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Argentina

$436+ Cheap flights from Ontario (ONT) to Argentina

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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — EZE
Apr 1 — Apr 81
Wed 4/1
Wed 4/8
1 adult, Economy
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Cheap flight deals from Ontario to Argentina

Cheapest flights from Ontario to Argentina
Explore the most affordable flight options available from Ontario to Argentina. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 2, 2026.

This Mytrip deal was found by Cheapflights users on 2/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1012:27 am
ONT
-
EZE
3 stops29h 53m
Multiple Airlines
Tue 3/177:30 am
EZE
-
ONT
2 stops18h 25m
Multiple Airlines
Deal found 2/27$920
This Mytrip deal was found by Cheapflights users on 2/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/29:13 pm
ONT
-
EZE
3 stops31h 48m
Multiple Airlines
Mon 8/172:30 am
EZE
-
ONT
2 stops23h 15m
Multiple Airlines
Deal found 2/26$923
This Mytrip deal was found by Cheapflights users on 2/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/512:55 am
ONT
-
EZE
3 stops29h 05m
Multiple Airlines
Mon 8/172:30 am
EZE
-
ONT
2 stops23h 15m
Multiple Airlines
Deal found 2/26$932
This Mytrip deal was found by Cheapflights users on 2/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/19:13 pm
ONT
-
EZE
3 stops25h 47m
Multiple Airlines
Mon 8/242:30 am
EZE
-
ONT
2 stops23h 15m
Multiple Airlines
Deal found 2/26$942
This Mytrip deal was found by Cheapflights users on 2/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/119:13 pm
ONT
-
EZE
3 stops28h 27m
Multiple Airlines
Wed 9/22:30 am
EZE
-
ONT
2 stops23h 15m
Multiple Airlines
Deal found 2/26$950
This Mytrip deal was found by Cheapflights users on 2/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/129:13 pm
ONT
-
EZE
3 stops31h 03m
Multiple Airlines
Mon 11/232:40 am
EZE
-
ONT
2 stops23h 15m
Multiple Airlines
Deal found 2/27$955
This Mytrip deal was found by Cheapflights users on 2/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/59:13 pm
ONT
-
EZE
3 stops26h 32m
Multiple Airlines
Fri 8/142:30 am
EZE
-
ONT
2 stops23h 15m
Multiple Airlines
Deal found 2/26$970
This Mytrip deal was found by Cheapflights users on 3/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/511:02 pm
ONT
-
EZE
3 stops30h 13m
Multiple Airlines
Wed 3/112:40 am
EZE
-
ONT
2 stops23h 15m
Multiple Airlines
Deal found 3/1$995
This Mytrip deal was found by Cheapflights users on 2/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/19:13 pm
ONT
-
EZE
3 stops30h 16m
Multiple Airlines
Fri 11/62:40 am
EZE
-
ONT
2 stops23h 15m
Multiple Airlines
Deal found 2/27$997
This Mytrip deal was found by Cheapflights users on 2/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1712:27 am
ONT
-
EZE
3 stops29h 53m
Multiple Airlines
Mon 3/232:43 pm
EZE
-
ONT
3 stops35h 54m
Multiple Airlines
Deal found 2/27$1,011
This Mytrip deal was found by Cheapflights users on 2/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2412:55 am
ONT
-
EZE
3 stops34h 55m
Multiple Airlines
Thu 11/197:30 am
EZE
-
ONT
2 stops18h 25m
Multiple Airlines
Deal found 2/26$1,021
This Priceline deal was found by Cheapflights users on 2/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/411:35 pm
ONT
-
EZE
2 stops21h 45m
Avianca
Mon 6/152:30 am
EZE
-
ONT
2 stops23h 15m
Avianca
Deal found 2/27$1,038

Find flight deals from Ontario to Argentina

Keep the following information in mind while searching for Ontario to Argentina flight deals. Data was last updated March 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$920
(Mytrip)

One-way from

$436
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$931
Provider with most accurate pricing for Los Angeles-Buenos Aires (BUE) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Buenos Aires (BUE) flights.
Search Deals
From Ontario to Argentina
Search Deals
One-way flight from Ontario to Argentina
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($104 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Argentina 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 March 2, 2026.
Use the filters below to find and compare flights from Ontario to Argentina that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Wed 5/20

6:00 am-8:00 am

1 stop22h 00m

Buenos Aires Ministro Pistarini

Wed 6/3

9:00 pm-12:47 pm

2 stops19h 47m

$1,051

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Sun 4/19

6:00 am-8:00 am

2 stops22h 00m

Buenos Aires Ministro Pistarini

Mon 4/27

9:00 pm-12:20 pm

2 stops19h 20m

$1,091

OntarioMendoza

ONT - MDZ

ONTMDZ

Ontario

Sat 3/21

12:27 am-8:10 pm

3 stops39h 43m

Mendoza El Plumerillo

Fri 4/17

9:00 pm-9:45 pm

3 stops28h 45m

$1,109

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Sun 4/5

6:49 pm-8:00 am

2 stops33h 11m

Buenos Aires Ministro Pistarini

Tue 5/5

9:00 pm-8:36 pm

2 stops27h 36m

$1,126

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Thu 5/14

6:00 am-8:00 am

1 stop22h 00m

Buenos Aires Ministro Pistarini

Thu 5/21

9:00 pm-12:47 pm

2 stops19h 47m

$1,126

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Mon 5/4

6:00 am-8:00 am

2 stops22h 00m

Buenos Aires Ministro Pistarini

Tue 10/13

9:00 pm-12:20 pm

2 stops19h 20m

$1,126

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Fri 5/22

6:30 pm-8:00 am

2 stops33h 30m

Buenos Aires Ministro Pistarini

Sun 5/31

9:00 pm-9:55 pm

1 stop28h 55m

$1,144

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Mon 3/30

6:49 pm-8:00 am

2 stops33h 11m

Buenos Aires Ministro Pistarini

Mon 4/6

9:00 pm-9:50 pm

1 stop28h 50m

$1,215

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Wed 7/1

1:18 pm-8:00 am

2 stops38h 42m

Buenos Aires Ministro Pistarini

Wed 7/8

9:00 pm-12:47 pm

2 stops43h 47m

$1,221

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Tue 3/17

6:15 am-8:20 am

2 stops22h 05m

Buenos Aires Ministro Pistarini

Tue 4/21

9:00 pm-12:20 pm

2 stops19h 20m

$1,245

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/1

Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Ontario to Argentina

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

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

Currently, May is the cheapest month in which you can book a flight from Ontario to Argentina (average of $267). Flying from Ontario to Argentina in June is currently the most expensive (average of $778). 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 Argentina. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Argentina?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Argentina.

  • How long is the flight from Ontario to Argentina?

    There are many flights that can get you from Ontario to Argentina in 21h 55m. Fly via United Airlines to get the fastest option. Ontario and Argentina are separated by a distance of 6096 mi.

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

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from Ontario to Argentina (average of $267). Flying from Ontario to Argentina in June is currently the most expensive (average of $778). 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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