOntario

CUN - ONT

CUNONT

Cancun

Thu 10/15

1:43 pm-9:58 pm

1 stop10h 15m

Ontario

Mon 10/26

6:00 am-4:20 pm

1 stop8h 20m

$454

CancúnOntario

CUN - ONT

CUNONT

Cancun

Wed 10/14

12:57 pm-10:59 pm

1 stop12h 02m

Ontario

Wed 11/4

6:02 am-5:50 pm

1 stop8h 48m

$454
Cheapest one-way

CancúnOntario

CUN - ONT

CUNONT

Cancun

Tue 5/12

12:43 pm-11:05 pm

1 stop12h 22m

$192

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/20

Showing 1-10 of 21 resultsSorted by cheapest first
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Compare providers for flights from Cancún to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Cancún to Ontario in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Cancún-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Cancún-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Cancún-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Cancún-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Cancún-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Cancún to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Cancún with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Cancún to Ontario

How much does it cost to fly round-trip from Cancún to Ontario?

Related info for your journey

Find useful and relevant information for your journey from Cancún to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Cancún to Ontario?

    Volaris and Frontier can get you from Cancún to Ontario in just under 12h 22m. Your travel time can differ by up to 8h 04m. Cancún and Ontario are separated by a distance of 2073 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Cancún to Ontario one-way?

    $197 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on American Airlines and Southwest, with prices starting from $240 and $254, respectively.

  • Can I find deals for flights from Cancún to Ontario that include hotel bookings?

    Yes. In addition to deals on Cancún to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Cancún to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cancún to Ontario.

  • Can I find deals for business class flights from Cancún to Ontario?

    Yes. Cheapflights offers flight deals from Cancún to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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