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Argentina

$462+ 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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — EZE
nov. 13 — nov. 201
jue. 11/13
jue. 11/20
1 adult, Economy
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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 octubre 14, 2025.

This United Airlines deal was found by Cheapflights users on 10/14. 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.
lun. 12/86:00 amONT - EZE
2 stops20h 20mUnited Airlines
mié. 12/1710:05 pmEZE - ONT
2 stops19h 33mUnited Airlines
Deal found 10/14$1,030
This United Airlines deal was found by Cheapflights users on 10/13. 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.
mar. 12/166:00 amONT - EZE
1 stop20h 20mUnited Airlines
mar. 1/1311:55 pmEZE - ONT
1 stop27h 03mUnited Airlines
Deal found 10/13$1,038
This United Airlines deal was found by Cheapflights users on 10/13. 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.
jue. 12/115:05 amONT - EZE
2 stops21h 15mUnited Airlines
mar. 1/1310:05 pmEZE - ONT
1 stop28h 53mUnited Airlines
Deal found 10/13$1,042
This United Airlines deal was found by Cheapflights users on 10/12. 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.
mar. 12/26:00 amONT - EZE
1 stop20h 20mUnited Airlines
vie. 12/1211:55 pmEZE - ONT
2 stops22h 42mUnited Airlines
Deal found 10/12$1,070
This United Airlines deal was found by Cheapflights users on 10/13. 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.
jue. 12/116:00 amONT - EZE
1 stop22h 20mUnited Airlines
vie. 1/1611:55 pmEZE - ONT
1 stop27h 03mUnited Airlines
Deal found 10/13$1,078
This United Airlines deal was found by Cheapflights users on 10/12. 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.
lun. 12/156:00 amONT - EZE
2 stops20h 20mUnited Airlines
vie. 12/2611:55 pmEZE - ONT
1 stop26h 57mUnited Airlines
Deal found 10/12$1,083
This United Airlines deal was found by Cheapflights users on 10/13. 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.
mié. 11/266:05 amONT - EZE
1 stop20h 15mUnited Airlines
jue. 12/1110:05 pmEZE - ONT
2 stops19h 27mUnited Airlines
Deal found 10/13$1,105
This United Airlines deal was found by Cheapflights users on 10/12. 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.
sáb. 12/136:00 amONT - EZE
2 stops20h 20mUnited Airlines
dom. 12/2810:05 pmEZE - ONT
2 stops19h 33mUnited Airlines
Deal found 10/12$1,110
This United Airlines deal was found by Cheapflights users on 10/13. 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.
jue. 12/116:00 amONT - EZE
1 stop22h 20mUnited Airlines
mié. 1/1411:55 pmEZE - ONT
1 stop27h 03mUnited Airlines
Deal found 10/13$1,114
This United Airlines deal was found by Cheapflights users on 10/13. 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.
sáb. 12/135:05 amONT - EZE
2 stops21h 15mUnited Airlines
mié. 12/2410:05 pmEZE - ONT
2 stops19h 33mUnited Airlines
Deal found 10/13$1,145
This KAYAK deal was found by Cheapflights users on 10/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/277:05 amONT - MDZ
2 stops21h 15mLATAM Airlines
sáb. 2/287:45 pmMDZ - ONT
2 stops20h 53mLATAM Airlines
Deal found 10/14$7,368

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 octubre 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,030
(United Airlines)

One-way from

$462
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$840
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. 12% potential increase in price ($132 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 octubre 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

mié. 1/21

6:00 am-7:20 am

1 stop20h 20m

Buenos Aires Ministro Pistarini

jue. 2/12

10:05 pm-12:18 pm

2 stops19h 13m

$1,030

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

jue. 1/22

6:00 am-7:20 am

1 stop20h 20m

Buenos Aires Ministro Pistarini

mar. 2/24

10:05 pm-12:18 pm

2 stops19h 13m

$1,030

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

mié. 12/10

6:00 am-7:20 am

2 stops20h 20m

Buenos Aires Ministro Pistarini

mié. 12/17

10:05 pm-12:38 pm

2 stops19h 33m

$1,030

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

lun. 2/9

6:00 am-7:20 am

1 stop20h 20m

Buenos Aires Ministro Pistarini

jue. 2/19

10:05 pm-12:18 pm

2 stops19h 13m

$1,030

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

mar. 12/9

6:00 am-7:20 am

2 stops20h 20m

Buenos Aires Ministro Pistarini

mar. 12/16

10:05 pm-12:32 pm

2 stops19h 27m

$1,030

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

lun. 12/8

6:00 am-7:20 am

2 stops20h 20m

Buenos Aires Ministro Pistarini

mar. 12/16

10:05 pm-12:32 pm

2 stops19h 27m

$1,030

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

mié. 1/7

6:00 am-7:20 am

2 stops20h 20m

Buenos Aires Ministro Pistarini

mié. 1/14

11:55 pm-5:43 pm

2 stops22h 48m

$1,030

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

mar. 12/16

6:00 am-7:20 am

1 stop20h 20m

Buenos Aires Ministro Pistarini

mar. 12/23

11:55 pm-9:52 pm

1 stop26h 57m

$1,038

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

mié. 3/11

6:02 am-6:20 am

1 stop20h 18m

Buenos Aires Ministro Pistarini

mié. 3/25

9:05 pm-9:46 pm

1 stop28h 41m

$1,038

OntarioMendoza

ONT - MDZ

ONTMDZ

Ontario

dom. 3/22

1:00 pm-9:20 am

2 stops16h 20m

Mendoza El Plumerillo

mar. 3/24

1:00 pm-9:14 pm

2 stops36h 14m

$2,321

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

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 $269). Flying from Ontario to Argentina in June is currently the most expensive (average of $770). 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 octubre 14, 2025.

One of the essential ways to save on airfare from Ontario to Argentina is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 69% on airfare.

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 octubre 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
8,976 reviews

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

Boarding

7.7

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
8,976 reviews
United Airlines
7.4
Good
8,976 reviews

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

Boarding

7.7

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 16h 20m. Fly via United Airlines or LATAM Airlines to get the fastest option. Ontario and Argentina are separated by a distance of 5599 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, May is the cheapest month in which you can book a flight from Ontario to Argentina (average of $269). Flying from Ontario to Argentina in June is currently the most expensive (average of $770). 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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