What is the cheapest airline that flies from Ontario to Argentina?

Delta and United Airlines are the most popular carriers operating from Ontario to Argentina

What airlines fly to Argentina?

LATAM Airlines, United Airlines and American Airlines are the top three most popular airlines that fly to Argentina from Ontario according to our data. LATAM Airlines is the first choice among our users, with 58% of people opting to fly with this airline when traveling to Argentina. Keep in mind that there are 7 different airlines that fly to Argentina on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Ontario Airport to Argentina?

Prices for flights from Ontario Airport to Argentina are refreshed on a daily basis.

How old do you have to be to fly from Ontario Airport to Argentina?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Argentina.

What documentation or ID do you need to fly to Argentina?

The required travel and health documents for your Argentina trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Argentina. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$527 Cheap Flights from Ontario to Argentina in 2026/27

Find the cheapest flights from Ontario to Argentina

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:01 pm - 6:35 amONT Ontario-EZE Buenos Aires Ministro Pistarini

35h 34m3 stops Las Vegas Harry Reid Intl Miami Punta Cana

2:40 am - 10:15 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

24h 35m3 stops Medellín Jose Maria Cordova Intl Bogotá El Dorado Guadalajara Miguel Hidal

$1,088Multiple Airlines

Thu, Nov 26 - Mon, Dec 7

8:35 pm - 4:00 amONT Ontario-EZE Buenos Aires Ministro Pistarini

26h 25m3 stops Las Vegas Harry Reid Intl Chicago O'Hare Intl Punta Cana

2:40 pm - 5:23 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

31h 43m2 stops Miami Houston George Bush Intcntl

$1,113Multiple Airlines

Fri, Nov 13 - Thu, Nov 26

6:00 am - 7:20 amONT Ontario-EZE Buenos Aires Ministro Pistarini

20h 20m1 stop Houston George Bush Intcntl

10:55 pm - 5:47 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

22h 52m2 stops Houston George Bush Intcntl San Francisco

$1,168United Airlines

Mon, Mar 1 - Mon, Mar 22

6:00 am - 6:20 amONT Ontario-EZE Buenos Aires Ministro Pistarini

20h 20m1 stop Houston George Bush Intcntl

10:55 pm - 5:47 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

22h 52m2 stops Houston George Bush Intcntl San Francisco

$1,168United Airlines

Mon, Mar 15 - Mon, Mar 22

6:00 am - 7:20 amONT Ontario-EZE Buenos Aires Ministro Pistarini

20h 20m1 stop Houston George Bush Intcntl

9:05 pm - 5:47 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

24h 42m2 stops Houston George Bush Intcntl San Francisco

$1,168United Airlines

Thu, Feb 18 - Tue, Mar 16

6:00 am - 7:20 amONT Ontario-EZE Buenos Aires Ministro Pistarini

20h 20m1 stop Houston George Bush Intcntl

9:05 pm - 5:47 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

24h 42m2 stops Houston George Bush Intcntl San Francisco

$1,168United Airlines

Mon, Feb 22 - Tue, Mar 16

6:00 am - 7:20 amONT Ontario-EZE Buenos Aires Ministro Pistarini

20h 20m1 stop Houston George Bush Intcntl

9:05 pm - 5:47 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

24h 42m2 stops Houston George Bush Intcntl San Francisco

$1,168United Airlines

Tue, Feb 16 - Tue, Mar 16

6:00 am - 7:20 amONT Ontario-EZE Buenos Aires Ministro Pistarini

20h 20m1 stop Houston George Bush Intcntl

9:05 pm - 5:47 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

24h 42m2 stops Houston George Bush Intcntl San Francisco

$1,168United Airlines

Wed, Feb 17 - Tue, Mar 16

12:00 pm - 6:35 pmONT Ontario-EZE Buenos Aires Ministro Pistarini

25h 35m2 stops Atlanta Hartsfield-Jackson Lima J Chavez Intl

12:20 pm - 11:27 amEZE Buenos Aires Ministro Pistarini-ONT Ontario

27h 07m2 stops Miami Atlanta Hartsfield-Jackson

$1,172Delta

Thu, Feb 18 - Wed, Mar 17

12:00 pm - 6:35 pmONT Ontario-EZE Buenos Aires Ministro Pistarini

25h 35m2 stops Atlanta Hartsfield-Jackson Lima J Chavez Intl

12:20 pm - 11:27 amEZE Buenos Aires Ministro Pistarini-ONT Ontario

27h 07m2 stops Miami Atlanta Hartsfield-Jackson

$1,172Delta

Thu, Feb 18 - Mon, Mar 15

Cheap last minute flights

Enter your travel dates to find the best prices.

