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$108+ Cheap flights from Mexico to Ontario (ONT)

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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
MEX — ONT
ago. 9 — ago. 161
sáb. 8/9
sáb. 8/16
1 adult, Economy
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Cheap flight deals from Mexico to Ontario

Keep the following information in mind while searching for Mexico to Ontario flight deals. Data was last updated agosto 4, 2025.

Round-trip from

$195
(Expedia)

One-way from

$108
(Mytrip)

Popular in

December

Cheapest in

March

Average price

$318

Good round-trip deal

$117 or less

Good one-way deal

$114 or less
From Mexico to Ontario
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One-way flight from Mexico to Ontario
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Highest demand for flights based on searches. 11% potential increase in price ($40 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Mexico to Ontario.
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Price to beat on a one-way flight from Mexico to Ontario.
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Find flight deals from Mexico to Ontario

Cheapest flights from Mexico to Ontario
Explore the most affordable flight options available from Mexico to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 4, 2025.

This Expedia deal was found by Cheapflights users on 8/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/283:54 pmSJD - ONT
Nonstop2h 25mVolaris
dom. 8/3112:40 pmONT - SJD
Nonstop2h 24mVolaris
Deal found 8/2$195
This Frontier deal was found by Cheapflights users on 8/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/209:04 pmGDL - ONT
Nonstop3h 03mFrontier
dom. 8/249:11 pmONT - GDL
Nonstop3h 05mFrontier
Deal found 8/2$271
This Mytrip deal was found by Cheapflights users on 8/4. 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.
mié. 9/249:04 pmGDL - ONT
Nonstop3h 09mVolaris
jue. 10/212:40 pmONT - GDL
2 stops14h 12mVolaris
Deal found 8/4$275
This Booking.com deal was found by Cheapflights users on 8/4. 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.
jue. 9/48:43 amBJX - ONT
Nonstop3h 17mVolaris
lun. 9/811:59 pmONT - BJX
Nonstop3h 01mVolaris
Deal found 8/4$279
This Mytrip deal was found by Cheapflights users on 8/4. 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.
jue. 9/185:51 pmMTY - ONT
1 stop6h 22mVolaris
jue. 9/259:11 pmONT - MTY
1 stop9h 23mVolaris
Deal found 8/4$296
This United Airlines deal was found by Cheapflights users on 8/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/146:40 amGDL - ONT
1 stop15h 57mUnited Airlines
lun. 8/256:04 amONT - GDL
1 stop14h 30mUnited Airlines
Deal found 8/2$299
This Delta deal was found by Cheapflights users on 8/4. 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.
vie. 8/223:15 pmGDL - ONT
1 stop9h 25mDelta
sáb. 9/66:05 amONT - GDL
1 stop6h 30mDelta
Deal found 8/4$301
This Kiwi.com deal was found by Cheapflights users on 8/1. 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.
dom. 9/149:04 pmGDL - ONT
Nonstop3h 09mMultiple Airlines
mar. 10/78:00 amONT - GDL
1 stop8h 08mMultiple Airlines
Deal found 8/1$303
This United Airlines deal was found by Cheapflights users on 8/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/1812:20 pmCUN - ONT
1 stop12h 10mUnited Airlines
lun. 10/66:00 amONT - CUN
1 stop11h 20mUnited Airlines
Deal found 8/1$305
This United Airlines deal was found by Cheapflights users on 8/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/281:12 pmSJD - ONT
1 stop7h 31mUnited Airlines
dom. 8/316:50 pmONT - SJD
2 stops18h 00mUnited Airlines
Deal found 8/2$318
This Aeromexico deal was found by Cheapflights users on 8/2. 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.
jue. 8/281:03 pmSJD - ONT
1 stop9h 37mAeromexico
dom. 8/316:05 amONT - SJD
1 stop5h 30mAeromexico
Deal found 8/2$321
This United Airlines deal was found by Cheapflights users on 8/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/412:40 pmAGU - ONT
1 stop9h 45mUnited Airlines
lun. 9/86:04 amONT - AGU
1 stop12h 23mUnited Airlines
Deal found 8/2$328

Cheapflights Fare Finder

 
Customize your flight search to find flights from Mexico to Ontario 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 agosto 4, 2025.
Use the filters below to find and compare flights from Mexico to Ontario that are best for you.

