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Argentina

$432+ 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 7/15. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — EZE
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
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 February 4, 2026.

This Mytrip deal was found by Cheapflights users on 2/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/712:55 am
ONT
-
EZE
3 stops29h 05m
Multiple Airlines
Wed 4/154:50 pm
EZE
-
ONT
2 stops32h 55m
Multiple Airlines
Deal found 2/3$821
This Mytrip deal was found by Cheapflights users on 2/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1012:59 am
ONT
-
EZE
3 stops22h 01m
Multiple Airlines
Fri 8/214:50 pm
EZE
-
ONT
2 stops32h 55m
Multiple Airlines
Deal found 2/3$936
This Mytrip deal was found by Cheapflights users on 2/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1912:55 am
ONT
-
EZE
3 stops29h 05m
Multiple Airlines
Sat 4/257:10 am
EZE
-
ONT
2 stops19h 55m
Multiple Airlines
Deal found 2/2$995
This Gotogate deal was found by Cheapflights users on 2/1. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1411:35 pm
ONT
-
EZE
2 stops20h 50m
Avianca
Thu 5/77:10 am
EZE
-
ONT
2 stops18h 35m
Avianca
Deal found 2/1$1,019
This Gotogate deal was found by Cheapflights users on 2/2. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1911:30 pm
ONT
-
EZE
3 stops25h 40m
Avianca
Thu 3/267:30 am
EZE
-
ONT
2 stops18h 25m
Avianca
Deal found 2/2$1,021
This Richmond deal was found by Cheapflights users on 2/1. 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 Richmond is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2811:35 pm
ONT
-
EZE
2 stops36h 05m
Avianca
Mon 8/104:50 pm
EZE
-
ONT
2 stops32h 55m
Avianca
Deal found 2/1$1,045
This United Airlines deal was found by Cheapflights users on 2/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:02 am
ONT
-
EZE
1 stop21h 58m
United Airlines
Tue 8/259:00 pm
EZE
-
ONT
2 stops19h 33m
United Airlines
Deal found 2/1$1,047
This United Airlines deal was found by Cheapflights users on 2/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:05 am
ONT
-
EZE
1 stop21h 55m
United Airlines
Thu 5/79:00 pm
EZE
-
ONT
2 stops27h 36m
United Airlines
Deal found 2/1$1,051
This Delta deal was found by Cheapflights users on 2/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/3012:57 pm
ONT
-
EZE
1 stop16h 48m
Delta
Wed 4/88:10 pm
EZE
-
ONT
1 stop28h 50m
Delta
Deal found 2/3$1,052
This Mytrip deal was found by Cheapflights users on 2/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1411:35 pm
ONT
-
EZE
2 stops26h 05m
Multiple Airlines
Tue 5/197:10 am
EZE
-
ONT
2 stops19h 55m
Multiple Airlines
Deal found 2/2$1,058
This United Airlines deal was found by Cheapflights users on 2/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/306:05 am
ONT
-
EZE
1 stop21h 55m
United Airlines
Thu 4/99:00 pm
EZE
-
ONT
1 stop28h 50m
United Airlines
Deal found 2/3$1,059
This Mytrip deal was found by Cheapflights users on 2/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/312:42 am
ONT
-
MDZ
3 stops29h 23m
Multiple Airlines
Wed 3/1110:15 pm
MDZ
-
ONT
3 stops27h 40m
Multiple Airlines
Deal found 2/3$1,536

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 February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$821
(Mytrip)

One-way from

$432
(Mytrip)

Popular in

December

Cheapest in

November

Average price

$941
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. 9% potential increase in price ($95 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 February 4, 2026.
Use the filters below to find and compare flights from Ontario to Argentina that are best for you.

Fly from

Ontario

Fly to

Argentina

Route

Depart

Return

Price

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Tue 4/14

6:05 am-8:00 am

1 stop21h 55m

Buenos Aires Ministro Pistarini

Thu 5/7

9:00 pm-8:36 pm

2 stops27h 36m

$1,051

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Wed 4/1

6:05 am-8:00 am

1 stop21h 55m

Buenos Aires Ministro Pistarini

Wed 4/15

9:00 pm-8:36 pm

2 stops27h 36m

$1,051

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Mon 4/20

6:05 am-8:00 am

1 stop21h 55m

Buenos Aires Ministro Pistarini

Mon 4/27

9:00 pm-12:38 pm

2 stops19h 38m

$1,051

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Tue 4/14

6:05 am-8:00 am

1 stop21h 55m

Buenos Aires Ministro Pistarini

Tue 5/5

9:00 pm-8:36 pm

2 stops27h 36m

$1,051

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Thu 5/7

6:00 am-8:00 am

2 stops22h 00m

Buenos Aires Ministro Pistarini

Tue 5/19

9:00 pm-12:38 pm

2 stops19h 38m

$1,051

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Tue 4/14

7:05 am-9:45 am

1 stop22h 40m

Buenos Aires Ministro Pistarini

Thu 5/7

8:10 pm-9:54 pm

1 stop29h 44m

$1,052

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Wed 4/8

6:05 am-8:00 am

1 stop21h 55m

Buenos Aires Ministro Pistarini

Wed 4/15

9:00 pm-9:50 pm

1 stop28h 50m

$1,059

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Wed 3/25

6:00 am-7:20 am

2 stops21h 20m

Buenos Aires Ministro Pistarini

Wed 4/8

8:10 pm-9:00 pm

1 stop28h 50m

$1,065

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Fri 5/8

6:00 am-8:00 am

1 stop22h 00m

Buenos Aires Ministro Pistarini

Tue 5/19

9:00 pm-12:38 pm

2 stops19h 38m

$1,091

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Sun 4/5

6:05 am-8:00 am

1 stop21h 55m

Buenos Aires Ministro Pistarini

Tue 4/21

9:00 pm-12:38 pm

2 stops19h 38m

$1,091

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 28 results
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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 $268). Flying from Ontario to Argentina in June is currently the most expensive (average of $779). 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 $268). Flying from Ontario to Argentina in June is currently the most expensive (average of $779). 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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See prices for flight routes from nearby airports that may be better suited for you.
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