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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. 7 — jul. 141
lun. 7/7
lun. 7/14
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 julio 2, 2025.

Round-trip from

$195
(Orbitz)

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 julio 2, 2025.

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.
mié. 7/912:40 pmONT - BJX
Nonstop3h 01mVolaris
sáb. 7/128:43 amBJX - ONT
Nonstop3h 17mVolaris
Deal found 6/30$186
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 7/2812:40 pmONT - SJD
Nonstop2h 24mVolaris
sáb. 8/163:54 pmSJD - ONT
Nonstop2h 25mVolaris
Deal found 6/30$195
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/79:11 pmONT - GDL
Nonstop3h 05mVolaris
mar. 8/129:10 pmGDL - ONT
Nonstop3h 03mVolaris
Deal found 7/2$267
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 7/2812:40 pmONT - SJD
Nonstop2h 24mMultiple Airlines
sáb. 8/1612:06 pmSJD - ONT
1 stop11h 44mMultiple Airlines
Deal found 7/1$289
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.
lun. 7/1412:59 amONT - CUN
1 stop13h 21mFrontier
mié. 7/233:25 pmCUN - ONT
1 stop10h 25mFrontier
Deal found 6/30$297
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/2312:40 pmONT - MEX
1 stop10h 05mVolaris
mar. 9/212:00 pmMEX - ONT
1 stop12h 13mVolaris
Deal found 7/1$308
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 7/276:00 amONT - SJD
1 stop5h 37mDelta
vie. 8/112:42 pmSJD - ONT
1 stop11h 00mDelta
Deal found 6/30$312
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.
mar. 9/166:00 amONT - PVR
1 stop7h 45mAeromexico
vie. 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.
lun. 7/147:05 amONT - CUN
1 stop11h 15mAeromexico
jue. 10/212:25 pmCUN - ONT
1 stop8h 50mAeromexico
Deal found 6/30$343
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/46:15 amONT - CUN
1 stop6h 55mAmerican Airlines
mié. 8/137:45 amCUN - ONT
1 stop7h 54mAmerican Airlines
Deal found 6/30$345
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/167:00 amONT - BJX
2 stops20h 46mMultiple Airlines
sáb. 8/238:43 amBJX - ONT
Nonstop3h 17mMultiple Airlines
Deal found 7/1$350
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 7/2110:05 pmONT - CUN
1 stop8h 50mDelta
mié. 7/304:20 pmCUN - ONT
1 stop9h 22mDelta
Deal found 7/1$354

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 julio 2, 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

lun. 7/28

12:40 pm-3:04 pm

Nonstop2h 24m

San José del Cabo Los Cabos

sáb. 8/16

3:54 pm-6:19 pm

Nonstop2h 25m

$195

OntarioGuadalajara

ONT - GDL

ONTGDL

Ontario

jue. 8/7

9:11 pm-1:16 am

Nonstop3h 05m

Guadalajara Miguel Hidal

mar. 8/12

9:10 pm-11:13 pm

Nonstop3h 03m

$267

OntarioLeón

ONT - BJX

ONTBJX

Ontario

mié. 8/20

12:40 pm-4:41 pm

Nonstop3h 01m

León Del Bajio

mar. 8/26

8:43 am-11:00 am

Nonstop3h 17m

$287

OntarioSan José del Cabo

ONT - SJD

ONTSJD

Ontario

lun. 7/28

12:40 pm-3:04 pm

Nonstop2h 24m

San José del Cabo Los Cabos

sáb. 8/16

12:06 pm-11:50 pm

1 stop11h 44m

$289

OntarioCancún

ONT - CUN

ONTCUN

Ontario

lun. 7/14

12:59 am-4:20 pm

1 stop13h 21m

Cancun

mié. 7/23

3:25 pm-11:50 pm

1 stop10h 25m

$297

OntarioMexico City

ONT - MEX

ONTMEX

Ontario

sáb. 8/23

12:40 pm-11:45 pm

1 stop10h 05m

Mexico City Benito Juarez

mar. 9/2

12:00 pm-11:13 pm

1 stop12h 13m

$308

OntarioSan José del Cabo

ONT - SJD

ONTSJD

Ontario

dom. 7/27

6:00 am-11:37 am

1 stop5h 37m

San José del Cabo Los Cabos

vie. 8/1

12:42 pm-11:42 pm

1 stop11h 00m

$312

OntarioPuerto Vallarta

ONT - PVR

ONTPVR

Ontario

mar. 9/16

6:00 am-2:45 pm

1 stop7h 45m

Puerto Vallarta Ordaz

vie. 9/26

3:55 pm-11:42 pm

1 stop8h 47m

$318

OntarioCancún

ONT - CUN

ONTCUN

Ontario

lun. 7/14

7:05 am-8:20 pm

1 stop11h 15m

Cancun

jue. 10/2

12:25 pm-7:15 pm

1 stop8h 50m

$343

OntarioCancún

ONT - CUN

ONTCUN

Ontario

lun. 8/4

6:15 am-3:10 pm

1 stop6h 55m

Cancun

mié. 8/13

7:45 am-1:39 pm

1 stop7h 54m

$345

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

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 julio 2, 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 julio 2, 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

Overall

8.0

Crew

8.5

Comfort

7.8

Food

7.1

Boarding

8.1

Entertainment

7.1

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

Overall

8.0

Crew

8.5

Comfort

7.8

Food

7.1

Boarding

8.1

Entertainment

7.1

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
4,272 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Food

7.1

Boarding

8.1

Entertainment

7.1

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
7,975 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Food

7.1

Boarding

8.1

Entertainment

7.1

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

Overall

8.0

Crew

8.5

Comfort

7.8

Food

7.1

Boarding

8.1

Entertainment

7.1

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

Overall

8.0

Crew

8.5

Comfort

7.8

Food

7.1

Boarding

8.1

Entertainment

7.1

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 Frontier 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 julio 2, 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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