Mexico

$40+ Cheap flights from Ontario (ONT) to Mexico

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 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MEX
Dec 13 — Dec 201
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Mexico 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

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ontario to Mexico

Keep the following information in mind while searching for Ontario to Mexico flight deals. Data was last updated November 13, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$175
(Mytrip)

One-way from

$40
(CheapOair)

Popular in

December

Cheapest in

March

Average price

$394

Good round-trip deal

$179 or less

Good one-way deal

$43 or less
Provider with most accurate pricing for Los Angeles-Mexico City Benito Juarez flight deals.
Provider most trusted by Cheapflights users for Los Angeles-Mexico City Benito Juarez flights.
From Ontario to Mexico
One-way flight from Ontario to Mexico
Highest demand for flights based on searches. 12% potential increase in price ($52 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Average for round-trip flights in November 2025
Price to beat on a round-trip flight from Ontario to Mexico.
Price to beat on a one-way flight from Ontario to Mexico.

Find flight deals from Ontario to Mexico

Cheapest flights from Ontario to Mexico
Explore the most affordable flight options available from Ontario to Mexico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.

This CheapOair deal was found by Cheapflights users on 11/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3012:50 pmONT - SJD
Nonstop2h 22mVolaris
Thu 1/85:06 pmSJD - ONT
Nonstop2h 38mVolaris
Deal found 11/13$177
This CheapOair deal was found by Cheapflights users on 11/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1612:50 pmONT - SJD
Nonstop2h 22mVolaris
Wed 11/195:06 pmSJD - ONT
Nonstop2h 38mVolaris
Deal found 11/11$178
This CheapOair deal was found by Cheapflights users on 11/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:50 pmONT - SJD
Nonstop2h 22mVolaris
Wed 1/75:06 pmSJD - ONT
Nonstop2h 38mVolaris
Deal found 11/11$183
This CheapOair deal was found by Cheapflights users on 11/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/212:50 pmONT - SJD
Nonstop2h 22mVolaris
Tue 12/95:06 pmSJD - ONT
Nonstop2h 38mVolaris
Deal found 11/11$211
This CheapOair deal was found by Cheapflights users on 11/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2912:50 pmONT - SJD
Nonstop2h 22mVolaris
Sat 12/63:36 pmSJD - ONT
1 stop8h 16mVolaris
Deal found 11/12$215
This CheapOair deal was found by Cheapflights users on 11/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1512:50 pmONT - SJD
Nonstop2h 22mVolaris
Sat 11/223:34 pmSJD - ONT
1 stop9h 23mVolaris
Deal found 11/12$225
This CheapOair deal was found by Cheapflights users on 11/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1712:50 pmONT - SJD
Nonstop2h 22mVolaris
Sat 11/223:34 pmSJD - ONT
1 stop9h 23mVolaris
Deal found 11/12$226
This CheapOair deal was found by Cheapflights users on 11/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2412:50 pmONT - SJD
Nonstop2h 22mVolaris
Mon 12/293:36 pmSJD - ONT
1 stop8h 16mVolaris
Deal found 11/13$231
This CheapOair deal was found by Cheapflights users on 11/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/512:50 pmONT - SJD
Nonstop2h 22mVolaris
Mon 12/83:36 pmSJD - ONT
1 stop8h 16mVolaris
Deal found 11/11$236
This CheapOair deal was found by Cheapflights users on 11/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1512:50 pmONT - SJD
Nonstop2h 22mVolaris
Mon 11/175:06 pmSJD - ONT
Nonstop2h 38mVolaris
Deal found 11/12$252
This Mytrip deal was found by Cheapflights users on 11/11. 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.
Sat 12/612:50 pmONT - GDL
2 stops11h 16mVolaris
Thu 12/116:54 pmGDL - ONT
Nonstop3h 17mVolaris
Deal found 11/11$296
This Mytrip deal was found by Cheapflights users on 11/12. 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.
Fri 12/512:50 pmONT - GDL
2 stops11h 16mVolaris
Wed 12/109:35 pmGDL - ONT
Nonstop3h 17mVolaris
Deal found 11/12$305

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Mexico 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 November 13, 2025.
Use the filters below to find and compare flights from Ontario to Mexico that are best for you.

