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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MEX
Mar 26 — Apr 21
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Cheap 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 February 24, 2026.

This Mytrip deal was found by Cheapflights users on 2/22. 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 2/2312:50 pm
ONT
-
SJD
Nonstop2h 22m
Volaris
Sat 2/285:06 pm
SJD
-
ONT
Nonstop2h 38m
Volaris
Deal found 2/22$181
This Mytrip deal was found by Cheapflights users on 2/21. 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 2/2512:50 pm
ONT
-
SJD
Nonstop2h 22m
Volaris
Fri 2/275:06 pm
SJD
-
ONT
Nonstop2h 38m
Volaris
Deal found 2/21$182
This Mytrip deal was found by Cheapflights users on 2/20. 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 3/912:50 pm
ONT
-
SJD
Nonstop2h 22m
Volaris
Fri 3/134:06 pm
SJD
-
ONT
Nonstop2h 38m
Volaris
Deal found 2/20$183
This Mytrip deal was found by Cheapflights users on 2/22. 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 3/1512:50 pm
ONT
-
SJD
Nonstop2h 22m
Volaris
Thu 3/194:06 pm
SJD
-
ONT
Nonstop2h 38m
Volaris
Deal found 2/22$184
This CheapOair deal was found by Cheapflights users on 2/23. 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 3/2212:50 pm
ONT
-
SJD
Nonstop2h 22m
Volaris
Wed 3/254:06 pm
SJD
-
ONT
Nonstop2h 38m
Volaris
Deal found 2/23$185
This CheapOair deal was found by Cheapflights users on 2/24. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/412:50 pm
ONT
-
SJD
Nonstop2h 22m
Volaris
Sat 3/75:06 pm
SJD
-
ONT
Nonstop2h 38m
Volaris
Deal found 2/24$186
This Gotogate deal was found by Cheapflights users on 2/23. 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.
Sun 3/2212:50 pm
ONT
-
SJD
Nonstop2h 22m
Volaris
Sat 3/284:06 pm
SJD
-
ONT
Nonstop2h 38m
Volaris
Deal found 2/23$188
This Mytrip deal was found by Cheapflights users on 2/21. 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 3/611:59 pm
ONT
-
BJX
Nonstop3h 05m
Volaris
Tue 3/178:27 am
BJX
-
ONT
Nonstop3h 33m
Volaris
Deal found 2/21$192
This Mytrip deal was found by Cheapflights users on 2/21. 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 3/411:59 pm
ONT
-
BJX
Nonstop3h 05m
Volaris
Thu 3/59:27 am
BJX
-
ONT
Nonstop3h 33m
Volaris
Deal found 2/21$195
This CheapOair deal was found by Cheapflights users on 2/24. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1012:59 am
ONT
-
BJX
Nonstop3h 01m
Volaris
Thu 5/148:43 am
BJX
-
ONT
Nonstop3h 17m
Volaris
Deal found 2/24$196
This lastminute.com deal was found by Cheapflights users on 2/22. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/812:40 pm
ONT
-
SJD
Nonstop2h 24m
Volaris
Thu 4/94:02 pm
SJD
-
ONT
Nonstop2h 25m
Volaris
Deal found 2/22$211
This Gotogate deal was found by Cheapflights users on 2/21. 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.
Sun 2/2212:50 pm
ONT
-
SJD
Nonstop2h 22m
Volaris
Mon 3/25:06 pm
SJD
-
ONT
Nonstop2h 38m
Volaris
Deal found 2/21$241

Find flight deals from Ontario to Mexico

Keep the following information in mind while searching for Ontario to Mexico flight deals. Data was last updated February 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$181
(Mytrip)

One-way from

$40
(Mytrip)

Popular in

December

Cheapest in

March

Average price

$353

Good round-trip deal

$173 or less

Good one-way deal

$41 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 ($56 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).
Average for round-trip flights in February 2026
Price to beat on a round-trip flight from Ontario to Mexico.
Price to beat on a one-way flight from Ontario to Mexico.

