$169 Find Cheap Flights from Mexico to Ontario - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Mexico to Ontario

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Mexico to Ontario

Tue, Oct 20 - Tue, Nov 3
Volaris Logo
8:43 am - 11:00 amBJX  León Del Bajio-ONT Ontario
3h 17mnonstop
Volaris Logo
12:41 am - 5:51 amONT  Ontario-BJX León Del Bajio
3h 10mnonstop
$271Volaris
Tue, Oct 6 - Tue, Oct 13
Volaris Logo
10:25 am - 12:50 pmMLM  Morelia-ONT Ontario
3h 25mnonstop
Volaris Logo
2:30 pm - 6:45 pmONT  Ontario-MLM Morelia
3h 15mnonstop
$276Volaris
Tue, Sep 15 - Tue, Sep 22
Frontier Logo
7:00 am - 4:46 pmMEX  Mexico City Benito Juarez-ONT Ontario
10h 46m1 stop Dallas/Fort Worth
Frontier Logo
6:15 am - 5:30 pmONT  Ontario-MEX Mexico City Benito Juarez
10h 15m1 stop Denver Intl
$313Frontier
Wed, Nov 11 - Wed, Nov 18
Frontier Logo
7:00 am - 4:38 pmMEX  Mexico City Benito Juarez-ONT Ontario
11h 38m1 stop Dallas/Fort Worth
Frontier Logo
6:25 am - 5:00 pmONT  Ontario-MEX Mexico City Benito Juarez
8h 35m1 stop Denver Intl
$313Frontier
Wed, Sep 30 - Sat, Oct 3
Frontier Logo
7:00 am - 6:16 pmMEX  Mexico City Benito Juarez-ONT Ontario
12h 16m1 stop Dallas/Fort Worth
Frontier Logo
6:15 am - 5:30 pmONT  Ontario-MEX Mexico City Benito Juarez
10h 15m1 stop Denver Intl
$313Frontier
Tue, Oct 20 - Tue, Nov 3
Volaris Logo
8:43 am - 11:00 amBJX  León Del Bajio-ONT Ontario
3h 17mnonstop
Volaris Logo
12:41 am - 5:51 amONT  Ontario-BJX León Del Bajio
3h 10mnonstop
$332Volaris
Tue, Oct 13 - Tue, Oct 20
Volaris Logo
10:00 am - 7:46 pmMEX  Mexico City Benito Juarez-ONT Ontario
10h 46m1 stop Guadalajara Miguel Hidal
Volaris Logo
9:36 pm - 7:25 amONT  Ontario-MEX Mexico City Benito Juarez
8h 49m1 stop Guadalajara Miguel Hidal
$359Volaris
Fri, Sep 25 - Mon, Sep 28
Multiple Airlines Logo
10:37 am - 9:09 amGDL  Guadalajara Miguel Hidal-ONT Ontario
23h 32m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
9:36 pm - 1:39 amONT  Ontario-GDL Guadalajara Miguel Hidal
3h 03mnonstop
$372Multiple Airlines
Tue, Oct 6 - Mon, Oct 12
Multiple Airlines Logo
8:46 am - 4:59 pmGDL  Guadalajara Miguel Hidal-ONT Ontario
9h 13m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
12:55 am - 4:58 amONT  Ontario-GDL Guadalajara Miguel Hidal
3h 03mnonstop
$374Multiple Airlines
Wed, Sep 23 - Wed, Sep 30
Multiple Airlines Logo
7:58 am - 11:47 pmGDL  Guadalajara Miguel Hidal-ONT Ontario
16h 49m1 stop Denver Intl
Multiple Airlines Logo
9:36 pm - 1:39 amONT  Ontario-GDL Guadalajara Miguel Hidal
3h 03mnonstop
$378Multiple 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?

In the last 5 days, the cheapest flight deal to Ontario was found on the route from León, at $271 return. The most popular connection is from Guadalajara to Ontario and KAYAK users have found round-trip deals for as low as $319 in the last 5 days.

How much is a flight to Ontario?

A flight to Ontario costs $316 on average. The cheapest price found on KAYAK in the last 2 weeks cost $167 and departed from León. The most popular routes on KAYAK are San José del Cabo to Ontario which costs $182 on average, and Guadalajara to Ontario, which costs $367 on average.

What is the cheapest day to fly to Ontario?

