ONT - CUN

$98 Find Cheap Flights from Ontario to Cancún

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Cancún departing on 3/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Cancún

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Cancún.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Cancún.
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Everything you should know

Cheapest round-trip
$275
Overall average: $494
Volaris
Sun 7/5Thu 7/9
ONT - CUN • 1 stop
Cheapest one-way
$98
Typical prices: $170-$243
Volaris
Sun 3/15
ONT - CUN • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Ontario and Cancún. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Mexico City (MEX)
Cheapest • Avg $340 (round-trip)
Houston (HOU)
Shortest trip • 6h 23m (one-way)
Insights
Insights
Insights
Insights
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 19% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 11% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Cancún!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Cancún (ONT-CUN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Cancún that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Cancún

Sun, Jul 5 - Thu, Jul 9
Volaris Logo
12:55 am - 3:28 pm
ONT
-
CUN
12h 33m
1 stop
Volaris Logo
10:53 am - 7:23 pm
CUN
-
ONT
10h 30m
1 stop
$275Volaris
Tue, Mar 10 - Thu, Mar 19
Volaris Logo
12:27 am - 9:48 am
ONT
-
CUN
7h 21m
1 stop
Volaris Logo
1:02 pm - 10:37 pm
CUN
-
ONT
11h 35m
1 stop
$277Volaris
Wed, Jun 10 - Sat, Jun 20
Volaris Logo
12:55 am - 12:08 pm
ONT
-
CUN
9h 13m
1 stop
Volaris Logo
10:53 am - 7:23 pm
CUN
-
ONT
10h 30m
1 stop
$278Volaris
Sat, Jun 13 - Wed, Jun 24
Volaris Logo
12:55 am - 3:28 pm
ONT
-
CUN
12h 33m
1 stop
Volaris Logo
10:53 am - 7:23 pm
CUN
-
ONT
10h 30m
1 stop
$279Volaris
Sun, Mar 15 - Tue, Mar 24
Volaris Logo
11:02 pm - 12:05 pm
ONT
-
CUN
11h 03m
1 stop
Volaris Logo
4:18 pm - 10:37 pm
CUN
-
ONT
8h 19m
1 stop
$280Volaris
Tue, Mar 10 - Wed, Mar 18
Volaris Logo
12:27 am - 12:05 pm
ONT
-
CUN
9h 38m
1 stop
Volaris Logo
1:02 pm - 8:11 pm
CUN
-
ONT
9h 09m
1 stop
$282Volaris
Thu, Jul 2 - Tue, Jul 7
Volaris Logo
12:55 am - 3:28 pm
ONT
-
CUN
12h 33m
1 stop
Volaris Logo
10:53 am - 7:23 pm
CUN
-
ONT
10h 30m
1 stop
$284Volaris
Sat, May 2 - Thu, May 7
Volaris Logo
12:55 am - 3:28 pm
ONT
-
CUN
12h 33m
1 stop
Volaris Logo
10:53 am - 7:23 pm
CUN
-
ONT
10h 30m
1 stop
$286Volaris
Mon, Jun 8 - Thu, Jun 11
Volaris Logo
9:13 pm - 12:08 pm
ONT
-
CUN
12h 55m
1 stop
Volaris Logo
1:00 pm - 11:05 pm
CUN
-
ONT
12h 05m
1 stop
$287Volaris
Sat, Jun 6 - Sun, Jun 14
Volaris Logo
12:55 am - 3:28 pm
ONT
-
CUN
12h 33m
1 stop
Volaris Logo
10:53 am - 7:23 pm
CUN
-
ONT
10h 30m
1 stop
$288Volaris
Booking Insights

KAYAK's insights & trends for Ontario to Cancún flights

Get data-powered insights and trends into flights from Ontario to Cancún to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Cancún, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ontario to Cancún is January, where tickets cost $444 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $552 and $544 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Ontario to Cancún, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Ontario to Cancún, you should book around 2 weeks before departure, which saves you about 19% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$98
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Ontario to Cancun

When to book flights from Ontario to Cancún

Are your dates flexible? Find out the best times to travel from Ontario to Cancún based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Cancun

  • What are the common layover options for flights from Ontario to Cancun?

    All flights from Ontario to Cancun have at least one stop en route, as there are no nonstop flights. The layover options for flights on this route vary depending on your airline. Common layover airports for flights from Ontario to Cancun are Orlando International Airport (MCO), Phoenix International Airport (PHX), Dallas Fort Worth International Airport (DFW), Denver International Airport (DEN), and Charlotte Douglas (CLT).

