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Monterrey

$120+ 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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MTY
Jul 9 — Jul 161
Thu 7/9
Thu 7/16
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 June 9, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 6/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/209:36 pm
ONT
-
MTY
1 stop11h 00m
Volaris
Sun 8/236:20 pm
MTY
-
ONT
1 stop5h 45m
Volaris
Deal found 6/7$342
This Gotogate deal was found by Cheapflights users on 6/5. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/49:36 pm
ONT
-
MTY
1 stop8h 55m
Volaris
Thu 7/96:20 pm
MTY
-
ONT
1 stop5h 45m
Volaris
Deal found 6/5$346
This Trip.com deal was found by Cheapflights users on 6/5. 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.
Fri 9/1812:55 am
ONT
-
MTY
1 stop11h 56m
Volaris
Wed 9/232:21 pm
MTY
-
ONT
1 stop6h 25m
Volaris
Deal found 6/5$347
This Mytrip deal was found by Cheapflights users on 6/6. 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.
Mon 6/299:36 pm
ONT
-
MTY
1 stop8h 55m
Volaris
Wed 7/86:20 pm
MTY
-
ONT
1 stop5h 45m
Volaris
Deal found 6/6$348
This Mytrip deal was found by Cheapflights users on 6/6. 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 6/289:36 pm
ONT
-
MTY
1 stop11h 00m
Volaris
Wed 7/812:20 pm
MTY
-
ONT
1 stop11h 45m
Volaris
Deal found 6/6$354
This Gotogate deal was found by Cheapflights users on 6/5. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/39:36 pm
ONT
-
MTY
1 stop8h 55m
Volaris
Thu 7/96:20 pm
MTY
-
ONT
1 stop5h 45m
Volaris
Deal found 6/5$357
This Gotogate deal was found by Cheapflights users on 6/4. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/169:36 pm
ONT
-
MTY
1 stop8h 55m
Volaris
Wed 7/2212:20 pm
MTY
-
ONT
1 stop11h 45m
Volaris
Deal found 6/4$364
This Gotogate deal was found by Cheapflights users on 6/7. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/269:36 pm
ONT
-
MTY
1 stop8h 55m
Volaris
Thu 7/212:20 pm
MTY
-
ONT
1 stop11h 45m
Volaris
Deal found 6/7$365
This Mytrip deal was found by Cheapflights users on 6/7. 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.
Mon 6/299:36 pm
ONT
-
MTY
2 stops21h 02m
Volaris
Thu 7/96:20 pm
MTY
-
ONT
1 stop5h 45m
Volaris
Deal found 6/7$367
This Mytrip deal was found by Cheapflights users on 6/4. 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.
Mon 6/89:36 pm
ONT
-
MTY
1 stop11h 00m
Volaris
Wed 6/1012:20 pm
MTY
-
ONT
1 stop11h 45m
Volaris
Deal found 6/4$374
This Mytrip deal was found by Cheapflights users on 6/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/159:36 pm
ONT
-
MTY
1 stop8h 55m
Volaris
Wed 7/112:20 pm
MTY
-
ONT
1 stop11h 45m
Volaris
Deal found 6/8$377

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 June 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$342
(Cheapflightsfares)

One-way from

$120
(CheapOair)

Popular in

February

Cheapest in

September

Average price

$395
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. 6% potential increase in price ($23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
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 June 9, 2026.
Use the filters below to find and compare flights from Ontario to Monterrey that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioMonterrey

