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

Flying on Volaris is currently your cheapest option to Mexico City, with prices starting at $354. Another option worth looking into is Frontier, starting at $454 round trip. These flights start at 18% lower than the current average price 3 months from now.

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

The cheapest airline one-way is Volaris, with whom users have recently found tickets for as low as $172. However, be on the lookout for offers from Frontier and Avianca, as they are both options that can get you from Ontario to Mexico City for a low price.

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.

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

Consider American Airlines, Aeromexico or United Airlines 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 $372.

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 $375 on average during March, but can be found for as low as $177.

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.

$172+ Flights from Ontario to Mexico City

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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

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Cheapflights Tip: The best prices from Ontario to Mexico City Benito Juarez are usually found in April or February, booked 49 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	$354 (FlightHub)
One-way from	$172 (FlightHub)
Popular in	December
Cheapest in	April
Average price	$366

From Ontario to Mexico City Benito Juarez

Search Deals

One-way flight from Ontario to Mexico City Benito Juarez

Search Deals

Highest demand for flights based on searches. 22% potential increase in price ($124 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in June 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 June 12, 2025.

Thu 9/2512:40 pmONT - MEX

1 stop10h 30mVolaris

Mon 9/299:00 amMEX - ONT

1 stop10h 19mVolaris

Deal found 6/11

$354

Fri 7/412:48 pmONT - MEX

1 stop8h 12mMultiple Airlines

Tue 7/810:35 pmMEX - ONT

1 stop25h 38mMultiple Airlines

Deal found 6/11

$403

Fri 11/710:14 amONT - MEX

1 stop10h 46mFrontier

Tue 11/1111:45 amMEX - ONT

1 stop10h 57mFrontier

Deal found 6/11

$454

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 June 12, 2025.

Thu 9/2512:40 pmONT - MEX

1 stop10h 30mVolaris

Mon 9/299:00 amMEX - ONT

1 stop10h 19mVolaris

Deal found 6/11

$354

Fri 7/412:48 pmONT - MEX

1 stop8h 12mMultiple Airlines

Tue 7/810:35 pmMEX - ONT

1 stop25h 38mMultiple Airlines

Deal found 6/11

$403

Fri 11/710:14 amONT - MEX

1 stop10h 46mFrontier

Tue 11/1111:45 amMEX - ONT

1 stop10h 57mFrontier

Deal found 6/11

$454

Last-minute flights from Ontario to Mexico City
Discover last-minute flight deals from Ontario to Mexico City. Data last updated June 12, 2025 and is based on user searches.

Tue 6/1712:59 amONT - MEX

1 stop15h 31mVolaris

Wed 7/24:30 pmMEX - ONT

1 stop7h 43mVolaris

Deal found 6/9

$467

Tue 6/177:05 amONT - MEX

2 stops14h 00mDelta

Tue 7/1512:45 pmMEX - ONT

2 stops11h 57mDelta

Deal found 6/9

$695

Wed 6/187:00 amONT - MEX

1 stop12h 00mMultiple Airlines

Fri 6/208:10 amMEX - ONT

1 stop16h 40mMultiple Airlines

Deal found 6/12

$474

Wed 6/185:10 amONT - MEX

2 stops17h 05mAir Canada

Fri 6/2012:15 amMEX - ONT

2 stops18h 12mAir Canada

Deal found 6/11

$1,237

Thu 6/1912:59 amONT - MEX

1 stop15h 31mFrontier

Mon 6/3011:45 amMEX - ONT

1 stop10h 06mFrontier

Deal found 6/11

$508

Thu 6/196:00 amONT - MEX

1 stop10h 50mUnited Airlines

Mon 7/75:05 amMEX - ONT

1 stop8h 09mUnited Airlines

Deal found 6/11

$840

Thu 6/196:25 amONT - MEX

2 stops31h 30mWestJet

Tue 6/241:01 amMEX - ONT

2 stops17h 09mWestJet

Deal found 6/10

$3,511

Sat 6/2111:25 pmONT - MEX

1 stop10h 30mAvianca

Sat 7/54:40 amMEX - ONT

3 stops18h 15mAvianca

Deal found 6/11

$672

Sat 6/217:05 amONT - MEX

1 stop10h 30mAeromexico

Thu 6/261:05 pmMEX - ONT

1 stop10h 20mAeromexico

Deal found 6/10

$920

Sun 6/2212:59 amONT - MEX

1 stop8h 21mAmerican Airlines

Wed 7/165:00 amMEX - ONT

2 stops14h 08mAmerican Airlines

Deal found 6/10

$710

Wed 7/26:00 amONT - MEX

2 stops11h 00mDelta

Tue 7/228:25 amMEX - ONT

2 stops16h 17mDelta

Deal found 6/10

$550

Fri 7/412:48 pmONT - MEX

1 stop8h 12mMultiple Airlines

Tue 7/810:35 pmMEX - ONT

1 stop25h 38mMultiple Airlines

Deal found 6/11

$403

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 June 12, 2025.

