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Cancún

$87+ Cheap flights from Ontario (ONT) to Cancún (CUN)

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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CUN
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Cancun are usually found in July or September, booked 69 days in advance, depart on a Tuesday or Monday and return on a Monday

Find flight deals from Ontario to Cancún

Cheapest flights from Ontario to Cancún
Explore the most affordable flight options available from Ontario to Cancún. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/122:05 pmONT - CUN
1 stop18h 31mMultiple Airlines
Fri 12/194:58 pmCUN - ONT
2 stops33h 15mMultiple Airlines
Deal found 11/12$312
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:45 amONT - CUN
1 stop31h 27mMultiple Airlines
Thu 1/82:04 pmCUN - ONT
2 stops36h 52mMultiple Airlines
Deal found 11/12$325
This Aeromexico deal was found by Cheapflights users on 11/13. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/76:00 amONT - CUN
1 stop7h 20mAeromexico
Fri 12/125:20 pmCUN - ONT
1 stop9h 38mAeromexico
Deal found 11/13$337
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/153:20 pmONT - CUN
2 stops22h 32mFrontier
Sat 12/2012:34 pmCUN - ONT
1 stop21h 50mFrontier
Deal found 11/12$351
This Kiwi.com deal was found by Cheapflights users on 11/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:00 amONT - CUN
2 stops26h 16mMultiple Airlines
Wed 12/311:54 pmCUN - ONT
1 stop21h 59mMultiple Airlines
Deal found 11/13$366
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2312:58 amONT - CUN
1 stop13h 22mFrontier
Mon 12/111:14 amCUN - ONT
2 stops37h 03mFrontier
Deal found 11/12$368
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/47:33 pmONT - CUN
1 stop14h 36mMultiple Airlines
Mon 12/811:23 amCUN - ONT
2 stops27h 04mMultiple Airlines
Deal found 11/12$383

Cheap flight deals from Ontario to Cancún

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Cancún (CUN). 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 November 13, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$262
(CheapOair)

One-way from

$87
(CheapOair)

Popular in

June

Cheapest in

July

Average price

$540
Provider with most accurate pricing for Ontario-Cancun flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Cancun flights.
Search Deals
From Ontario to Cancun
Search Deals
One-way flight from Ontario to Cancun
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($5 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Cancún 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 November 13, 2025.
Use the filters below to find and compare flights from Ontario to Cancún that are best for you.

Fly from

Ontario

Fly to

Cancún

Route

Depart

Return

Price

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Fri 12/12

10:25 pm-10:14 am

1 stop8h 49m

Cancun

Sat 12/20

12:25 pm-7:50 pm

1 stop10h 25m

$385

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Fri 12/12

10:25 pm-10:14 am

1 stop8h 49m

Cancun

Mon 12/22

1:40 pm-7:50 pm

1 stop9h 10m

$385

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Mon 12/8

10:25 pm-3:33 pm

1 stop14h 08m

Cancun

Fri 12/12

11:17 am-11:58 pm

2 stops15h 41m

$385

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Fri 12/12

10:25 pm-10:14 am

1 stop8h 49m

Cancun

Sun 12/21

12:25 pm-7:50 pm

1 stop10h 25m

$385

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Fri 12/12

10:25 pm-10:14 am

1 stop8h 49m

Cancun

Fri 12/19

5:20 pm-11:58 pm

1 stop9h 38m

$385

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Sun 12/7

10:25 pm-3:33 pm

1 stop14h 08m

Cancun

Fri 12/12

12:20 pm-11:58 pm

2 stops14h 38m

$387

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Wed 12/10

6:00 am-5:50 pm

1 stop8h 50m

Cancun

Wed 12/17

12:28 pm-10:49 pm

2 stops13h 21m

$389

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Sun 1/4

10:29 pm-4:45 pm

1 stop15h 16m

Cancun

Sat 1/10

12:15 pm-9:07 pm

1 stop11h 52m

$391

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Mon 1/26

10:30 pm-12:30 pm

1 stop11h 00m

Cancun

Sat 1/31

12:15 pm-9:07 pm

1 stop11h 52m

$391

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Sun 1/4

10:29 pm-11:15 am

1 stop9h 46m

Cancun

Fri 1/9

11:00 am-9:07 pm

1 stop13h 07m

$391

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 22 results
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Compare providers for flights from Ontario to Cancún

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 Ontario to Cancún in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice 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 Ontario-Cancún flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Ontario-Cancún flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Ontario-Cancún flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Cancún flights, Cheapflights users trust CheapOair the most. CheapOair 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 Ontario-Cancún 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 Ontario to Cancún

Have a flexible travel schedule? Discover the best time to fly to Cancún from Ontario 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 Ontario to Cancún

How far ahead should I book a flight from Ontario to Cancún?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Cancún. Price data was last updated on November 7, 2025.

The price you pay for your flight from Ontario to Cancún may vary depending on when you book. For the best chance of a lower fare, look to book 69 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, September is the cheapest month in which you can book a flight from Ontario to Cancún (average of $162). Flying from Ontario to Cancún in November is currently the most expensive (average of $281). 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 ONT to CUN?

Find hourly flight availability from Ontario to Cancún. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 13, 2025.

When flying from Ontario to Cancún, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 43% versus a flight in the morning.

Reviews of airlines servicing Cancún

Get insights into the airlines that provide service to Cancún. 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 Cancún. Reviews last updated November 13, 2025.
Read through reviews of airlines operating flights from Ontario to Cancún, such as Southwest, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
9,017 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
11,051 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Volaris
6.7
Okay
1,148 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,109 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Cancún. 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 Ontario to Cancún?

    A quick flight from Ontario to Cancún can take about 8h 49m. Delta provides one of the quickest options available for as low as $385. The distance from Ontario to Cancún is about 2073 mi.

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

    Currently priced at $243, Frontier will fly you from Ontario to Cancún and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Alaska Airlines and Volaris - these airlines can fly you to your destination from $286 and $313, respectively. Frontier is currently priced 54% below the average price you’ll pay for this route.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Cancún 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 Ontario to Cancún?

    Currently, September is the cheapest month in which you can book a flight from Ontario to Cancún (average of $162). Flying from Ontario to Cancún in November is currently the most expensive (average of $281). 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.

See more FAQs

Traveling to a place near Cancún?

Book flights to Cancún if you plan to visit one of these locations
Puerto Aventuras
Holbox
Punta Sam

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Top 6 airlines flying from Ontario to Cancún

Discover the top 6 airlines that operate flights from Ontario to Cancún. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$243Average$397FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$286Average$501FlexibilityNo cancel feeOn-time75%
VolarisCheapest$313Average$471FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$377Average$528FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$381Average$620FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$468Average$577FlexibilityNo cancel feeOn-time71%

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