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Ontario

$128+ 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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
MEX — ONT
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap 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 January 21, 2026.

This CheapOair deal was found by Cheapflights users on 1/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/15:06 pm
SJD
-
ONT
Nonstop2h 38m
Volaris
Wed 2/1112:50 pm
ONT
-
SJD
Nonstop2h 22m
Volaris
Deal found 1/21$186
This CheapOair deal was found by Cheapflights users on 1/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/129:27 am
BJX
-
ONT
Nonstop3h 33m
Volaris
Mon 2/1611:59 pm
ONT
-
BJX
Nonstop3h 05m
Volaris
Deal found 1/20$198
This CheapOair deal was found by Cheapflights users on 1/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/178:27 am
BJX
-
ONT
Nonstop3h 33m
Volaris
Mon 4/612:59 am
ONT
-
BJX
Nonstop3h 01m
Volaris
Deal found 1/20$209
This United Airlines deal was found by Cheapflights users on 1/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/173:50 pm
BJX
-
ONT
2 stops22h 58m
United Airlines
Tue 3/31:45 pm
ONT
-
BJX
2 stops20h 09m
United Airlines
Deal found 1/21$241
This United Airlines deal was found by Cheapflights users on 1/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/133:46 pm
SJD
-
ONT
1 stop21h 57m
United Airlines
Mon 2/165:00 am
ONT
-
SJD
1 stop7h 10m
United Airlines
Deal found 1/21$253
This United Airlines deal was found by Cheapflights users on 1/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/52:30 pm
GDL
-
ONT
2 stops20h 11m
United Airlines
Wed 5/136:00 am
ONT
-
GDL
1 stop14h 34m
United Airlines
Deal found 1/21$253
This Delta deal was found by Cheapflights users on 1/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/44:15 pm
GDL
-
ONT
1 stop9h 34m
Delta
Wed 3/116:00 am
ONT
-
GDL
1 stop7h 22m
Delta
Deal found 1/20$254
This eDestinos deal was found by Cheapflights users on 1/20. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/114:02 pm
SJD
-
ONT
Nonstop2h 25m
Volaris
Fri 5/112:40 pm
ONT
-
SJD
Nonstop2h 24m
Volaris
Deal found 1/20$257
This United Airlines deal was found by Cheapflights users on 1/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/25:45 am
GDL
-
ONT
2 stops37h 56m
United Airlines
Tue 3/106:15 am
ONT
-
GDL
2 stops38h 20m
United Airlines
Deal found 1/20$257
This United Airlines deal was found by Cheapflights users on 1/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/35:45 am
GDL
-
ONT
1 stop18h 14m
United Airlines
Tue 2/108:00 am
ONT
-
GDL
1 stop26h 36m
United Airlines
Deal found 1/20$260
This United Airlines deal was found by Cheapflights users on 1/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/85:00 am
BJX
-
ONT
2 stops16h 36m
United Airlines
Sun 4/126:05 am
ONT
-
BJX
1 stop6h 38m
United Airlines
Deal found 1/20$262
This United Airlines deal was found by Cheapflights users on 1/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/115:00 am
GDL
-
ONT
1 stop18h 36m
United Airlines
Sat 5/236:02 am
ONT
-
GDL
1 stop14h 32m
United Airlines
Deal found 1/20$264

Find flight deals from Mexico to Ontario

Keep the following information in mind while searching for Mexico to Ontario flight deals. Data was last updated January 21, 2026.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$186
(CheapOair)

One-way from

$128
(Mytrip)

Popular in

December

Cheapest in

March

Average price

$298

Good round-trip deal

$272 or less

Good one-way deal

$135 or less
Provider with most accurate pricing for Mexico City Benito Juarez-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Mexico City Benito Juarez-Los Angeles flights.
Search Deals
From Mexico to Ontario
Search Deals
One-way flight from Mexico to Ontario
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Mexico to Ontario.
Search Deals
Price to beat on a one-way flight from Mexico to Ontario.
Search Deals

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 January 21, 2026.
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

