$201+ Cheap flights from Mexico City (MEX) 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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
MEX — ONT
Oct 3 — Oct 101
Round-trip
1 adult, Economy
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Find cheap flights from Mexico City to Ontario with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Mexico City to Ontario
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Best
Last-minute
One-way
Cheapest flights from Mexico City to OntarioExplore the most affordable flight options available from Mexico City to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 3, 2026.
Explore the most affordable flight options available from Mexico City to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 3, 2026.
This Frontier deal was found by Cheapflights users on 9/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:00 am -
1 stop12h 16m
Tue 10/610:04 am -
1 stop10h 41m
Deal found 9/1![Frontier logo]()
$311
This Priceline deal was found by Cheapflights users on 9/1. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:00 am -
1 stop12h 16m
Wed 10/710:04 am -
1 stop10h 41m
Deal found 9/1![Frontier logo]()
$315
This Frontier deal was found by Cheapflights users on 9/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:00 am -
1 stop12h 16m
Mon 9/286:15 am -
1 stop10h 15m
Deal found 9/2![Frontier logo]()
$334
This Frontier deal was found by Cheapflights users on 8/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:00 am -
1 stop12h 39m
Thu 10/156:15 am -
1 stop10h 15m
Deal found 8/31![Frontier logo]()
$357
This Kissandfly.com deal was found by Cheapflights users on 9/2. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2512:00 pm -
1 stop12h 05m
Sun 10/49:36 pm -
1 stop8h 49m
Deal found 9/2![Volaris logo]()
$369
This OneTravel deal was found by Cheapflights users on 8/31. 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.
Wed 10/712:00 pm -
1 stop12h 05m
Tue 10/1312:55 am -
1 stop11h 30m
Deal found 8/31![Volaris logo]()
$371
This CheapOair deal was found by Cheapflights users on 9/2. 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.
Tue 9/154:35 pm -
1 stop7h 30m
Mon 9/2112:55 am -
1 stop11h 30m
Deal found 9/2![Volaris logo]()
$372
This Frontier deal was found by Cheapflights users on 8/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:00 am -
1 stop10h 46m
Tue 10/1311:26 am -
1 stop9h 19m
Deal found 8/31![Frontier logo]()
$373
Best flights from Mexico City to OntarioDiscover carefully curated flight deals from Mexico City to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 3, 2026.
Discover carefully curated flight deals from Mexico City to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 3, 2026.
This Frontier deal was found by Cheapflights users on 9/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:00 am -
1 stop12h 16m
Wed 10/1411:26 am -
1 stop9h 19m
Deal found 9/2![Frontier logo]()
$375
This Volaris deal was found by Cheapflights users on 8/29. 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 Volaris is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/234:35 pm -
1 stop7h 30m
Sun 9/279:36 pm -
1 stop8h 49m
Deal found 8/29![Volaris logo]()
$418
This United Airlines deal was found by Cheapflights users on 8/30. 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 10/3012:50 pm -
1 stop10h 58m
Tue 11/34:17 pm -
2 stops15h 48m
Deal found 8/30![United Airlines logo]()
$562
This Volaris deal was found by Cheapflights users on 8/31. 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 Volaris is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/124:35 pm -
1 stop7h 30m
Sun 9/209:36 pm -
1 stop8h 49m
Deal found 8/31![Volaris logo]()
$440
This OneTravel deal was found by Cheapflights users on 8/29. 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.
Tue 11/32:40 pm -
1 stop9h 35m
Fri 11/612:05 am -
1 stop11h 55m
Deal found 8/29![Volaris logo]()
$490
Last-minute flights from Mexico City to OntarioDiscover last-minute flight deals from Mexico City to Ontario. Data last updated September 3, 2026 and is based on user searches.
Discover last-minute flight deals from Mexico City to Ontario. Data last updated September 3, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 9/2. 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.