Based on KAYAK data, the cheapest day to fly to Ontario is Wednesday where round-trip tickets can be as cheap as $287. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $399 on average.

What is the cheapest month to fly to Ontario?

The cheapest month for flights to Ontario is February, where tickets cost $309 on average for return flights. On the other hand, the most expensive months are December and July, where the average cost of tickets from Mexico is $407 and $400 respectively. For one-way flights, the best month to travel is March with an average price of $199.

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 $341 round-trip.

Good to know

Low season

February

Cheapest flight

$169
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 12% increase in price.
Flight from León to Ontario

FAQs - booking Ontario flights

  • What is the cheapest flight to Ontario?

    In the last 5 days, the cheapest flight deal to Ontario was found on the route from León, at $271 return. The most popular connection is from Guadalajara to Ontario and KAYAK users have found round-trip deals for as low as $319 in the last 5 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 $316. The cheapest price found on KAYAK in the last 2 weeks cost $167 and departed from León Del Bajio 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 Guadalajara $279
  • 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

 
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 1143 reviews
4.9Entertainment
6.6Boarding
5.3Food
6.3Comfort
7.3Crew
Airline reviews

Hate it. They do not provide any food or drinks during the flight, unless you pay. They also charge a ton of money to bring a carry on bag. And their customer service is the worst. I will never fly with them again.

2.0 MediocreRoberto, Jul 2026
Read more Volaris reviews

Hate it. They do not provide any food or drinks during the flight, unless you pay. They also charge a ton of money to bring a carry on bag. And their customer service is the worst. I will never fly with them again.

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

Better communication about delayed flight. I am thankful for a small credit for late flight.

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.

The flight was delayed an hour and a half, and they would not update the board on when the flight was supposed to take off. Once the plane arrived, they started the boarding process before the plane was even ready for the passengers so we had to wait another 45 minutes on the tarmac while we waited for the plane to be ready for us. In my opinion, there is no point in starting the boarding process when you are not ready to board the plane. This just causes a crowded gate with everyone from zone one and zone two standing up going nowhere.

My experience was good. But it seems that every time I go on Volaris the plane is always full, not sure if because the price is cheaper. And the flight attendants kept hitting my shoulder every time they walked by the aisle with their food cart. I’m 6’4” so I barely fit in the seat next to the aisle. Plus the seat was defective. I had a hard time raising the lever where I rest my left arm. I tried calling the flight attendant 3 times if she could assist me but she was too busy talking in the back with her fellow flight attendants. Finally after 20 mins she looked my way and she too struggled to fix the problem but she finally raised it so I could get out of my seat.

I never got an email for checking in for my flight back to Los Angeles so I got to airport extra early to sort it. they changed the gate, and so I had to run to the other end of the airport. Their app is wonky. They are not on WhatsApp and I didn’t have cell service to call for help. I think they need to up their game with communicating.

Inept company. Won't fly again with them if I can help it. Plane was the wrong size and they couldn't board 20 people.

When you make the 3 Lines to board de airplane , I believe that you should make only one line first and then call the next and then last ,,, because the number 3 wait to long just standing there ,, my opinion !!!

Flight got canceled, made me lose my connection flight to Japan. Someone has to pay for it. It might be you guys

Tiny seats, no entertainment, no amenities, delays, they charge for carry on and their allowed personal item is smaller than in other airlines.

I really didn't like anything. Paid for my checked luggage online ($79) and then was told that I would have to paid another $79 for my carry on. Was not allowed to enter the terminal until 3 hours before my flight and when I finally was allowed to check my bag and enter, my flight was delayed 3 times. When I finally landed, we were all instructed to "run off the plane" as they had to do a quick turn around to Las Vegas. Me and several of my flying companions will never fly Frontier again.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

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

i was unable to check in the flight. refund requested

The crew was mostly okay. The flight attendant who answered our questions was curt and unhelpful unfortunately. He seemed upset and I understand having off days.

Flight was cancelled and was not able to get another flight thru Frontier. Per frontier a refund was issued but I do not see a refund on my Afirm account.

The agent at check-in was strident, unwelcoming, and condescending to customers ahead of me.

Was charged 99 dollars for a bag despite agents previously telling me it would be ok. Customer service was unhelpful

I will like you ( Frontier Airlines) to fly into LAX instead of ONT because I live in LA and the subway takes me to my house in just 15 minutes

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario