$39 Find Cheap Flights from Ontario to Mexico

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 Mexico departing on 11/15. 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

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Cheap Flights from Ontario to Mexico

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Cancún
Cancún1 stop$336
Mexico City
Mexico City1 stop$325
Guadalajara
Guadalajaranonstop$297
Puerto Vallarta
Puerto Vallarta1 stop$324
León
Leónnonstop$194
Tijuana
Tijuana1 stop$306
Oaxaca
Oaxaca1 stop$363
Monterrey
Monterrey1 stop$317
Morelia
Morelianonstop$174
Mérida
Mérida1 stop$433
Mazatlán
Mazatlán1 stop$476
Ixtapa
Ixtapa1 stop$381
Aguascalientes
Aguascalientes2 stops$516
Veracruz
Veracruz3 stops$428
La Paz
La Paz2 stops$429
Cancún
Cancún1 stop$336
Mexico City
Mexico City1 stop$325
Guadalajara
Guadalajaranonstop$297
Puerto Vallarta
Puerto Vallarta1 stop$324
León
Leónnonstop$194
Tijuana
Tijuana1 stop$306
Oaxaca
Oaxaca1 stop$363
Monterrey
Monterrey1 stop$317
Morelia
Morelianonstop$174
Mérida
Mérida1 stop$433
Mazatlán
Mazatlán1 stop$476
Ixtapa
Ixtapa1 stop$381
Aguascalientes
Aguascalientes2 stops$516
Veracruz
Veracruz3 stops$428
La Paz
La Paz2 stops$429

Book Cheap Ontario to Mexico Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Mexico 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 Mexico

Tue, Nov 11 - Fri, Nov 14
Volaris Logo
11:59 pm - 5:13 amONT-MLM
3h 14mnonstop
Volaris Logo
9:11 am - 11:00 amMLM-ONT
3h 49mnonstop
$174Volaris
Find Deal
Wed, Dec 31 - Wed, Jan 7
Volaris Logo
12:50 pm - 4:12 pmONT-SJD
2h 22mnonstop
Volaris Logo
5:06 pm - 6:44 pmSJD-ONT
2h 38mnonstop
$176Volaris
Find Deal
Mon, Nov 10 - Thu, Nov 13
Volaris Logo
12:50 pm - 4:12 pmONT-SJD
2h 22mnonstop
Volaris Logo
5:06 pm - 6:44 pmSJD-ONT
2h 38mnonstop
$178Volaris
Find Deal
Wed, Mar 18 - Mon, Mar 23
Frontier Logo
11:34 pm - 3:32 amONT-GDL
2h 58mnonstop
Frontier Logo
8:53 pm - 11:14 pmGDL-ONT
3h 21mnonstop
$297Frontier
Find Deal
Thu, Jan 29 - Mon, Feb 9
Frontier Logo
12:42 am - 5:40 amONT-GDL
2h 58mnonstop
Frontier Logo
6:54 pm - 8:11 pmGDL-ONT
3h 17mnonstop
$306Frontier
Find Deal
Thu, Jan 22 - Tue, Jan 27
United Airlines Logo
6:00 am - 10:35 pmONT-GDL
14h 35m1 stop
United Airlines Logo
5:45 am - 8:58 pmGDL-ONT
17h 13m2 stops
$310United Airlines
Find Deal
Thu, Jan 15 - Sat, Jan 24
American Airlines Logo
12:57 pm - 9:28 pmONT-GDL
6h 31m1 stop
American Airlines Logo
4:44 pm - 10:08 amGDL-ONT
19h 24m1 stop
$312American Airlines
Find Deal
Thu, Jan 22 - Wed, Feb 4
United Airlines Logo
6:00 am - 10:35 pmONT-GDL
14h 35m2 stops
United Airlines Logo
3:22 pm - 9:58 pmGDL-ONT
8h 36m1 stop
$320United Airlines
Find Deal
Sat, Dec 13 - Sat, Dec 20
American Airlines Logo
4:47 pm - 1:42 pmONT-PVR
18h 55m1 stop
American Airlines Logo
3:48 pm - 8:48 amPVR-ONT
19h 00m1 stop
$335American Airlines
Find Deal
Tue, Dec 9 - Tue, Dec 16
Alaska Airlines Logo
6:00 am - 4:35 pmONT-PVR
8h 35m1 stop
Alaska Airlines Logo
3:13 pm - 8:03 pmPVR-ONT
30h 50m1 stop
$420Alaska Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Ontario to Mexico flights

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

What is the cheapest Ontario to Mexico flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Mexico from Ontario found in the last 72 hours was to León, at $107 round-trip. The most popular route is from Ontario (ONT) to Guadalajara (GDL), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $253.

Can I save money by flying with a layover from Ontario to Mexico?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $296, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Mexico, 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 Mexico is July, when tickets cost $494 (return) on average. On the other hand, the most expensive months are May and April, when the average cost of round-trip tickets is $551 and $548 respectively.

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

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 Mexico, 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 Mexico, you should book around 2 weeks before departure, which saves you about 14% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low seasonApril
Cheapest flight$39
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from Ontario to Morelia

FAQs - booking Mexico flights

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

    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 Mexico.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ontario to Mexico 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 Mexico?

    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 from Ontario to Mexico with an airline and back with another airline.

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

    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 from Ontario to Mexico up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Mexico?

    The cheapest time of day to fly to Mexico is generally in the evening, when round-trip flights cost $317 on average. Morning departures are around 77% more expensive than evening flights, on average. The most expensive time of day to fly to Mexico is generally in the morning, which is peak travel time and where the average cost of a ticket is $563.