Tue 9/154:35 pm -
1 stop7h 30m
Mon 9/2112:55 am -
1 stop11h 30m
Deal found 9/2![Volaris logo]()
$372
This Frontier deal was found by Cheapflights users on 9/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:00 am -
1 stop12h 16m
Mon 9/286:15 am -
1 stop10h 15m
Deal found 9/2![Frontier logo]()
$334
This Kissandfly.com deal was found by Cheapflights users on 9/2. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2512:00 pm -
1 stop12h 05m
Sun 10/49:36 pm -
1 stop8h 49m
Deal found 9/2![Volaris logo]()
$369
This Frontier deal was found by Cheapflights users on 9/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:00 am -
1 stop12h 16m
Tue 10/610:04 am -
1 stop10h 41m
Deal found 9/1![Frontier logo]()
$311
This Priceline deal was found by Cheapflights users on 9/1. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:00 am -
1 stop12h 16m
Wed 10/710:04 am -
1 stop10h 41m
Deal found 9/1![Frontier logo]()
$315
This CheapOair deal was found by Cheapflights users on 9/3. 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.
Wed 9/3010:00 am -
1 stop10h 46m
Wed 10/79:36 pm -
1 stop8h 49m
Deal found 9/3![Volaris logo]()
$371
This Frontier deal was found by Cheapflights users on 8/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:00 am -
1 stop12h 39m
Thu 10/156:15 am -
1 stop10h 15m
Deal found 8/31![Frontier logo]()
$357
This CheapOair deal was found by Cheapflights users on 9/3. 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.
Wed 10/712:00 pm -
1 stop12h 05m
Tue 10/1312:55 am -
1 stop11h 30m
Deal found 9/3![Volaris logo]()
$368
This Frontier deal was found by Cheapflights users on 9/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:00 am -
1 stop10h 38m
Tue 11/311:52 am -
2 stops20h 53m
Deal found 9/1![Frontier logo]()
$344
One-way flights from Mexico City to OntarioSearch for one-way flight options from Mexico City to Ontario. Find affordable one-way fares based on user searches. Data last updated September 3, 2026.
Search for one-way flight options from Mexico City to Ontario. Find affordable one-way fares based on user searches. Data last updated September 3, 2026.
This Super.com deal was found by Cheapflights users on 8/30. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:00 am -
1 stop11h 38m
Deal found 8/30![Frontier logo]()
$201
This Priceline deal was found by Cheapflights users on 9/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:00 am -
1 stop10h 48m
Deal found 9/2![Frontier logo]()
$204
This Frontier deal was found by Cheapflights users on 8/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:00 am -
1 stop12h 16m
Deal found 8/31![Frontier logo]()
$205
This FlightHub deal was found by Cheapflights users on 8/31. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/228:40 am -
1 stop16h 07m
Deal found 8/31![Frontier logo]()
$206
This FlightHub deal was found by Cheapflights users on 9/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1411:55 am -
1 stop27h 39m
Deal found 9/1![Frontier logo]()
$212
This Super.com deal was found by Cheapflights users on 8/31. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/262:40 pm -
1 stop9h 25m
Deal found 8/31![Volaris logo]()
$213
This Super.com deal was found by Cheapflights users on 8/29. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1510:00 am -
1 stop10h 46m
Deal found 8/29![Volaris logo]()
$214
This Super.com deal was found by Cheapflights users on 8/30. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1712:00 pm -
1 stop12h 05m
Deal found 8/30![Volaris logo]()
$215
This Jetabroad deal was found by Cheapflights users on 8/31. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/194:35 pm -
1 stop7h 30m
Deal found 8/31![Volaris logo]()
$218
This Super.com deal was found by Cheapflights users on 9/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/74:35 pm -
1 stop7h 30m
Deal found 9/2![Volaris logo]()
$220
Find flight deals from Mexico City to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Mexico City (MEX) 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 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $311 (Frontier) |
One-way from | $201 (Super.com) |
Popular in | August |
Cheapest in | January |
Average price | $300 |
Cheapflights Fare Finder
Customize your flight search to find flights from Mexico City 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 7,457,451 searches. Data last updated September 3, 2026.
