$128 Find Cheap Flights from Ontario to Mexico - Compare and Save

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Cheap Flights from Ontario to Mexico

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Cancún
Cancún2 stops$369
Guadalajara
Guadalajara2 stops$309
Puerto Vallarta
Puerto Vallarta2 stops$361
León
León2 stops$356
Tijuana
Tijuana1 stop$422
Monterrey
Monterrey1 stop$359
Oaxaca
Oaxaca3 stops$497
Morelia
Morelianonstop$218
Mérida
Mérida1 stop$457
Mazatlán
Mazatlán1 stop$459
Ixtapa
Ixtapa1 stop$452
Aguascalientes
Aguascalientes3 stops$490
La Paz
La Paz1 stop$451
Veracruz
Veracruz1 stop$423
Cancún
Cancún2 stops$369
Guadalajara
Guadalajara2 stops$309
Puerto Vallarta
Puerto Vallarta2 stops$361
León
León2 stops$356
Tijuana
Tijuana1 stop$422
Monterrey
Monterrey1 stop$359
Oaxaca
Oaxaca3 stops$497
Morelia
Morelianonstop$218
Mérida
Mérida1 stop$457
Mazatlán
Mazatlán1 stop$459
Ixtapa
Ixtapa1 stop$452
Aguascalientes
Aguascalientes3 stops$490
La Paz
La Paz1 stop$451
Veracruz
Veracruz1 stop$423
Booking Insights

Price, demand and travel trends for Ontario to Mexico flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Are flights from Ontario to Mexico cheaper or more expensive than last year?

Fares from Ontario to Mexico are running about the same as they were around this time last year, averaging $382 round-trip.

What are the cheapest fares from Ontario to Mexico right now?

Here are the cheapest round-trip fares from Ontario to Mexico on KAYAK in the last week:

• Morelia (MLM) from $218
• Guadalajara Miguel Hidal (GDL) from $309
• Mexico City Benito Juarez (MEX) from $351
• Chihuahua Fierro Villalobos (CUU) from $354
• León Del Bajio (BJX) from $356

What’s the cheapest month to fly from Ontario to Mexico?

March is the cheapest time of year to fly, with average fares of $333. Prices are highest in December, when average flight costs increase to around $492.

When is the best time to book flights from Ontario to Mexico?

Book your flights 26 weeks before your trip. KAYAK data collected over the past 12 months shows that booking in this window can save you around 26% compared to booking last-minute (within 2 weeks of departure).

Which airport in Mexico is the cheapest to fly to from Ontario?

Based on KAYAK data from the past 12 months, the cheapest airports to fly into Mexico are:

• San José del Cabo Los Cabos (SJD) (avg. price $244)
• Monterrey Gen Mariano Escobedo (MTY) (avg. price $323)
• Morelia (MLM) (avg. price $329)

What’s the cheapest day to fly from Ontario to Mexico?

Sunday tends to be the cheapest day to fly from Ontario to Mexico, while Wednesday is the most expensive. Fares run about 12% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from Ontario to Mexico?

Data from the past 12 months shows it's cheapest to fly to Mexico during the afternoon with average prices of $271. The morning is the most expensive time to fly, with average prices of $619.

Key details for Ontario to Mexico flights

Low season

September

Cheapest flight

$76
Beat the crowds with an average 32% drop in travelers.
The most popular month to fly with an average 27% increase in travelers.
One-way flight from Ontario to León

Your Ontario to Mexico flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Ontario to Mexico?

    Yes. Fares from Ontario to Mexico are low right now. As a rule of thumb, a round-trip under $310 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from Ontario to Mexico?

    Over the past 12 months, round-trip fares from Ontario to Mexico have ranged from $310 to $543.

  • What are the main airports serving Mexico?

    Mexico has 62 airports. The three busiest are Guadalajara Miguel Hidal (GDL) (56% of arrivals), Cancun (CUN) (13%) and León Del Bajio (BJX) (7%).

