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 5 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

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

United Airlines is the most popular carrier operating from Buenos Aires to Ontario

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.

$590 Cheap Flights from Buenos Aires to Ontario in 2026

Find the cheapest flights from Buenos Aires to Los Angeles

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2:35 am - 8:50 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

23h 15m2 stops Medellín Jose Maria Cordova Intl San Salvador El Salvador Intl

10:45 pm - 1:25 amONT Ontario-EZE Buenos Aires Ministro Pistarini

21h 40m2 stops San Salvador El Salvador Intl Medellín Jose Maria Cordova Intl

$1,023Avianca

Wed, Dec 16 - Thu, Jan 7

2:30 am - 9:45 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

23h 15m2 stops Medellín Jose Maria Cordova Intl San Salvador El Salvador Intl

11:35 pm - 1:20 amONT Ontario-EZE Buenos Aires Ministro Pistarini

21h 45m2 stops San Salvador El Salvador Intl Medellín Jose Maria Cordova Intl

$1,041Avianca

Mon, Sep 28 - Tue, Oct 20

2:35 am - 8:50 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

23h 15m2 stops Medellín Jose Maria Cordova Intl San Salvador El Salvador Intl

10:45 pm - 12:30 amONT Ontario-EZE Buenos Aires Ministro Pistarini

20h 45m2 stops San Salvador El Salvador Intl Bogotá El Dorado

$1,050Avianca

Mon, Nov 30 - Tue, Dec 8

2:30 am - 9:45 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

23h 15m2 stops Medellín Jose Maria Cordova Intl San Salvador El Salvador Intl

11:35 pm - 1:20 amONT Ontario-EZE Buenos Aires Ministro Pistarini

21h 45m2 stops San Salvador El Salvador Intl Medellín Jose Maria Cordova Intl

$1,078Avianca

Wed, Oct 14 - Tue, Oct 20

1:35 am - 9:45 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

24h 10m2 stops Bogotá El Dorado San Salvador El Salvador Intl

11:35 pm - 1:20 amONT Ontario-EZE Buenos Aires Ministro Pistarini

21h 45m2 stops San Salvador El Salvador Intl Medellín Jose Maria Cordova Intl

$1,078Avianca

Mon, Oct 12 - Tue, Oct 20

4:50 pm - 9:45 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

32h 55m2 stops Bogotá El Dorado San Salvador El Salvador Intl

11:45 pm - 1:25 amONT Ontario-EZE Buenos Aires Ministro Pistarini

21h 40m2 stops San Salvador El Salvador Intl Medellín Jose Maria Cordova Intl

$1,078Avianca

Wed, Sep 16 - Tue, Oct 27

2:35 am - 8:50 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

23h 15m2 stops Medellín Jose Maria Cordova Intl San Salvador El Salvador Intl

10:45 pm - 1:25 amONT Ontario-EZE Buenos Aires Ministro Pistarini

21h 40m2 stops San Salvador El Salvador Intl Medellín Jose Maria Cordova Intl

$1,078Avianca

Mon, Feb 1 - Thu, Feb 18

2:35 am - 8:50 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

23h 15m2 stops Medellín Jose Maria Cordova Intl San Salvador El Salvador Intl

10:45 pm - 1:25 amONT Ontario-EZE Buenos Aires Ministro Pistarini

21h 40m2 stops San Salvador El Salvador Intl Medellín Jose Maria Cordova Intl

$1,078Avianca

Mon, Feb 1 - Sat, Feb 20

7:25 am - 8:50 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

18h 25m2 stops Bogotá El Dorado San Salvador El Salvador Intl

10:45 pm - 1:25 amONT Ontario-EZE Buenos Aires Ministro Pistarini

21h 40m2 stops San Salvador El Salvador Intl Medellín Jose Maria Cordova Intl

$1,078Avianca

Thu, Feb 4 - Tue, Feb 16

2:35 am - 8:50 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

23h 15m2 stops Medellín Jose Maria Cordova Intl San Salvador El Salvador Intl

10:45 pm - 1:25 amONT Ontario-EZE Buenos Aires Ministro Pistarini

21h 40m2 stops San Salvador El Salvador Intl Medellín Jose Maria Cordova Intl

$1,078Avianca

Mon, Feb 1 - Tue, Feb 16

Cheap last minute flights

Enter your travel dates to find the best prices.

