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$197+ 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 11/20. Fares are subject to change and may not be available on all flights or dates of travel.
MTY — ONT
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
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 October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$305
(Mytrip)

One-way from

$197
(Trip.com)

Popular in

June

Cheapest in

January

Average price

$257
Provider with most accurate pricing for Monterrey Gen Mariano Escobedo-Ontario flight deals.
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Provider most trusted by Cheapflights users for Monterrey Gen Mariano Escobedo-Ontario flights.
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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 October 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 October 29, 2025.

This OneTravel deal was found by Cheapflights users on 10/28. 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 11/16:05 amMTY - ONT
1 stop5h 55mVolaris
Mon 11/1011:02 pmONT - MTY
1 stop10h 55mVolaris
Deal found 10/28$334
This OneTravel deal was found by Cheapflights users on 10/27. 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 11/1412:38 pmMTY - ONT
1 stop12h 14mVolaris
Mon 11/1711:02 pmONT - MTY
1 stop10h 55mVolaris
Deal found 10/27$337
This Trip.com deal was found by Cheapflights users on 10/27. 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 11/276:00 amMTY - ONT
1 stop7h 00mVolaris
Wed 12/312:42 amONT - MTY
1 stop11h 32mVolaris
Deal found 10/27$344
This CheapOair deal was found by Cheapflights users on 10/29. 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.
Mon 11/105:00 pmMTY - ONT
1 stop7h 52mVolaris
Fri 11/1411:59 pmONT - MTY
1 stop7h 15mVolaris
Deal found 10/29$351
This Trip.com deal was found by Cheapflights users on 10/27. 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.
Sat 11/85:00 pmMTY - ONT
1 stop7h 52mVolaris
Thu 11/1312:42 amONT - MTY
1 stop11h 32mVolaris
Deal found 10/27$355
This Trip.com deal was found by Cheapflights users on 10/28. 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 12/255:00 pmMTY - ONT
1 stop7h 52mVolaris
Thu 1/112:42 amONT - MTY
1 stop9h 15mVolaris
Deal found 10/28$357
This OneTravel deal was found by Cheapflights users on 10/29. 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 11/16:05 amMTY - ONT
1 stop5h 55mVolaris
Sun 11/212:42 amONT - MTY
1 stop9h 15mVolaris
Deal found 10/29$369
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Fri 11/148:25 amMTY - ONT
1 stop28h 35mMultiple Airlines
Mon 11/171:46 pmONT - MTY
1 stop18h 24mMultiple Airlines
Deal found 10/26$407

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 October 29, 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

Mon 11/10

5:00 pm-10:52 pm

1 stop7h 52m

Ontario

Fri 11/14

11:59 pm-9:14 am

1 stop7h 15m

$351

MonterreyOntario

MTY - ONT

MTYONT

Monterrey Gen Mariano Escobedo

Fri 3/27

2:55 pm-11:14 pm

1 stop9h 19m

Ontario

Sat 4/4

1:04 am-11:57 am

1 stop9h 53m

$353

MonterreyOntario

MTY - ONT

MTYONT

Monterrey Gen Mariano Escobedo

Thu 12/25

5:00 pm-10:52 pm

1 stop7h 52m

Ontario

Thu 1/1

12:42 am-11:57 am

1 stop9h 15m

$357

MonterreyOntario

MTY - ONT

MTYONT

Monterrey Gen Mariano Escobedo

Sat 3/28

6:05 am-11:00 am

1 stop5h 55m

Ontario

Sat 4/4

1:04 am-2:14 pm

1 stop12h 10m

$368

MonterreyOntario

MTY - ONT

MTYONT

Monterrey Gen Mariano Escobedo

Sat 11/8

5:00 pm-10:52 pm

1 stop7h 52m

Ontario

Fri 11/14

11:02 pm-7:34 am

1 stop6h 32m

$370

MonterreyOntario

MTY - ONT

MTYONT

Monterrey Gen Mariano Escobedo

Tue 2/17

6:00 am-11:00 am

1 stop7h 00m

Ontario

Thu 2/19

11:34 pm-11:57 am

1 stop10h 23m

$418

MonterreyOntario

MTY - ONT

MTYONT

Monterrey Gen Mariano Escobedo

Sat 12/6

6:00 am-11:00 am

1 stop7h 00m

Ontario

Thu 12/11

11:34 pm-4:18 pm

1 stop14h 44m

$458

MonterreyOntario

MTY - ONT

MTYONT

Monterrey Gen Mariano Escobedo

Wed 3/11

5:00 am-12:17 pm

1 stop8h 17m

Ontario

Tue 4/7

6:00 am-3:50 pm

1 stop8h 50m

$467

MonterreyOntario

MTY - ONT

MTYONT

Monterrey Gen Mariano Escobedo

Mon 3/16

7:50 am-10:37 pm

2 stops15h 47m

Ontario

Mon 4/6

4:15 pm-10:48 am

2 stops17h 33m

$467

MonterreyOntario

MTY - ONT

MTYONT

Monterrey Gen Mariano Escobedo

Mon 3/16

3:54 pm-10:35 pm

1 stop7h 41m

Ontario

Thu 4/2

6:02 am-5:18 pm

1 stop10h 16m

$467

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 20 results
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Compare providers for flights from Monterrey to Ontario

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 Monterrey to Ontario in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*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 Monterrey-Ontario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Monterrey-Ontario flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Monterrey-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Monterrey-Ontario 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 Monterrey-Ontario 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 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, December is the cheapest month in which you can book a flight from Monterrey to Ontario (average of $124). Flying from Monterrey to Ontario in July is currently the most expensive (average of $207). 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 $351, Volaris can have you in Ontario from Monterrey in 7h 52m. 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, December is the cheapest month in which you can book a flight from Monterrey to Ontario (average of $124). Flying from Monterrey to Ontario in July is currently the most expensive (average of $207). 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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