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

Prices for flights from Buenos Aires to Ontario Airport refresh daily.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Buenos Aires to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$596 Cheap Flights from Buenos Aires to Ontario in 2025/26

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Find the cheapest flights from Buenos Aires to Los Angeles

Round-trip

One-way

Last minute

Cheap round-trip flights

6:15 am - 8:55 pmEZE-ONT

19h 40m3 stops

11:25 pm - 12:10 amONT-EZE

20h 45m2 stops

$1,206Avianca

Find Deal

Tue, Mar 3 - Thu, May 28

4:55 pm - 8:55 pmEZE-ONT

33h 00m2 stops

10:30 pm - 12:35 amONT-EZE

21h 05m2 stops

$1,243Avianca

Find Deal

Wed, Nov 19 - Sun, Dec 7

4:55 pm - 8:55 pmEZE-ONT

33h 00m2 stops

10:30 pm - 5:10 amONT-EZE

25h 40m3 stops

$1,251Avianca

Find Deal

Wed, Nov 19 - Sun, Dec 7

7:35 am - 8:55 pmEZE-ONT

18h 20m2 stops

11:25 pm - 12:10 amONT-EZE

20h 45m2 stops

$1,277Avianca

Find Deal

Sun, Dec 7 - Tue, Apr 7

7:35 am - 8:55 pmEZE-ONT

18h 20m2 stops

10:30 pm - 1:35 amONT-EZE

22h 05m2 stops

$1,290Avianca

Find Deal

Thu, Nov 27 - Thu, Dec 4

7:35 am - 8:55 pmEZE-ONT

18h 20m2 stops

11:25 pm - 5:10 amONT-EZE

25h 45m3 stops

$1,295Avianca

Find Deal

Thu, Nov 27 - Tue, Mar 31

10:05 pm - 12:33 pmEZE-ONT

19h 28m2 stops

6:00 am - 7:20 amONT-EZE

20h 20m1 stop

$1,330United Airlines

Find Deal

Thu, Nov 27 - Thu, Dec 4

10:05 pm - 12:37 pmEZE-ONT

19h 32m2 stops

6:00 am - 7:20 amONT-EZE

20h 20m1 stop

$1,363United Airlines

Find Deal

Thu, Nov 27 - Thu, Dec 4

8:10 pm - 10:26 amEZE-ONT

18h 16m1 stop

7:05 am - 9:00 amONT-EZE

21h 55m1 stop

$1,759Delta

Find Deal

Thu, Oct 9 - Sun, Oct 26

8:10 pm - 10:26 amEZE-ONT

18h 16m1 stop

7:05 am - 5:55 amONT-EZE

18h 50m2 stops

$1,793Multiple Airlines

Find Deal

Thu, Oct 9 - Sun, Oct 26

Delta flights from Buenos Aires to Ontario

Our best Delta deals on Buenos Aires to Ontario flight tickets

Delta

Oct 9

EZE8:10 pmBuenos Aires Ministro Pistarini

18h 16m

1 stop

ONT10:26 amOntario

Oct 26

ONT7:05 amOntario

21h 55m

1 stop

EZE9:00 amBuenos Aires Ministro Pistarini

$1,759

Find similar

Delta

Oct 9

EZE8:10 pmBuenos Aires Ministro Pistarini

23h 43m

2 stops

ONT3:53 pmOntario

Oct 26

ONT6:00 amOntario

23h 00m

2 stops

EZE9:00 amBuenos Aires Ministro Pistarini

$1,826

Find similar

Delta

Oct 5

EZE8:10 pmBuenos Aires Ministro Pistarini

18h 16m

1 stop

ONT10:26 amOntario

Oct 10

ONT7:05 amOntario

18h 50m

2 stops

EZE5:55 amBuenos Aires Ministro Pistarini

$15,413

Find similar

United Airlines flights from Buenos Aires to Ontario

Our best United Airlines deals on Buenos Aires to Ontario flight tickets

United Airlines

Nov 27

EZE10:05 pmBuenos Aires Ministro Pistarini

19h 28m

2 stops

ONT12:33 pmOntario

Dec 4

ONT6:00 amOntario

20h 20m

1 stop

EZE7:20 amBuenos Aires Ministro Pistarini

$1,330

Find similar

United Airlines

Nov 27

EZE10:05 pmBuenos Aires Ministro Pistarini

19h 32m

2 stops

ONT12:37 pmOntario

Dec 4

ONT6:00 amOntario

20h 20m

1 stop

EZE7:20 amBuenos Aires Ministro Pistarini

$1,363

Find similar

United Airlines

Nov 21

EZE10:05 pmBuenos Aires Ministro Pistarini

19h 28m

2 stops

ONT12:33 pmOntario

Dec 1

ONT5:05 amOntario

21h 15m

2 stops

EZE7:20 amBuenos Aires Ministro Pistarini

$1,368

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Tue 3/3

6:15 am-8:55 pm

3 stops19h 40m

Ontario

Thu 5/28

