ONT - MTY

$115 Find Cheap Flights from Ontario to Monterrey - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Monterrey departing on 7/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$320
Volaris
Thu 8/20Sun 8/23
ONT - MTY • 1 stop
Cheapest one-way
$115
Volaris
Mon 7/20
ONT - MTY • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Ontario and Monterrey. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Guadalajara (GDL)
Cheapest • Avg $360 (round-trip)
Phoenix (PHX)
Shortest trip • 6h 15m (one-way)
Insights
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Monterrey (ONT-MTY)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Monterrey that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Monterrey

Thu, Aug 20 - Sun, Aug 23
Volaris Logo
9:36 pm - 9:36 am
ONT
-
MTY
11h 00m
1 stop
Volaris Logo
12:20 pm - 11:05 pm
MTY
-
ONT
11h 45m
1 stop
$320Volaris
Wed, Aug 19 - Sat, Aug 22
Volaris Logo
9:36 pm - 9:36 am
ONT
-
MTY
11h 00m
1 stop
Volaris Logo
6:20 pm - 11:05 pm
MTY
-
ONT
5h 45m
1 stop
$322Volaris
Thu, Aug 20 - Sun, Aug 23
Volaris Logo
12:40 pm - 8:12 pm
ONT
-
MTY
6h 32m
1 stop
Volaris Logo
6:20 pm - 11:05 pm
MTY
-
ONT
5h 45m
1 stop
$323Volaris
Thu, Aug 20 - Sun, Aug 23
Volaris Logo
9:36 pm - 9:36 am
ONT
-
MTY
11h 00m
1 stop
Volaris Logo
12:20 pm - 11:05 pm
MTY
-
ONT
11h 45m
1 stop
$325Volaris
Sun, Aug 16 - Thu, Aug 20
Volaris Logo
12:55 am - 9:36 am
ONT
-
MTY
7h 41m
1 stop
Volaris Logo
6:20 pm - 11:05 pm
MTY
-
ONT
5h 45m
1 stop
$331Volaris
Sat, Aug 15 - Sat, Aug 22
Volaris Logo
9:36 pm - 7:31 am
ONT
-
MTY
8h 55m
1 stop
Volaris Logo
12:20 pm - 11:05 pm
MTY
-
ONT
11h 45m
1 stop
$332Volaris
Fri, Aug 28 - Sat, Sep 5
Volaris Logo
12:55 am - 1:51 pm
ONT
-
MTY
11h 56m
1 stop
Volaris Logo
6:20 pm - 11:05 pm
MTY
-
ONT
5h 45m
1 stop
$334Volaris
Wed, Aug 12 - Wed, Aug 19
Volaris Logo
9:36 pm - 7:31 am
ONT
-
MTY
8h 55m
1 stop
Volaris Logo
2:21 pm - 7:46 pm
MTY
-
ONT
6h 25m
1 stop
$337Volaris
Tue, Aug 4 - Fri, Aug 21
Volaris Logo
9:36 pm - 7:31 am
ONT
-
MTY
8h 55m
1 stop
Volaris Logo
12:20 pm - 11:05 pm
MTY
-
ONT
11h 45m
1 stop
$342Volaris
Sat, Aug 22 - Thu, Aug 27
Volaris Logo
12:55 am - 9:36 am
ONT
-
MTY
7h 41m
1 stop
Volaris Logo
2:21 pm - 7:46 pm
MTY
-
ONT
6h 25m
1 stop
$344Volaris
Booking Insights

KAYAK's insights & trends for Ontario to Monterrey flights

Get data-powered insights and trends into flights from Ontario to Monterrey to help you find the cheapest flights, the best time to fly and much more.

What is the most popular layover airport when flying from Ontario to Monterrey?

Percentage of 1-stop round-trip flights from Ontario to Monterrey chosen by KAYAK users via each layover airport in the last 12 months (only includes trips with the same layover airport on both legs).

Guadalajara (GDL) is the top choice – 83% of KAYAK users who clicked on 1-stop flights from Ontario to Monterrey picked an itinerary connecting there.

What is the cheapest layover airport when flying from Ontario to Monterrey?

Average round-trip price for 1-stop flights from Ontario to Monterrey clicked by KAYAK users in the last 12 months (only includes trips with the same layover airport on both legs).

Flights via Guadalajara (GDL) offer the most affordable fares, with an average round-trip price of $360.

Which layover airport offers the shortest total travel time from Ontario to Monterrey?

Shortest average total travel time for 1-stop one-way flights from Ontario to Monterrey via different layover airports, based on KAYAK user data from the last 12 months.

Consider flying via Phoenix (PHX) for the shortest journey. The average one-way travel time for flights connecting there is 6h 15m.

Which layover airport has the quickest connection when flying from Ontario to Monterrey?

Average layover duration at different layover airports for 1-stop one-way flights from Ontario to Monterrey, based on KAYAK user data from the last 12 months.

If you prefer a quick connection, Phoenix (PHX) often has the shortest layovers from Ontario to Monterrey, with an average of 2h 03m.

Find deals

Good to know

Cheapest flight$115
Flight from Ontario to Monterrey

When to book flights from Ontario to Monterrey

Are your dates flexible? Find out the best times to travel from Ontario to Monterrey based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Monterrey

  • What is the cheapest flight from Ontario to Monterrey?

    In the last 5 days, the lowest price for a flight from Ontario to Monterrey was $115 for a one-way ticket and $320 for a round-trip.

  • Do I need a passport to fly between Ontario and Monterrey?

    Yes, you’ll need a passport to travel to Monterrey from Ontario.

  • Which aircraft models fly most regularly from Ontario to Monterrey?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Ontario to Monterrey?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Monterrey.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Monterrey?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Monterrey from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Monterrey?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Monterrey with an airline and back to Ontario with another airline. Booking your flights between Ontario and MTY can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Monterrey?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Monterrey from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Ontario to Monterrey

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Monterrey. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Monterrey? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.6
VolarisOverall score based on 1152 reviews
7.3Crew
6.5Boarding
4.9Entertainment
6.3Comfort
5.2Food
Airline reviews

Overall a good red eye. Crew chatted very loudly the whole time making it difficult to sleep.

8.0 ExcellentAnonymous, Jan 2026
OAK - BJX
Read more Volaris reviews

Overall a good red eye. Crew chatted very loudly the whole time making it difficult to sleep.

The fly was 2 hours delayed and the plane was old and dirty. A very umcorfotable flight, which I won't recomend to anyone

Confusion over extra fees. Held up on ramp during boarding. Thin seat cushion. Minimal leg room.

The check-in is either at a kiosk that didn’t allow me to check-in because my middle name was not on the reservation or at an agent that cost $15.

The app doesn’t work. I am having a lot of trouble checking in for flight tomorrow. Very disconcerting. Then they es t to charge extra for checking in at the airport;(

To many extra fees, poor customer service and very uncomfortable flight. No leg room and seat wont recline.

I am disabled and was unable to get any assistance from Volaris. I had to wait in line at front desk for 45 minutes, I am by myself, and unable to stand. When I got to front desk check in, they had no assistance for me. I did however, have wheelchair assistance when I arrived in Mexico City. Thank God for that!

Our flight got overbooked and we missed one day of our trip.

Be prepared to pay extra for everything! I'm not sure I really saved any money?

Check in at LAX was terrible. Unbelievable lines. Chaos. The landing in Morelia was scary, with the plane fishtailing. If other airlines flew directly between California and Morelia, I would never fly Volaris again.

Everything you need to know for your flight from Ontario to Monterrey

Information on your arrival and departure airports

Ontario (ONT)
Monterrey (MTY)