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Argentina

$412+ 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 8/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — EZE
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
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 July 1, 2025.

Round-trip from

$884
(Cheapflightsfares)

One-way from

$412
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$1,022
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. 8% potential increase in price ($94 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 1, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 6/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/210:30 pmONT - EZE
2 stops20h 45mAvianca
Thu 12/115:50 amEZE - ONT
3 stops20h 10mAvianca
Deal found 6/30$884
This United Airlines deal was found by Cheapflights users on 6/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/19:36 amONT - EZE
2 stops18h 24mUnited Airlines
Wed 10/159:00 pmEZE - ONT
2 stops27h 24mUnited Airlines
Deal found 6/29$1,030
This Mytrip deal was found by Cheapflights users on 7/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/211:09 amONT - EZE
3 stops28h 58mMultiple Airlines
Sat 11/19:15 pmEZE - ONT
3 stops26h 29mMultiple Airlines
Deal found 7/1$1,093
This American Airlines deal was found by Cheapflights users on 6/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2611:59 pmONT - EZE
1 stop28h 11mAmerican Airlines
Sat 12/610:30 pmEZE - ONT
1 stop16h 04mAmerican Airlines
Deal found 6/30$1,268
This Delta deal was found by Cheapflights users on 7/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2211:45 amONT - EZE
1 stop18h 00mDelta
Thu 9/48:10 pmEZE - ONT
1 stop18h 25mDelta
Deal found 7/1$1,277

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 July 1, 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 12/2

10:30 pm-12:15 am

2 stops20h 45m

Buenos Aires Ministro Pistarini

Thu 12/11

5:50 am-9:00 pm

3 stops20h 10m

$884

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Wed 10/1

9:36 am-8:00 am

2 stops18h 24m

Buenos Aires Ministro Pistarini

Wed 10/15

9:00 pm-8:24 pm

2 stops27h 24m

$1,030

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Tue 10/21

1:09 am-10:07 am

3 stops28h 58m

Buenos Aires Ministro Pistarini

Sat 11/1

9:15 pm-7:44 pm

3 stops26h 29m

$1,093

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Wed 11/26

11:59 pm-9:10 am

1 stop28h 11m

Buenos Aires Ministro Pistarini

Sat 12/6

10:30 pm-9:34 am

1 stop16h 04m

$1,268

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Fri 8/22

11:45 am-9:45 am

1 stop18h 00m

Buenos Aires Ministro Pistarini

Thu 9/4

8:10 pm-10:35 am

1 stop18h 25m

$1,277

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Thu 8/14

11:25 pm-1:25 am

3 stops22h 00m

$412

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Wed 7/9

9:11 pm-3:25 am

3 stops26h 14m

$495

OntarioMendoza

ONT - MDZ

ONTMDZ

Ontario

Thu 8/14

11:45 am-12:10 pm

2 stops44h 25m

$648

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Sun 11/9

6:09 am-9:20 am

1 stop22h 11m

$648

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Sun 11/30

10:59 pm-9:15 am

2 stops29h 16m

$650

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 15 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, 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 July 1, 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 July 1, 2025.
Read through reviews of airlines operating flights from Ontario to Argentina, such as Delta, LATAM Airlines, and Copa Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,973 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,973 reviews
Delta
8.0
Very good
7,973 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
LATAM Airlines
7.5
Good
1,801 reviews
Delta
8.0
Very good
7,973 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Copa Airlines
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,973 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,852 reviews
Delta
8.0
Very good
7,973 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,973 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • What are the cheapest airlines to fly from Ontario to Argentina one-way?

    The cheapest airlines for a one-way flight from Ontario to Argentina are Avianca ($412), Delta ($648), and United Airlines ($648).

  • 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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