6:00 am - 9:45 amONT Ontario-EZE Buenos Aires Ministro Pistarini

23h 45m2 stops Salt Lake City Atlanta Hartsfield-Jackson

8:10 pm - 12:36 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

20h 26m2 stops Atlanta Hartsfield-Jackson Salt Lake City

$1,230Delta

Thu, Oct 8 - Wed, Oct 14

6:20 am - 9:45 amONT Ontario-EZE Buenos Aires Ministro Pistarini

23h 25m2 stops Seattle/Tacoma Intl Atlanta Hartsfield-Jackson

1:10 pm - 11:06 amEZE Buenos Aires Ministro Pistarini-ONT Ontario

25h 56m2 stops Miami Atlanta Hartsfield-Jackson

$1,230Delta

Tue, Oct 6 - Tue, Oct 20

9:36 pm - 10:00 amONT Ontario-EZE Buenos Aires Ministro Pistarini

32h 24m3 stops Guadalajara Miguel Hidal Mexico City Felipe Ángeles Intl Punta Cana

7:10 pm - 9:50 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

30h 40m3 stops Santiago Arturo Merino Benitez Bogotá El Dorado San Salvador El Salvador Intl

$1,292Multiple Airlines

Tue, Oct 6 - Wed, Oct 28

6:00 am - 8:00 amONT Ontario-EZE Buenos Aires Ministro Pistarini

22h 00m1 stop Houston George Bush Intcntl

9:00 pm - 12:46 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

19h 46m2 stops Houston George Bush Intcntl Denver Intl

$1,302United Airlines

Tue, Oct 6 - Wed, Oct 14

6:00 am - 8:00 amONT Ontario-EZE Buenos Aires Ministro Pistarini

22h 00m1 stop Houston George Bush Intcntl

9:00 pm - 3:22 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

22h 22m2 stops Houston George Bush Intcntl San Francisco

$1,302United Airlines

Tue, Oct 6 - Wed, Oct 14

6:00 am - 8:00 amONT Ontario-EZE Buenos Aires Ministro Pistarini

22h 00m1 stop Houston George Bush Intcntl

9:00 pm - 12:46 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

19h 46m2 stops Houston George Bush Intcntl Denver Intl

$1,302United Airlines

Tue, Oct 6 - Tue, Oct 20

8:03 am - 8:00 amONT Ontario-EZE Buenos Aires Ministro Pistarini

19h 57m2 stops San Francisco Houston George Bush Intcntl

9:00 pm - 12:46 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

19h 46m2 stops Houston George Bush Intcntl Denver Intl

$1,302United Airlines

Wed, Oct 7 - Thu, Oct 15

8:03 am - 8:00 amONT Ontario-EZE Buenos Aires Ministro Pistarini

19h 57m2 stops San Francisco Houston George Bush Intcntl

9:00 pm - 12:46 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

19h 46m2 stops Houston George Bush Intcntl Denver Intl

$1,302United Airlines

Tue, Oct 6 - Wed, Oct 14

8:03 am - 8:00 amONT Ontario-EZE Buenos Aires Ministro Pistarini

19h 57m2 stops San Francisco Houston George Bush Intcntl

9:00 pm - 12:46 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

19h 46m2 stops Houston George Bush Intcntl Denver Intl

$1,302United Airlines

Tue, Oct 6 - Tue, Oct 20

9:45 am - 9:45 amONT Ontario-EZE Buenos Aires Ministro Pistarini

20h 00m2 stops Salt Lake City Atlanta Hartsfield-Jackson

7:20 am - 11:59 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

21h 39m2 stops Lima J Chavez Intl Salt Lake City

$1,308Delta

Thu, Oct 8 - Mon, Dec 21

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Avianca flights from Ontario to Argentina

