ONT - CUN

$126 Find Cheap Flights from Ontario to Cancun

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 6/17. 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 Cancun

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

Cheapest round-trip
$328
Typical prices: $616-$424
Volaris
Wed 6/10Thu 6/18
ONT - CUN • 1 stop
Cheapest one-way
$126
Typical prices: $141-$297
Volaris
Wed 6/17
ONT - CUN • 1 stop
Top airlines
Cheapest • from $328 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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
Cheapest • Avg $420 (round-trip)
Shortest trip • 6h 23m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 13% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 18% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
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

Wed, Jun 10 - Thu, Jun 18
Volaris Logo
9:36 pm - 9:55 am
ONT
-
CUN
10h 19m
1 stop
Volaris Logo
4:32 pm - 11:05 pm
CUN
-
ONT
8h 33m
1 stop
$328Volaris
Thu, Jun 4 - Wed, Jun 24
Volaris Logo
12:55 am - 3:28 pm
ONT
-
CUN
12h 33m
1 stop
Volaris Logo
4:32 pm - 11:05 pm
CUN
-
ONT
8h 33m
1 stop
$333Volaris
Fri, Jun 5 - Sat, Jun 20
Volaris Logo
12:55 am - 3:28 pm
ONT
-
CUN
12h 33m
1 stop
Volaris Logo
4:32 pm - 11:05 pm
CUN
-
ONT
8h 33m
1 stop
$334Volaris
Wed, Jun 3 - Wed, Jun 24
Volaris Logo
12:55 am - 11:54 am
ONT
-
CUN
8h 59m
1 stop
Volaris Logo
4:32 pm - 11:05 pm
CUN
-
ONT
8h 33m
1 stop
$335Volaris
Thu, Jun 18 - Wed, Jun 24
Volaris Logo
9:36 pm - 9:55 am
ONT
-
CUN
10h 19m
1 stop
Volaris Logo
4:32 pm - 11:05 pm
CUN
-
ONT
8h 33m
1 stop
$336Volaris
Wed, Jun 10 - Wed, Jun 17
Volaris Logo
9:36 pm - 9:55 am
ONT
-
CUN
10h 19m
1 stop
Volaris Logo
12:43 pm - 11:05 pm
CUN
-
ONT
12h 22m
1 stop
$337Volaris
Thu, Jun 18 - Fri, Jun 26
Volaris Logo
9:36 pm - 9:55 am
ONT
-
CUN
10h 19m
1 stop
Volaris Logo
10:40 am - 7:46 pm
CUN
-
ONT
11h 06m
1 stop
$338Volaris
Sun, Jun 28 - Sat, Jul 4
Volaris Logo
9:36 pm - 11:54 am
ONT
-
CUN
12h 18m
1 stop
Volaris Logo
12:43 pm - 11:05 pm
CUN
-
ONT
12h 22m
1 stop
$340Volaris
Thu, Jun 11 - Mon, Jun 15
Volaris Logo
9:36 pm - 9:55 am
ONT
-
CUN
10h 19m
1 stop
Volaris Logo
12:43 pm - 7:46 pm
CUN
-
ONT
9h 03m
1 stop
$343Volaris
Mon, Jul 13 - Mon, Jul 20
Volaris Logo
12:55 am - 11:54 am
ONT
-
CUN
8h 59m
1 stop
Volaris Logo
4:32 pm - 11:05 pm
CUN
-
ONT
8h 33m
1 stop
$345Volaris
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.

How much is a round-trip flight from Ontario to Cancún?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Ontario to Cancún departing in June.

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

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 Cancun is March, where tickets cost $409 (return) on average. On the other hand, the most expensive months are April and May, where the average cost of round-trip tickets is $589 and $572 respectively.

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

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 Cancun, you should book around 2 weeks before departure, which saves you about 13% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$126
Best time to beat the crowds but there is an average 7% increase 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 Cancun?

    In the last 3 days, the lowest price for a flight from Ontario to Cancun was $126 for a one-way ticket and $328 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.

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

    The two airlines most popular with KAYAK users for flights from Ontario to Cancun are Southwest and Delta. With an average price for the route of $607 and an overall rating of 7.9, 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 Cancun

  • 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 Cancun. 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.
7.9
SouthwestOverall score based on 4305 reviews
7.5Entertainment
8.1Boarding
8.6Crew
7.0Food
8.0Comfort
Airline reviews

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

10.0 Excellentlarry, Apr 2026
LGB - PHX
Read more Southwest reviews

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The crew was very kind and made going to Hawaii relaxing and fun to look forward to! Thank you Southwest for a pleasant flight!

