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$139+ 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 7/6. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CUN
Jun 21 — Jun 281
Sat 6/21
Sat 6/28
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Cancun are usually found in February or September, booked 69 days in advance, depart on a Tuesday or Monday and return on a Monday

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 June 16, 2025.

Round-trip from

$308
(Priceline)

One-way from

$139
(Priceline)

Popular in

November

Cheapest in

February

Average price

$567
From Ontario to Cancun
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One-way flight from Ontario to Cancun
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Highest demand for flights based on searches. 5% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 16, 2025.

This Priceline deal was found by Cheapflights users on 6/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/712:59 amONT - CUN
1 stop13h 21mFrontier
Tue 7/153:25 pmCUN - ONT
1 stop10h 25mFrontier
Deal found 6/14$308
This Trip.com deal was found by Cheapflights users on 6/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1012:59 amONT - CUN
1 stop13h 21mMultiple Airlines
Wed 7/235:56 pmCUN - ONT
1 stop7h 17mMultiple Airlines
Deal found 6/15$347
This United Airlines deal was found by Cheapflights users on 6/16. 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.
Sun 8/316:00 amONT - CUN
1 stop8h 12mUnited Airlines
Fri 9/51:04 pmCUN - ONT
1 stop9h 29mUnited Airlines
Deal found 6/16$353
This Delta deal was found by Cheapflights users on 6/14. 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.
Mon 9/14:50 pmONT - CUN
2 stops18h 00mDelta
Fri 9/512:40 pmCUN - ONT
2 stops12h 00mDelta
Deal found 6/14$358
This American Airlines deal was found by Cheapflights users on 6/16. 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.
Wed 6/256:10 amONT - CUN
1 stop11h 57mAmerican Airlines
Wed 7/21:00 pmCUN - ONT
1 stop12h 59mAmerican Airlines
Deal found 6/16$406
This CheapOair deal was found by Cheapflights users on 6/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/191:09 amONT - CUN
1 stop13h 49mVolaris
Mon 8/255:56 pmCUN - ONT
1 stop7h 11mVolaris
Deal found 6/14$431
This Alaska Airlines deal was found by Cheapflights users on 6/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/197:25 pmONT - CUN
1 stop18h 55mAlaska Airlines
Tue 10/284:00 pmCUN - ONT
1 stop20h 44mAlaska Airlines
Deal found 6/14$483
This Kissandfly.com deal was found by Cheapflights users on 6/15. 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.
Sun 8/176:31 pmONT - CUN
1 stop16h 29mLufthansa
Sun 8/317:51 amCUN - ONT
1 stop15h 34mLufthansa
Deal found 6/15$514

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 June 16, 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

Mon 7/7

12:59 am-4:20 pm

1 stop13h 21m

Cancun

Tue 7/15

3:25 pm-11:50 pm

1 stop10h 25m

$308

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Thu 7/10

12:59 am-4:20 pm

1 stop13h 21m

Cancun

Wed 7/23

5:56 pm-11:13 pm

1 stop7h 17m

$347

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Sun 8/31

6:50 pm-10:04 am

2 stops13h 14m

Cancun

Fri 9/5

3:01 pm-9:25 pm

1 stop8h 24m

$353

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Mon 9/1

4:50 pm-12:50 pm

2 stops18h 00m

Cancun

Fri 9/5

12:40 pm-10:40 pm

2 stops12h 00m

$358

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Wed 6/25

6:10 am-8:07 pm

1 stop11h 57m

Cancun

Wed 7/2

1:00 pm-11:59 pm

1 stop12h 59m

$406

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Tue 8/19

1:09 am-4:58 pm

1 stop13h 49m

Cancun

Mon 8/25

5:56 pm-11:07 pm

1 stop7h 11m

$431

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Sun 8/17

6:31 pm-1:00 pm

1 stop16h 29m

Cancun

Sun 8/31

7:51 am-9:25 pm

1 stop15h 34m

$514

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Sun 7/6

12:59 am-4:20 pm

1 stop13h 21m

$139

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Tue 8/26

10:50 am-8:05 pm

1 stop7h 15m

$157

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Wed 8/20

10:00 pm-11:30 am

2 stops11h 30m

$162

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

Showing 1-10 of 19 results
1
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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 June 13, 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, January is the cheapest month in which you can book a flight from Ontario to Cancún (average of $360). Flying from Ontario to Cancún in March is currently the most expensive (average of $492). 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 June 16, 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 44% versus a flight in the morning.

What is the cheapest day to fly from Ontario to Cancún?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Cancún. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Ontario to Cancún flight should consider departing on Friday afternoons when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Cancún by month

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

In terms of precipitation, rainfall in Cancún ranges from 1.1 - 11.1 inches per month. October is typically the wettest month, when rainfall can reach 11.1 in. April is typically the driest time to visit Cancún when rainfall is around 1.1 in.

Temperature in Cancún by month

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

If weather is an important factor for your trip to Cancún, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 86.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 75.2 F).

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 June 16, 2025.
See what other customers who have flown with Alaska Airlines, Delta and Aeromexico from Ontario to Cancún have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,963 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Aeromexico
7.5
Good
1,711 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,801 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    Currently priced at $308, 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 Delta and United Airlines - these airlines can fly you to your destination from $353 and $415, respectively. Frontier is currently priced 43% below the average price you’ll pay for this route.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $139. Users have also found prices from $157 and $162 on American Airlines and Delta, respectively.

  • 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, January is the cheapest month in which you can book a flight from Ontario to Cancún (average of $360). Flying from Ontario to Cancún in March is currently the most expensive (average of $492). 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 Ontario?

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

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Alternative routes for Ontario to Cancún

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Top 8 airlines flying from Ontario to Cancún

Discover the top 8 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 June 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$243Average$384FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$286Average$501FlexibilityNo cancel feeOn-time75%
VivaCheapest$286Average$461FlexibilityNo cancel feeOn-timeN/A
VolarisCheapest$339Average$446FlexibilityNo cancel feeOn-time79%
DeltaCheapest$356Average$477FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$442Average$579FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$451Average$567FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$469Average$641FlexibilityNo cancel feeOn-time63%

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