Our best Avianca deals on Ontario to Argentina flight tickets

Avianca

Nov 22

ONT6:00 amOntario

22h 20m

1 stop

EZE9:20 amBuenos Aires Ministro Pistarini

Nov 30

EZE10:05 pmBuenos Aires Ministro Pistarini

28h 54m

1 stop

ONT9:59 pmOntario

$1,273

Avianca

Oct 13

ONT11:35 pmOntario

21h 45m

2 stops

EZE1:20 amBuenos Aires Ministro Pistarini

Oct 27

EZE7:25 amBuenos Aires Ministro Pistarini

18h 25m

2 stops

ONT9:50 pmOntario

$1,321

Avianca

Oct 13

ONT11:35 pmOntario

21h 45m

2 stops

EZE1:20 amBuenos Aires Ministro Pistarini

Oct 28

EZE7:25 amBuenos Aires Ministro Pistarini

42h 25m

2 stops

ONT9:50 pmOntario

$1,330

Delta flights from Ontario to Argentina

Our best Delta deals on Ontario to Argentina flight tickets

Delta

Feb 18

ONT12:00 pmOntario

25h 35m

2 stops

EZE6:35 pmBuenos Aires Ministro Pistarini

Mar 18

EZE12:20 pmBuenos Aires Ministro Pistarini

27h 07m

2 stops

ONT11:27 amOntario

$1,172

Delta

Nov 26

ONT12:18 pmOntario

33h 42m

2 stops

EZE3:00 amBuenos Aires Ministro Pistarini

Dec 4

EZE7:20 amBuenos Aires Ministro Pistarini

21h 37m

2 stops

ONT11:57 pmOntario

$1,208

Delta

Oct 6

ONT6:20 amOntario

23h 25m

2 stops

EZE9:45 amBuenos Aires Ministro Pistarini

Oct 20

EZE1:10 pmBuenos Aires Ministro Pistarini

25h 56m

2 stops

ONT11:06 amOntario

$1,230

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Thu 11/26

2:01 pm-6:35 am

3 stops35h 34m

Buenos Aires Ministro Pistarini

Mon 12/7

2:40 am-10:15 pm

3 stops24h 35m

$1,088

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Fri 11/13

8:35 pm-4:00 am

3 stops26h 25m

Buenos Aires Ministro Pistarini

Thu 11/26

2:40 pm-5:23 pm

2 stops31h 43m

$1,113

Quickest round-trip

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Mon 3/1

6:00 am-7:20 am

1 stop20h 20m

Buenos Aires Ministro Pistarini

Mon 3/22

10:55 pm-5:47 pm

2 stops22h 52m

$1,168

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Mon 3/15

6:00 am-6:20 am

1 stop20h 20m

Buenos Aires Ministro Pistarini

Mon 3/22

10:55 pm-5:47 pm

2 stops22h 52m

$1,168

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Thu 2/18

6:00 am-7:20 am

1 stop20h 20m

Buenos Aires Ministro Pistarini

Tue 3/16

9:05 pm-5:47 pm

2 stops24h 42m

$1,168

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Mon 2/22

6:00 am-7:20 am

1 stop20h 20m

Buenos Aires Ministro Pistarini

Tue 3/16

9:05 pm-5:47 pm

2 stops24h 42m

$1,168

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Tue 2/16

6:00 am-7:20 am

1 stop20h 20m

Buenos Aires Ministro Pistarini

Tue 3/16

9:05 pm-5:47 pm

2 stops24h 42m

$1,168

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Wed 2/17

6:00 am-7:20 am

1 stop20h 20m

Buenos Aires Ministro Pistarini

Tue 3/16

9:05 pm-5:47 pm

2 stops24h 42m

$1,168

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Thu 2/18

12:00 pm-6:35 pm

2 stops25h 35m

Buenos Aires Ministro Pistarini

Wed 3/17

12:20 pm-11:27 am

2 stops27h 07m

$1,172

OntarioBuenos Aires

ONT Ontario - EZE Buenos Aires Ministro Pistarini

ONTEZE

Ontario

Thu 2/18

12:00 pm-6:35 pm

2 stops25h 35m

Buenos Aires Ministro Pistarini

Mon 3/15

12:20 pm-11:27 am

2 stops27h 07m

$1,172

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Argentina

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Can stopping save me money on Ontario to Argentina flights?

You could potentially save up to 13% on your flight if you consider stops on a Ontario to Argentina flight.

Cheap Ontario to Argentina flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Argentina

Best Price Found	$527
Fastest flight time	18h 55m
Direct flights	None

The best one-way flight to Argentina from Ontario in the past 72 hours is $527. The best round-trip flight deal from Ontario to Argentina found on momondo in the last 72 hours is $1,088.

The fastest flight from Ontario to Argentina takes 18h 55m

There are no direct flights from Ontario to Argentina. There are no popular flight routes from Ontario to Argentina.

Search flight deals

Frequently asked questions about flying from Ontario to Argentina

When did momondo last update prices for flights from Ontario Airport to Argentina?
Prices for flights from Ontario Airport to Argentina are refreshed on a daily basis.
How old do you have to be to fly from Ontario Airport to Argentina?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Argentina.
What documentation or ID do you need to fly to Argentina?
The required travel and health documents for your Argentina trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Argentina. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Argentina?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Argentina from Ontario.

Can I find flights from Ontario to Argentina with flexible booking policies on momondo?

All flight searches from Ontario to Argentina on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Argentina?

Once all potential Ontario to Argentina flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ontario to Argentina right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Argentina, momondo offers a useful price alert feature which will track prices for flights to Argentina from Ontario and alert you when they change.