Fri 9/1212:40 pmONT - MEX

1 stop10h 30mVolaris

Deal found 6/10

$172

Sun 8/105:14 pmONT - MEX

1 stop25h 46mMultiple Airlines

Deal found 6/12

$177

Fri 6/2712:59 amONT - MEX

1 stop15h 31mFrontier

Deal found 6/10

$211

Sat 7/511:25 pmONT - MEX

1 stop10h 30mAvianca

Deal found 6/12

$275

Sun 8/1011:59 pmONT - MEX

2 stops13h 01mAmerican Airlines

Deal found 6/12

$284

Mon 6/3010:05 pmONT - MEX

2 stops16h 35mDelta

Deal found 6/9

$292

Wed 7/95:05 amONT - MEX

2 stops11h 45mUnited Airlines

Deal found 6/10

$337

Tue 6/246:41 pmONT - MEX

2 stops27h 09mAir Canada

Deal found 6/12

$522

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

OntarioMexico City

ONT - MEX

ONTMEX

Ontario

Mon 8/11

1:09 am-9:40 am

1 stop7h 31m

Mexico City Benito Juarez

Sun 8/17

12:00 pm-6:19 pm

1 stop7h 19m

$386

OntarioMexico City

ONT - MEX

ONTMEX

Ontario

Fri 7/4

12:48 pm-10:00 pm

1 stop8h 12m

Mexico City Benito Juarez

Tue 7/8

10:35 pm-11:13 pm

1 stop25h 38m

$403

OntarioMexico City

ONT - MEX

ONTMEX

Ontario

Fri 7/25

12:59 am-5:30 pm

1 stop15h 31m

Mexico City Benito Juarez

Fri 8/1

11:45 am-8:52 pm

1 stop10h 07m

$478

OntarioMexico City

ONT - MEX

ONTMEX

Ontario

Thu 8/21

11:25 pm-10:55 am

1 stop10h 30m

Mexico City Benito Juarez

Sat 9/6

5:00 am-9:55 pm

3 stops17h 55m

$549

OntarioMexico City

ONT - MEX

ONTMEX

Ontario

Wed 7/2

6:00 am-6:00 pm

2 stops11h 00m

Mexico City Benito Juarez

Tue 7/22

8:25 am-11:42 pm

2 stops16h 17m

$550

OntarioMexico City

ONT - MEX

ONTMEX

Ontario

Sun 8/3

6:15 am-2:30 pm

1 stop7h 15m

Mexico City Benito Juarez

Tue 8/12

5:00 am-11:52 am

1 stop7h 52m

$562

OntarioMexico City

ONT - MEX

ONTMEX

Ontario

Sun 8/10

5:14 pm-8:00 pm

1 stop25h 46m

$177

OntarioMexico City

ONT - MEX

ONTMEX

Ontario

Fri 8/15

12:40 pm-11:45 pm

1 stop10h 05m

$178

OntarioMexico City

ONT - MEX

ONTMEX

Ontario

Fri 6/27

12:59 am-5:30 pm

1 stop15h 31m

$211

OntarioMexico City

ONT - MEX

ONTMEX

Ontario

Sat 7/5

11:25 pm-10:55 am

1 stop10h 30m

$275

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 14 results

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 49 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.

Rainfall in Mexico City by month

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.

Temperature in Mexico City by month

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).

Reviews of airlines servicing Mexico City

Get a feel of what it's like to fly with Delta, United Airlines and American Airlines from Ontario to Mexico City by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,946 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,790 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Canada

7.1

Good

9,537 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Avianca

6.7

Okay

2,345 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What are the cheapest airlines flying from Ontario to Mexico City round-trip?
Flying on Volaris is currently your cheapest option to Mexico City, with prices starting at $354. Another option worth looking into is Frontier, starting at $454 round trip. These flights start at 18% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Ontario to Mexico City one-way?
The cheapest airline one-way is Volaris, with whom users have recently found tickets for as low as $172. However, be on the lookout for offers from Frontier and Avianca, as they are both options that can get you from Ontario to Mexico City for a low price.
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

Valle de Bravo

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Other flights to Mexico City

Top 5 airlines flying from Ontario to Mexico City

Airline	Cheapest	Average	Flexibility	On-time
Viva	Cheapest$228	Average$248	FlexibilityNo cancel fee	On-timeN/A
Aeromexico	Cheapest$245	Average$318	FlexibilityNo cancel fee	On-timeN/A
Volaris	Cheapest$280	Average$389	FlexibilityNo cancel fee	On-time79%
United Airlines	Cheapest$514	Average$707	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$531	Average$664	FlexibilityNo cancel fee	On-time71%

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$172+ 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 9/12. 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 49 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 June 12, 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 June 12, 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 June 9, 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 June 12, 2025.

Rainfall in Mexico City by month

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

Temperature in Mexico City by month

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

Reviews of airlines servicing Mexico City

Get a feel of what it's like to fly with Delta, United Airlines and American Airlines from Ontario to Mexico City by reading reviews from past customers. 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 are the cheapest airlines flying from Ontario to Mexico City round-trip?

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

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?

Traveling to a place near Ontario?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ontario to Mexico City

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Top 5 airlines flying from Ontario to Mexico City

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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 June 12, 2025.