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$167+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
MEX — ONT
Mar 8 — Mar 151
Sat 3/8
Sat 3/15
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 March 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$313
(Frontier)

One-way from

$167
(OneTravel)

Popular in

October

Cheapest in

January

Average price

$541
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. 8% potential increase in price ($47 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 3, 2025.

This Frontier deal was found by Cheapflights users on 3/1. 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 3/2912:10 pmMEX - ONT
1 stop9h 59mFrontier
Tue 4/812:27 pmONT - MEX
1 stop9h 28mFrontier
Deal found 3/1$313
This Gotogate deal was found by Cheapflights users on 3/2. 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 4/1112:00 pmMEX - ONT
1 stop12h 13mVolaris
Thu 4/249:23 pmONT - MEX
1 stop11h 17mVolaris
Deal found 3/2$326
This Kiwi.com deal was found by Cheapflights users on 3/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/276:20 amMEX - ONT
1 stop8h 23mMultiple Airlines
Sun 3/303:22 pmONT - MEX
1 stop29h 38mMultiple Airlines
Deal found 3/1$337
This United Airlines deal was found by Cheapflights users on 3/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1012:50 pmMEX - ONT
1 stop8h 20mUnited Airlines
Mon 3/176:00 amONT - MEX
1 stop11h 35mUnited Airlines
Deal found 3/2$440
This Delta deal was found by Cheapflights users on 3/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/309:05 amMEX - ONT
2 stops15h 37mDelta
Wed 6/259:55 amONT - MEX
2 stops10h 10mDelta
Deal found 3/1$484
This American Airlines deal was found by Cheapflights users on 3/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/213:15 pmMEX - ONT
1 stop8h 12mAmerican Airlines
Tue 3/254:30 pmONT - MEX
1 stop5h 40mAmerican Airlines
Deal found 3/3$534

Find flights from Mexico City to Ontario within your budget

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 March 3, 2025.

Fly from

Mexico City

Fly to

Ontario

Route

Depart

Return

Price

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

Sat 3/29

12:10 pm-9:09 pm

1 stop9h 59m

Ontario

Tue 4/8

12:27 pm-10:55 pm

1 stop9h 28m

$313

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

Fri 4/11

12:00 pm-11:13 pm

1 stop12h 13m

Ontario

Thu 4/24

9:23 pm-9:40 am

1 stop11h 17m

$326

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

Thu 3/27

6:20 am-1:43 pm

1 stop8h 23m

Ontario

Sun 3/30

3:22 pm-10:00 pm

1 stop29h 38m

$337

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

Mon 3/17

2:15 pm-9:59 pm

1 stop8h 44m

Ontario

Thu 3/20

10:38 am-6:35 pm

1 stop6h 57m

$440

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

Fri 5/30

9:05 am-11:42 pm

2 stops15h 37m

Ontario

Wed 6/25

9:55 am-9:05 pm

2 stops10h 10m

$484

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

Fri 3/21

3:15 pm-10:27 pm

1 stop8h 12m

Ontario

Tue 3/25

4:30 pm-11:10 pm

1 stop5h 40m

$534

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

Tue 4/1

4:30 pm-11:13 pm

1 stop7h 43m

$167

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

Mon 3/31

6:20 am-1:43 pm

1 stop8h 23m

$183

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

Tue 4/1

11:45 am-8:49 pm

1 stop10h 04m

$280

Mexico CityOntario

MEX - ONT

MEXONT

Mexico City Benito Juarez

Tue 5/6

3:10 pm-11:41 pm

1 stop9h 31m

$297

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/3

Showing 1-10 of 16 results
1
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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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice 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 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.

Travel insights for flights from Mexico City to Ontario

Get recent, data-driven insights about flights from Mexico City to Ontario including ideal travel times, pricing trends, and more.

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 $246). Flying from Mexico City to Ontario in March is currently the most expensive (average of $313). 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.

What is the cheapest time of day to fly from MEX to ONT?

Find hourly flight availability from Mexico City to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 3, 2025.

A simple way to save on the total cost of your ticket is to fly from Mexico City to Ontario in the morning. If you’re flexible enough to do this you can expect to save up to 15% on your trip compared to booking a flight at noon.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 March 3, 2025.
Read reviews from past customers who have flown Delta, Aeromexico and United Airlines from Mexico City to Ontario. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,068 reviews

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,068 reviews
Delta
8.0
Very good
8,068 reviews

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Aeromexico
7.5
Good
1,744 reviews
Delta
8.0
Very good
8,068 reviews

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,679 reviews
Delta
8.0
Very good
8,068 reviews

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,068 reviews

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

WestJet
7.2
Good
2,788 reviews
Delta
8.0
Very good
8,068 reviews

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

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

    Frontier, at $313, was found to be the cheapest airline from Mexico City to Ontario.Alternate airlines to your destination round-trip include Volaris and United Airlines. Frontier is priced at 36% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Mexico City to Ontario one-way?

    The cheapest airline one-way is Volaris, with whom users have recently found tickets for as low as $167. However, be on the lookout for offers from Frontier and Delta, as they are both options that can get you from Mexico City to Ontario for a low price.

  • 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 $246). Flying from Mexico City to Ontario in March is currently the most expensive (average of $313). 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.

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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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