Terrible. Even though there’s assigned seating now, they are still the slowest boarding airline of anyone.

It was good from LAX to Phoenix, But the connection in Phoenix to Tulsa was not that great. The staff on both flights were great. The choice of free entertainment was ok nothing to brag about. The 45 min delay because of some electrical issue wasn't great from Phoenix to Tulsa. We sat there with hardly any air, The seat I had was between windows so the side of the plane pushed in on you. My being a bigger man it then made the seating area uncomfortable. The seats on the plane had no power to connect to recharge your phone or anything. I would recommend that they should look into a slot or clamp to hold your phone to enjoy while watching the entertainment choices hands-free. Also make it possible to raise the inner seat by the window be able to raise the arm rest up to make more room for larger people to set more comfortably. I would also say other then that stop price gouging the airfare or nickel and diming everything. Not fair for people having to fly for emergencies and be paying for higher prices due to the season or holidays. Your making your money either way and the cost of flying is still going to be the same regardless if there's 100 people or 200 people.

Southwest was greaat! The most expensive but the least upsetting for those we were flying to see.

Boarding was easy. The seats are small and fairly uncomfortable

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

I liked that my son and I were reseated next to each other (we had different bookings). I liked that it was a directg flight and mostly on time. I liked that you provided pillows and blankets. Flight attendants were generally courteous. The messaging through wifi did not work well. The food was not good. Seats are very narrow and I felt slightly claustraphobic in the window seat.

Some crew were unfriendly or in some cases just straight up rude.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

United Airline crews were very friendly and very attentive. 12 hours flight was gone like in a shorter one.

Food was surprisingly delicious. Space in the seat is horrible when the seating front is reclined. Movie offerings were terrible. Crew was friendly and helpful.

Flight itself excellent, but delayed so missed connection & got to destination 2 hrs later

Due to cancellation of connecting flight (Lufthansa) I didn’t fly with United

It was a red-eye, but the flight felt surprisingly quick. The seats were very comfortable, and that made resting much easier. I also want to thank the gentleman seated next to me, who graciously moved so my mom could sit beside me. We slept almost the entire way. The cabin crew was respectful in not disturbing us, while also being courteous and professional throughout. Thank you, United.

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

The crew was very attentive through out the flight. Seats were comfortable, nice flight bag with pillow and blanket. Food was okay, since it was a overnight flight seemed to go by fast.

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

Boarding gate at LAX was too crowded—two gates next to one another

On time departure and early arrival. Flight attendant very nice.

The business class layout of chairs was weired. You are sitting directly across stranger.,

The SFO Lounge crew were amazing. The bartender Faris was great. Thanks!

Friendly crew is the only nice thing. Seats uncomfortable. Food and snacks horrible. Movies were the same as the first 10 hour flight two weeks before

Was not able to do a online check-in because the American Airlines system doesn't store our visa or other passport information, allowing us to have a trouble-free check-in. We were forced to have to check-in at the counter which Changes are upgrade status given that we were not able to check in much earlier.

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

We left at 1030 am pacific from LA and supposed to land at 7 pm Eastern in NY. They made a detour, stopped in Philadelphia and didn’t land till 1130 PM Eastern!!! Worst flight experience with no pilot communication with no explanation as to what was going on. Everyone was very frustrated to say the least.

The flights were on time, the ground crew and on board crews were kind and efficient. The free snacks for Premium+ were good, similar to US First Class snacks. The plane were clean and bright! Complaints? The seats were worn and the seat-back pockets were missing. Overall, I'll book again with Volaris. Ignore the negative social media posts, understand what your fare includes, buy the add ons you need. We had no problems with our personal items and carryons.

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.

The money you save flying volaris is not worth it

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.

Frontier scheduled a 40 minute connection in DEN. What they failed to mention was that they “close the doors” 20 mins prior to departure, which means you only have 20 mins. Not enough time. Possibly against DOT regulations. Filing complaint.

Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy

The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

Remind customers of the need to have passport or new ID for boarding.

The flight never took off and we spent 7 hours at the airport

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.

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

Information on your arrival and departure airports