$73 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 3/28. 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

Thu, Apr 2 - Thu, Apr 23
Volaris Logo
8:43 am - 11:00 am
BJX
-
ONT
3h 17mnonstop
Volaris Logo
12:40 pm - 4:47 pm
ONT
-
BJX
3h 07mnonstop
$189Volaris
Thu, May 14 - Tue, May 19
Volaris Logo
8:43 am - 11:00 am
BJX
-
ONT
3h 17mnonstop
Volaris Logo
12:40 pm - 4:47 pm
ONT
-
BJX
3h 07mnonstop
$198Volaris
Mon, Apr 6 - Sat, Apr 11
Volaris Logo
4:02 pm - 6:27 pm
SJD
-
ONT
2h 25mnonstop
Volaris Logo
12:40 pm - 3:06 pm
ONT
-
SJD
2h 26mnonstop
$236Volaris
Fri, Apr 24 - Mon, Apr 27
United Airlines Logo
2:50 pm - 12:38 pm
SJD
-
ONT
21h 48m
1 stop
United Airlines Logo
5:10 am - 12:05 pm
ONT
-
SJD
6h 55m
1 stop
$248United Airlines
Wed, Apr 1 - Tue, Apr 7
United Airlines Logo
2:50 pm - 12:20 pm
BJX
-
ONT
22h 30m
2 stops
United Airlines Logo
5:10 am - 10:51 am
ONT
-
BJX
28h 41m
2 stops
$257United Airlines
Thu, May 28 - Sun, May 31
Delta Logo
3:48 pm - 11:34 pm
GDL
-
ONT
8h 46m
1 stop
Delta Logo
6:00 am - 1:23 pm
ONT
-
GDL
6h 23m
1 stop
$278Delta
Thu, Apr 16 - Thu, May 7
Aeromexico Logo
3:50 pm - 11:44 pm
GDL
-
ONT
8h 54m
1 stop
Aeromexico Logo
6:00 am - 1:20 pm
ONT
-
GDL
6h 20m
1 stop
$279Aeromexico
Sat, May 9 - Sun, May 17
Delta Logo
3:50 pm - 10:45 pm
GDL
-
ONT
7h 55m
1 stop
Delta Logo
6:00 am - 1:20 pm
ONT
-
GDL
6h 20m
1 stop
$281Delta
Fri, May 15 - Sun, May 17
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
$297Frontier
Tue, Mar 24 - Mon, Mar 30
Frontier Logo
3:54 pm - 11:59 pm
CUN
-
ONT
10h 05m
1 stop
Frontier Logo
9:49 pm - 2:44 pm
ONT
-
CUN
14h 55m
2 stops
$324Frontier
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 cheapest flight deal to Ontario was found on the route from San José del Cabo, at $189 return. The most popular connection is from Seattle to Ontario and KAYAK users have found round-trip deals for as low as $156 in the last 3 days.

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.

A flight to Ontario costs $227 on average. The cheapest price found on KAYAK in the last 2 weeks cost $128 and departed from Morelia. 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 the cheapest day to fly to Ontario?

The average price of all round-trip flights to Ontario clicked on KAYAK for each day over the last 12 months.

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

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 $175 round-trip, from Guadalajara $317 round-trip.

Good to know

Low seasonFebruary
Cheapest flight$73
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from San José del Cabo to Ontario

FAQs - booking Ontario flights

  • What is the cheapest flight to Ontario?

    In the last 3 days, the cheapest flight deal to Ontario was found on the route from San José del Cabo, at $189 return. The most popular connection is from Seattle to Ontario and KAYAK users have found round-trip deals for as low as $156 in the last 3 days.

  • 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 $227. The cheapest price found on KAYAK in the last 2 weeks cost $128 and departed from Morelia Airport.

  • 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 $156, 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 1171 reviews
4.9Entertainment
5.3Food
6.5Boarding
6.3Comfort
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

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

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

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.

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario