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

Flying on Volaris is currently your cheapest option to Mexico City, with prices starting at $302. This flight start at 29% lower than the current average price 3 months from now.

What is the cheapest day to fly from Ontario to Mexico City?

Travelers seeking maximum savings on their Ontario to Mexico City flight should consider departing on Friday afternoons when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Mexico City ranges from 0.0 - 4.7 inches per month. July is typically the wettest month, when rainfall can reach 4.7 in. January is typically the driest time to visit Mexico City when rainfall is around 0.0 in.

If weather is an important factor for your trip to Mexico City, use this chart to help with planning. For those seeking warmer temperatures, May is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 55.4 F).

What are the most popular airlines that fly from Ontario to Mexico City?

Consider American Airlines, Viva or Volaris when booking your flight. These represent the most popular airlines when flying from Ontario to Mexico City.

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

Users have found that flying from Ontario to Mexico City on a Wednesday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from Ontario to Mexico City?

Find a great deal and save up to 24% by booking at least 53 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Ontario to Mexico City within the next two weeks, with the cheapest ticket starting at $374.

What is the cheapest month to fly from Ontario to Mexico City?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, March can be a great choice for travel to Mexico City. Flights to Mexico City from Ontario in March are about $373 on average during March, but can be found for as low as $176.

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

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

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

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

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

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

$94+ Flights from Ontario to Mexico City

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Find cheap flights from Ontario to Mexico City with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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Cheapflights Tip: The best prices from Ontario to Mexico City Benito Juarez are usually found in April or February, booked 38 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from Ontario to Mexico City

Round-trip from	$302 (Flightnetwork)
One-way from	$94 (Mytrip)
Popular in	December
Cheapest in	April
Average price	$378

From Ontario to Mexico City Benito Juarez

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One-way flight from Ontario to Mexico City Benito Juarez

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Highest demand for flights based on searches. 24% potential increase in price ($138 potential increase over avg. RT price).

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Cheapest flight prices on average. 5% potential price decrease ($22 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from Ontario to Mexico City

Cheapest flights from Ontario to Mexico City
Explore the most affordable flight options available from Ontario to Mexico City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Fri 9/1212:40 pmONT - MEX

1 stop10h 05mVolaris

Fri 9/199:00 amMEX - ONT

1 stop10h 19mVolaris

Deal found 7/28

$302

Best flights from Ontario to Mexico City
Discover carefully curated flight deals from Ontario to Mexico City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 30, 2025.

Fri 9/1212:40 pmONT - MEX

1 stop10h 05mVolaris

Fri 9/199:00 amMEX - ONT

1 stop10h 19mVolaris

Deal found 7/28

$302

Last-minute flights from Ontario to Mexico City
Discover last-minute flight deals from Ontario to Mexico City. Data last updated July 30, 2025 and is based on user searches.

Fri 8/89:11 pmONT - MEX

1 stop11h 29mVolaris

Wed 8/134:30 pmMEX - ONT

1 stop7h 43mVolaris

Deal found 7/30

$361

Fri 8/812:40 pmONT - MEX

2 stops20h 00mMultiple Airlines

Wed 8/139:15 amMEX - ONT

1 stop11h 03mMultiple Airlines

Deal found 7/30

$430

Fri 8/812:48 pmONT - MEX

1 stop8h 12mFrontier

Fri 9/511:45 amMEX - ONT

1 stop11h 10mFrontier

Deal found 7/29

$483

Tue 8/196:05 amONT - MEX

1 stop6h 50mAeromexico

Tue 8/263:10 pmMEX - ONT

1 stop8h 30mAeromexico

Deal found 7/30

$413

Mon 8/259:11 pmONT - MEX

1 stop11h 29mVolaris

Sat 8/309:00 amMEX - ONT

1 stop10h 19mVolaris

Deal found 7/28

$332

One-way flights from Ontario to Mexico City
Search for one-way flight options from Ontario to Mexico City. Find affordable one-way fares based on user searches. Data last updated July 30, 2025.

