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Argentina

$401+ 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 3/16. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — EZE
Apr 7 — Apr 141
Tue 4/7
Tue 4/14
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 March 8, 2026.

This Mytrip deal was found by Cheapflights users on 3/6. 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.
Mon 6/159:36 pm
ONT
-
EZE
3 stops25h 24m
Multiple Airlines
Wed 6/172:30 am
EZE
-
ONT
2 stops23h 15m
Multiple Airlines
Deal found 3/6$927
This Mytrip deal was found by Cheapflights users on 3/3. 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 5/511:35 pm
ONT
-
EZE
3 stops25h 25m
Avianca
Fri 5/84:50 pm
EZE
-
ONT
2 stops32h 55m
Avianca
Deal found 3/3$947
This Mytrip deal was found by Cheapflights users on 3/4. 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.
Sun 5/3112:55 am
ONT
-
EZE
3 stops29h 05m
Multiple Airlines
Mon 6/154:50 pm
EZE
-
ONT
2 stops32h 55m
Multiple Airlines
Deal found 3/4$955
This Mytrip deal was found by Cheapflights users on 3/4. 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.
Mon 6/19:13 pm
ONT
-
EZE
3 stops28h 27m
Multiple Airlines
Wed 6/32:30 am
EZE
-
ONT
2 stops23h 15m
Multiple Airlines
Deal found 3/4$966
This Mytrip deal was found by Cheapflights users on 3/6. 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.
Sat 5/3011:35 pm
ONT
-
EZE
3 stops25h 25m
Avianca
Mon 6/12:30 am
EZE
-
ONT
2 stops23h 15m
Avianca
Deal found 3/6$975
This Mytrip deal was found by Cheapflights users on 3/7. 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 5/1411:35 pm
ONT
-
EZE
3 stops25h 25m
Avianca
Wed 5/202:30 am
EZE
-
ONT
2 stops23h 15m
Avianca
Deal found 3/7$977
This Mytrip deal was found by Cheapflights users on 3/3. 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.
Sun 3/812:27 am
ONT
-
EZE
3 stops29h 53m
Multiple Airlines
Fri 3/139:15 pm
EZE
-
ONT
3 stops29h 22m
Multiple Airlines
Deal found 3/3$985
This Mytrip deal was found by Cheapflights users on 3/4. 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 3/511:02 pm
ONT
-
EZE
3 stops30h 13m
Multiple Airlines
Wed 3/112:40 am
EZE
-
ONT
2 stops23h 15m
Multiple Airlines
Deal found 3/4$992
This Mytrip deal was found by Cheapflights users on 3/4. 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 9/159:13 pm
ONT
-
EZE
3 stops32h 47m
Multiple Airlines
Wed 9/301:35 am
EZE
-
ONT
2 stops24h 10m
Multiple Airlines
Deal found 3/4$994
This Mytrip deal was found by Cheapflights users on 3/3. 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.
Sat 3/1412:27 am
ONT
-
EZE
3 stops23h 18m
Multiple Airlines
Wed 3/259:15 pm
EZE
-
ONT
3 stops29h 22m
Multiple Airlines
Deal found 3/3$1,007
This Mytrip deal was found by Cheapflights users on 3/6. 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.
Sat 9/1911:35 pm
ONT
-
EZE
3 stops25h 25m
Multiple Airlines
Fri 10/22:30 am
EZE
-
ONT
2 stops23h 15m
Multiple Airlines
Deal found 3/6$1,013
This Mytrip deal was found by Cheapflights users on 3/3. 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 3/1012:27 am
ONT
-
EZE
3 stops29h 53m
Multiple Airlines
Wed 4/229:15 pm
EZE
-
ONT
3 stops29h 50m
Multiple Airlines
Deal found 3/3$1,016

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 March 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$927
(Mytrip)

One-way from

$401
(Mytrip)
Provider with most accurate pricing for Ontario-Buenos Aires (BUE) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Buenos Aires (BUE) flights.
Search Deals
From Ontario to Argentina
Search Deals
One-way flight from Ontario to Argentina
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 March 8, 2026.
Use the filters below to find and compare flights from Ontario to Argentina that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Thu 5/14

6:00 am-8:00 am

2 stops22h 00m

Buenos Aires Ministro Pistarini

Thu 5/21

9:00 pm-12:47 pm

2 stops19h 47m

$1,101

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Fri 5/15

6:59 pm-8:00 am

2 stops33h 01m

Buenos Aires Ministro Pistarini

Mon 5/25

9:00 pm-9:55 pm

1 stop28h 55m

$1,154

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Thu 4/16

6:00 am-8:00 am

2 stops22h 00m

Buenos Aires Ministro Pistarini

Tue 4/28

9:00 pm-12:20 pm

2 stops19h 20m

$1,176

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Thu 4/23

6:00 am-8:00 am

2 stops22h 00m

Buenos Aires Ministro Pistarini

Fri 5/8

9:00 pm-12:22 pm

2 stops19h 22m

$1,216

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Fri 4/24

6:05 am-8:00 am

1 stop21h 55m

Buenos Aires Ministro Pistarini

Tue 5/5

9:00 pm-12:38 pm

2 stops19h 38m

$1,216

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Tue 5/5

6:00 am-8:00 am

2 stops22h 00m

Buenos Aires Ministro Pistarini

Sun 5/17

9:00 pm-12:22 pm

2 stops19h 22m

$1,216
Quickest round-trip

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Fri 5/22

6:00 am-8:00 am

2 stops22h 00m

Buenos Aires Ministro Pistarini

Mon 6/1

9:00 pm-12:12 pm

2 stops19h 12m

$1,216

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Fri 4/17

6:05 am-8:00 am

1 stop21h 55m

Buenos Aires Ministro Pistarini

Sat 4/25

9:00 pm-5:47 pm

2 stops24h 47m

$1,256
Cheapest one-way

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Sun 3/22

11:02 pm-10:20 am

3 stops31h 18m

$408

OntarioBuenos Aires

ONT - EZE

ONTEZE

Ontario

Thu 6/4

11:35 pm-1:20 am

2 stops21h 45m

$615

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/8

Showing 1-10 of 20 resultsSorted by cheapest first
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
No data available for this route at this time. Please check back soon.

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. 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.

See more FAQs

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