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.

$404 Cheap Flights from Buenos Aires to Ontario in 2026

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Find the cheapest flights from Buenos Aires to Los Angeles

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:50 am - 9:45 pm

EZE

ONT

18h 55m

2 stops

11:35 pm - 12:10 am

ONT

EZE

20h 35m

2 stops

$838Avianca

Tue, May 5 - Tue, May 19

2:30 am - 9:45 pm

EZE

ONT

47h 15m

2 stops

11:35 pm - 12:10 am

ONT

EZE

20h 35m

2 stops

$883Avianca

Sun, May 31 - Tue, Jun 9

7:30 am - 8:55 pm

EZE

ONT

18h 25m

2 stops

11:30 pm - 12:35 am

ONT

EZE

21h 05m

2 stops

$885Avianca

Thu, Mar 5 - Tue, Mar 17

2:40 am - 8:55 pm

EZE

ONT

23h 15m

2 stops

10:30 pm - 1:35 am

ONT

EZE

22h 05m

2 stops

$901Avianca

Mon, Feb 23 - Sat, Mar 7

7:30 am - 8:55 pm

EZE

ONT

18h 25m

2 stops

10:30 pm - 12:35 am

ONT

EZE

21h 05m

2 stops

$912Avianca

Thu, Feb 26 - Thu, Mar 5

4:55 pm - 8:55 pm

EZE

ONT

33h 00m

2 stops

11:35 pm - 12:10 am

ONT

EZE

20h 35m

2 stops

$1,004Avianca

Fri, Mar 6 - Tue, Mar 31

2:40 am - 8:55 pm

EZE

ONT

23h 15m

2 stops

10:30 pm - 1:35 am

ONT

EZE

22h 05m

2 stops

$1,011Avianca

Fri, Feb 20 - Sat, Mar 7

2:30 am - 9:45 pm

EZE

ONT

47h 15m

2 stops

11:35 pm - 1:25 am

ONT

EZE

45h 50m

2 stops

$1,013Avianca

Sun, Mar 29 - Sat, May 2

6:10 am - 9:45 pm

EZE

ONT

19h 35m

3 stops

11:35 pm - 12:10 am

ONT

EZE

20h 35m

2 stops

$1,033Avianca

Tue, May 5 - Tue, May 19

6:15 am - 8:55 pm

EZE

ONT

19h 40m

3 stops

10:30 pm - 1:35 am

ONT

EZE

22h 05m

2 stops

$1,056Avianca

Tue, Feb 24 - Sat, Mar 7

Avianca flights from Buenos Aires to Ontario

Our best Avianca deals on Buenos Aires to Ontario flight tickets

Avianca

May 5

EZE6:50 amBuenos Aires Ministro Pistarini

18h 55m

2 stops

ONT9:45 pmOntario

May 19

ONT11:35 pmOntario

20h 35m

2 stops

EZE12:10 amBuenos Aires Ministro Pistarini

$838

Avianca

May 31

EZE2:30 amBuenos Aires Ministro Pistarini

47h 15m

2 stops

ONT9:45 pmOntario

Jun 9

ONT11:35 pmOntario

20h 35m

2 stops

EZE12:10 amBuenos Aires Ministro Pistarini

$883

Avianca

Mar 5

EZE7:30 amBuenos Aires Ministro Pistarini

18h 25m

2 stops

ONT8:55 pmOntario

Mar 17

ONT11:30 pmOntario

21h 05m

2 stops

EZE12:35 amBuenos Aires Ministro Pistarini

$885

LATAM Airlines flights from Buenos Aires to Ontario

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

LATAM Airlines

Feb 24

EZE11:55 pmBuenos Aires Ministro Pistarini

17h 07m

1 stop

ONT12:02 pmOntario

Mar 3

ONT1:15 pmOntario

14h 45m

1 stop

EZE9:00 amBuenos Aires Ministro Pistarini

$1,247

LATAM Airlines

Feb 26

EZE11:55 pmBuenos Aires Ministro Pistarini

17h 07m

1 stop

ONT12:02 pmOntario

Mar 5

ONT1:15 pmOntario

14h 45m

1 stop

EZE9:00 amBuenos Aires Ministro Pistarini

$1,389

LATAM Airlines

Feb 2

EZE11:55 pmBuenos Aires Ministro Pistarini

16h 36m

1 stop

ONT11:31 amOntario

Mar 2

ONT1:15 pmOntario

14h 45m

1 stop

EZE9:00 amBuenos Aires Ministro Pistarini

$1,417

Fly from

Fly to

Route

Depart

Return

Price

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Tue 5/5

6:50 am-9:45 pm

2 stops18h 55m

Ontario

Tue 5/19

11:35 pm-12:10 am

2 stops20h 35m

$838

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Sun 5/31

2:30 am-9:45 pm

2 stops47h 15m

Ontario

Tue 6/9

11:35 pm-12:10 am

2 stops20h 35m

$883

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Thu 3/5

7:30 am-8:55 pm

2 stops18h 25m

Ontario

Tue 3/17

11:30 pm-12:35 am

2 stops21h 05m

$885

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Mon 2/23

2:40 am-8:55 pm

2 stops23h 15m

Ontario

Sat 3/7

10:30 pm-1:35 am

2 stops22h 05m

$901

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Thu 2/26

7:30 am-8:55 pm

2 stops18h 25m

Ontario

Thu 3/5

10:30 pm-12:35 am

2 stops21h 05m

$912

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Fri 3/6

4:55 pm-8:55 pm

2 stops33h 00m

Ontario

Tue 3/31

11:35 pm-12:10 am

2 stops20h 35m

$1,004

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Fri 2/20

2:40 am-8:55 pm

2 stops23h 15m

Ontario

Sat 3/7

10:30 pm-1:35 am

2 stops22h 05m

$1,011

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Sun 3/29

2:30 am-9:45 pm

2 stops47h 15m

Ontario

Sat 5/2

11:35 pm-1:25 am

2 stops45h 50m

$1,013

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Tue 5/5

6:10 am-9:45 pm

3 stops19h 35m

Ontario

Tue 5/19

11:35 pm-12:10 am

2 stops20h 35m

$1,033

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Tue 2/24

6:15 am-8:55 pm

3 stops19h 40m

Ontario

Sat 3/7

10:30 pm-1:35 am

2 stops22h 05m

$1,056

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 is the most popular carrier 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 52% 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

Fastest flight time	18h 55m
Direct flights	None

The fastest flight from Buenos Aires to Ontario takes 18h 55m

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

Search flight deals

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 55m.
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.