  • Do airlines flying from Ontario to Cancun offer assistance services to passengers with reduced mobility?

    Yes, airlines flying from Ontario to Cancun offer assistance services to passengers with special needs. Each airline on this route runs a wheelchair assistance program to help passengers with reduced mobility navigate the airports easily. The airlines, including American Airlines, Southwest, and JetBlue, also have attendants who assist passengers with reduced mobility. We recommend informing your airline well in advance if you need a wheelchair or other mobility aid during your travel.

  • Do I need a visa to fly from Ontario to Cancun?

    US citizens are allowed to enter Cancun visa-free for stays up to 180 days. You must hold a valid passport book with at least two blank pages for stamping. US citizens with a passport card only may be denied entry to Cancun. Those planning to stay more than 180 days must have a Mexican tourist visa.

  • Are there public transportation options from Cancun International Airport to the city center?

    Yes. The local ADO Buses offer direct transportation from CUN to Downtown Cancun, Downtown Tulum, and Playa del Carmen. The buses pick up passengers just outside the terminals and drop them off at the Main Bus Terminal in the city center. The buses provide up to 70 daily services and do not restrict passenger luggage. We recommend booking your ticket in advance as these routes sell out quickly.

  • What is the cheapest flight from Ontario to Cancún?

    In the last 3 days, the lowest price for a flight from Ontario to Cancún was $98 for a one-way ticket and $275 for a round-trip.

  • Do I need a passport to fly between Ontario and Cancun?

    Yes

  • Which aircraft models fly most regularly from Ontario to Cancun?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Cancun?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Ontario and Cancun, with SkyTeam being the most commonly used for this route.

  • What is the most popular layover when flying to Cancun from Ontario?

    Dallas is the most popular layover city among KAYAK users traveling from Ontario to Cancun.

  • Which is the best airline for flights from Ontario to Cancún, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Ontario to Cancún are Southwest and Delta. With an average price for the route of $603 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $481 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Ontario to Cancun?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Cancun.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Cancun?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cancun from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Cancun?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Cancun with an airline and back to Ontario with another airline. Booking your flights between Ontario and CUN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Cancun?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Cancun from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Ontario to Cancún

  • Flights from Ontario to Cancun (CUN) depart from Ontario International Airport (ONT). The airport is about two miles from Downtown Ontario and about 18 miles from Downtown San Bernardino. The airport serves San Bernardino and Greater Los Angeles.
  • Each passenger flying from Ontario to Cancun emits approximately 2345 lb of CO2. American Airlines, Frontier, and Southwest fly some of the most sustainable flights from ONT to CUN. They offer one-stop and two-stop flights that emit 60%, 50%, and 46% less CO2, respectively.
  • Cancun International Airport (CUN) is the second busiest airport in Mexico, only after Mexico City International Airport. The airport is the main gateway to the Caribbean Coast of the Yucatan Peninsula regarding air travel.
  • Consider booking American Airlines if you're flying with an infant from Ontario to Cancun. The airline allows children under two years to travel on a parent's lap or an accompanying adult 16 years or older. Infants traveling this route must have the same documentation as adults.
  • If you want to fly with your pet from Ontario to Cancun, consider booking JetBlue, American Airlines, or United Airlines. These airlines allow passengers to bring small dogs and cats in the cabin when flying this route. The pet should be at least 12 weeks old and be secured in a carrier that allows the pet to turn around easily.

Reviews of the top 5 airlines serving from Ontario to Cancún

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Cancún. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Cancún? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4303 reviews
7.0Food
8.6Crew
7.5Entertainment
8.0Comfort
8.1Boarding
Airline reviews

The Southwest experience has definitely taken a dive from its early days. You can no longer deferentiate from other airlines. Air travel is too expensive. Southwest is no longer budget friendly. They have lost me as a loyal customer.

4.0 OkayDaniel, Feb 2026
LGB - PHX
Read more Southwest reviews

The Southwest experience has definitely taken a dive from its early days. You can no longer deferentiate from other airlines. Air travel is too expensive. Southwest is no longer budget friendly. They have lost me as a loyal customer.

The charges were ridiculous for an hour flight and the turbulence was very scary.

The seats are now more narrow. I paid for front row the seats in the front are even more narrow than before.

