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Argentina

$531+ 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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — EZE
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
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 August 14, 2025.

Round-trip from

$1,030
(United Airlines)

One-way from

$531
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$871
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. 11% potential increase in price ($124 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 14, 2025.

This United Airlines deal was found by Cheapflights users on 8/12. 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.
Mon 12/85:05 amONT - EZE
2 stops21h 15mUnited Airlines
Tue 12/1610:05 pmEZE - ONT
2 stops19h 12mUnited Airlines
Deal found 8/12$1,030
This United Airlines deal was found by Cheapflights users on 8/12. 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.
Wed 10/156:00 amONT - EZE
1 stop22h 00mUnited Airlines
Mon 10/279:05 pmEZE - ONT
1 stop28h 32mUnited Airlines
Deal found 8/12$1,037
This United Airlines deal was found by Cheapflights users on 8/12. 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.
Sun 11/95:05 amONT - EZE
2 stops45h 15mUnited Airlines
Wed 11/1910:05 pmEZE - ONT
2 stops19h 28mUnited Airlines
Deal found 8/12$1,048
This United Airlines deal was found by Cheapflights users on 8/12. 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.
Thu 11/66:05 amONT - EZE
1 stop22h 15mUnited Airlines
Sun 11/1610:05 pmEZE - ONT
2 stops24h 29mUnited Airlines
Deal found 8/12$1,070
This Mytrip deal was found by Cheapflights users on 8/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/261:09 amONT - EZE
3 stops22h 36mMultiple Airlines
Sat 10/46:15 pmEZE - ONT
3 stops32h 58mMultiple Airlines
Deal found 8/12$1,074
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Sun 10/198:16 pmONT - EZE
2 stops31h 44mUnited Airlines
Sat 11/110:05 pmEZE - ONT
2 stops19h 28mUnited Airlines
Deal found 8/13$1,089
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Thu 9/186:04 amONT - EZE
1 stop21h 56mUnited Airlines
Tue 10/149:00 pmEZE - ONT
2 stops19h 51mUnited Airlines
Deal found 8/13$1,105
This United Airlines deal was found by Cheapflights users on 8/12. 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.
Fri 10/316:00 amONT - EZE
2 stops20h 20mUnited Airlines
Sat 11/810:05 pmEZE - ONT
2 stops19h 28mUnited Airlines
Deal found 8/12$1,110
This Mytrip deal was found by Cheapflights users on 8/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/610:30 pmONT - EZE
2 stops22h 05mMultiple Airlines
Fri 11/144:55 pmEZE - ONT
3 stops30h 49mMultiple Airlines
Deal found 8/13$1,114
This United deal was found by Cheapflights users on 8/11. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/86:50 pmONT - EZE
3 stops30h 45mMultiple Airlines
Mon 9/155:55 amEZE - ONT
3 stops43h 30mMultiple Airlines
Deal found 8/11$1,126

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 August 14, 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

Tue 11/4

6:05 am-7:20 am

1 stop20h 15m

Buenos Aires Ministro Pistarini

Wed 11/12

10:05 pm-12:37 pm

2 stops19h 32m

$1,030

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Thu 1/22

6:02 am-7:20 am

1 stop20h 18m

Buenos Aires Ministro Pistarini

Tue 2/24

10:05 pm-12:33 pm

2 stops19h 28m

$1,030

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Wed 10/8

6:00 am-8:00 am

1 stop22h 00m

Buenos Aires Ministro Pistarini

Wed 10/22

9:00 pm-12:51 pm

2 stops19h 51m

$1,030

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Tue 2/3

6:00 am-7:20 am

2 stops20h 20m

Buenos Aires Ministro Pistarini

Tue 3/3

10:05 pm-12:33 pm

2 stops19h 28m

$1,030

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Wed 10/15

6:00 am-8:00 am

1 stop22h 00m

Buenos Aires Ministro Pistarini

Mon 10/27

10:55 pm-10:45 pm

2 stops27h 50m

$1,030

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Mon 12/8

5:05 am-7:20 am

2 stops21h 15m

Buenos Aires Ministro Pistarini

Tue 12/16

10:05 pm-12:17 pm

2 stops19h 12m

$1,030

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Wed 11/5

5:05 am-7:20 am

2 stops21h 15m

Buenos Aires Ministro Pistarini

Thu 11/27

10:05 pm-12:33 pm

2 stops19h 28m

$1,030

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Tue 10/28

6:00 am-6:20 am

2 stops20h 20m

Buenos Aires Ministro Pistarini

Tue 11/11

10:05 pm-12:31 pm

2 stops19h 26m

$1,030

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Sat 10/4

11:25 pm-4:50 am

3 stops25h 25m

$531

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Sat 9/13

1:09 am-5:00 am

3 stops23h 51m

$547

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Showing 1-10 of 17 results
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, 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 August 14, 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 August 14, 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
8,916 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

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
8,916 reviews
United Airlines
7.4
Good
8,916 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

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.

  • 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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Alternative routes for Ontario to Argentina

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