11:25 pm-12:10 am

2 stops20h 45m

$1,206

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Wed 11/19

4:55 pm-8:55 pm

2 stops33h 00m

Ontario

Sun 12/7

10:30 pm-12:35 am

2 stops21h 05m

$1,243

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Wed 11/19

4:55 pm-8:55 pm

2 stops33h 00m

Ontario

Sun 12/7

10:30 pm-5:10 am

3 stops25h 40m

$1,251

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Sun 12/7

7:35 am-8:55 pm

2 stops18h 20m

Ontario

Tue 4/7

11:25 pm-12:10 am

2 stops20h 45m

$1,277

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Thu 11/27

7:35 am-8:55 pm

2 stops18h 20m

Ontario

Thu 12/4

10:30 pm-1:35 am

2 stops22h 05m

$1,290

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Thu 11/27

7:35 am-8:55 pm

2 stops18h 20m

Ontario

Tue 3/31

11:25 pm-5:10 am

3 stops25h 45m

$1,295

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Thu 11/27

10:05 pm-12:33 pm

2 stops19h 28m

Ontario

Thu 12/4

6:00 am-7:20 am

1 stop20h 20m

$1,330

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Thu 11/27

10:05 pm-12:37 pm

2 stops19h 32m

Ontario

Thu 12/4

6:00 am-7:20 am

1 stop20h 20m

$1,363

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Thu 10/9

8:10 pm-10:26 am

1 stop18h 16m

Ontario

Sun 10/26

7:05 am-9:00 am

1 stop21h 55m

$1,759

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Thu 10/9

8:10 pm-10:26 am

1 stop18h 16m

Ontario

Sun 10/26

7:05 am-5:55 am

2 stops18h 50m

$1,793

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 Buenos Aires to Ontario

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

What is the cheapest airline that flies from Buenos Aires to Ontario?

Avianca, Delta, and United Airlines are the most popular carriers operating from Buenos Aires to Ontario

What airlines fly to Ontario?

LATAM Airlines, American Airlines and Delta are the top three most popular airlines that fly to Ontario from Buenos Aires according to our data. LATAM Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 6 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

When to book flights from Buenos Aires to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Buenos Aires to Ontario according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Buenos Aires to Ontario (BUE to ONT) flight deals and tips

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

Direct flights	None

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

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How far is Buenos Aires to Ontario by plane?
Buenos Aires and Ontario are 6094.6 mi apart from one another. By plane, this route typically takes 18h 16m.
When did momondo last update prices for flights from Buenos Aires to Ontario Airport?
Prices for flights from Buenos Aires to Ontario Airport refresh daily.
How old do you have to be to fly from Buenos Aires to Ontario Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Buenos Aires to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Buenos Aires to Ontario. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Ontario from Buenos Aires with this policy.

How can momondo help me find flights from Buenos Aires to Ontario?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Buenos Aires to Ontario.

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

Of course. momondo tracks the price of Buenos Aires to Ontario flights. All you need is a valid email address and we will do the rest; it is that quick and easy.