Fly from

Ontario

Fly to

Mexico

Route

Depart

Return

Price

OntarioGuadalajara

ONT - GDL

ONTGDL

Ontario

Wed 1/21

6:00 am-10:35 pm

2 stops14h 35m

Guadalajara Miguel Hidal

Wed 1/28

1:35 pm-9:58 pm

1 stop10h 23m

$298

OntarioGuadalajara

ONT - GDL

ONTGDL

Ontario

Sun 1/18

11:02 pm-4:00 am

Nonstop2h 58m

Guadalajara Miguel Hidal

Fri 1/30

6:54 pm-8:11 pm

Nonstop3h 17m

$298

OntarioLa Paz

ONT - LAP

ONTLAP

Ontario

Fri 1/23

11:59 pm-5:29 pm

2 stops16h 30m

La Paz Leon

Mon 1/26

3:14 pm-10:52 pm

1 stop8h 38m

$301

OntarioGuadalajara

ONT - GDL

ONTGDL

Ontario

Thu 1/22

6:00 am-2:42 pm

1 stop6h 42m

Guadalajara Miguel Hidal

Wed 2/4

4:15 pm-11:58 pm

1 stop9h 43m

$315

OntarioGuadalajara

ONT - GDL

ONTGDL

Ontario

Sat 1/24

1:53 pm-12:36 pm

2 stops20h 43m

Guadalajara Miguel Hidal

Wed 2/4

1:35 pm-9:58 pm

1 stop10h 23m

$315

OntarioGuadalajara

ONT - GDL

ONTGDL

Ontario

Thu 1/29

6:00 am-2:42 pm

1 stop6h 42m

Guadalajara Miguel Hidal

Wed 2/4

4:15 pm-11:58 pm

1 stop9h 43m

$315

OntarioGuadalajara

ONT - GDL

ONTGDL

Ontario

Thu 1/22

1:53 pm-12:36 pm

2 stops20h 43m

Guadalajara Miguel Hidal

Wed 2/4

1:35 pm-9:58 pm

1 stop10h 23m

$315

OntarioSan José del Cabo

ONT - SJD

ONTSJD

Ontario

Sat 2/14

12:42 am-11:30 am

1 stop9h 48m

San José del Cabo Los Cabos

Wed 2/18

5:06 pm-6:44 pm

Nonstop2h 38m

$317

OntarioLa Paz

ONT - LAP

ONTLAP

Ontario

Fri 2/13

11:34 pm-4:38 pm

2 stops16h 04m

La Paz Leon

Mon 2/16

3:14 pm-8:11 pm

1 stop5h 57m

$330

OntarioOaxaca

ONT - OAX

ONTOAX

Ontario

Thu 3/19

1:04 am-8:35 am

1 stop6h 31m

Oaxaca Xoxocotlan

Wed 3/25

4:52 pm-11:14 pm

1 stop7h 22m

$330

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Ontario to Mexico

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

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

Currently, December is the cheapest month in which you can book a flight from Ontario to Mexico (average of $39). Flying from Ontario to Mexico in June is currently the most expensive (average of $138). 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 MX?

Find hourly flight availability from Ontario to Mexico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 13, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 25% on flights from Ontario to Mexico by exploring options for tickets in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from Ontario to Mexico. Price data was last updated on December 16, 2024.

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

Reviews of airlines servicing Mexico

Get insights into the airlines that provide service to Mexico. 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 Mexico. Reviews last updated November 13, 2025.
Get a feel of what it's like to fly with Southwest, United Airlines, and American Airlines from Ontario to Mexico by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Overall

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Overall

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Overall

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Overall

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Overall

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Mexico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from Ontario to Mexico?

    For a flight from Ontario to Mexico, you will be flying from Ontario. Ontario (ONT) is just 3.1 mi from the center of the city.

  • How long is the flight from Ontario to Mexico?

    There are many flights that can get you from Ontario to Mexico in 2h 58m. Fly via United Airlines, Volaris, or Delta to get the fastest option. The distance from Ontario to Mexico is about 1278 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Ontario to Mexico?

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Mexico 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?

    Currently, December is the cheapest month in which you can book a flight from Ontario to Mexico (average of $39). Flying from Ontario to Mexico in June is currently the most expensive (average of $138). 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.

Alternative routes for Ontario to Mexico

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

Top 8 airlines flying from Ontario to Mexico

Discover the top 8 airlines that operate flights from Ontario to Mexico. 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 November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
VolarisCheapest$151Average$359FlexibilityNo cancel feeOn-time79%
FrontierCheapest$163Average$402FlexibilityNo cancel feeOn-time62%
VivaCheapest$211Average$301FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$237Average$461FlexibilityNo cancel feeOn-time75%
DeltaCheapest$263Average$438FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$310Average$502FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$312Average$582FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$312Average$603FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.