$125 Find Cheap Flights from Mexico to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Ontario departing on 4/16. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Ontario, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Mexico to Ontario

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

Wed, Mar 11 - Sat, Mar 14
Volaris Logo
4:06 pm - 6:44 pm
SJD
-
ONT
2h 38mnonstop
Volaris Logo
12:50 pm - 3:12 pm
ONT
-
SJD
2h 22mnonstop
$178Volaris
Fri, Mar 20 - Mon, Mar 23
Volaris Logo
4:06 pm - 6:44 pm
SJD
-
ONT
2h 38mnonstop
Volaris Logo
12:50 pm - 3:12 pm
ONT
-
SJD
2h 22mnonstop
$184Volaris
Wed, Mar 11 - Sat, Mar 14
Volaris Logo
4:06 pm - 6:44 pm
SJD
-
ONT
2h 38mnonstop
Volaris Logo
12:50 pm - 3:12 pm
ONT
-
SJD
2h 22mnonstop
$186Volaris
Tue, Apr 14 - Tue, Apr 21
Volaris Logo
8:43 am - 11:00 am
BJX
-
ONT
3h 17mnonstop
Volaris Logo
12:40 pm - 4:41 pm
ONT
-
BJX
3h 01mnonstop
$191Volaris
Wed, Mar 18 - Wed, Apr 29
United Airlines Logo
5:05 am - 10:57 pm
BJX
-
ONT
18h 52m
2 stops
United Airlines Logo
5:10 am - 10:51 am
ONT
-
BJX
28h 41m
2 stops
$241United Airlines
Wed, May 6 - Tue, May 12
United Airlines Logo
5:00 am - 9:58 pm
BJX
-
ONT
17h 58m
1 stop
United Airlines Logo
5:00 am - 7:31 pm
ONT
-
BJX
13h 31m
2 stops
$242United Airlines
Thu, May 14 - Tue, May 19
Frontier Logo
3:54 pm - 11:55 pm
CUN
-
ONT
10h 01m
1 stop
Frontier Logo
12:59 am - 2:39 pm
ONT
-
CUN
11h 40m
1 stop
$301Frontier
Wed, Mar 11 - Wed, Mar 25
Frontier Logo
9:53 am - 11:59 pm
CUN
-
ONT
16h 06m
1 stop
Frontier Logo
6:15 am - 11:16 am
ONT
-
CUN
27h 01m
1 stop
$331Frontier
Thu, Apr 2 - Wed, Apr 8
American Airlines Logo
2:55 pm - 7:09 pm
PVR
-
ONT
5h 14m
1 stop
American Airlines Logo
6:15 am - 2:10 pm
ONT
-
PVR
6h 55m
1 stop
$347American Airlines
Sat, Apr 18 - Sat, Apr 25
Multiple Airlines Logo
7:00 am - 11:05 pm
AGU
-
ONT
17h 05m
2 stops
Multiple Airlines Logo
12:40 pm - 6:12 am
ONT
-
AGU
16h 32m
2 stops
$565Multiple Airlines
Booking Insights

KAYAK's insights & trends for flights to Ontario

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

What is the cheapest flight to Ontario?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the lowest price for a flight to Ontario was $125 for a one-way ticket from León and $178 for a round-trip. The most popular route searched for by our users was for flights from San José del Cabo to Ontario and the best round-trip deal found in the last 3 days was $178.

How much is a flight to Ontario?

The average and cheapest price for all round-trip flights to Ontario from each origin found by users searching on KAYAK in the last month.

On average, a flight to Ontario costs $228. The cheapest price found on KAYAK in the last 2 weeks cost $127 and departed from León. The most popular routes on KAYAK are San José del Cabo to Ontario which costs $186 on average, and Guadalajara to Ontario, which costs $353 on average.

See prices from:

What is a good deal for flights to Ontario?

If you’re looking for cheap airfare to Ontario, 25% of our users found tickets to Ontario for the following prices or less: From San José del Cabo $141 one-way - $182 round-trip, from Guadalajara $200 one-way - $317 round-trip.

Good to know

Low seasonJanuary
Cheapest flight$125
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from León to Ontario

FAQs - booking Ontario flights

  • What is the cheapest flight to Ontario?

    In the last 3 days, the lowest price for a flight to Ontario was $125 for a one-way ticket from León and $178 for a round-trip. The most popular route searched for by our users was for flights from San José del Cabo to Ontario and the best round-trip deal found in the last 3 days was $178.

  • How far is Ontario Airport from central Ontario?

    The city center of Ontario is 3 miles from Ontario Airport.

  • What is the name of Ontario’s airport?

    Ontario is served by Ontario Airport, also commonly referred to as Ontario or Ontario Intl. The airport code is ONT.

  • How much is a flight to Ontario?

    On average, a flight to Ontario costs $228. The cheapest price found on KAYAK in the last 2 weeks cost $127 and departed from León Del Bajio Airport.

  • What is the cheapest day to fly to Ontario?

    Based on KAYAK data, the cheapest day to fly to Ontario is Sunday where tickets can be as cheap as $210. On the other hand, the most expensive day to fly is Saturday, where prices are $308 on average.

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

    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 to Ontario.

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

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

    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 Ontario 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 to Ontario?

    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 Ontario 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 Ontario

  • Looking for cheap airfare to Ontario? 25% of our users found round-trip tickets to Ontario for the following prices or less: From León $132, from San José del Cabo $161, from Guadalajara $258
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Ontario flight deals.

Reviews of the top airlines flying from Mexico to Ontario

 
See real verified KAYAK customer reviews for airlines flying to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Mexico to Ontario. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Ontario? 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.
6.6
VolarisOverall score based on 1172 reviews
6.5Boarding
5.3Food
6.3Comfort
4.9Entertainment
7.3Crew
Airline reviews

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

8.0 ExcellentAnonymous, Jan 2026
OAK - BJX
Read more Volaris reviews

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

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.

Frontier line changes my flight schedule with out my authorization. They never ask me and with out my concern they cut off 4 hours of my vacation they force my to leave 4 hours early from Puerto Rico.

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 costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario