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$158+ 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 7/29. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CUN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 12, 2025.

Round-trip from

$344
(American Airlines)

One-way from

$158
(Delta)

Popular in

November

Cheapest in

February

Average price

$574
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 ($31 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 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/11. 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.
Mon 8/46:15 amONT - CUN
1 stop6h 55mAmerican Airlines
Wed 8/137:45 amCUN - ONT
1 stop7h 54mAmerican Airlines
Deal found 6/11$344
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/3010:05 pmONT - CUN
1 stop8h 50mDelta
Wed 7/94:20 pmCUN - ONT
1 stop9h 22mDelta
Deal found 6/10$353
This Priceline deal was found by Cheapflights users on 6/11. 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.
Wed 7/235:21 pmONT - CUN
1 stop20h 59mFrontier
Wed 7/303:25 pmCUN - ONT
1 stop19h 44mFrontier
Deal found 6/11$363
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Mon 7/75:05 amONT - CUN
1 stop7h 35mUnited Airlines
Wed 7/97:51 amCUN - ONT
2 stops11h 34mUnited Airlines
Deal found 6/11$410
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/105:14 pmONT - CUN
2 stops20h 01mMultiple Airlines
Fri 8/1510:37 amCUN - ONT
1 stop10h 37mMultiple Airlines
Deal found 6/10$415
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/225:00 amONT - CUN
1 stop14h 00mSouthwest
Thu 8/73:55 pmCUN - ONT
1 stop9h 00mSouthwest
Deal found 6/11$474
This Kissandfly.com deal was found by Cheapflights users on 6/10. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/312:59 amONT - CUN
1 stop13h 21mVolaris
Wed 8/133:25 pmCUN - ONT
1 stop10h 25mVolaris
Deal found 6/10$475
This Aeromexico deal was found by Cheapflights users on 6/11. 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.
Tue 8/197:05 amONT - CUN
1 stop11h 15mAeromexico
Fri 8/294:10 pmCUN - ONT
1 stop8h 30mAeromexico
Deal found 6/11$503

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 12, 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 8/4

6:15 am-3:10 pm

1 stop6h 55m

Cancun

Wed 8/13

7:45 am-1:39 pm

1 stop7h 54m

$344

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Mon 6/30

10:05 pm-8:55 am

1 stop8h 50m

Cancun

Wed 7/9

4:20 pm-11:42 pm

1 stop9h 22m

$353

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Wed 7/23

5:21 pm-4:20 pm

1 stop20h 59m

Cancun

Wed 7/30

3:25 pm-9:09 am

1 stop19h 44m

$363

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Mon 7/7

5:05 am-2:40 pm

1 stop7h 35m

Cancun

Wed 7/9

7:51 am-5:25 pm

2 stops11h 34m

$410

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Sun 8/10

5:14 pm-3:15 pm

2 stops20h 01m

Cancun

Fri 8/15

10:37 am-7:14 pm

1 stop10h 37m

$415

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Sun 6/22

5:00 am-9:00 pm

1 stop14h 00m

Cancun

Thu 8/7

3:55 pm-10:55 pm

1 stop9h 00m

$474

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Sun 8/3

12:59 am-4:20 pm

1 stop13h 21m

Cancun

Wed 8/13

3:25 pm-11:50 pm

1 stop10h 25m

$475

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Tue 8/19

7:05 am-8:20 pm

1 stop11h 15m

Cancun

Fri 8/29

4:10 pm-10:40 pm

1 stop8h 30m

$503

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Tue 7/29

10:05 pm-8:55 am

1 stop8h 50m

$158

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Mon 6/23

12:59 am-4:22 pm

1 stop13h 23m

$168

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 20 results
1
2

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 9, 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 12, 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 12, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta 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

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

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

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

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
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

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
1,706 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

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 $344, American Airlines will fly you from Ontario to Cancún and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Frontier - these airlines can fly you to your destination from $353 and $363, respectively. American Airlines is currently priced 36% 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 Delta. According to our data, you can fly for as low as $158. Users have also found prices from $168 and $176 on Frontier and British Airways, 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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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 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$243Average$369FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$286Average$501FlexibilityNo cancel feeOn-time75%
VivaCheapest$286Average$461FlexibilityNo cancel feeOn-timeN/A
VolarisCheapest$339Average$444FlexibilityNo cancel feeOn-time79%
DeltaCheapest$356Average$498FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$440Average$581FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$451Average$571FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$469Average$639FlexibilityNo cancel feeOn-time63%

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