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$197+ 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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
MEX — ONT
dic. 26 — ene. 21
vie. 12/26
vie. 1/2
1 adult, Economy
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Cheap 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 noviembre 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$297
(Frontier)

One-way from

$197
(Trip.com)

Popular in

December

Cheapest in

January

Average price

$419
Provider with most accurate pricing for Mexico City Benito Juarez-Ontario flight deals.
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Provider most trusted by Cheapflights users for Mexico City Benito Juarez-Ontario flights.
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From Mexico City Benito Juarez to Ontario
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One-way flight from Mexico City Benito Juarez to Ontario
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Highest demand for flights based on searches. 3% potential increase in price ($13 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find 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 noviembre 26, 2025.

This eDestinos deal was found by Cheapflights users on 11/24. 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.
lun. 12/1512:05 pmMEX - ONT
1 stop10h 06mVolaris
sáb. 1/1711:02 pmONT - MEX
1 stop8h 23mVolaris
Deal found 11/24$383
This Frontier deal was found by Cheapflights users on 11/24. 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.
jue. 12/257:00 amMEX - ONT
1 stop10h 21mFrontier
lun. 1/126:00 amONT - MEX
2 stops20h 20mFrontier
Deal found 11/24$385
This Frontier deal was found by Cheapflights users on 11/25. 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.
lun. 12/1511:55 amMEX - ONT
1 stop11h 22mFrontier
mar. 1/137:15 amONT - MEX
2 stops13h 15mFrontier
Deal found 11/25$395
This Frontier deal was found by Cheapflights users on 11/24. 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.
lun. 12/1511:55 amMEX - ONT
1 stop11h 22mFrontier
lun. 1/126:00 amONT - MEX
2 stops20h 20mFrontier
Deal found 11/24$398
This Trip.com deal was found by Cheapflights users on 11/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/102:10 pmMEX - ONT
1 stop6h 34mVolaris
vie. 1/211:02 pmONT - MEX
1 stop6h 43mVolaris
Deal found 11/24$405
This Frontier deal was found by Cheapflights users on 11/26. 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.
sáb. 12/611:55 amMEX - ONT
1 stop11h 22mFrontier
vie. 1/306:20 amONT - MEX
1 stop8h 45mFrontier
Deal found 11/26$408
This Frontier deal was found by Cheapflights users on 11/25. 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.
sáb. 12/1312:40 amMEX - ONT
2 stops16h 42mFrontier
mié. 1/147:15 amONT - MEX
2 stops13h 15mFrontier
Deal found 11/25$418

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 noviembre 26, 2025.
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

dom. 3/1

11:55 am-9:17 pm

1 stop11h 22m

Ontario

jue. 3/5

6:00 am-5:05 pm

1 stop9h 05m

$333

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

lun. 1/19

11:55 am-5:44 pm

1 stop7h 49m

Ontario

jue. 1/22

6:20 am-10:00 pm

2 stops13h 40m

$345

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

jue. 2/26

11:55 am-9:17 pm

1 stop11h 22m

Ontario

vie. 2/27

6:30 am-10:30 pm

2 stops14h 00m

$351

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

mar. 3/10

11:55 am-9:17 pm

1 stop10h 22m

Ontario

mar. 3/24

6:00 am-5:05 pm

1 stop10h 05m

$364

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

sáb. 1/10

11:55 am-7:36 am

1 stop21h 41m

Ontario

mié. 1/14

6:49 pm-8:05 pm

1 stop23h 16m

$401

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

sáb. 1/10

11:55 am-7:36 am

1 stop21h 41m

Ontario

sáb. 1/17

7:15 am-7:00 pm

2 stops33h 45m

$405

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

mar. 3/24

7:00 am-9:17 pm

2 stops15h 17m

Ontario

lun. 4/13

6:00 am-9:45 pm

2 stops14h 45m

$425

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

jue. 1/15

4:45 pm-10:52 pm

1 stop8h 07m

Ontario

mar. 1/27

11:02 pm-7:45 am

1 stop6h 43m

$490

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

jue. 3/26

11:55 am-9:17 pm

1 stop10h 22m

Ontario

sáb. 3/28

6:15 am-10:30 pm

2 stops15h 15m

$496

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

mar. 12/23

5:45 am-9:07 pm

2 stops17h 22m

Ontario

jue. 1/1

6:39 pm-5:05 am

1 stop8h 26m

$500

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/24

Showing 1-10 of 24 results
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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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Mexico City-Ontario flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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, August is the cheapest month in which you can book a flight from Mexico City to Ontario (average of $132). Flying from Mexico City to Ontario in June 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 noviembre 26, 2025.
See what other customers who have flown with American Airlines and 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.
American Airlines
7.2
Good
11,038 reviews

Crew

8.0

Entertainment

6.9

Food

6.4

Boarding

7.5

Comfort

7.2

Overall

7.2

Reviews

1 / 20
4.0
Okay

Daniel,Apr 2024

MEX - JFK

Poor business class with no food or screens. Only water coffee and orange juice to drink
American Airlines
7.2
Good
11,038 reviews
American Airlines
7.2
Good
11,038 reviews

Crew

8.0

Entertainment

6.9

Food

6.4

Boarding

7.5

Comfort

7.2

Overall

7.2

Reviews

1 / 20
4.0
Okay

Daniel,Apr 2024

MEX - JFK

Poor business class with no food or screens. Only water coffee and orange juice to drink
Volaris
6.7
Okay
1,153 reviews
American Airlines
7.2
Good
11,038 reviews

Crew

8.0

Entertainment

6.9

Food

6.4

Boarding

7.5

Comfort

7.2

Overall

7.2

Reviews

1 / 20
4.0
Okay

Daniel,Apr 2024

MEX - JFK

Poor business class with no food or screens. Only water coffee and orange juice to drink

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?

    Frontier can get you from Mexico City to Ontario in just under 11h 22m. Your travel time can differ by up to . Airlines will cover a distance of 1520 mi.

  • What are the cheapest airlines flying from Mexico City to Ontario round-trip?

    Volaris, at $278, was found to be the cheapest airline from Mexico City to Ontario. An alternate airline flying to your destination would be American Airlines. Volaris is priced at 32% 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, August is the cheapest month in which you can book a flight from Mexico City to Ontario (average of $132). Flying from Mexico City to Ontario in June 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

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Alternative routes for Mexico City to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Mexico City to Ontario

Discover the top 2 airlines 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 noviembre 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
VolarisCheapest$278Average$360FlexibilityNo cancel feeOn-time79%
American AirlinesCheapest$527Average$695FlexibilityNo cancel feeOn-time71%

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