Use the filters below to find and compare flights from Mexico City to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Mexico CityOntario
MEX Mexico City Benito Juarez - ONT Ontario
MEXONT
Mexico City Benito Juarez
Wed 10/7
7:00 am-6:16 pm
1 stop12h 16m
Ontario
Wed 10/14
11:26 am-9:45 pm
1 stop9h 19m
$375
Quickest round-trip
Mexico CityOntario
MEX Mexico City Benito Juarez - ONT Ontario
MEXONT
Mexico City Benito Juarez
Wed 9/23
4:35 pm-11:05 pm
1 stop7h 30m
Ontario
Sun 9/27
9:36 pm-7:25 am
1 stop8h 49m
$418
Mexico CityOntario
MEX Mexico City Benito Juarez - ONT Ontario
MEXONT
Mexico City Benito Juarez
Sat 9/12
4:35 pm-11:05 pm
1 stop7h 30m
Ontario
Sun 9/20
9:36 pm-7:25 am
1 stop8h 49m
$440
Mexico CityOntario
MEX Mexico City Benito Juarez - ONT Ontario
MEXONT
Mexico City Benito Juarez
Tue 11/3
2:40 pm-10:15 pm
1 stop9h 35m
Ontario
Fri 11/6
12:05 am-2:00 pm
1 stop11h 55m
$490
Mexico CityOntario
MEX Mexico City Benito Juarez - ONT Ontario
MEXONT
Mexico City Benito Juarez
Fri 10/30
12:50 pm-10:48 pm
1 stop10h 58m
Ontario
Tue 11/3
4:17 pm-10:05 am
2 stops15h 48m
$562
Cheapest one-way
Mexico CityOntario
MEX Mexico City Benito Juarez - ONT Ontario
MEXONT
Mexico City Benito Juarez
Wed 11/11
7:00 am-4:38 pm
1 stop11h 38m
$204
Mexico CityOntario
MEX Mexico City Benito Juarez - ONT Ontario
MEXONT
Mexico City Benito Juarez
Mon 10/12
7:00 am-7:08 pm
1 stop13h 08m
$228
Quickest one-way
Mexico CityOntario
MEX Mexico City Benito Juarez - ONT Ontario
MEXONT
Mexico City Benito Juarez
Sat 12/19
7:50 pm-11:58 pm
1 stop6h 08m
$233
Mexico CityOntario
MEX Mexico City Benito Juarez - ONT Ontario
MEXONT
Mexico City Benito Juarez
Sun 10/18
8:40 am-11:50 pm
1 stop16h 10m
$249
Mexico CityOntario
MEX Mexico City Benito Juarez - ONT Ontario
MEXONT
Mexico City Benito Juarez
Sun 10/4
7:00 am-6:39 pm
1 stop12h 39m
$261
Showing 1-10 of 15 resultsSorted by cheapest first
Compare providers for flights from Mexico City 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 Mexico City to Ontario in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Mexico City-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Mexico City-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Mexico City-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Mexico City-Ontario 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 Mexico City-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 Mexico City to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Mexico City with our price prediction graph.
MEX-ONT
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 Mexico City to Ontario
What is the cheapest month to book a flight from Mexico City to Ontario?
Currently, January is the cheapest month in which you can book a flight from Mexico City to Ontario (average of $262). Flying from Mexico City to Ontario in August is currently the most expensive (average of $572). 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.
How much does it cost to fly round-trip from Mexico City to Ontario?
Airfare is typical for this route at the moment.
Mexico City to Ontario flights typically cost between $290 and $363 in September.The cheapest round-trip price found within the last 5 days was $311 on Frontier (Sep 30-Oct 6).
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated September 3, 2026.
See what other customers who have flown with Volaris from Mexico City to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
7.3
Entertainment
4.9
Food
5.3
Boarding
6.6
Comfort
6.3
Overall
6.6
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
MEX - LAX
Crew
7.3
Entertainment
4.9
Food
5.3
Boarding
6.6
Comfort
6.3
Overall
6.6
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
MEX - LAX
Related info for your journey
Find useful and relevant information for your journey from Mexico City to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Complete your trip
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Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 3, 2026.
Mexico City and Ontario flights
Browse other Mexico City and Ontario flight options. Last updated on September 3, 2026.
Other flights from Mexico City
Browse through other flights departing from Mexico City. Flights are based on user searches made on Cheapflights and were last updated on September 3, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Mexico City to Ontario
Discover the top airline that operate flights from Mexico City to Ontario. 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 7,457,451 searches. Data last updated September 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$250 | Average$330 | FlexibilityNo cancel fee | On-time79% |