  • What airlines fly nonstop from Ontario to Mexico?

    Based on the flight schedule for the next 3 months, just one airline regularly flies nonstop from Ontario to Mexico: Volaris.

  • Where in Mexico can I fly nonstop from Ontario?

    You can fly nonstop from Ontario to 3 destinations in Mexico. Some of the most popular among KAYAK travelers include Guadalajara, León and Morelia.

  • Is it cheaper to fly with a layover from Ontario to Mexico?

    Yes, nonstop flights from Ontario to Mexico average $378 over the past 12 months. Flights with a layover can cost less, cheapest when connecting through San José del Cabo Los Cabos (SJD), with average fares of $307.

  • How long is a flight from Ontario to Mexico?

    Nonstop flights take 3h 06m on average. The fastest scheduled flight takes 3h 04m, from Ontario (ONT) to Guadalajara Miguel Hidal (GDL).

  • How often are flights from Ontario to Mexico delayed and what's the average delay?

    12% of flights on this route are delayed by at least 15 minutes. The average delay is 1h 48m.

  • Which cabin classes are available on flights from Ontario to Mexico?

    On flights from Ontario to Mexico you can book Economy Class or First Class.

  • What are some popular landmarks in Mexico?

    KAYAK travelers' favorite landmarks in Mexico include:

    • El Ángel de la Independencia
    • Plaza de la Constitucion
    • Centro Cultural Tijuana
    • Mexico City Stadium

  • What are the earliest and latest flights from Ontario to Mexico?

    The earliest nonstop flight from Ontario to Mexico departs at 12:05 am and the latest departs at 11:47 pm. Nonstop flights take about 3h 06m.

Your guide to booking Ontario to Mexico flights

Get tips on when to book, when to fly and what to know before your trip.
  • If you can plan ahead, the sweet spot for booking your flight is 26 weeks before your trip. KAYAK data shows fares in this window are around 26% lower than last-minute bookings (made within 2 weeks of departure). Not ready to commit? Set a Price Alert and we'll let you know when prices change.
  • If your travel dates are flexible, book your trip for March when flights are typically cheapest and avoid December when prices are at their highest.
  • Flying on Sunday is usually the cheapest. Flights on Wednesday cost about 12% more on average, so being flexible with your travel dates could help you save.
  • If you're looking to save, San José del Cabo Los Cabos (SJD) is the cheapest airport to fly into from Ontario. If you have onward travel, don't forget to factor in the cost of your journey by train, bus or domestic flight.
  • Start your trip in Cancún, which is the most popular destination in Mexico. From there, it's easy to continue on to other popular destinations such as Playa del Carmen, Cabo San Lucas and Puerto Vallarta.
  • If you want the shortest trip, choose the Ontario to Mexico nonstop route. If you'd rather save money, the route via San José del Cabo Los Cabos (SJD) is usually the cheapest.

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 4216 reviews
7.5Entertainment
7.0Food
8.6Crew
8.1Boarding
8.0Comfort
Airline reviews

They delayed my flight all day but didn't try to reschedule me until all other options were gone. Ended up on a red eye. Not happy. Lesson learned, don't book the last flight from SJC to RDU.

2.0 MediocreAnonymous, Nov 2026
Read more Southwest reviews

They delayed my flight all day but didn't try to reschedule me until all other options were gone. Ended up on a red eye. Not happy. Lesson learned, don't book the last flight from SJC to RDU.

Friendly crew. Snacks were carb-heavy. Flight was quite delaye

the flight was significantly delayed. Not much was done by the airline to compensate passengers

Boarding now takes twice as long since going with assigned seats.

Not exactly Southwest’s problem, but the new Burbank airport is not great. No restaurants open and tons of work still to be completed. Can’t believe they opened the airport in that condition.