Top tips for finding cheap flights to Mexico

  • Looking for a cheap flight? 25% of our users found tickets from Ontario to the following destinations at these prices or less: Guadalajara $139 one-way - $338 round-trip; San José del Cabo $43 one-way - $179 round-trip

Reviews of the top 5 airlines serving from Ontario to Mexico

 
Need help choosing which airline to fly with from Ontario to Mexico? 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 4242 reviews
8.1Boarding
7.5Entertainment
8.6Crew
8.0Comfort
7.0Food
Airline reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

8.0 ExcellentGreg, Oct 2025OAK - BUR
Read more Southwest reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

No trays in our seats, we sat in first row, purchased a business class fare. Had to hold our drinks and snack in our hands. No plugs for our cell phones. Had to pay for it a drink cocktail each. Seats so uncomfortable.

Flight wasn’t even full, but too many carry-ons caused us to run out of bin space. New bag fee has folks who would usually check their bags carrying on. Watching Southwest morph into Spirit/Frontier is so sad to watch

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

It was a perfect flight in all aspects! Both legs!

Same as last comment. Food sucks. Quality. Not surprising most people have no clue about nourishment Clearly

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

We were in business class. the angled seats in that class do not have a real window view & the placement of the controls are bad. But we knew that. But the food options were mediocre. The taste was fine, but the size was for a child. It’s just really feels like United is skimping on everything. Even when we were in the Polaris lounge they did not have diet sodas. They said they were out no Coke zero no Diet Coke, etc. I do not think the portion of nuts they serve on the plane could get any smaller. Really a minimal service and offer for what you’re paying for in business.

I was in first class. The outlets at my seat did not work. The plane was shabby and run down. I had prepurchsed a day subscription for internet that was not redeemable. I had to repurchase the internet for my flight and then it didn’t work anyway. Quite disappointed in what was supposed to be the launch of a great vacation.

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

From the first moment you interact with United Airlines, you can expect nothing less but extreme frustration. The baggage handler at the bag drop seems completely unbothered by the presence of customers waiting in line. No help was extended to load the baggage whatsoever. And if any of your bags is overweight by 0.01 pound they will make you re-distribute everything in your suitcase just to play power trip. When it was time to board no help was extended to customers to locate their seats. Moreover. It was a chaotic mess at the gate when it was unclear who should board first and everyone just bunched up, trying to get on the plane. I am sure the crew was doing their best to perform their jobs while being paid their wages however it shouldn’t be that hard to smile once or twice when you’re in the business if serving customers. It is a shame for the United States of America to have a flagship carrier of such low caliber. Our flight was also delayed by about an hour and a half due to further delays prior to our inbound flight. Being someone who has travelled for both business and leisure in Asia, Europe, and South America I have never experienced such poor quality of service.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

The pilots were late and it made us 1 hour late. The meat was tough and bok choy was also tough.

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

The flight was flawless and we even arrived between 20 and 25 minutes early!

Always seated jammed in rear of aircraft Admirals Club food at DFW terminal D was absolute worst food experience and I pay $600/year to eat this dried out junk

Mostly good. Flight was crowded but Airline personnel were very friendly & accommodating. It would be good to have savory snacks rather than just sweet Biscoff cookies.

It was a red eye flight, so no meals were provided, but it was fine with snacks. The seats felt cramped and almost too narrow.

Very crowded flight but what can you expect these days?? Crew was accommodating.

The seats in economy were appeared to be quite thin and lack sufficient cushioning to be comfortable. Perhaps it was my seating position but the plane seemed notably load.

The entertainment package was vast and the selections were very current. Keep updating it was great.

The seat was so hard my tailbone was aching The crew was kind of a b**** because I made a joke that I didn't care if they close the door I total c*** when she was trying to f****** act like she was mad at me because I said that The flight was bumpy. Sure you didnt have control over that.

4 hours late, including over +1 hour waiting in plane to take off. Baggage left behind too.

While waiting to claim my checked luggage, I discovered the airline had lost it. After a long wait and inquiries, I discovered it was on another flight. Fortunately, the airline finally sent my luggage home.

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.

The check-in is either at a kiosk that didn’t allow me to check-in because my middle name was not on the reservation or at an agent that cost $15.

Liked on time, rear entry and exit from plane Dislike the use of duct tape to repair seat rests

Terrible. And they charged over $400 just for luggage. And threatened that I would loose my flight if I didn’t pay. So I didn’t have another choice but to pay.

They check you everything before entering to waiting room, if you have any liquid they take it away even if you buy it inside the airport, no recommend volaris, for mi know Alaska airline is better

They don’t give anything for free you have to pay for everything which it’s expected but at least give out water and a snack as a courtesy for flying with them.

I got to where I needed to go quickly. There were no amenities. And the seats were painful.

The worst. Kayak sent notification at 2am and 10am regarding the delay. Then sends a notification an hour before original depart time that it will depart on time. I had to wait 8 hours at the airport. My family had to pay for lodging in Guadalajara where I was landing for pick up.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

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.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Frontier had yet another flight cancellation. Have never made a complete round trip with this airline without at least one leg getting cancelled. Miserable flights - dirty, uncomfortable planes that apparently always have issues since I've had multiple delays and cancellations with them.

Flight was delayed 3 times, would have been nice to have received text message instead of email notifications. Frontier app wasn’t even updated accordingly, no gate number disclosed. No agent at front desk of gate to inform of delay. Very confused and left if the dark

They changed the timing , first delayed by 4 hours then went back to 40 mins late, we had to run back to airport to not miss our flight. This is ridiculous

No frills for sure. No gate announcements about flight delay, not even water to drink on the flight.

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

Information on your arrival and departure airports

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