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 February 24, 2026.
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

Sat 2/28

12:42 am-10:35 am

1 stop7h 53m

Oaxaca Xoxocotlan

Sat 3/7

4:52 pm-10:37 pm

1 stop7h 45m

$309

OntarioMonterrey

ONT - MTY

ONTMTY

Ontario

Sat 3/14

12:27 am-7:34 am

1 stop6h 07m

Monterrey Gen Mariano Escobedo

Wed 3/18

2:55 pm-8:11 pm

1 stop6h 16m

$311

OntarioMonterrey

ONT - MTY

ONTMTY

Ontario

Sat 5/16

12:40 pm-8:08 pm

1 stop6h 28m

Monterrey Gen Mariano Escobedo

Sat 5/23

12:38 pm-11:05 pm

1 stop11h 27m

$313

OntarioLa Paz

ONT - LAP

ONTLAP

Ontario

Wed 5/20

12:55 am-11:29 am

1 stop10h 34m

La Paz Leon

Sat 5/30

3:26 pm-11:05 pm

1 stop7h 39m

$323

OntarioOaxaca

ONT - OAX

ONTOAX

Ontario

Mon 3/2

11:02 pm-10:35 am

1 stop9h 33m

Oaxaca Xoxocotlan

Sun 3/8

4:52 pm-10:37 pm

1 stop6h 45m

$325

OntarioLa Paz

ONT - LAP

ONTLAP

Ontario

Fri 3/6

11:02 pm-8:42 am

1 stop8h 40m

La Paz Leon

Mon 3/9

3:14 pm-10:52 pm

1 stop7h 38m

$334

OntarioOaxaca

ONT - OAX

ONTOAX

Ontario

Tue 3/10

11:02 pm-7:35 am

1 stop7h 33m

Oaxaca Xoxocotlan

Sun 3/15

4:52 pm-10:37 pm

1 stop6h 45m

$334

OntarioLeón

ONT - BJX

ONTBJX

Ontario

Thu 4/16

6:49 pm-10:51 am

2 stops15h 02m

León Del Bajio

Sat 4/25

11:35 am-9:50 pm

1 stop11h 15m

$345

OntarioGuadalajara

ONT - GDL

ONTGDL

Ontario

Fri 4/24

6:45 pm-1:34 pm

2 stops17h 49m

Guadalajara Miguel Hidal

Tue 4/28

12:30 pm-9:50 pm

1 stop10h 20m

$362

OntarioLa Paz

ONT - LAP

ONTLAP

Ontario

Sat 2/28

12:50 pm-7:30 am

3 stops17h 40m

La Paz Leon

Fri 3/6

3:14 pm-10:52 pm

1 stop8h 38m

$369

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/23

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, April is the cheapest month in which you can book a flight from Ontario to Mexico (average of $44). Flying from Ontario to Mexico in November is currently the most expensive (average of $148). 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 February 24, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Mexico as you normally would.

How often are flights from Ontario to Mexico delayed?

About 12% of weekly flights between Ontario and Mexico have experienced delays in the past year, with the average delay time being 124 minutes.

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

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

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

Saturday tends to have the lowest number of delays on this route, whereas Sunday 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 12% 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 February 24, 2026.
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.

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

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 20m. Fly via Volaris, United Airlines, 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, April is the cheapest month in which you can book a flight from Ontario to Mexico (average of $44). Flying from Ontario to Mexico in November is currently the most expensive (average of $148). 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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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 February 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
VolarisCheapest$107Average$337FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$160Average$465FlexibilityNo cancel feeOn-time69%
FrontierCheapest$167Average$404FlexibilityNo cancel feeOn-time62%
VivaCheapest$172Average$351FlexibilityNo cancel feeOn-timeN/A
AeromexicoCheapest$179Average$359FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$191Average$445FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$277Average$386FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$312Average$555FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$312Average$572FlexibilityNo cancel feeOn-time71%

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