Flight boarded 2.5 hours late (my second southwest flight of the day with late departure), the gate agent was grumpy and unhelpful. Said she was "tired so we aren't going to follow normal boarding order". No complaints about the actual flight crew.

I liked how it boarded fast. I do not like how the seats are just too narrow, and I’m not a big person.

Despite paying for an ‘upgraded’ seat in row 1, I had to put my luggage in the middle of the plane. Snacks were bleh and seat was small and uncomfortable and I am not large. Attendants were fine but not super helpful. Plane just seemed outdated.

Flight was delayed, full flight and I had to change gates. Southwest flights are always late later in the day.

I liked receiving attention from aged and well experienced flight attendants. I disliked the non-gluten-free snack but I brought my own so I was OK.

Flight delay in lax which delayed our connecting flight to Copenhagen. Was placed on standby the following day and got delayed again at Scandinavian air. Bad bad counter service at ar Canada in Toronto by the name of Camilla who said that she was doing us a courtesy for even finding a earlier flight for us after we the customer are the ones being inconvenient by the cancellation of our flight. Btw, we are going on a tour. Air Canada is the worse

The air hostess was excellent. I have taken so many flight domestic and international, this is the first time the air hostess was so caring. She was a delight

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

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.

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.

Breakfast was not loaded at SFO due to catering company change. Seems like a major airline at a major hub would have thought of something else or warned passengers to pick up food before boarding a 3 hour flight.

Old and out of date plane, it seem like every time I fly with united there’s and issue. We were delayed,

We took off an hour late due to arrival airport not having enough gates. That was followed by 1:30 wait to get our bags delivered for the entire flight.

Checkin was painful and slow! Lady didn’t seem to know what was going on and couldn’t explain the delay. Seemed ahe couldnt see the computer scree and we couldn’t hear her talk through her mask.

Great crew, smooth flight. 30 minute delay on the tarmac with no status updates or information from captain. However, that was the only negative on the trip.

This flight left LAX on time and arrived early in HNL. The flight crew was excellent, no issues with service or attentiveness. My issue is with the A321neo ... First class should be renamed business class as the seats are not that comfortable. And, having to use my phone as the entertainment device is just not acceptable ... I'm not going to carry a tablet so I can watch a movie. The music choices are limited, at least IMO.

Totally uninformed of the situation. Not yet sure about compensation. Highly disappointed.

American was the airline that Starlux contracted for this trip. I arrived in time to make the connecting flight on American, and then the baggage-handler debacle happened. For some reason, the first class and premium economy passengers' luggage was unloaded first. Never seen this happen before. They had handlers removing the bags from the carousel for those passengers. Meanwhile, all of the economy passengers were waiting for their bags, including me. And there were a lot of bags because it was an international flight packed full. While waiting for 45 minutes, my bag didn't show. Meanwhile, an American representative showed up asking if anyone has a connecting flight to Phoenix. Of course I spoke up, and they proceeded to try to find my bag because I had to take a bus to the actual terminal to catch my flight. Which I was not informed of before I arrived. After another 15 minutes of searching, my bag was finally found with the first-class passengers' bags because they had pulled it by mistake. So I rushed to the terminal with the American representative to catch my flight, and they informed me that I missed it and could not get another flight until the next day. Of course, after being on an international flight for 18 hours, I was in no mood to hear this. Now, to be fair, there were a few American employees who tried to help me. After hearing about the missed flight, they got a supervisor to talk to. I expressed my situation to the supervisor, and she was not helpful until I asked for compensation. She agreed to get me a hotel room for the night. So I agreed, and she disappeared into her office, and I waited. And waited. And waited. And waited. While waiting, I was asked by three different employees who knew of my situation if I had been helped. I told them I was waiting for the supervisor to get the hotel room, and they said they would check. Finally, after waiting for 75 minutes, one of the employees who had asked me if I had been helped arrived with my hotel room and arranged a ride to the hotel for me. Never saw the supervisor again. It was now 8 o'clock; I arrived at 5:45! My rebooked fight was scheduled for 6:11 this morning and I have now been informed it has been delayed until 10:00. So am I happy with American? NO I'M NOT!! ;