Fly from

Mexico

Fly to

Ontario

Route

Depart

Return

Price

San José del CaboOntario

SJD - ONT

SJDONT

San José del Cabo Los Cabos

jue. 8/28

3:54 pm-6:19 pm

Nonstop2h 25m

Ontario

dom. 8/31

12:40 pm-3:04 pm

Nonstop2h 24m

$195

GuadalajaraOntario

GDL - ONT

GDLONT

Guadalajara Miguel Hidal

mié. 8/20

9:04 pm-11:07 pm

Nonstop3h 03m

Ontario

dom. 8/24

9:11 pm-1:16 am

Nonstop3h 05m

$271

GuadalajaraOntario

GDL - ONT

GDLONT

Guadalajara Miguel Hidal

mié. 9/24

9:04 pm-11:13 pm

Nonstop3h 09m

Ontario

jue. 10/2

12:40 pm-3:52 am

2 stops14h 12m

$275

LeónOntario

BJX - ONT

BJXONT

León Del Bajio

jue. 9/4

8:43 am-11:00 am

Nonstop3h 17m

Ontario

lun. 9/8

11:59 pm-4:00 am

Nonstop3h 01m

$279

MonterreyOntario

MTY - ONT

MTYONT

Monterrey Gen Mariano Escobedo

jue. 9/18

5:51 pm-11:13 pm

1 stop6h 22m

Ontario

jue. 9/25

9:11 pm-7:34 am

1 stop9h 23m

$296

GuadalajaraOntario

GDL - ONT

GDLONT

Guadalajara Miguel Hidal

jue. 8/14

6:40 am-9:37 pm

1 stop15h 57m

Ontario

lun. 8/25

6:04 am-9:34 pm

1 stop14h 30m

$299

GuadalajaraOntario

GDL - ONT

GDLONT

Guadalajara Miguel Hidal

vie. 8/22

3:15 pm-11:40 pm

1 stop9h 25m

Ontario

sáb. 9/6

6:05 am-1:35 pm

1 stop6h 30m

$301

GuadalajaraOntario

GDL - ONT

GDLONT

Guadalajara Miguel Hidal

dom. 9/14

9:04 pm-11:13 pm

Nonstop3h 09m

Ontario

mar. 10/7

8:00 am-5:08 pm

1 stop8h 08m

$303

CancúnOntario

CUN - ONT

CUNONT

Cancun

jue. 9/18

12:20 pm-10:30 pm

1 stop12h 10m

Ontario

lun. 10/6

6:00 am-7:20 pm

1 stop11h 20m

$305

San José del CaboOntario

SJD - ONT

SJDONT

San José del Cabo Los Cabos

jue. 8/28

1:12 pm-8:43 pm

1 stop7h 31m

Ontario

dom. 8/31

6:50 pm-12:50 pm

2 stops18h 00m

$318

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/3

Showing 1-10 of 60 results
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Best time to book a flight from Mexico to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Mexico 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 Mexico to Ontario

What is the cheapest month to book a flight from Mexico to Ontario?

Currently, August is the cheapest month in which you can book a flight from Mexico to Ontario (average of $246). Flying from Mexico to Ontario in March is currently the most expensive (average of $328). 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 MX to ONT?

Find hourly flight availability from Mexico to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated agosto 4, 2025.

When flying from Mexico to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated agosto 4, 2025.
Read through reviews of airlines operating flights from Mexico to Ontario, such as Alaska Airlines, Delta, and Hawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Delta
8.0
Very good
7,987 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Hawaiian Airlines
7.8
Good
2,620 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
LATAM Airlines
7.5
Good
1,830 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Aeromexico
7.5
Good
1,718 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

Related info for your journey

Find useful and relevant information for your journey from Mexico to Ontario. 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 into for flights to Ontario from Mexico?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Mexico. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

  • What are the cheapest airlines to fly from Mexico to Ontario one-way?

    The cheapest airlines for a one-way flight from Mexico to Ontario are Volaris ($108), Frontier ($176), and United Airlines ($202).

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

    While some choose either Mexico City Benito Juarez - Ontario or León Del Bajio - Ontario, Guadalajara Miguel Hidal - Ontario is the most popular route from Mexico to Ontario.

  • Can I find deals for flights from Mexico to Ontario that include hotel bookings?

    Yes. In addition to deals on Mexico to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Mexico to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Mexico to Ontario.

  • Can I find deals for business class flights from Mexico to Ontario?

    Yes. Cheapflights offers flight deals from Mexico to Ontario 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 Mexico to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Mexico to Ontario (average of $246). Flying from Mexico to Ontario in March is currently the most expensive (average of $328). 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 Mexico to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Mexico to Ontario

Discover the top 2 airlines that operate flights from Mexico to Ontario. 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 agosto 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
VolarisCheapest$226Average$336FlexibilityNo cancel feeOn-time79%
FrontierCheapest$245Average$307FlexibilityNo cancel feeOn-time62%

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