Mexico

$83+ 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 1/31. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MEX
Dec 26 — Jan 21
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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 26, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$221
(Travelocity)

One-way from

$83
(Mytrip)

Popular in

December

Cheapest in

March

Average price

$396

Good round-trip deal

$182 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 26, 2025.

This Travelocity 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1812:50 pmONT - SJD
Nonstop2h 22mVolaris
Wed 12/245:06 pmSJD - ONT
Nonstop2h 38mVolaris
Deal found 11/25$221
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2812:50 pmONT - SJD
Nonstop2h 22mVolaris
Fri 1/95:06 pmSJD - ONT
Nonstop2h 38mVolaris
Deal found 11/25$226
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/112:50 pmONT - SJD
Nonstop2h 22mVolaris
Sat 12/65:06 pmSJD - ONT
Nonstop2h 38mVolaris
Deal found 11/24$257
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/212:50 pmONT - SJD
Nonstop2h 22mVolaris
Fri 12/55:06 pmSJD - ONT
Nonstop2h 38mVolaris
Deal found 11/24$260
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1012:50 pmONT - SJD
Nonstop2h 22mVolaris
Tue 12/165:06 pmSJD - ONT
Nonstop2h 38mVolaris
Deal found 11/25$262
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/812:50 pmONT - SJD
Nonstop2h 22mVolaris
Sat 12/135:06 pmSJD - ONT
Nonstop2h 38mVolaris
Deal found 11/26$270
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/112:50 pmONT - SJD
Nonstop2h 22mVolaris
Thu 12/45:06 pmSJD - ONT
Nonstop2h 38mVolaris
Deal found 11/24$272
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1512:50 pmONT - SJD
Nonstop2h 22mVolaris
Tue 12/165:06 pmSJD - ONT
Nonstop2h 38mVolaris
Deal found 11/26$274
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/112:50 pmONT - SJD
Nonstop2h 22mVolaris
Fri 12/55:06 pmSJD - ONT
Nonstop2h 38mVolaris
Deal found 11/25$275
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:50 pmONT - SJD
Nonstop2h 22mVolaris
Fri 12/55:06 pmSJD - ONT
Nonstop2h 38mVolaris
Deal found 11/24$276
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/3012:50 pmONT - SJD
Nonstop2h 22mVolaris
Fri 12/55:06 pmSJD - ONT
Nonstop2h 38mVolaris
Deal found 11/24$277
This Aeromexico 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/86:00 amONT - CUN
1 stop7h 20mAeromexico
Fri 12/125:20 pmCUN - ONT
1 stop9h 38mAeromexico
Deal found 11/24$307

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 26, 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

OntarioOaxaca

ONT - OAX

ONTOAX

Ontario

Fri 1/16

12:42 am-10:35 am

1 stop7h 53m

Oaxaca Xoxocotlan

Sat 1/31

4:52 pm-10:52 pm

1 stop8h 00m

$305

OntarioOaxaca

ONT - OAX

ONTOAX

Ontario

Thu 1/15

11:02 pm-8:35 am

1 stop7h 33m

Oaxaca Xoxocotlan

Fri 1/23

4:52 pm-10:52 pm

1 stop8h 00m

$311

OntarioOaxaca

ONT - OAX

ONTOAX

Ontario

Fri 1/16

11:02 pm-10:35 am

1 stop9h 33m

Oaxaca Xoxocotlan

Sat 1/24

4:52 pm-10:52 pm

1 stop8h 00m

$314

OntarioGuadalajara

ONT - GDL

ONTGDL

Ontario

Tue 1/27

6:00 am-2:42 pm

1 stop6h 42m

Guadalajara Miguel Hidal

Tue 2/3

11:23 am-11:58 pm

2 stops14h 35m

$315

OntarioGuadalajara

ONT - GDL

ONTGDL

Ontario

Fri 1/30

6:00 am-2:42 pm

1 stop6h 42m

Guadalajara Miguel Hidal

Tue 2/3

11:23 am-11:58 pm

2 stops14h 35m

$315

OntarioOaxaca

ONT - OAX

ONTOAX

Ontario

Wed 1/14

11:02 pm-10:35 am

1 stop9h 33m

Oaxaca Xoxocotlan

Sun 1/25

4:52 pm-10:52 pm

1 stop8h 00m

$335

OntarioGuadalajara

ONT - GDL

ONTGDL

Ontario

Tue 2/3

6:00 am-10:35 pm

2 stops14h 35m

Guadalajara Miguel Hidal

Tue 3/17

5:00 am-8:50 pm

2 stops16h 50m

$337

OntarioMérida

ONT - MID

ONTMID

Ontario

Sat 1/10

11:02 pm-8:45 am

1 stop7h 43m

Mérida Rejon

Sat 1/17

9:29 am-8:11 pm

1 stop12h 42m

$349

OntarioOaxaca

ONT - OAX

ONTOAX

Ontario

Sat 1/10

11:02 pm-10:35 am

1 stop9h 33m

Oaxaca Xoxocotlan

Sat 1/17

4:52 pm-10:52 pm

1 stop8h 00m

$349

OntarioMexico City

ONT - MEX

ONTMEX

Ontario

Thu 2/12

11:34 pm-7:45 am

1 stop6h 11m

Mexico City Benito Juarez

Tue 2/17

2:10 pm-6:44 pm

1 stop6h 34m

$352

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/25

Showing 1-10 of 60 results
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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 November is currently the most expensive (average of $145). 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 26, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 23% 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 Saturday 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.

How often are flights from Ontario to Mexico delayed?

About 9% of weekly flights between Ontario and Mexico have experienced delays in the past year, with the average delay time being 103 minutes.

What is the most punctual flight time for Ontario to Mexico flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Ontario to Mexico flights?

Over the last year, Volaris have had the lowest number of delays on this route, with just 9% of flights being delayed.

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 26, 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.

Boarding

8.1

Overall

8.0

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.

Boarding

8.1

Overall

8.0

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.

Boarding

8.1

Overall

8.0

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.

Boarding

8.1

Overall

8.0

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.

Boarding

8.1

Overall

8.0

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.

Boarding

8.1

Overall

8.0

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 6h 42m. Fly via Volaris, Delta, or United Airlines 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 cheapest airlines to fly from Ontario to Mexico one-way?

    To fly one-way, consider booking your trip with Volaris, which is currently one of the cheapest options available, starting at $84. Aeromexico flights start at $140 while deals on United Airlines start at $157 one-way.

  • 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 November is currently the most expensive (average of $145). 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 Ontario to Mexico

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

Top 9 airlines flying from Ontario to Mexico

Discover the top 9 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 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
VolarisCheapest$151Average$359FlexibilityNo cancel feeOn-time79%
FrontierCheapest$165Average$403FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$208Average$487FlexibilityNo cancel feeOn-time69%
VivaCheapest$211Average$310FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$237Average$461FlexibilityNo cancel feeOn-time75%
DeltaCheapest$263Average$458FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$312Average$584FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$312Average$601FlexibilityNo cancel feeOn-time71%
AeromexicoCheapest$336Average$374FlexibilityNo cancel feeOn-timeN/A

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