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$129+ 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 7/6. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MEX
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$244
(Kiwi.com)

One-way from

$129
(CheapOair)

Popular in

December

Cheapest in

March

Average price

$370

Good round-trip deal

$276 or less

Good one-way deal

$160 or less
Provider with most accurate pricing for Los Angeles-Mexico City Benito Juarez flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-Mexico City Benito Juarez flights.
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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. 8% potential increase in price ($34 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 1, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/201:08 pmONT - GDL
1 stop5h 57mMultiple Airlines
Tue 6/178:15 amGDL - ONT
2 stops14h 36mMultiple Airlines
Deal found 4/30$244
This CheapOair deal was found by Cheapflights users on 4/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/912:40 pmONT - SJD
Nonstop2h 24mVolaris
Sun 10/123:54 pmSJD - ONT
Nonstop2h 25mVolaris
Deal found 4/30$292
This Delta deal was found by Cheapflights users on 5/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/26:00 amONT - SJD
1 stop7h 04mDelta
Thu 6/52:10 pmSJD - ONT
1 stop9h 32mDelta
Deal found 5/1$310
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/307:02 pmONT - SJD
1 stop17h 22mAmerican Airlines
Thu 7/312:09 pmSJD - ONT
1 stop9h 29mAmerican Airlines
Deal found 4/30$316
This Flightnetwork deal was found by Cheapflights users on 4/30. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/269:23 pmONT - GDL
Nonstop2h 58mVolaris
Tue 6/39:10 pmGDL - ONT
Nonstop3h 03mVolaris
Deal found 4/30$319
This CheapOair deal was found by Cheapflights users on 4/29. 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.
Thu 10/97:59 pmONT - MLM
Nonstop3h 07mVolaris
Sun 10/128:35 amMLM - ONT
Nonstop3h 25mVolaris
Deal found 4/29$338
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
Sat 8/98:09 pmONT - CUN
1 stop11h 28mFrontier
Sat 8/1610:46 amCUN - ONT
1 stop10h 28mFrontier
Deal found 4/29$354
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/2612:59 amONT - MEX
2 stops19h 21mMultiple Airlines
Tue 6/311:45 amMEX - ONT
1 stop10h 06mMultiple Airlines
Deal found 4/30$358
This CheapOair deal was found by Cheapflights users on 4/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/612:59 amONT - PVR
1 stop7h 55mMultiple Airlines
Tue 6/109:29 amPVR - ONT
1 stop10h 49mMultiple Airlines
Deal found 4/30$360
This CheapOair deal was found by Cheapflights users on 4/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/185:21 pmONT - SJD
1 stop17h 14mMultiple Airlines
Fri 7/253:54 pmSJD - ONT
Nonstop2h 25mMultiple Airlines
Deal found 4/30$367
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
Thu 5/298:38 pmONT - CUN
1 stop10h 59mMultiple Airlines
Fri 6/610:33 amCUN - ONT
1 stop10h 39mMultiple Airlines
Deal found 4/29$378
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/166:15 amONT - BJX
1 stop14h 05mAmerican Airlines
Fri 5/233:50 pmBJX - ONT
2 stops18h 11mAmerican Airlines
Deal found 4/30$382

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 May 1, 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

Tue 5/20

1:08 pm-8:05 pm

1 stop5h 57m

Guadalajara Miguel Hidal

Tue 6/17

8:15 am-9:51 pm

2 stops14h 36m

$244

OntarioSan José del Cabo

ONT - SJD

ONTSJD

Ontario

Thu 10/9

12:40 pm-3:04 pm

Nonstop2h 24m

San José del Cabo Los Cabos

Sun 10/12

3:54 pm-6:19 pm

Nonstop2h 25m

$292

OntarioSan José del Cabo

ONT - SJD

ONTSJD

Ontario

Mon 6/2

6:00 am-1:04 pm

1 stop7h 04m

San José del Cabo Los Cabos

Thu 6/5

2:10 pm-11:42 pm

1 stop9h 32m

$310

OntarioSan José del Cabo

ONT - SJD

ONTSJD

Ontario

Mon 6/30

7:02 pm-12:24 pm

1 stop17h 22m

San José del Cabo Los Cabos

Thu 7/3

12:09 pm-9:38 pm

1 stop9h 29m

$316

OntarioGuadalajara

ONT - GDL

ONTGDL

Ontario

Mon 5/26

9:23 pm-1:21 am

Nonstop2h 58m

Guadalajara Miguel Hidal

Tue 6/3

9:10 pm-11:13 pm

Nonstop3h 03m

$319

OntarioMexico City

ONT - MEX

ONTMEX

Ontario

Wed 5/28

12:40 pm-10:00 pm

1 stop8h 20m

Mexico City Benito Juarez

Wed 6/4

6:00 am-8:51 pm

2 stops15h 51m

$349

OntarioPuerto Vallarta

ONT - PVR

ONTPVR

Ontario

Fri 6/6

12:59 am-9:54 am

1 stop7h 55m

Puerto Vallarta Ordaz

Tue 6/10

9:29 am-7:18 pm

1 stop10h 49m

$360

OntarioSan José del Cabo

ONT - SJD

ONTSJD

Ontario

Fri 7/18

5:21 pm-10:35 am

1 stop17h 14m

San José del Cabo Los Cabos

Fri 7/25

3:54 pm-6:19 pm

Nonstop2h 25m

$367

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Mon 6/9

12:59 am-4:22 pm

1 stop13h 23m

Cancun

Wed 6/25

3:25 pm-11:50 pm

1 stop10h 25m

$370

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Thu 5/29

8:38 pm-9:37 am

1 stop10h 59m

Cancun

Fri 6/6

10:33 am-7:12 pm

1 stop10h 39m

$378

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/1

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 $400). 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 May 1, 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.

Rainfall in Mexico by month

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

In terms of precipitation, rainfall in Mexico 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 when rainfall is around 0.0 in.

Temperature in Mexico by month

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

If weather is an important factor for your trip to Mexico, 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

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 May 1, 2025.
See what other customers who have flown with Delta, Alaska Airlines and Southwest from Ontario to Mexico have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

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
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

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.
Alaska Airlines
8.0
Very good
9,972 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

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.
Southwest
8.0
Very good
4,294 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

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.
Aeromexico
7.5
Good
1,698 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

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
8,696 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

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

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 $129. Delta flights start at $133 while deals on British Airways start at $150 one-way.

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

    Most travelers choose Ontario - Cancun, Ontario - Mexico City Benito Juarez or Ontario - Guadalajara Miguel Hidal 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 $400). 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$149Average$459FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$157Average$413FlexibilityNo cancel feeOn-time62%
AeromexicoCheapest$170Average$398FlexibilityNo cancel feeOn-timeN/A
VolarisCheapest$180Average$367FlexibilityNo cancel feeOn-time79%
VivaCheapest$224Average$347FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$271Average$445FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$278Average$486FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$316Average$579FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$361Average$596FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$369Average$643FlexibilityNo cancel feeOn-time63%

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