The wifi on the plane is great. The only issue that I have is that I prefer an aisle seat and on my trips this week, I was either in the middle or window. If we can work to secure aisle seating, I will be thrilled. Nice trip.

Great flight but super high price. Glad it was a business trip and not personal

3 hour delay. Had to change plans and was still delayed.

We got exit row seats both flights. Everything was running on time

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

Complimentary light meal would be appreciated. But great flight crew service on all legs

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

We had turbulence ever 1/2 hr or so and the captains announcements were SOOOO LOUD

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

it was a very short flight so my expectations were low.

Entertainment kept turning itself off. Gave up on watching a movie.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

Mediocre would be best description. Food bland. Seat biz class uncomfortable to sleep. Crew never dimmed lights completely in an overnight flight to Europe. Would avoid AA if possible.

Small plane, poor meal choices for first class, bad terminal and boarding experience at LAX

Massimo, flight attendant was very authentic, attentive - wonderful. Food/wrap was just okay.

Experience was great. The best part is the free Wi-Fi connection which helps me to work on the flight

The flight was fine. It's the satellite terminal that supports American eagle flights is what sucks. There is only one food option and everything there is way overpriced. I mean I know it's airport pricing, but it's even crazier than that. I bought a sandwich in a plastic container for $18.

The flight was really crowded. Flight attendants were just ok.

Flight was delayed for 2 hours, then last minute the change to on time. The satélite location is far and a nightmare to get to.

We flew in first class. The crew did not offer drinks before the flight took off, but they treated us well during the flight. The food was excellent. There was actually too much food served, but it was nice to have all the options.

Broke my luggage and I can't get a resolution yet.

For a 5 1/2 hour flite i considered the "business class" to be subpar. The seats were just ok, no amenities, really nothing more than a long domestic flight. Frankly disappointed.

Overall a good red eye. Crew chatted very loudly the whole time making it difficult to sleep.

It’s a 2 1/2 hour flight so good and comfort was not my real concern. Safety, easy, fast was what I was looking for. The crews were great, plane was clean, boarding from CBX was fantastic! Definitely traveling this way again.

Is was a good short flight with some turbulence! I would fly Volaris again.

We had boarding passes for the next flight but we could not catch the flight in the small airport just because volaris closed the boarding at the counters an hour before for which we had to sepnd almost 3+ hours to catch next flight. There are hardly anyone who can speak english, but thank God, we have found an young man who could not only speak English but helped us book for the next flight. The air crafts are noisy and scary sometimes to hear that squeeking noises during the take off and during the flight. They do not even offer a cup of coffee for free in flight. The prices are super high and the services are zero. That’s pretty much for this airlines in summary.

Unfortunately it was not a good flight got canceled had to be at the airport all night long to get a different flight to another airport my first flight with Volaris was very bad. Poor services

The boarding , and it would be nice if they would let us know head of time about flight changes

The fly was 2 hours delayed and the plane was old and dirty. A very umcorfotable flight, which I won't recomend to anyone

The flight was delayed by two hours. I had paid for extended leg room. Due to the delay, the plane was different and I didn't end up having extended leg room. I finally was able to reach Volaris on Whats App and they gave me an airline credit. I wanted a refund to the credit card since I hardly ever fly Volaris. Other than that, it was a very comfortable flight.

In Mexico charges too much for my luggage and I ask for help and nothing one lady she just disappeared 😡😡😡😡😡never going to fly there

Confusion over extra fees. Held up on ramp during boarding. Thin seat cushion. Minimal leg room.

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

This is my second time flying with Frontier. My current experience was very favorable. The staff from the gate to the plane was friendly, warm and professional. The food options lacked in my opinion. This area needs some attention in my opinion.

First of all we hade waited 3 hours in the airplane waiting to leave. Second the return schedule was changed and it messed up my entire vaction. I won't buy never again another flight and recommend to nobody traveling with them.

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

This airline sucks. They offer low rates then charge you for everything, the app does not work well, the seats are the most uncomfortable. Maintenance issues on the flight, and you still have to sit through their credit card commercials. People are nice enough but does not make up for overall poor experience.

Cancelled flight after I arrived at airport after 75 min drive and parking. Next flight was 4 days in the future. Had to scramble and buy a much more expensive flight on another carrier.

Everything you need to know for your flight from Ontario to Cancún

Information on your arrival and departure airports