ONT - MTY

ONTMTY

Ontario

Sat 7/4

9:36 pm-7:31 am

1 stop8h 55m

Monterrey Gen Mariano Escobedo

Thu 7/9

6:20 pm-11:05 pm

1 stop5h 45m

$346

OntarioMonterrey

ONT - MTY

ONTMTY

Ontario

Mon 6/29

9:36 pm-7:31 am

1 stop8h 55m

Monterrey Gen Mariano Escobedo

Wed 7/8

6:20 pm-11:05 pm

1 stop5h 45m

$348

OntarioMonterrey

ONT - MTY

ONTMTY

Ontario

Sat 7/4

9:36 pm-7:31 am

1 stop8h 55m

Monterrey Gen Mariano Escobedo

Fri 7/10

6:20 pm-11:05 pm

1 stop5h 45m

$367

OntarioMonterrey

ONT - MTY

ONTMTY

Ontario

Mon 7/13

9:36 pm-7:31 am

1 stop8h 55m

Monterrey Gen Mariano Escobedo

Wed 7/15

2:21 pm-7:46 pm

1 stop6h 25m

$388
Quickest round-trip

OntarioMonterrey

ONT - MTY

ONTMTY

Ontario

Sat 6/20

9:36 pm-7:31 am

1 stop8h 55m

Monterrey Gen Mariano Escobedo

Tue 6/23

6:21 pm-11:05 pm

1 stop5h 44m

$389

OntarioMonterrey

ONT - MTY

ONTMTY

Ontario

Tue 9/22

9:36 pm-7:31 am

1 stop8h 55m

Monterrey Gen Mariano Escobedo

Fri 9/25

6:20 pm-11:05 pm

1 stop5h 45m

$406

OntarioMonterrey

ONT - MTY

ONTMTY

Ontario

Thu 6/25

9:36 pm-7:31 am

1 stop8h 55m

Monterrey Gen Mariano Escobedo

Sun 6/28

2:21 pm-11:05 pm

1 stop9h 44m

$410

OntarioMonterrey

ONT - MTY

ONTMTY

Ontario

Sat 7/4

9:36 pm-9:36 am

1 stop11h 00m

Monterrey Gen Mariano Escobedo

Sat 7/11

2:21 pm-11:05 pm

1 stop9h 44m

$427

OntarioMonterrey

ONT - MTY

ONTMTY

Ontario

Thu 7/9

12:55 am-11:45 am

1 stop9h 50m

Monterrey Gen Mariano Escobedo

Tue 7/14

2:21 pm-11:05 pm

1 stop9h 44m

$429

OntarioMonterrey

ONT - MTY

ONTMTY

Ontario

Thu 7/9

12:55 am-1:51 pm

1 stop11h 56m

Monterrey Gen Mariano Escobedo

Mon 7/13

12:20 pm-7:46 pm

1 stop8h 26m

$445

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/7

Showing 1-10 of 19 resultsSorted by cheapest first
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 June.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice 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 Ontario-Monterrey flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Monterrey flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

Reviews of airlines servicing Monterrey

Get insights into the airlines that provide service to Monterrey. 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 Monterrey. Reviews last updated June 9, 2026.
Read through reviews of airlines operating flights from Ontario to Monterrey, such as Volaris. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Volaris
6.5
Okay
1,157 reviews

Comfort

6.3

Boarding

6.5

Entertainment

4.9

Crew

7.2

Overall

6.5

Food

5.2

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

MEX - LAX

My husband had and issue with check in through the app so we had to go to the counter and make line. We had to walk a long way to the gate. Volaris counter was in gate 2 and we had to go all the way to gate 34. It felt forever to get to our gate.
Volaris
6.5
Okay
1,157 reviews
Volaris
6.5
Okay
1,157 reviews

Comfort

6.3

Boarding

6.5

Entertainment

4.9

Crew

7.2

Overall

6.5

Food

5.2

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

MEX - LAX

My husband had and issue with check in through the app so we had to go to the counter and make line. We had to walk a long way to the gate. Volaris counter was in gate 2 and we had to go all the way to gate 34. It felt forever to get to our gate.

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 8h 55m. Fly via Volaris to get the fastest option. The distance between Ontario and Monterrey is about 1190 mi.

  • What is the cheapest airline to fly from Ontario to Monterrey round-trip?

    Our cheapest airline available from Ontario to Monterrey is Volaris. Our recent data shows that you can find tickets from as low as $274 on this airline.

  • 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.

See more FAQs

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Top airline flying from Ontario to Monterrey

Discover the top airline that operate flights from Ontario to Monterrey. 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 June 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
VolarisCheapest$274Average$307FlexibilityNo cancel feeOn-time79%

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