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Argentina

$561+ 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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — EZE
feb. 19 — feb. 261
jue. 2/19
jue. 2/26
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 enero 20, 2026.

This Mytrip deal was found by Cheapflights users on 1/20. 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.
jue. 3/1912:42 am
ONT
-
EZE
3 stops29h 38m
Multiple Airlines
mié. 3/252:40 am
EZE
-
ONT
2 stops23h 15m
Multiple Airlines
Deal found 1/20$983
This United Airlines deal was found by Cheapflights users on 1/18. 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.
mar. 3/176:00 am
ONT
-
EZE
1 stop22h 20m
United Airlines
mié. 4/299:00 pm
EZE
-
ONT
2 stops19h 22m
United Airlines
Deal found 1/18$1,051
This United Airlines deal was found by Cheapflights users on 1/19. 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.
dom. 3/291:34 pm
ONT
-
EZE
2 stops38h 26m
United Airlines
mié. 4/89:00 pm
EZE
-
ONT
1 stop28h 50m
United Airlines
Deal found 1/19$1,082
This KAYAK deal was found by Cheapflights users on 1/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/2310:25 pm
ONT
-
EZE
2 stops31h 10m
LATAM Airlines
dom. 4/51:20 pm
EZE
-
ONT
2 stops35h 40m
LATAM Airlines
Deal found 1/19$1,083
This United Airlines deal was found by Cheapflights users on 1/19. 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.
dom. 3/226:15 am
ONT
-
EZE
2 stops20h 05m
United Airlines
lun. 4/139:00 pm
EZE
-
ONT
2 stops19h 14m
United Airlines
Deal found 1/19$1,091
This Priceline deal was found by Cheapflights users on 1/18. 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.
dom. 2/812:41 pm
ONT
-
EZE
1 stop15h 19m
Multiple Airlines
mié. 3/44:55 pm
EZE
-
ONT
2 stops33h 00m
Multiple Airlines
Deal found 1/18$1,095
This United Airlines deal was found by Cheapflights users on 1/19. 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.
mar. 9/86:30 pm
ONT
-
EZE
2 stops33h 30m
United Airlines
vie. 9/189:00 pm
EZE
-
ONT
1 stop28h 21m
United Airlines
Deal found 1/19$1,104
This Priceline deal was found by Cheapflights users on 1/19. 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.
lun. 2/1610:20 pm
ONT
-
EZE
2 stops47h 30m
Multiple Airlines
lun. 2/234:55 pm
EZE
-
ONT
2 stops33h 00m
Multiple Airlines
Deal found 1/19$1,112
This Delta deal was found by Cheapflights users on 1/20. 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.
dom. 4/1210:25 pm
ONT
-
EZE
1 stop31h 20m
Delta
dom. 4/198:10 pm
EZE
-
ONT
1 stop28h 48m
Delta
Deal found 1/20$1,116
This LATAM Airlines deal was found by Cheapflights users on 1/19. 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.
mié. 3/1812:57 pm
ONT
-
EZE
1 stop16h 03m
LATAM Airlines
mié. 3/258:55 pm
EZE
-
ONT
1 stop18h 52m
LATAM Airlines
Deal found 1/19$1,122
This KAYAK deal was found by Cheapflights users on 1/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 3/2112:57 pm
ONT
-
EZE
1 stop16h 03m
LATAM Airlines
dom. 4/51:20 pm
EZE
-
ONT
2 stops35h 40m
LATAM Airlines
Deal found 1/19$1,123
This Mytrip deal was found by Cheapflights users on 1/20. 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.
sáb. 1/3111:59 pm
ONT
-
MDZ
3 stops25h 41m
Multiple Airlines
vie. 2/209:00 pm
MDZ
-
ONT
3 stops28h 55m
Multiple Airlines
Deal found 1/20$1,824

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 enero 20, 2026.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$983
(Mytrip)

One-way from

$561
(Priceline)

Popular in

December

Cheapest in

November

Average price

$968
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 ($96 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 January 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 enero 20, 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

mar. 3/17

6:15 am-8:20 am

2 stops22h 05m

Buenos Aires Ministro Pistarini

mié. 4/29

9:00 pm-12:22 pm

2 stops19h 22m

$1,051

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

mar. 4/21

6:00 am-8:00 am

2 stops22h 00m

Buenos Aires Ministro Pistarini

mar. 4/28

9:00 pm-12:14 pm

2 stops19h 14m

$1,051

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

lun. 4/20

6:05 am-8:00 am

1 stop21h 55m

Buenos Aires Ministro Pistarini

mar. 4/28

9:00 pm-12:14 pm

2 stops19h 14m

$1,051

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

sáb. 4/18

6:00 am-8:00 am

2 stops22h 00m

Buenos Aires Ministro Pistarini

lun. 4/27

9:00 pm-12:14 pm

2 stops19h 14m

$1,091

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

vie. 3/13

6:00 am-6:20 am

1 stop20h 20m

Buenos Aires Ministro Pistarini

lun. 3/23

10:55 pm-5:41 pm

2 stops22h 46m

$1,091

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

sáb. 3/14

6:00 am-8:20 am

1 stop22h 20m

Buenos Aires Ministro Pistarini

dom. 3/22

9:05 pm-10:57 pm

2 stops29h 52m

$1,131

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

vie. 5/1

6:00 am-8:00 am

1 stop22h 00m

Buenos Aires Ministro Pistarini

dom. 5/31

9:00 pm-11:06 pm

2 stops30h 06m

$1,131

OntarioMendoza

ONT - MDZ

ONTMDZ

Ontario

sáb. 1/31

11:59 pm-6:40 am

3 stops25h 41m

Mendoza El Plumerillo

vie. 2/20

9:00 pm-8:55 pm

3 stops28h 55m

$1,824

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

mié. 3/4

1:15 pm-9:00 am

1 stop14h 45m

$653

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

lun. 3/2

1:15 pm-9:00 am

1 stop14h 45m

$653

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 25 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 22h 05m. 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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