$36 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 5/16. 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$270
Mexico City
Mexico City1 stop$271
Guadalajara
Guadalajaranonstop$288
Puerto Vallarta
Puerto Vallarta1 stop$306
León
Leónnonstop$187
Monterrey
Monterrey1 stop$297
Oaxaca
Oaxaca1 stop$314
Tijuana
Tijuana1 stop$301
Morelia
Morelianonstop$164
Mérida
Mérida1 stop$295
Mazatlán
Mazatlán1 stop$318
Ixtapa
Ixtapa1 stop$349
Aguascalientes
Aguascalientes2 stops$418
Veracruz
Veracruz1 stop$353
La Paz
La Paz2 stops$338
Cancún
Cancún1 stop$270
Mexico City
Mexico City1 stop$271
Guadalajara
Guadalajaranonstop$288
Puerto Vallarta
Puerto Vallarta1 stop$306
León
Leónnonstop$187
Monterrey
Monterrey1 stop$297
Oaxaca
Oaxaca1 stop$314
Tijuana
Tijuana1 stop$301
Morelia
Morelianonstop$164
Mérida
Mérida1 stop$295
Mazatlán
Mazatlán1 stop$318
Ixtapa
Ixtapa1 stop$349
Aguascalientes
Aguascalientes2 stops$418
Veracruz
Veracruz1 stop$353
La Paz
La Paz2 stops$338

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, Apr 28 - Sun, May 10
Volaris Logo
12:57 am - 5:04 am
ONT
-
MLM
3h 07mnonstop
Volaris Logo
8:35 am - 11:00 am
MLM
-
ONT
3h 25mnonstop
$164Volaris
Sat, Mar 28 - Sun, Apr 5
Volaris Logo
12:25 am - 4:39 am
ONT
-
MLM
3h 14mnonstop
Volaris Logo
8:35 am - 11:00 am
MLM
-
ONT
3h 25mnonstop
$166Volaris
Tue, Mar 31 - Mon, Apr 6
Volaris Logo
12:57 am - 5:04 am
ONT
-
MLM
3h 07mnonstop
Volaris Logo
8:35 am - 11:00 am
MLM
-
ONT
3h 25mnonstop
$169Volaris
Thu, Apr 2 - Sun, Apr 12
Volaris Logo
12:57 am - 5:04 am
ONT
-
MLM
3h 07mnonstop
Volaris Logo
8:35 am - 11:00 am
MLM
-
ONT
3h 25mnonstop
$170Volaris
Thu, Mar 19 - Wed, Mar 25
Volaris Logo
12:57 am - 5:11 am
ONT
-
MLM
3h 14mnonstop
Volaris Logo
8:11 am - 11:00 am
MLM
-
ONT
3h 49mnonstop
$171Volaris
Tue, Mar 24 - Sun, May 3
Volaris Logo
12:57 am - 5:11 am
ONT
-
MLM
3h 14mnonstop
Volaris Logo
8:35 am - 11:00 am
MLM
-
ONT
3h 25mnonstop
$172Volaris
Tue, Mar 17 - Tue, Mar 24
Aeromexico Logo
10:25 pm - 12:45 pm
ONT
-
CZM
13h 20m
1 stop
Aeromexico Logo
2:00 pm - 9:00 pm
CZM
-
ONT
8h 00m
1 stop
$600Aeromexico
Wed, Mar 25 - Wed, Apr 1
United Airlines Logo
1:40 pm - 12:23 pm
ONT
-
CZM
21h 43m
2 stops
United Airlines Logo
3:52 pm - 9:56 am
CZM
-
ONT
19h 04m
2 stops
$604United Airlines
Wed, Mar 4 - Wed, Mar 25
Aeromexico Logo
10:20 pm - 1:55 pm
ONT
-
CZM
13h 35m
1 stop
Aeromexico Logo
2:00 pm - 9:00 pm
CZM
-
ONT
8h 00m
1 stop
$614Aeromexico
Wed, Mar 25 - Wed, Apr 1
United Airlines Logo
1:50 pm - 12:23 pm
ONT
-
CZM
21h 33m
2 stops
United Airlines Logo
3:52 pm - 9:50 pm
CZM
-
ONT
6h 58m
1 stop
$615United Airlines
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 $108 round-trip. The most popular route is from Ontario (ONT) to San José del Cabo (SJD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $180.

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 $260, 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 March, when tickets cost $422 (return) on average. On the other hand, the most expensive months are May and June, when the average cost of round-trip tickets is $564 and $559 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 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 seasonSeptember
Cheapest flight$37
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 24% increase in price.
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.

