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$180+ Cheap flights from Monterrey (MTY) 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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
MTY — ONT
Jul 16 — Jul 231
Wed 7/16
Wed 7/23
1 adult, Economy
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Cheap flight deals from Monterrey to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Monterrey (MTY) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 11, 2025.

Round-trip from

$308
(Flightnetwork)

One-way from

$180
(Trip.com)

Popular in

June

Cheapest in

January

Average price

$264
From Monterrey Gen Mariano Escobedo to Ontario
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One-way flight from Monterrey Gen Mariano Escobedo to Ontario
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Highest demand for flights based on searches. 7% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Monterrey to Ontario

Cheapest flights from Monterrey to Ontario
Explore the most affordable flight options available from Monterrey to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 11, 2025.

This Flightnetwork deal was found by Cheapflights users on 7/10. 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.
Sun 8/248:15 amMTY - ONT
1 stop12h 06mVolaris
Sat 8/301:09 amONT - MTY
1 stop7h 38mVolaris
Deal found 7/10$308
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 7/246:05 amMTY - ONT
1 stop5h 55mMultiple Airlines
Thu 7/315:14 pmONT - MTY
2 stops13h 42mMultiple Airlines
Deal found 7/10$420
This United Airlines deal was found by Cheapflights users on 7/10. 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.
Thu 9/1112:25 pmMTY - ONT
1 stop11h 05mUnited Airlines
Sun 9/146:50 pmONT - MTY
2 stops12h 47mUnited Airlines
Deal found 7/10$465

Cheapflights Fare Finder

Customize your flight search to find flights from Monterrey 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 July 11, 2025.
Use the filters below to find and compare flights from Monterrey to Ontario that are best for you.

Fly from

Monterrey

Fly to

Ontario

Route

Depart

Return

Price

MonterreyOntario

MTY - ONT

MTYONT

Monterrey Gen Mariano Escobedo

Sun 8/24

8:15 am-7:21 pm

1 stop12h 06m

Ontario

Sun 8/31

9:11 pm-7:34 am

1 stop9h 23m

$308

MonterreyOntario

MTY - ONT

MTYONT

Monterrey Gen Mariano Escobedo

Thu 7/24

6:05 am-11:00 am

1 stop5h 55m

Ontario

Thu 7/31

5:14 pm-7:56 am

2 stops13h 42m

$420

MonterreyOntario

MTY - ONT

MTYONT

Monterrey Gen Mariano Escobedo

Thu 9/11

12:25 pm-10:30 pm

1 stop11h 05m

Ontario

Sun 9/14

6:50 pm-8:37 am

2 stops12h 47m

$465

MonterreyOntario

MTY - ONT

MTYONT

Monterrey Gen Mariano Escobedo

Wed 8/27

5:51 pm-11:07 pm

1 stop6h 16m

$180

MonterreyOntario

MTY - ONT

MTYONT

Monterrey Gen Mariano Escobedo

Wed 8/27

10:00 am-8:33 pm

2 stops11h 33m

$321

MonterreyOntario

MTY - ONT

MTYONT

Monterrey Gen Mariano Escobedo

Mon 7/21

8:30 am-7:18 pm

2 stops11h 48m

$363

MonterreyOntario

MTY - ONT

MTYONT

Monterrey Gen Mariano Escobedo

Tue 7/22

7:55 am-4:14 pm

2 stops9h 19m

$576

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/8

Best time to book a flight from Monterrey to Ontario

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

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

Currently, August is the cheapest month in which you can book a flight from Monterrey to Ontario (average of $246). Flying from Monterrey 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.

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 July 11, 2025.
Get a feel of what it's like to fly with United Airlines, American Airlines, and Volaris from Monterrey to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,846 reviews

Crew

8.1

Food

6.6

Comfort

7.3

Boarding

7.7

Entertainment

7.0

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
United Airlines
7.4
Good
8,846 reviews
United Airlines
7.4
Good
8,846 reviews

Crew

8.1

Food

6.6

Comfort

7.3

Boarding

7.7

Entertainment

7.0

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,846 reviews

Crew

8.1

Food

6.6

Comfort

7.3

Boarding

7.7

Entertainment

7.0

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
Volaris
6.6
Okay
1,163 reviews
United Airlines
7.4
Good
8,846 reviews

Crew

8.1

Food

6.6

Comfort

7.3

Boarding

7.7

Entertainment

7.0

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

Related info for your journey

Find useful and relevant information for your journey from Monterrey to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Monterrey to Ontario round-trip?

    Volaris, at $308, was found to be the cheapest airline from Monterrey to Ontario. An alternate airline flying to your destination would be United Airlines.

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

    To fly one-way, consider booking your trip with Volaris, which is currently one of the cheapest options available, starting at $180. United Airlines flights start at $321 while deals on American Airlines start at $576 one-way.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Monterrey to Ontario (average of $246). Flying from Monterrey 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.

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