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Monterrey

$113+ Cheap flights from Ontario (ONT) to Monterrey (MTY)

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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MTY
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Ontario to Monterrey

Cheapest flights from Ontario to Monterrey
Explore the most affordable flight options available from Ontario to Monterrey. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This Expedia deal was found by Cheapflights users on 12/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1511:59 pmONT - MTY
1 stop7h 15mVolaris
Thu 12/2512:38 pmMTY - ONT
1 stop12h 14mVolaris
Deal found 12/9$397
This Trip.com deal was found by Cheapflights users on 12/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/911:02 pmONT - MTY
1 stop6h 32mVolaris
Tue 12/166:00 amMTY - ONT
1 stop7h 00mVolaris
Deal found 12/8$398
This Trip.com deal was found by Cheapflights users on 12/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1611:02 pmONT - MTY
1 stop6h 32mVolaris
Wed 12/245:00 pmMTY - ONT
1 stop7h 52mVolaris
Deal found 12/10$428
This Trip.com deal was found by Cheapflights users on 12/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1011:59 pmONT - MTY
1 stop7h 15mVolaris
Wed 12/1712:38 pmMTY - ONT
1 stop9h 33mVolaris
Deal found 12/9$458
This Trip.com deal was found by Cheapflights users on 12/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1111:02 pmONT - MTY
1 stop6h 32mVolaris
Thu 12/186:00 amMTY - ONT
1 stop7h 00mVolaris
Deal found 12/10$471
This Trip.com deal was found by Cheapflights users on 12/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1411:02 pmONT - MTY
1 stop6h 32mVolaris
Thu 12/255:00 pmMTY - ONT
1 stop7h 52mVolaris
Deal found 12/10$498
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Wed 12/106:00 amONT - MTY
1 stop12h 36mUnited Airlines
Wed 12/176:00 pmMTY - ONT
2 stops20h 38mUnited Airlines
Deal found 12/10$499
This Expedia deal was found by Cheapflights users on 12/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1211:59 pmONT - MTY
1 stop7h 15mVolaris
Fri 12/262:55 pmMTY - ONT
1 stop7h 16mVolaris
Deal found 12/10$500
This United Airlines deal was found by Cheapflights users on 12/10. 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 12/115:05 amONT - MTY
2 stops8h 53mUnited Airlines
Thu 12/188:50 amMTY - ONT
2 stops14h 17mUnited Airlines
Deal found 12/10$504
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Fri 12/126:00 amONT - MTY
1 stop27h 51mUnited Airlines
Mon 12/158:50 amMTY - ONT
1 stop14h 59mUnited Airlines
Deal found 12/10$510
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Mon 12/156:00 amONT - MTY
1 stop13h 45mUnited Airlines
Wed 12/244:54 pmMTY - ONT
1 stop6h 58mUnited Airlines
Deal found 12/10$532

Find flight deals from Ontario to Monterrey

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Monterrey (MTY). 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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$292
(Mytrip)

One-way from

$113
(Mytrip)

Popular in

December

Cheapest in

January

Average price

$387
Provider with most accurate pricing for Ontario-Monterrey Gen Mariano Escobedo flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Monterrey Gen Mariano Escobedo flights.
Search Deals
From Ontario to Monterrey Gen Mariano Escobedo
Search Deals
One-way flight from Ontario to Monterrey Gen Mariano Escobedo
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Monterrey 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 December 12, 2025.
Use the filters below to find and compare flights from Ontario to Monterrey that are best for you.

Fly from

Ontario

Fly to

Monterrey

Route

Depart

Return

Price

OntarioMonterrey

ONT - MTY

ONTMTY

Ontario

Sat 1/17

11:02 pm-7:34 am

1 stop6h 32m

Monterrey Gen Mariano Escobedo

Sat 1/24

6:00 am-11:00 am

1 stop7h 00m

$297

OntarioMonterrey

ONT - MTY

ONTMTY

Ontario

Sun 3/29

12:55 am-12:01 pm

1 stop10h 06m

Monterrey Gen Mariano Escobedo

Wed 4/1

2:37 pm-7:23 pm

1 stop5h 46m

$325

OntarioMonterrey

ONT - MTY

ONTMTY

Ontario

Sat 3/21

11:34 pm-7:34 am

1 stop7h 00m

Monterrey Gen Mariano Escobedo

Tue 3/31

12:38 pm-7:23 pm

1 stop7h 45m

$361

OntarioMonterrey

ONT - MTY

ONTMTY

Ontario

Thu 1/8

6:00 am-9:45 pm

2 stops13h 45m

Monterrey Gen Mariano Escobedo

Fri 1/16

4:50 pm-9:58 pm

1 stop7h 08m

$408

OntarioMonterrey

ONT - MTY

ONTMTY

Ontario

Mon 3/30

11:58 pm-9:28 am

1 stop8h 30m

Monterrey Gen Mariano Escobedo

Wed 4/1

1:32 pm-7:09 pm

1 stop6h 37m

$422

OntarioMonterrey

ONT - MTY

ONTMTY

Ontario

Sat 3/7

11:34 pm-7:34 am

1 stop6h 00m

Monterrey Gen Mariano Escobedo

Fri 3/13

2:55 pm-8:11 pm

1 stop6h 16m

$435

OntarioMonterrey

ONT - MTY

ONTMTY

Ontario

Fri 1/23

11:59 pm-9:14 am

1 stop7h 15m

Monterrey Gen Mariano Escobedo

Mon 1/26

2:55 pm-10:52 pm

1 stop9h 57m

$436

OntarioMonterrey

ONT - MTY

ONTMTY

Ontario

Tue 1/6

1:53 pm-4:20 pm

1 stop24h 27m

Monterrey Gen Mariano Escobedo

Wed 1/14

6:00 am-11:18 am

1 stop7h 18m

$495

OntarioMonterrey

ONT - MTY

ONTMTY

Ontario

Tue 3/24

1:04 am-2:14 pm

1 stop12h 10m

Monterrey Gen Mariano Escobedo

Sun 3/29

12:38 pm-7:23 pm

1 stop7h 45m

$499

OntarioMonterrey

ONT - MTY

ONTMTY

Ontario

Sat 4/11

6:00 am-3:02 pm

1 stop8h 02m

Monterrey Gen Mariano Escobedo

Sat 4/18

12:10 pm-8:46 pm

2 stops9h 36m

$500

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 19 results
1
2

Compare providers for flights from Ontario to Monterrey

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Monterrey in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Monterrey flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Monterrey flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ontario-Monterrey flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Monterrey flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Monterrey flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Monterrey

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

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

Currently, December is the cheapest month in which you can book a flight from Ontario to Monterrey (average of $39). Flying from Ontario to Monterrey in November is currently the most expensive (average of $258). 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 Ontario to Monterrey. 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 Ontario to Monterrey?

    There are many flights that can get you from Ontario to Monterrey in 6h 32m. Fly via Volaris or United Airlines to get the fastest option. The distance between Ontario and Monterrey is about 1190 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

    Currently, December is the cheapest month in which you can book a flight from Ontario to Monterrey (average of $39). Flying from Ontario to Monterrey in November is currently the most expensive (average of $258). 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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