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$168+ 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
CUN — ONT
avr. 20 — avr. 271
dim. 4/20
dim. 4/27
1 adult, Economy
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Cheap 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 avril 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$367
(United Airlines)

One-way from

$168
(Kiwi.com)

Popular in

June

Cheapest in

April

Average price

$244
Provider with most accurate pricing for Cancun-Ontario flight deals.
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Provider most trusted by Cheapflights users for Cancun-Ontario flights.
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From Cancun to Ontario
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One-way flight from Cancun to Ontario
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Highest demand for flights based on searches. 20% potential increase in price ($111 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find 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 avril 15, 2025.

This United Airlines deal was found by Cheapflights users on 4/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 9/191:43 pmCUN - ONT
1 stop10h 13mUnited Airlines
sam. 9/276:38 pmONT - CUN
1 stop18h 02mUnited Airlines
Deal found 4/13$367
This Flightnetwork deal was found by Cheapflights users on 4/15. 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.
sam. 5/1010:04 amCUN - ONT
1 stop9h 43mFrontier
dim. 5/1812:59 amONT - CUN
1 stop11h 52mFrontier
Deal found 4/15$382
This American Airlines deal was found by Cheapflights users on 4/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/1312:44 pmCUN - ONT
2 stops11h 13mAmerican Airlines
mar. 5/207:25 pmONT - CUN
2 stops12h 05mAmerican Airlines
Deal found 4/15$420
This Delta deal was found by Cheapflights users on 4/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/234:15 pmCUN - ONT
1 stop9h 27mDelta
lun. 5/2610:00 pmONT - CUN
1 stop8h 55mDelta
Deal found 4/14$424
This Kissandfly.com deal was found by Cheapflights users on 4/14. 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.
mar. 7/293:25 pmCUN - ONT
1 stop10h 25mVolaris
mer. 8/612:59 amONT - CUN
1 stop12h 21mVolaris
Deal found 4/14$471
This Trip.com deal was found by Cheapflights users on 4/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 6/128:00 amCUN - ONT
1 stop13h 18mMultiple Airlines
mer. 6/181:09 amONT - CUN
1 stop18h 01mMultiple Airlines
Deal found 4/14$476
This Kissandfly.com deal was found by Cheapflights users on 4/15. 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.
jeu. 5/223:01 pmCUN - ONT
1 stop8h 09mLufthansa
mer. 5/286:00 amONT - CUN
1 stop8h 12mLufthansa
Deal found 4/15$505
This Alaska Airlines deal was found by Cheapflights users on 4/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/105:15 pmCUN - ONT
2 stops26h 38mAlaska Airlines
sam. 11/156:00 pmONT - CUN
2 stops21h 05mAlaska Airlines
Deal found 4/15$541
This Aeromexico deal was found by Cheapflights users on 4/14. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 5/89:55 amCUN - ONT
1 stop11h 38mAeromexico
jeu. 5/810:00 pmONT - CUN
1 stop8h 55mAeromexico
Deal found 4/14$624
This Priceline deal was found by Cheapflights users on 4/13. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 9/182:15 pmCUN - ONT
1 stop9h 40mAvianca
jeu. 10/211:25 pmONT - CUN
2 stops11h 45mAvianca
Deal found 4/13$795

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 avril 15, 2025.
Use the filters below to find and compare flights from Cancún to Ontario that are best for you.

Fly from

Cancún

Fly to

Ontario

Route

Depart

Return

Price

CancúnOntario

CUN - ONT

CUNONT

Cancun

ven. 9/19

1:43 pm-9:56 pm

1 stop10h 13m

Ontario

sam. 9/27

6:38 pm-2:40 pm

1 stop18h 02m

$367

CancúnOntario

CUN - ONT

CUNONT

Cancun

sam. 5/10

10:04 am-5:47 pm

1 stop9h 43m

Ontario

dim. 5/18

12:59 am-2:51 pm

1 stop11h 52m

$382

CancúnOntario

CUN - ONT

CUNONT

Cancun

mar. 5/13

12:44 pm-9:57 pm

2 stops11h 13m

Ontario

mar. 5/20

7:25 pm-9:30 am

2 stops12h 05m

$420

CancúnOntario

CUN - ONT

CUNONT

Cancun

ven. 5/23

4:15 pm-11:42 pm

1 stop9h 27m

Ontario

lun. 5/26

10:00 pm-8:55 am

1 stop8h 55m

$424

CancúnOntario

CUN - ONT

CUNONT

Cancun

mar. 7/29

3:25 pm-11:50 pm

1 stop10h 25m

Ontario

mer. 8/6

12:59 am-3:20 pm

1 stop12h 21m

$471

CancúnOntario

CUN - ONT

CUNONT

Cancun

jeu. 6/12

8:00 am-7:18 pm

1 stop13h 18m

Ontario

mer. 6/18

1:09 am-9:10 pm

1 stop18h 01m

$476

CancúnOntario

CUN - ONT

CUNONT

Cancun

jeu. 5/22

3:01 pm-9:10 pm

1 stop8h 09m

Ontario

mer. 5/28

6:00 am-4:12 pm

1 stop8h 12m

$505

CancúnOntario

CUN - ONT

CUNONT

Cancun

jeu. 5/8

9:55 am-7:33 pm

1 stop11h 38m

Ontario

jeu. 5/8

10:00 pm-8:55 am

1 stop8h 55m

$624

CancúnOntario

CUN - ONT

CUNONT

Cancun

jeu. 9/18

2:15 pm-9:55 pm

1 stop9h 40m

Ontario

jeu. 10/2

11:25 pm-1:10 pm

2 stops11h 45m

$795

CancúnOntario

CUN - ONT

CUNONT

Cancun

mar. 5/13

5:29 pm-11:58 pm

2 stops32h 29m

Ontario

mar. 5/20

4:45 pm-3:15 pm

3 stops20h 30m

$816

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 21 results
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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*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Cancún-Ontario flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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, August is the cheapest month in which you can book a flight from Cancún to Ontario (average of $246). Flying from Cancún to Ontario in March is currently the most expensive (average of $328). 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.

What is the cheapest time of day to fly from CUN to ONT?

Find hourly flight availability from Cancún to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated avril 15, 2025.

When flying from Cancún to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated avril 15, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta and Aeromexico from Cancún to Ontario. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,876 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,876 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,917 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Aeromexico
7.5
Good
1,698 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,658 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.1

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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.

  • What are the cheapest airlines flying from Cancún to Ontario round-trip?

    Our cheapest airline available from Cancún to Ontario is United Airlines. Our recent data shows that you can find tickets from as low as $367 on this airline. Additional options worth looking into are Frontier and American Airlines, starting at $382 and $420 round-trip. United Airlines is currently priced 16% below the average price you’ll pay for this route.

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

    $205 is the cheapest one-way deal found within the past few days, from Volaris. You may also be able to find cheap deals on United Airlines and Frontier, with prices starting from $222 and $224, 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, August is the cheapest month in which you can book a flight from Cancún to Ontario (average of $246). Flying from Cancún to Ontario in March is currently the most expensive (average of $328). 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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