£188 Cheap Flights from Ontario Intl. Airport (ONT) to Cancun (CUN)

View £188 flight on Tue, 8 Sept 2026Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Cancun Intl. Airport (CUN)

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Cheap Flights from Ontario Intl. Airport (ONT) to Cancun (CUN)

Prices were available within the past 7 days and start at £188 for one-way flights and £456 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, 8 Jul - Sat, 11 Jul
ONT
Ontario
CUN
Cancun
£456 Return, found 3 days ago
£456
Return
found 3 days ago
Select United flight, departing Wed, 8 Jul from Ontario to Cancun, returning Sat, 11 Jul, priced at £456 found 3 days ago
American Airlines
Tue, 18 Aug - Tue, 25 Aug
ONT
Ontario
CUN
Cancun
£470 Return, found 4 days ago
£470
Return
found 4 days ago
Select American Airlines flight, departing Tue, 18 Aug from Ontario to Cancun, returning Tue, 25 Aug, priced at £470 found 4 days ago
American Airlines
Wed, 8 Jul - Sat, 11 Jul
ONT
Ontario
CUN
Cancun
£479 Return, found 3 days ago
£479
Return
found 3 days ago
Select American Airlines flight, departing Wed, 8 Jul from Ontario to Cancun, returning Sat, 11 Jul, priced at £479 found 3 days ago
American Airlines
Mon, 30 Nov - Fri, 4 Dec
ONT
Ontario
CUN
Cancun
£524 Return, found 4 days ago
£524
Return
found 4 days ago
Select American Airlines flight, departing Mon, 30 Nov from Ontario to Cancun, returning Fri, 4 Dec, priced at £524 found 4 days ago
American Airlines
Thu, 18 Jun - Thu, 25 Jun
ONT
Ontario
CUN
Cancun
£530 Return, found 3 days ago
£530
Return
found 3 days ago
Select American Airlines flight, departing Thu, 18 Jun from Ontario to Cancun, returning Thu, 25 Jun, priced at £530 found 3 days ago
American Airlines
Thu, 4 Mar - Mon, 8 Mar
ONT
Ontario
CUN
Cancun
£531 Return, found 3 days ago
£531
Return
found 3 days ago
Select American Airlines flight, departing Thu, 4 Mar from Ontario to Cancun, returning Mon, 8 Mar, priced at £531 found 3 days ago
American Airlines
Tue, 18 Aug - Tue, 25 Aug
ONT
Ontario
CUN
Cancun
£533 Return, found 4 days ago
£533
Return
found 4 days ago
Select American Airlines flight, departing Tue, 18 Aug from Ontario to Cancun, returning Tue, 25 Aug, priced at £533 found 4 days ago
American Airlines
Mon, 7 Dec - Sun, 13 Dec
ONT
Ontario
CUN
Cancun
£534 Return, found 3 days ago
£534
Return
found 3 days ago
Select American Airlines flight, departing Mon, 7 Dec from Ontario to Cancun, returning Sun, 13 Dec, priced at £534 found 3 days ago
Delta
Thu, 6 Aug - Sun, 16 Aug
ONT
Ontario
CUN
Cancun
£556 Return, found 6 hours ago
£556
Return
found 6 hours ago
Select Delta flight, departing Thu, 6 Aug from Ontario to Cancun, returning Sun, 16 Aug, priced at £556 found 6 hours ago
JetBlue Airways
Mon, 25 May - Mon, 1 Jun
ONT
Ontario
CUN
Cancun
£650 Return, found 1 day ago
£650
Return
found 1 day ago
Select JetBlue Airways flight, departing Mon, 25 May from Ontario to Cancun, returning Mon, 1 Jun, priced at £650 found 1 day ago

Alternative airports near Cancun

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Cancun Intl. CUN. Cheapest and Closest option available. Average driving time to city centre is 18 minutes. Flights from £1,018
CUN
Cancun Intl.
CheapestClosest
Average driving time to city centre18 min
Flights from £1,018

Find the cheapest month to fly from Ontario (ONT) to Cancun (CUN)

May is typically the cheapest month to fly

From £198 - £323 per traveller.

Frequently asked questions

How much does a flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) cost?
One-way flights typically cost between £340 and £1,012 and return flights often range between £340 and £1,012. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.
What is the cheapest month to fly from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
September is typically the cheapest month to fly from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.), with average return fares of approximately £614. This is about 18% lower than the average price throughout the year. September often sees lower prices because it falls outside of peak holiday seasons, when demand for travel tends to decrease. Other cheap months to fly from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) include August and October.
How do I find cheap flights from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
To find a cheap flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
The best time to fly from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) is September. This month offers a great balance, as it's one of the cheapest times to fly, with average return flights around £614, and it's also a popular time to travel, meaning you'll have plenty of flight options. This information is based on booking data from the past year.
How many flights per day from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
There are approximately 57 connecting flights per day from Los Angeles - Ontario Intl. (ONT) to Cancun Intl. (CUN). Some common connection points include Dallas-Fort Worth Intl. (DFW), Denver Intl. (DEN), and Seattle - Tacoma Intl. (SEA).
What is the earliest flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
The earliest flight from Los Angeles - Ontario Intl. (ONT) to Cancun Intl. (CUN) typically departs at approximately 12:05 AM local time, operated by Frontier Airlines. This is a seasonal service active in May. An early departure like this can help you maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
You'll typically find the most flights from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) on a Thursday, with around 39 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Southwest Airlines, United Airlines, and Delta Air Lines. Flight schedules are consistent throughout the week.
What are the most popular departure times for flights from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
The most popular departure times for flights from Los Angeles - Ontario Intl. (ONT) to Cancun Intl. (CUN) are in the early morning, from 6am to 9am. Approximately 38% of passengers prefer this time window. Many major carriers, including American Airlines, United Airlines and Delta Air Lines, offer flights during this window. These times work well because you can get an early start to your travel day and arrive in Cancun with plenty of time to settle in and begin your holiday.
How long does it take to fly from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
A flight from ONT to CUN with a layover takes around 11 hours 20 minutes, with the route covering approximately 2,075 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
Select the "Business class" and "First class" filters when looking for ONT to CUN flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) flight with Expedia?
It's easy to earn miles on a Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Cancun from Los Angeles - Ontario Intl. (ONT)?
If you're planning to travel to Cancun from Los Angeles - Ontario Intl. (ONT), you can fly directly into Cancun Intl. (CUN) Some flights may connect through major hubs like Portland Intl. (PDX), Seattle - Tacoma Intl. (SEA), Sky Harbor Intl. (PHX) before reaching Cancun. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) at the last minute?
Typically, booking a last minute flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) flight and hotel package?
Securing a Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
If you booked your Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Ontario Intl. Airport
Destination airport
Cancun Intl.
Airlines serving
Aeromexico, American Airlines, Delta, United
Return price
£455
Distance
3318 km

Book with confidence

Compare flights from Ontario Intl. Airport to Cancun easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Ontario Intl. Airport to Cancun. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Cancun Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Ontario Intl. Airport to Cancun Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Ontario Intl. Airport (ONT) to Cancun Intl. (CUN)

The easiest way to view the best deals on flights from Ontario Intl. Airport to Cancun today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Ontario Intl. Airport to Cancun Intl. start at just £456 and range up to £650.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Ontario Intl. Airport and Cancun
  • booking your flight during July, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Ontario Intl. Airport to Cancun flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Ontario Intl. Airport to Cancun Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Ontario Intl. Airport to Cancun easily and book with confidence

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