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$182+ Cheap flights from Mexico City (MEX) to Ontario (ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
MEX — ONT
Mar 22 — Mar 291
Sun 3/22
Sun 3/29
1 adult, Economy
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Cheap flight deals from Mexico City to Ontario

Cheapest flights from Mexico City to Ontario
Explore the most affordable flight options available from Mexico City to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2026.

This FlightHub deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/1312:05 pm
MEX
-
ONT
1 stop9h 06m
Volaris
Tue 3/2412:27 am
ONT
-
MEX
1 stop7h 58m
Volaris
Deal found 2/20$299
This eDestinos deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/44:45 pm
MEX
-
ONT
1 stop8h 07m
Volaris
Sun 3/811:02 pm
ONT
-
MEX
1 stop7h 43m
Volaris
Deal found 2/20$303
This Cheapflightsfares deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/134:45 pm
MEX
-
ONT
1 stop7h 07m
Volaris
Thu 3/1911:02 pm
ONT
-
MEX
1 stop9h 23m
Volaris
Deal found 2/16$305
This Cheapflightsfares deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/2012:05 pm
MEX
-
ONT
1 stop11h 47m
Volaris
Tue 3/319:13 pm
ONT
-
MEX
1 stop11h 32m
Volaris
Deal found 2/17$306
This FlightHub deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/144:45 pm
MEX
-
ONT
1 stop6h 52m
Volaris
Tue 3/2412:27 am
ONT
-
MEX
1 stop7h 58m
Volaris
Deal found 2/20$308
This Mytrip deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/194:45 pm
MEX
-
ONT
1 stop6h 52m
Volaris
Tue 3/2412:27 am
ONT
-
MEX
1 stop7h 58m
Volaris
Deal found 2/20$309
This Flightnetwork deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:10 am
MEX
-
ONT
1 stop12h 13m
Volaris
Fri 9/1812:55 am
ONT
-
MEX
1 stop11h 30m
Volaris
Deal found 2/19$310
This Frontier deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/711:55 am
MEX
-
ONT
1 stop8h 20m
Frontier
Tue 3/106:15 am
ONT
-
MEX
1 stop9h 50m
Frontier
Deal found 2/17$311
This Flightnetwork deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2212:00 pm
MEX
-
ONT
1 stop12h 05m
Volaris
Mon 8/3112:55 am
ONT
-
MEX
1 stop11h 30m
Volaris
Deal found 2/20$313
This FlightHub deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/1412:05 pm
MEX
-
ONT
1 stop11h 32m
Volaris
Wed 3/1811:02 pm
ONT
-
MEX
1 stop9h 23m
Volaris
Deal found 2/17$314
This FlightHub deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2410:00 am
MEX
-
ONT
1 stop10h 23m
Volaris
Sat 9/2612:55 am
ONT
-
MEX
1 stop7h 50m
Volaris
Deal found 2/17$315
This Gotogate deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/134:45 pm
MEX
-
ONT
1 stop7h 07m
Volaris
Mon 3/1611:02 pm
ONT
-
MEX
1 stop7h 43m
Volaris
Deal found 2/20$316

Find flight deals from Mexico City to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Mexico City (MEX) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$303
(eDestinos)

One-way from

$182
(FlightHub)

Popular in

December

Cheapest in

January

Average price

$317
Provider with most accurate pricing for Mexico City Benito Juarez-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Mexico City Benito Juarez-Ontario flights.
Search Deals
From Mexico City Benito Juarez to Ontario
Search Deals
One-way flight from Mexico City Benito Juarez to Ontario
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($13 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Mexico City to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2026.
Use the filters below to find and compare flights from Mexico City to Ontario that are best for you.