Sat 1/31

5:06 pm-6:44 pm

Nonstop2h 38m

Ontario

Tue 2/10

12:50 pm-4:12 pm

Nonstop2h 22m

$186

San José del CaboOntario

SJD - ONT

SJDONT

San José del Cabo Los Cabos

Fri 2/20

5:06 pm-6:44 pm

Nonstop2h 38m

Ontario

Mon 2/23

12:50 pm-4:12 pm

Nonstop2h 22m

$186

San José del CaboOntario

SJD - ONT

SJDONT

San José del Cabo Los Cabos

Sun 2/1

5:06 pm-6:44 pm

Nonstop2h 38m

Ontario

Wed 2/11

12:50 pm-4:12 pm

Nonstop2h 22m

$186

San José del CaboOntario

SJD - ONT

SJDONT

San José del Cabo Los Cabos

Sun 2/1

5:06 pm-6:44 pm

Nonstop2h 38m

Ontario

Wed 2/4

12:50 pm-4:12 pm

Nonstop2h 22m

$186

San José del CaboOntario

SJD - ONT

SJDONT

San José del Cabo Los Cabos

Mon 2/2

5:06 pm-6:44 pm

Nonstop2h 38m

Ontario

Thu 2/5

12:50 pm-4:12 pm

Nonstop2h 22m

$186

LeónOntario

BJX - ONT

BJXONT

León Del Bajio

Tue 3/17

8:27 am-11:00 am

Nonstop3h 33m

Ontario

Mon 4/6

12:59 am-5:00 am

Nonstop3h 01m

$209

LeónOntario

BJX - ONT

BJXONT

León Del Bajio

Tue 2/17

3:50 pm-12:48 pm

2 stops22h 58m

Ontario

Tue 3/3

1:45 pm-11:54 am

2 stops20h 09m

$241

LeónOntario

BJX - ONT

BJXONT

León Del Bajio

Tue 3/17

5:05 am-5:41 pm

2 stops13h 36m

Ontario

Tue 4/7

6:05 am-1:43 pm

1 stop6h 38m

$241

LeónOntario

BJX - ONT

BJXONT

León Del Bajio

Thu 2/12

9:27 am-11:00 am

Nonstop3h 33m

Ontario

Mon 2/16

11:59 pm-5:04 am

Nonstop3h 05m

$242

GuadalajaraOntario

GDL - ONT

GDLONT

Guadalajara Miguel Hidal

Tue 5/5

3:50 pm-11:44 pm

1 stop8h 54m

Ontario

Wed 5/13

6:00 am-1:25 pm

1 stop6h 25m

$253

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

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, March is the cheapest month in which you can book a flight from Mexico to Ontario (average of $86). Flying from Mexico to Ontario in April is currently the most expensive (average of $161). 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 January 21, 2026.

One of the essential ways to save on airfare from Mexico to Ontario is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 37% on airfare.

How often are flights from Mexico to Ontario delayed?

About 12% of weekly flights between Mexico and Ontario have experienced delays in the past year, with the average delay time being 121 minutes.

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

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

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

Wednesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Mexico to Ontario 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 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 January 21, 2026.
Read through reviews of airlines operating flights from Mexico to Ontario, such as Volaris and Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Volaris
6.6
Okay
1,172 reviews

Food

5.3

Crew

7.3

Overall

6.6

Comfort

6.3

Boarding

6.6

Entertainment

4.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

MEX - LAS

3 hours delayed! Very bad experience! This airline is going down terrible!
Volaris
6.6
Okay
1,172 reviews
Volaris
6.6
Okay
1,172 reviews

Food

5.3

Crew

7.3

Overall

6.6

Comfort

6.3

Boarding

6.6

Entertainment

4.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

MEX - LAS

3 hours delayed! Very bad experience! This airline is going down terrible!
Frontier
5.7
Fair
3,057 reviews
Volaris
6.6
Okay
1,172 reviews

Food

5.3

Crew

7.3

Overall

6.6

Comfort

6.3

Boarding

6.6

Entertainment

4.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

MEX - LAS

3 hours delayed! Very bad experience! This airline is going down terrible!

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.

  • How long is the flight from Mexico to Ontario?

    Departing from Mexico to Ontario will take you 2h 38m. Mexico and Ontario are separated by a distance of 891 mi. This flight may include one or multiple stops.

  • 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 ($105), United Airlines ($159), and Frontier ($165).

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

    While some choose either Guadalajara Miguel Hidal - Ontario or Cancun - Ontario, Mexico City Benito Juarez - 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, March is the cheapest month in which you can book a flight from Mexico to Ontario (average of $86). Flying from Mexico to Ontario in April is currently the most expensive (average of $161). 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 January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
VolarisCheapest$149Average$324FlexibilityNo cancel feeOn-time79%
FrontierCheapest$197Average$320FlexibilityNo cancel feeOn-time62%

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