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$77+ 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 7/16. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MEX
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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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 July 3, 2025.

Round-trip from

$186
(Gotogate)

One-way from

$77
(Orbitz)

Popular in

December

Cheapest in

March

Average price

$418

Good round-trip deal

$237 or less

Good one-way deal

$77 or less
From Ontario to Mexico
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One-way flight from Ontario to Mexico
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Highest demand for flights based on searches. 10% potential increase in price ($44 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Ontario to Mexico.
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Price to beat on a one-way flight from Ontario to Mexico.
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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 July 3, 2025.

This Mytrip deal was found by Cheapflights users on 7/3. 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 8/1712:40 pmONT - SJD
Nonstop2h 24mVolaris
Sun 8/243:54 pmSJD - ONT
Nonstop2h 25mVolaris
Deal found 7/3$183
This Travelocity deal was found by Cheapflights users on 6/30. 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.
Wed 7/912:40 pmONT - BJX
Nonstop3h 01mVolaris
Sat 7/128:43 amBJX - ONT
Nonstop3h 17mVolaris
Deal found 6/30$186
This Kiwi.com deal was found by Cheapflights users on 7/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/159:11 pmONT - GDL
Nonstop3h 05mVolaris
Sun 8/319:04 pmGDL - ONT
Nonstop3h 03mVolaris
Deal found 7/3$206
This Mytrip deal was found by Cheapflights users on 7/3. 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 8/81:09 amONT - PVR
1 stop7h 23mVolaris
Thu 8/1410:09 amPVR - ONT
1 stop14h 04mVolaris
Deal found 7/3$241
This Mytrip deal was found by Cheapflights users on 7/3. 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 8/111:09 amONT - PVR
1 stop7h 23mMultiple Airlines
Fri 8/2211:55 amPVR - ONT
1 stop8h 26mMultiple Airlines
Deal found 7/3$273
This Mytrip deal was found by Cheapflights users on 7/3. 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.
Thu 8/211:09 amONT - CUN
2 stops17h 37mVolaris
Tue 8/2610:40 amCUN - ONT
2 stops14h 27mVolaris
Deal found 7/3$294
This Priceline deal was found by Cheapflights users on 6/30. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/1412:59 amONT - CUN
1 stop13h 21mFrontier
Wed 7/233:25 pmCUN - ONT
1 stop10h 25mFrontier
Deal found 6/30$297
This Mytrip deal was found by Cheapflights users on 7/3. 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 8/2712:40 pmONT - MEX
2 stops9h 55mVolaris
Sun 8/317:00 amMEX - ONT
2 stops17h 07mVolaris
Deal found 7/3$306
This Trip.com deal was found by Cheapflights users on 7/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/91:09 amONT - OAX
1 stop8h 29mVolaris
Sat 9/204:36 pmOAX - ONT
1 stop7h 37mVolaris
Deal found 7/3$314
This Aeromexico deal was found by Cheapflights users on 7/2. 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.
Tue 9/166:00 amONT - PVR
1 stop7h 45mAeromexico
Fri 9/263:55 pmPVR - ONT
1 stop8h 47mAeromexico
Deal found 7/2$318
This Aeromexico deal was found by Cheapflights users on 6/30. 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 7/147:05 amONT - CUN
1 stop11h 15mAeromexico
Thu 10/212:25 pmCUN - ONT
1 stop8h 50mAeromexico
Deal found 6/30$343
This Trip.com deal was found by Cheapflights users on 7/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/19:11 pmONT - MID
1 stop10h 34mVolaris
Sat 11/89:29 amMID - ONT
1 stop12h 42mVolaris
Deal found 7/1$346

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 July 3, 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

OntarioSan José del Cabo

ONT - SJD

ONTSJD

Ontario

Sun 8/17

12:40 pm-3:04 pm

Nonstop2h 24m

San José del Cabo Los Cabos

Sun 8/24

3:54 pm-6:19 pm

Nonstop2h 25m

$183

OntarioLeón

ONT - BJX

ONTBJX

Ontario

Wed 7/9

12:40 pm-4:41 pm

Nonstop3h 01m

León Del Bajio

Sat 7/12

8:43 am-11:00 am

Nonstop3h 17m

$186

OntarioGuadalajara

ONT - GDL

ONTGDL

Ontario

Fri 8/15

9:11 pm-1:16 am

Nonstop3h 05m

Guadalajara Miguel Hidal

Sun 8/31

9:04 pm-11:07 pm

Nonstop3h 03m

$206

OntarioPuerto Vallarta

ONT - PVR

ONTPVR

Ontario

Fri 8/8

1:09 am-9:32 am

1 stop7h 23m

Puerto Vallarta Ordaz

Thu 8/14

10:09 am-11:13 pm

1 stop14h 04m

$241

OntarioPuerto Vallarta

ONT - PVR

ONTPVR

Ontario

Mon 8/11

1:09 am-9:32 am

1 stop7h 23m

Puerto Vallarta Ordaz

Fri 8/22

11:55 am-7:21 pm

1 stop8h 26m

$273

OntarioSan José del Cabo

ONT - SJD

ONTSJD

Ontario

Fri 8/8

12:59 am-10:35 am

1 stop9h 36m

San José del Cabo Los Cabos

Thu 8/14

3:54 pm-6:19 pm

Nonstop2h 25m

$292

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Thu 8/21

1:09 am-8:46 pm

2 stops17h 37m

Cancun

Tue 8/26

10:40 am-11:07 pm

2 stops14h 27m

$294

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Mon 7/14

12:59 am-4:20 pm

1 stop13h 21m

Cancun

Wed 7/23

3:25 pm-11:50 pm

1 stop10h 25m

$297

OntarioMexico City

ONT - MEX

ONTMEX

Ontario

Wed 8/27

12:40 pm-11:35 pm

2 stops9h 55m

Mexico City Benito Juarez

Sun 8/31

7:00 am-11:07 pm

2 stops17h 07m

$306

OntarioOaxaca

ONT - OAX

ONTOAX

Ontario

Tue 9/9

1:09 am-10:38 am

1 stop8h 29m

Oaxaca Xoxocotlan

Sat 9/20

4:36 pm-11:13 pm

1 stop7h 37m

$314

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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, May is the cheapest month in which you can book a flight from Ontario to Mexico (average of $388). Flying from Ontario to Mexico 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 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 July 3, 2025.

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.

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 July 3, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,266 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,982 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Aeromexico
7.5
Good
1,718 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • 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 $77. Aeromexico flights start at $133 while deals on Delta start at $135 one-way.

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

    Most travelers choose Ontario - Cancun, Ontario - San José del Cabo Los Cabos or Ontario - Mexico City Benito Juarez when deciding on the best route 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, May is the cheapest month in which you can book a flight from Ontario to Mexico (average of $388). Flying from Ontario to Mexico 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

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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.
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Top 10 airlines flying from Ontario to Mexico

Discover the top 10 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$140Average$452FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$157Average$382FlexibilityNo cancel feeOn-time62%
AeromexicoCheapest$170Average$373FlexibilityNo cancel feeOn-timeN/A
VolarisCheapest$174Average$364FlexibilityNo cancel feeOn-time79%
VivaCheapest$211Average$349FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$278Average$478FlexibilityNo cancel feeOn-time75%
JetBlueCheapest$305Average$445FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$310Average$599FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$312Average$610FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$362Average$583FlexibilityNo cancel feeOn-time71%

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