Fly from

Mexico City

Fly to

Ontario

Route

Depart

Return

Price

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

Sat 3/14

12:05 pm-10:37 pm

1 stop11h 32m

Ontario

Wed 3/18

11:02 pm-9:25 am

1 stop9h 23m

$314

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

Thu 3/5

4:45 pm-10:52 pm

1 stop8h 07m

Ontario

Sun 3/8

12:27 am-9:25 am

1 stop7h 58m

$327

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

Sat 4/25

12:00 pm-11:05 pm

1 stop12h 05m

Ontario

Sat 6/6

9:13 pm-7:25 am

1 stop9h 12m

$334

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

Wed 3/25

4:45 pm-10:52 pm

1 stop7h 07m

Ontario

Mon 5/4

12:55 am-1:25 pm

1 stop11h 30m

$337

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

Sun 3/8

12:05 pm-8:11 pm

1 stop9h 06m

Ontario

Mon 3/23

11:02 pm-7:45 am

1 stop7h 43m

$340

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

Fri 3/20

4:45 pm-10:52 pm

1 stop7h 07m

Ontario

Sun 3/22

12:42 am-7:45 am

1 stop6h 03m

$351

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

Sat 3/21

4:45 pm-10:37 pm

1 stop6h 52m

Ontario

Sun 3/22

11:02 pm-7:45 am

1 stop7h 43m

$370

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

Mon 3/2

11:55 am-5:48 pm

1 stop7h 53m

Ontario

Wed 3/4

7:17 pm-9:10 pm

1 stop23h 53m

$380

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

Tue 3/24

11:55 am-1:28 pm

1 stop26h 33m

Ontario

Mon 3/30

9:49 pm-8:05 pm

1 stop21h 16m

$387

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

Thu 3/5

12:05 pm-8:11 pm

1 stop10h 06m

Ontario

Sun 3/8

11:02 pm-7:45 am

1 stop7h 43m

$387

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/17

Showing 1-10 of 22 results
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2
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Compare providers for flights from Mexico City to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Mexico City to Ontario in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Mexico City-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Mexico City-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Mexico City-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Mexico City-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Mexico City-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Mexico City to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Mexico City with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Mexico City to Ontario

What is the cheapest month to book a flight from Mexico City to Ontario?

Currently, January is the cheapest month in which you can book a flight from Mexico City to Ontario (average of $96). Flying from Mexico City to Ontario in July is currently the most expensive (average of $231). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated February 20, 2026.
See what other customers who have flown with Volaris from Mexico City to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Volaris
6.6
Okay
1,173 reviews

Boarding

6.5

Food

5.3

Overall

6.6

Comfort

6.3

Entertainment

4.9

Crew

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

OAX - LAX

It would be nice to have more room. The people next to me were tall and were literally crushed. Not fat people tall. It was absolutely disheartening to watch them struggle with the pain. I felt personally like I was in a straight jacket and confined and I am (thankfully) a very petite woman. The food choices that are supposed to be for sale weren't actually available. On both legs!!! So so sorry uncomfortable. Not the flights fault, but also there was a 2 year old little girl who screamed. Not cried. Screamed the entire flight as her parents tried unsuccessfully to console her.
Volaris
6.6
Okay
1,173 reviews
Volaris
6.6
Okay
1,173 reviews

Boarding

6.5

Food

5.3

Overall

6.6

Comfort

6.3

Entertainment

4.9

Crew

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

OAX - LAX

It would be nice to have more room. The people next to me were tall and were literally crushed. Not fat people tall. It was absolutely disheartening to watch them struggle with the pain. I felt personally like I was in a straight jacket and confined and I am (thankfully) a very petite woman. The food choices that are supposed to be for sale weren't actually available. On both legs!!! So so sorry uncomfortable. Not the flights fault, but also there was a 2 year old little girl who screamed. Not cried. Screamed the entire flight as her parents tried unsuccessfully to console her.

Related info for your journey

Find useful and relevant information for your journey from Mexico City to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Mexico City to Ontario?

    Volaris can get you from Mexico City to Ontario in just under 11h 32m. Your travel time can differ by up to . Airlines will cover a distance of 1520 mi.

  • What is the cheapest airline to fly from Mexico City to Ontario round-trip?

    Volaris, at $250, was found to be the cheapest airline from Mexico City to Ontario.. Volaris is priced at 34% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Mexico City to Ontario that include hotel bookings?

    Yes. In addition to deals on Mexico City to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Mexico City to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Mexico City to Ontario.

  • Can I find deals for business class flights from Mexico City to Ontario?

    Yes. Cheapflights offers flight deals from Mexico City to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Mexico City to Ontario?

    Currently, January is the cheapest month in which you can book a flight from Mexico City to Ontario (average of $96). Flying from Mexico City to Ontario in July is currently the most expensive (average of $231). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Mexico City to Ontario

Discover the top airline that operate flights from Mexico City to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
VolarisCheapest$250Average$360FlexibilityNo cancel feeOn-time79%

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