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Ontario

$146+ 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 6/18. Fares are subject to change and may not be available on all flights or dates of travel.
CUN — ONT
Apr 12 — Apr 191
Sun 4/12
Sun 4/19
1 adult, Economy
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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 March 13, 2026.

This Flightnetwork deal was found by Cheapflights users on 3/12. 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 4/212:43 pm
CUN
-
ONT
1 stop12h 22m
Volaris
Wed 4/812:55 am
ONT
-
CUN
1 stop12h 33m
Volaris
Deal found 3/12$279
This Volaris deal was found by Cheapflights users on 3/9. 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 3/1010:39 am
CUN
-
ONT
1 stop11h 32m
Volaris
Tue 3/2411:02 pm
ONT
-
CUN
1 stop11h 03m
Volaris
Deal found 3/9$305
This Mytrip deal was found by Cheapflights users on 3/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1310:40 am
CUN
-
ONT
1 stop11h 06m
Volaris
Sat 8/2912:55 am
ONT
-
CUN
1 stop12h 33m
Volaris
Deal found 3/9$318
This FlightHub deal was found by Cheapflights users on 3/10. 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.
Fri 3/1310:39 am
CUN
-
ONT
1 stop11h 32m
Volaris
Sat 3/2112:27 am
ONT
-
CUN
1 stop13h 01m
Volaris
Deal found 3/10$323
This Frontier deal was found by Cheapflights users on 3/9. 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.
Tue 3/243:54 pm
CUN
-
ONT
1 stop10h 05m
Frontier
Mon 3/309:49 pm
ONT
-
CUN
2 stops14h 55m
Frontier
Deal found 3/9$324
This lastminute.com deal was found by Cheapflights users on 3/12. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/204:32 pm
CUN
-
ONT
1 stop8h 33m
Volaris
Fri 7/2412:55 am
ONT
-
CUN
1 stop12h 33m
Volaris
Deal found 3/12$328
This Kissandfly.com deal was found by Cheapflights users on 3/13. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/2412:43 pm
CUN
-
ONT
1 stop12h 22m
Volaris
Thu 6/2512:55 am
ONT
-
CUN
1 stop8h 59m
Volaris
Deal found 3/13$329
This FlightHub deal was found by Cheapflights users on 3/10. 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.
Fri 3/1310:39 am
CUN
-
ONT
1 stop11h 32m
Volaris
Sun 3/1511:02 pm
ONT
-
CUN
1 stop11h 03m
Volaris
Deal found 3/10$331
This Flightnetwork deal was found by Cheapflights users on 3/12. 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 4/95:25 pm
CUN
-
ONT
1 stop27h 20m
Frontier
Thu 4/165:33 pm
ONT
-
CUN
1 stop19h 06m
Frontier
Deal found 3/12$332
This Cheapflightsfares deal was found by Cheapflights users on 3/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/710:40 am
CUN
-
ONT
1 stop11h 06m
Volaris
Thu 5/712:55 am
ONT
-
CUN
1 stop12h 33m
Volaris
Deal found 3/12$336
This Mytrip deal was found by Cheapflights users on 3/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1412:43 pm
CUN
-
ONT
1 stop9h 03m
Volaris
Sun 5/179:36 pm
ONT
-
CUN
2 stops21h 59m
Volaris
Deal found 3/12$337
This Mytrip deal was found by Cheapflights users on 3/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1610:40 am
CUN
-
ONT
1 stop11h 06m
Volaris
Tue 4/219:36 pm
ONT
-
CUN
2 stops14h 51m
Volaris
Deal found 3/12$342

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 March 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$279
(Flightnetwork)

One-way from

$146
(FlightHub)

Popular in

April

Cheapest in

October

Average price

$322
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. 15% potential increase in price ($75 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 13, 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 3/24

3:54 pm-11:59 pm

1 stop10h 05m

Ontario

Mon 3/30

9:49 pm-2:44 pm

2 stops14h 55m

$324

CancúnOntario

CUN - ONT

CUNONT

Cancun

Thu 5/7

10:40 am-7:46 pm

1 stop11h 06m

Ontario

Thu 5/7

12:55 am-3:28 pm

1 stop12h 33m

$336

CancúnOntario

CUN - ONT

CUNONT

Cancun

Thu 8/20

12:43 pm-11:05 pm

1 stop12h 22m

Ontario

Sat 8/22

12:55 am-3:28 pm

1 stop12h 33m

$361

CancúnOntario

CUN - ONT

CUNONT

Cancun

Wed 5/13

10:40 am-7:46 pm

1 stop11h 06m

Ontario

Fri 8/14

12:55 am-3:28 pm

1 stop12h 33m

$378

CancúnOntario

CUN - ONT

CUNONT

Cancun

Wed 4/22

3:24 pm-9:50 pm

1 stop8h 26m

Ontario

Sat 4/25

1:34 pm-12:33 pm

2 stops20h 59m

$391
Quickest round-trip

CancúnOntario

CUN - ONT

CUNONT

Cancun

Wed 4/8

2:10 pm-8:36 pm

1 stop8h 26m

Ontario

Tue 4/14

6:05 am-2:18 pm

1 stop6h 13m

$401

CancúnOntario

CUN - ONT

CUNONT

Cancun

Fri 4/24

3:24 pm-9:50 pm

1 stop8h 26m

Ontario

Tue 4/28

6:05 am-2:18 pm

1 stop6h 13m

$402

CancúnOntario

CUN - ONT

CUNONT

Cancun

Wed 4/15

7:51 am-5:47 pm

2 stops11h 56m

Ontario

Tue 4/21

1:27 pm-12:33 pm

2 stops21h 06m

$403
Cheapest one-way

CancúnOntario

CUN - ONT

CUNONT

Cancun

Wed 3/25

9:53 am-11:59 pm

1 stop16h 06m

$221

CancúnOntario

CUN - ONT

CUNONT

Cancun

Thu 4/30

12:57 pm-10:59 pm

1 stop12h 02m

$228

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/13

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

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 March.
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

What is the cheapest month to book a flight from Cancún to Ontario?

Currently, March is the cheapest month in which you can book a flight from Cancún to Ontario (average of $99). Flying from Cancún to Ontario in June is currently the most expensive (average of $269). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 10h 05m. Your travel time can differ by up to 2h 17m. 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?

    $190 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on United Airlines and American Airlines, with prices starting from $197 and $240, 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.

  • What is the cheapest month to book a flight from Cancún to Ontario?

    Currently, March is the cheapest month in which you can book a flight from Cancún to Ontario (average of $99). Flying from Cancún to Ontario in June is currently the most expensive (average of $269). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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