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Argentina

$421+ 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 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — EZE
May 1 — May 81
Fri 5/1
Fri 5/8
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 April 1, 2026.

This Mytrip deal was found by Cheapflights users on 3/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:36 pm
ONT
-
EZE
3 stops32h 24m
Multiple Airlines
Wed 10/284:55 pm
EZE
-
ONT
2 stops33h 00m
Multiple Airlines
Deal found 3/29$887
This Mytrip deal was found by Cheapflights users on 3/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2212:55 am
ONT
-
EZE
3 stops28h 21m
Multiple Airlines
Wed 11/42:40 am
EZE
-
ONT
2 stops23h 15m
Multiple Airlines
Deal found 3/30$906
This Mytrip deal was found by Cheapflights users on 3/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/159:36 pm
ONT
-
EZE
3 stops32h 24m
Multiple Airlines
Mon 9/212:30 am
EZE
-
ONT
2 stops23h 15m
Multiple Airlines
Deal found 3/29$916
This Mytrip deal was found by Cheapflights users on 3/27. 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 11/89:13 pm
ONT
-
EZE
3 stops31h 47m
Multiple Airlines
Mon 11/162:40 am
EZE
-
ONT
2 stops23h 15m
Multiple Airlines
Deal found 3/27$950
This Mytrip deal was found by Cheapflights users on 3/27. 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.
Sat 11/710:30 pm
ONT
-
EZE
3 stops25h 40m
Avianca
Thu 11/127:30 am
EZE
-
ONT
2 stops18h 25m
Avianca
Deal found 3/27$954
This Mytrip deal was found by Cheapflights users on 3/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2712:55 am
ONT
-
EZE
3 stops34h 45m
Multiple Airlines
Wed 5/132:30 am
EZE
-
ONT
2 stops23h 15m
Multiple Airlines
Deal found 3/29$959
This Mytrip deal was found by Cheapflights users on 3/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2012:55 am
ONT
-
EZE
3 stops34h 45m
Multiple Airlines
Tue 5/127:10 am
EZE
-
ONT
2 stops18h 35m
Multiple Airlines
Deal found 3/29$966
This Mytrip deal was found by Cheapflights users on 3/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1411:35 pm
ONT
-
EZE
3 stops25h 25m
Avianca
Wed 5/202:30 am
EZE
-
ONT
2 stops23h 15m
Avianca
Deal found 3/29$970
This Mytrip deal was found by Cheapflights users on 3/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2712:55 am
ONT
-
EZE
3 stops34h 45m
Multiple Airlines
Tue 5/197:10 am
EZE
-
ONT
2 stops18h 35m
Multiple Airlines
Deal found 3/31$972
This Mytrip deal was found by Cheapflights users on 3/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1112:55 am
ONT
-
EZE
3 stops28h 21m
Multiple Airlines
Fri 6/192:30 am
EZE
-
ONT
2 stops23h 15m
Multiple Airlines
Deal found 3/31$974
This Mytrip deal was found by Cheapflights users on 3/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:35 pm
ONT
-
EZE
3 stops25h 25m
Avianca
Mon 10/122:30 am
EZE
-
ONT
2 stops23h 15m
Avianca
Deal found 3/29$985
This LATAM Airlines deal was found by Cheapflights users on 3/30. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:00 am
ONT
-
MDZ
2 stops33h 00m
LATAM Airlines
Wed 10/285:15 pm
MDZ
-
ONT
2 stops29h 03m
LATAM Airlines
Deal found 3/30$2,192

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 April 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$916
(Mytrip)

One-way from

$421
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$911
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. 11% potential increase in price ($119 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 1, 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

Cheapest round-trip

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Thu 5/28

5:45 am-8:00 am

1 stop22h 15m

Buenos Aires Ministro Pistarini

Mon 6/8

9:00 pm-12:12 pm

2 stops19h 12m

$1,151

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Thu 5/14

6:00 am-8:00 am

2 stops22h 00m

Buenos Aires Ministro Pistarini

Thu 5/21

9:00 pm-12:47 pm

2 stops19h 47m

$1,226

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Tue 4/28

6:00 am-8:00 am

2 stops22h 00m

Buenos Aires Ministro Pistarini

Wed 9/23

9:00 pm-12:33 pm

2 stops19h 33m

$1,226

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Tue 4/28

6:05 am-8:00 am

1 stop21h 55m

Buenos Aires Ministro Pistarini

Tue 5/19

9:00 pm-5:52 pm

2 stops24h 52m

$1,226

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Wed 9/2

5:45 am-8:00 am

1 stop22h 15m

Buenos Aires Ministro Pistarini

Fri 9/18

9:00 pm-12:38 pm

2 stops19h 38m

$1,266

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Tue 7/28

7:05 am-9:20 am

2 stops22h 15m

Buenos Aires Ministro Pistarini

Mon 8/10

8:10 pm-11:04 am

1 stop18h 54m

$1,301
Quickest round-trip

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Tue 4/28

7:05 am-9:20 am

2 stops22h 15m

Buenos Aires Ministro Pistarini

Tue 5/19

8:10 pm-10:57 am

1 stop18h 47m

$1,301

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Wed 5/6

6:00 am-9:45 am

2 stops23h 45m

Buenos Aires Ministro Pistarini

Wed 5/13

1:10 pm-10:57 am

2 stops25h 47m

$1,301

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Tue 4/28

6:05 am-8:00 am

1 stop21h 55m

Buenos Aires Ministro Pistarini

Thu 5/14

9:00 pm-8:36 pm

2 stops27h 36m

$1,301
Cheapest one-way
Quickest one-way

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Mon 4/27

9:36 pm-9:25 pm

2 stops19h 49m

$597

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/29

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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 $266). Flying from Ontario to Argentina in June is currently the most expensive (average of $773). 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 22h 15m. 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 $266). Flying from Ontario to Argentina in June is currently the most expensive (average of $773). 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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