Sat 8/3012:40 pmONT - MEX

1 stop10h 05mVolaris

Deal found 7/29

$94

Sun 9/147:15 pmONT - MEX

2 stops23h 55mMultiple Airlines

Deal found 7/29

$158

Fly from

Fly to

Route

Depart

Return

Price

OntarioMexico City

ONT - MEX

ONTMEX

Ontario

Fri 9/12

12:40 pm-11:45 pm

1 stop10h 05m

Mexico City Benito Juarez

Fri 9/19

9:00 am-6:19 pm

1 stop10h 19m

$302

OntarioMexico City

ONT - MEX

ONTMEX

Ontario

Sat 8/30

12:40 pm-11:45 pm

1 stop10h 05m

$94

OntarioMexico City

ONT - MEX

ONTMEX

Ontario

Sun 9/14

7:15 pm-8:10 pm

2 stops23h 55m

$158

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from Ontario to Mexico City

Have a flexible travel schedule? Discover the best time to fly to Mexico City from Ontario 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 Ontario to Mexico City

How far ahead should I book a flight from Ontario to Mexico City?

Booking 38 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ontario to Mexico City. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, May is the cheapest month in which you can book a flight from Ontario to Mexico City (average of $388). Flying from Ontario to Mexico City in December is currently the most expensive (average of $615). 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 ONT to MEX?

Unlike in the morning, when flights are generally more expensive, you can save up to 52% on flights from Ontario to Mexico City by exploring options for tickets in the afternoon.

Reviews of airlines servicing Mexico City

Peruse reviews from past customers who have flown with Volaris from Ontario to Mexico City to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Volaris

6.6

Okay

1,164 reviews

Reviews

1 / 20

4.0

Okay

Tania,Jul 2025

OAX - MEX

They don’t even offer you water, we paid $300 usd from Oaxaca to PV and you have to pay for water, and tv entertainment. Seats are super small that a regular size person won’t fit comfortably.

Volaris

6.6

Okay

1,164 reviews

Volaris

6.6

Okay

1,164 reviews

Reviews

1 / 20

4.0

Okay

Tania,Jul 2025

OAX - MEX

They don’t even offer you water, we paid $300 usd from Oaxaca to PV and you have to pay for water, and tv entertainment. Seats are super small that a regular size person won’t fit comfortably.

Related info for your journey

What is the cheapest airline to fly from Ontario to Mexico City round-trip?
Flying on Volaris is currently your cheapest option to Mexico City, with prices starting at $302. This flight start at 29% lower than the current average price 3 months from now.
Can I find deals for flights from Ontario to Mexico City that include hotel bookings?
Yes. In addition to deals on Ontario to Mexico City flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Mexico City?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Mexico City.
Can I find deals for business class flights from Ontario to Mexico City?
Yes. Cheapflights offers flight deals from Ontario to Mexico City 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 Ontario to Mexico City?
Currently, May is the cheapest month in which you can book a flight from Ontario to Mexico City (average of $388). Flying from Ontario to Mexico City in December is currently the most expensive (average of $615). 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

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Other flights to Mexico City

Top 3 airlines flying from Ontario to Mexico City

Airline	Cheapest	Average	Flexibility	On-time
Viva	Cheapest$228	Average$248	FlexibilityNo cancel fee	On-timeN/A
Volaris	Cheapest$281	Average$380	FlexibilityNo cancel fee	On-time79%
American Airlines	Cheapest$531	Average$646	FlexibilityNo cancel fee	On-time71%

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$94+ Cheap flights from Ontario (ONT) to Mexico City (MEX)

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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Mexico City with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Ontario to Mexico City Benito Juarez are usually found in April or February, booked 38 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from Ontario to Mexico City

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Ontario to Mexico City

Cheapest flights from Ontario to Mexico CityExplore the most affordable flight options available from Ontario to Mexico City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Explore the most affordable flight options available from Ontario to Mexico City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Mexico City that are best for you.

Best time to book a flight from Ontario to Mexico City

Have a flexible travel schedule? Discover the best time to fly to Mexico City from Ontario with our price prediction graph.

Cheapflights Insights

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

How far ahead should I book a flight from Ontario to Mexico City?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Mexico City. Price data was last updated on July 25, 2025.

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

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

Find hourly flight availability from Ontario to Mexico City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2025.

Reviews of airlines servicing Mexico City

Peruse reviews from past customers who have flown with Volaris from Ontario to Mexico City to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

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

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

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

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

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.

Alternative routes for Ontario to Mexico City

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Ontario to Mexico City

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Travel Smart

Cheapest flights from Ontario to Mexico City
Explore the most affordable flight options available from Ontario to Mexico City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.