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

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

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

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

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

VERY disappointed at the agent checking in my luggage. I know that the weight limit is 23 kg, a little over 50 pounds (50.71 pounds). Yet the agent kept repeating "50 pounds". So I said, the limit is 23 kg, and she had the audacity to say 'no, it is 22 kg!" Imagine my surprise. Was she ignorant or was she poorly trained? Not sure. The boarding process was pretty good. The speakers were loud enough so I still could hear them despite inconsiderate passengers continuing to speak while the announcements were going on. During the flight, the teenage girl sitting behind me kept pressing her feet to the back of my chair. I turned around several times, yet she did not get the hint. I did not make a fuss since I sense I had a bad streak that night with AA, so I just did the best I can to lean forward and not let that bother me.

It was wonderful upgrading to first. Plane was so cold thou. Crew was great. Wish there was a food option in first for such a long flight. Doesnt matter the time of day. Chintzy.

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

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

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.

The app doesn’t work. I am having a lot of trouble checking in for flight tomorrow. Very disconcerting. Then they es t to charge extra for checking in at the airport;(

To many extra fees, poor customer service and very uncomfortable flight. No leg room and seat wont recline.

I am disabled and was unable to get any assistance from Volaris. I had to wait in line at front desk for 45 minutes, I am by myself, and unable to stand. When I got to front desk check in, they had no assistance for me. I did however, have wheelchair assistance when I arrived in Mexico City. Thank God for that!

Our flight got overbooked and we missed one day of our trip.

Be prepared to pay extra for everything! I'm not sure I really saved any money?

Check in at LAX was terrible. Unbelievable lines. Chaos. The landing in Morelia was scary, with the plane fishtailing. If other airlines flew directly between California and Morelia, I would never fly Volaris again.

Airport staff was terrible, they made up excusses on how I can get to my terminal, I missed my flight then had to pay for A whole other flight! Worst experience ever, even A employee also loughed and said yea sorry for our poor training.

The takeoff was the smoothest I've ever experienced on any airline and this is the first time I've flown on frontier so this was an extremely pleasant surprise!

A lady asked to stop the flight after the tunnel pulled away and we began to depart a flight that was already hours late. The attendance respectfully stopped the the plane and had the tunnel return. After the tunnel returned the passenger claimed to have changed her mind . The tunnel was then put in reverse and the passenger remained on the plane .. They should have sent the sick passenger off the plane like initially replaced. They existed a couple off the plane prior to that situation.. So.. all and all.. it was a long and flight.. .

We understand and comply with Frontier’s bag sizes. We’ve had some problems in past while having to await other passengers who do not understand the baggage restrictions or have not prepaid and that is usually our biggest concern (others delaying us) with flying Frontier. Flying OUT of ONT, however, has always been a great experience. I’ve also noted even on delayed Frontier flights very knowledgeable pilots who manage expectations well.

Long lines, rude staff, everything that's offered you have to pay for.

The last time I flew Frontier was in the 1960s when it was a “real” airline. We flew this time because of the price & schedule. As the saying goes, you get what you pay for.

I appreciated the upgrade to free cary-on bag and seat selection at no charge

Flight was delayed on the runway for 40 minutes the crew did not even offer even water to passengers to compensate for the flight delayed. The flight was delayed due to aircraft mechanical issues. Worst customer service ever

This isna terribly run airlines. If you're one minute late, they will deny your ticket. Don't waste your time or money

Flight was delayed for more than 3 hours, crew at ONT airport was rude, and when we got to DFW the airplane had an issue landing, we had to be taxied to the terminal, and the luggage was hold until the next day.

More options for your flight from Ontario to Mexico

Complete your trip to Mexico with a hotel stay or car rental