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$190+ 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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
MTY — ONT
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 September 11, 2025.

Round-trip from

$293
(OneTravel)

One-way from

$190
(OneTravel)

Popular in

June

Cheapest in

January

Average price

$236
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 ($19 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 September 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 September 11, 2025.

This OneTravel deal was found by Cheapflights users on 9/9. 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 OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/245:51 pmMTY - ONT
1 stop6h 22mVolaris
Fri 10/319:11 pmONT - MTY
1 stop9h 23mVolaris
Deal found 9/9$293
This OneTravel deal was found by Cheapflights users on 9/11. 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 OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/116:05 amMTY - ONT
1 stop5h 55mVolaris
Sun 10/121:09 amONT - MTY
1 stop9h 48mVolaris
Deal found 9/11$296
This Mytrip deal was found by Cheapflights users on 9/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/166:05 amMTY - ONT
1 stop5h 55mVolaris
Fri 10/39:11 pmONT - MTY
1 stop9h 23mVolaris
Deal found 9/10$300
This OneTravel deal was found by Cheapflights users on 9/10. 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 OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/12:55 pmMTY - ONT
1 stop7h 16mVolaris
Thu 12/411:34 pmONT - MTY
1 stop10h 23mVolaris
Deal found 9/10$334
This OneTravel deal was found by Cheapflights users on 9/10. 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 OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1412:38 pmMTY - ONT
1 stop11h 35mVolaris
Mon 9/151:09 amONT - MTY
1 stop7h 38mVolaris
Deal found 9/10$341
This OneTravel deal was found by Cheapflights users on 9/10. 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 OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/25:00 pmMTY - ONT
1 stop8h 12mVolaris
Fri 12/511:34 pmONT - MTY
1 stop6h 00mVolaris
Deal found 9/10$347
This OneTravel deal was found by Cheapflights users on 9/10. 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 OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/112:38 pmMTY - ONT
1 stop9h 33mVolaris
Fri 12/511:34 pmONT - MTY
1 stop10h 23mVolaris
Deal found 9/10$350
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Tue 9/166:05 amMTY - ONT
1 stop5h 55mMultiple Airlines
Fri 10/38:59 pmONT - MTY
2 stops22h 21mMultiple Airlines
Deal found 9/10$366
This Mytrip deal was found by Cheapflights users on 9/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2612:38 pmMTY - ONT
1 stop11h 35mVolaris
Sun 11/211:34 pmONT - MTY
1 stop6h 00mVolaris
Deal found 9/10$371

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 September 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

Sat 10/11

6:05 am-11:00 am

1 stop5h 55m

Ontario

Mon 10/13

9:11 pm-7:34 am

1 stop9h 23m

$296

MonterreyOntario

MTY - ONT

MTYONT

Monterrey Gen Mariano Escobedo

Tue 9/16

6:05 am-11:00 am

1 stop5h 55m

Ontario

Fri 10/3

9:11 pm-7:34 am

1 stop9h 23m

$300

MonterreyOntario

MTY - ONT

MTYONT

Monterrey Gen Mariano Escobedo

Fri 10/24

12:38 pm-11:13 pm

1 stop11h 35m

Ontario

Thu 10/30

1:09 am-11:57 am

1 stop9h 48m

$333

MonterreyOntario

MTY - ONT

MTYONT

Monterrey Gen Mariano Escobedo

Mon 12/1

2:55 pm-8:11 pm

1 stop7h 16m

Ontario

Thu 12/4

11:34 pm-11:57 am

1 stop10h 23m

$334

MonterreyOntario

MTY - ONT

MTYONT

Monterrey Gen Mariano Escobedo

Tue 12/2

5:00 pm-11:12 pm

1 stop8h 12m

Ontario

Fri 12/5

11:34 pm-7:34 am

1 stop6h 00m

$347

MonterreyOntario

MTY - ONT

MTYONT

Monterrey Gen Mariano Escobedo

Tue 9/16

6:05 am-11:00 am

1 stop5h 55m

Ontario

Fri 10/3

8:59 pm-8:20 pm

2 stops22h 21m

$366

MonterreyOntario

MTY - ONT

MTYONT

Monterrey Gen Mariano Escobedo

Sun 10/26

12:38 pm-11:13 pm

1 stop11h 35m

Ontario

Sun 11/2

11:34 pm-7:34 am

1 stop6h 00m

$371

MonterreyOntario

MTY - ONT

MTYONT

Monterrey Gen Mariano Escobedo

Fri 10/24

9:25 pm-11:50 pm

2 stops27h 25m

Ontario

Fri 10/31

9:11 pm-7:30 am

1 stop9h 19m

$376

MonterreyOntario

MTY - ONT

MTYONT

Monterrey Gen Mariano Escobedo

Thu 11/13

2:55 pm-11:12 pm

1 stop10h 17m

Ontario

Tue 11/18

11:59 pm-9:08 pm

2 stops19h 09m

$415

MonterreyOntario

MTY - ONT

MTYONT

Monterrey Gen Mariano Escobedo

Sun 10/26

4:54 pm-11:00 am

1 stop19h 06m

Ontario

Sun 11/2

4:17 pm-7:34 am

2 stops37h 17m

$425

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 20 results
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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.

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.

  • How long is the flight from Monterrey to Ontario?

    For as low as $296, Volaris can have you in Ontario from Monterrey in 5h 55m. The distance from Monterrey to Ontario is about 1190 mi.

  • 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.

See more FAQs

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