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 $134 one-way - $334 round-trip; San José del Cabo $44 one-way - $185 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 4280 reviews
8.1Boarding
7.0Food
8.0Comfort
8.6Crew
7.5Entertainment
Airline reviews

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.

8.0 ExcellentJoseph, Jan 2026
LGB - PHX
Read more Southwest reviews

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.

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

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.

Check-in and in-flight staff were better than average. The seat was a fair size but too hard and not enough padding. The cushion/pillow provided is poor (thin and seems to be disposable ,it provides no effective cushioning or support). Food was OK-ish but no choice of inflight snacks and no easy place to get drinks other than water (I could ask for juice by intruding into the staff area at the back of the plane) Entertainment was very good actually. Overall better than I expected from a US-based airline (sorry!) but compared to ANA or Singapore it was so-so. (I live in Japan so they are my comparative airlines)

Terrible. Our first time back on United for 10 years, the seats in Polaris class are small and uncomfortable. They have squished too many people in to get more $$$. The staff are not friendly and not wanting to accommodate. I asked for two salads rather than a main meal and was advised no we wont do that. Then asked what I would like for breakfast and given something else anyway. I will not be flying United International anytime soon.

The food was terrible this time. Otherwise pleasant, quiet, on-time.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

The flight crew where really good. Better then the crew from BNE to SFO

Food should be changed in menu Many muslims travels in this airlime they need to add one Halal meal

left on time, reasonable boarding process arrived early luggage came out quickly

Some flight attendants were great others were cranky. Seats were very tight and sitting on an aisle was very hard as the carts and people walking constantly bumped shoulder and arm.

It was great with United overall except for two things. 1) It was a 5-hour flight and we were with kids, so we were asking for extra snacks. They were extremely reticent to dole them out even though there wasn't any meal and the kids were starting to hit their limit towards the end. 2) Baggage didn't arrive until 80 minutes after we landed.

I’m so sorry, I can’t remember her name, I believe it was Dimpti. She was stellar, also a mature Asian flight attendant, lots of flowers in her hair, just as amazing! But literally the crew was AWESOME . Only downside is there weren’t any charging outlets. Maybe I needed to ask a flight attendant , but it would’ve been nice to have one easily accessible.

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.

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.

It would be nice to have some low carb options in the snacks.

The entertainment options were at best, fair. It was exactly the same as my outbound flight. It would have been more entertaining if there were some series from Apple TV, HBO, Showtime or other carriers for me to catch up with.

The flight was on time and arrived early. The crew were friendly and helpful.

While I didn’t watch much tv I would have liked a few more options of TV series from Apple TV or hbo max ..

Overall experience was great. Flights were almost on time in departing and we arrived at our destination as scheduled. No issues with amenities or flight crew. Everything went well as as expected. Will fly again with American Airlines in the future!

The flight was very smooth and the meal in business class was great.

I requested a low sodium meal. Reason being, I take medicine for high blood pressure and I wear compression socks on long flights to help with leg swelling. Having less sodium in meals really helps me feel better on long flights. I received my initial low sodium meal after takeoff. Just before landing, the crew came through with the meal cart and offered me what was being served. I said no thank you and then noticed my low sodium meal in the meal cart, with my name and seat assignment on it. I motioned to the crew member, but he grabbed the meal cart and proceeded to move to the rear of the aircraft. He didn’t see me or other passengers who had attempted to get this attention. He was more concerned about completing meal service since we were due to land in under 45 minutes. I pressed the call light five times from my seat to receive help, but no crew member responded to me. So, I didn’t receive a second meal, one that I requested (the low sodium option). This led me to have a migraine from only eating one meal on an 11-hour flight. This is why I’m not a fan of flying US-based airlines overseas. The crew members continue to show the absolute worst customer service experience. I would not recommend flying American for overseas flights.

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.

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

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.

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

I am writing to express my disappointment with my recent Frontier Airlines flight. I was charged $99 at the gate because my bag was said to be too large, yet once onboard there was no available overhead bin space, and I was required to place the bag under the seat in front of me anyway. This made the charge feel unnecessary and unfair. Additionally, before the flight even took off, I was asked to move from the seat I paid for into a middle seat so another passenger and her cat could have my seat to themselves. I was not offered compensation or an explanation for being moved from a paid seat. Between the unexpected bag fee and being forced to give up my seat, this experience fell well below acceptable customer service standards. I would appreciate a review of this situation and appropriate compensation.

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.

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.

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

Information on your arrival and departure airports