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Argentina

$528+ 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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — EZE
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Ontario to Argentina

Keep the following information in mind while searching for Ontario to Argentina flight deals. Data was last updated September 15, 2025.

Round-trip from

$1,030
(United Airlines)

One-way from

$528
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$837
From Ontario to Argentina
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One-way flight from Ontario to Argentina
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Highest demand for flights based on searches. 12% potential increase in price ($136 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($47 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 15, 2025.

This United Airlines deal was found by Cheapflights users on 9/12. 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 11/46:00 amONT - EZE
2 stops20h 20mUnited Airlines
Tue 11/1110:05 pmEZE - ONT
2 stops19h 32mUnited Airlines
Deal found 9/12$1,030
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 12/256:04 amONT - EZE
1 stop20h 16mUnited Airlines
Wed 1/1411:55 pmEZE - ONT
1 stop27h 03mUnited Airlines
Deal found 9/15$1,037
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Sun 11/91:29 pmONT - EZE
2 stops36h 51mUnited Airlines
Wed 11/1910:05 pmEZE - ONT
2 stops19h 28mUnited Airlines
Deal found 9/14$1,048
This Delta deal was found by Cheapflights users on 9/14. 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.
Sun 11/910:25 pmONT - EZE
2 stops26h 55mDelta
Wed 11/198:55 pmEZE - ONT
1 stop18h 45mDelta
Deal found 9/14$1,065
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Wed 11/126:05 amONT - EZE
1 stop20h 15mUnited Airlines
Sat 11/2210:05 pmEZE - ONT
2 stops19h 28mUnited Airlines
Deal found 9/13$1,070
This SmartFares deal was found by Cheapflights users on 9/13. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/810:25 pmONT - EZE
2 stops26h 55mLATAM Airlines
Thu 12/188:00 amEZE - ONT
2 stops20h 03mLATAM Airlines
Deal found 9/13$1,071
This United Airlines deal was found by Cheapflights users on 9/14. 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 12/126:00 amONT - EZE
1 stop20h 20mUnited Airlines
Tue 12/2311:55 pmEZE - ONT
1 stop26h 57mUnited Airlines
Deal found 9/14$1,077
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 11/206:05 amONT - EZE
1 stop20h 15mUnited Airlines
Sun 11/3010:05 pmEZE - ONT
1 stop28h 44mUnited Airlines
Deal found 9/15$1,078
This United Airlines deal was found by Cheapflights users on 9/13. 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 10/206:00 amONT - EZE
1 stop22h 00mUnited Airlines
Mon 12/1511:55 pmEZE - ONT
2 stops25h 47mUnited Airlines
Deal found 9/13$1,091
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/206:27 pmONT - EZE
2 stops33h 33mUnited Airlines
Thu 12/1111:55 pmEZE - ONT
2 stops25h 47mUnited Airlines
Deal found 9/15$1,105
This United Airlines deal was found by Cheapflights users on 9/13. 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 11/146:00 amONT - EZE
2 stops20h 20mUnited Airlines
Sun 11/2310:05 pmEZE - ONT
2 stops19h 28mUnited Airlines
Deal found 9/13$1,110
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 10/166:00 amONT - EZE
1 stop22h 00mUnited Airlines
Thu 12/1111:55 pmEZE - ONT
1 stop26h 54mUnited Airlines
Deal found 9/15$1,112

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 September 15, 2025.
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

Thu 1/22

6:00 am-7:20 am

1 stop20h 20m

Buenos Aires Ministro Pistarini

Tue 2/24

11:55 pm-6:00 pm

2 stops23h 05m

$1,030

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Mon 2/9

6:00 am-7:20 am

1 stop20h 20m

Buenos Aires Ministro Pistarini

Tue 2/24

10:05 pm-12:43 pm

2 stops19h 38m

$1,030

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Thu 1/15

6:00 am-7:20 am

1 stop20h 20m

Buenos Aires Ministro Pistarini

Thu 3/19

9:05 pm-12:33 pm

2 stops19h 28m

$1,030

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Mon 11/10

5:05 am-7:20 am

2 stops21h 15m

Buenos Aires Ministro Pistarini

Thu 11/20

11:55 pm-5:34 pm

2 stops22h 39m

$1,030

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Tue 1/20

6:00 am-7:20 am

1 stop20h 20m

Buenos Aires Ministro Pistarini

Tue 2/10

10:05 pm-12:47 pm

2 stops19h 42m

$1,030

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Mon 3/9

6:02 am-8:20 am

1 stop22h 18m

Buenos Aires Ministro Pistarini

Mon 3/23

9:05 pm-9:21 pm

1 stop28h 16m

$1,037

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Sun 11/9

7:05 am-9:00 am

1 stop20h 55m

Buenos Aires Ministro Pistarini

Wed 11/19

8:55 pm-10:40 am

1 stop18h 45m

$1,065

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Wed 1/14

6:00 am-7:20 am

1 stop20h 20m

Buenos Aires Ministro Pistarini

Fri 1/30

11:55 pm-5:43 pm

2 stops22h 48m

$1,070

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Mon 10/27

6:00 am-6:20 am

2 stops20h 20m

Buenos Aires Ministro Pistarini

Wed 11/5

10:05 pm-12:37 pm

2 stops19h 32m

$1,105

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Tue 10/21

9:36 am-8:00 am

2 stops18h 24m

Buenos Aires Ministro Pistarini

Mon 11/3

10:05 pm-12:31 pm

2 stops19h 26m

$1,105

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 30 results
1
2
3

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, April is the cheapest month in which you can book a flight from Ontario to Argentina (average of $795). Flying from Ontario to Argentina in December is currently the most expensive (average of $1,260). 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.

What is the cheapest time of day to fly from ONT to AR?

Find hourly flight availability from Ontario to Argentina. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Argentina as you normally would.

Reviews of airlines servicing Argentina

Get insights into the airlines that provide service to Argentina. 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 Argentina. Reviews last updated September 15, 2025.
Read through reviews of airlines operating flights from Ontario to Argentina, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,931 reviews

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.1

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,931 reviews
United Airlines
7.4
Good
8,931 reviews

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.1

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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 20h 20m. Fly via United Airlines or Delta to get the fastest option. Ontario and Argentina are separated by a distance of 6096 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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, April is the cheapest month in which you can book a flight from Ontario to Argentina (average of $795). Flying from Ontario to Argentina in December is currently the most expensive (average of $1,260). 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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