4:50 pm - 9:45 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

32h 55m2 stops Bogotá El Dorado San Salvador El Salvador Intl

10:45 pm - 1:25 amONT Ontario-EZE Buenos Aires Ministro Pistarini

21h 40m2 stops San Salvador El Salvador Intl Medellín Jose Maria Cordova Intl

$1,060Avianca

Wed, Sep 9 - Tue, Dec 8

1:10 pm - 7:46 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

34h 36m3 stops Miami Mexico City Benito Juarez Guadalajara Miguel Hidal

12:55 am - 8:15 amONT Ontario-EZE Buenos Aires Ministro Pistarini

27h 20m3 stops Guadalajara Miguel Hidal Cancun Punta Cana

$1,219Multiple Airlines

Mon, Sep 7 - Sun, Sep 13

1:35 am - 9:45 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

24h 10m2 stops Bogotá El Dorado San Salvador El Salvador Intl

11:35 pm - 1:20 amONT Ontario-EZE Buenos Aires Ministro Pistarini

21h 45m2 stops San Salvador El Salvador Intl Medellín Jose Maria Cordova Intl

$1,240Avianca

Wed, Sep 9 - Tue, Sep 29

9:00 pm - 12:50 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

19h 50m2 stops Houston George Bush Intcntl Denver Intl

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

22h 00m1 stop Houston George Bush Intcntl

$1,242United Airlines

Tue, Sep 8 - Sun, Sep 20

9:15 pm - 11:05 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

29h 50m3 stops Punta Cana Mexico City Felipe Ángeles Intl Guadalajara Miguel Hidal

12:55 am - 8:15 amONT Ontario-EZE Buenos Aires Ministro Pistarini

27h 20m3 stops Guadalajara Miguel Hidal Cancun Punta Cana

$1,258Multiple Airlines

Sat, Sep 12 - Sun, Sep 20

9:00 pm - 9:59 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

28h 59m1 stop Houston George Bush Intcntl

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

22h 00m1 stop Houston George Bush Intcntl

$1,264United Airlines

Wed, Sep 9 - Sun, Sep 20

1:10 pm - 7:46 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

34h 36m3 stops Miami Mexico City Benito Juarez Guadalajara Miguel Hidal

9:36 pm - 7:30 amONT Ontario-EZE Buenos Aires Ministro Pistarini

29h 54m3 stops Guadalajara Miguel Hidal Cancun Punta Cana

$1,270Multiple Airlines

Tue, Sep 8 - Thu, Sep 10

9:00 pm - 12:50 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

19h 50m2 stops Houston George Bush Intcntl Denver Intl

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

22h 00m1 stop Houston George Bush Intcntl

$1,273United Airlines

Tue, Sep 8 - Mon, Oct 5

9:00 pm - 12:50 pmEZE Buenos Aires Ministro Pistarini-ONT Ontario

19h 50m2 stops Houston George Bush Intcntl Denver Intl

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

22h 00m1 stop Houston George Bush Intcntl

$1,273United Airlines

Tue, Sep 8 - Tue, Sep 22

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

19h 12m2 stops Houston George Bush Intcntl San Francisco

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

22h 00m1 stop Houston George Bush Intcntl

$1,273United Airlines

Tue, Sep 8 - Mon, Sep 21

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Avianca flights from Buenos Aires to Ontario

Our best Avianca deals on Buenos Aires to Ontario flight tickets

Avianca

Feb 12

EZE4:50 pmBuenos Aires Ministro Pistarini

33h 00m

2 stops

ONT8:50 pmOntario

Feb 27

ONT10:45 pmOntario

21h 40m

2 stops

EZE1:25 amBuenos Aires Ministro Pistarini

$1,022

Avianca

Dec 16

EZE2:35 amBuenos Aires Ministro Pistarini

23h 15m

2 stops

ONT8:50 pmOntario

Jan 7

ONT10:45 pmOntario

21h 40m

2 stops

EZE1:25 amBuenos Aires Ministro Pistarini

$1,023

Avianca

Sep 28

EZE2:30 amBuenos Aires Ministro Pistarini

23h 15m

2 stops

ONT9:45 pmOntario

Oct 20

ONT11:35 pmOntario

21h 45m

2 stops

EZE1:20 amBuenos Aires Ministro Pistarini

$1,041

United Airlines flights from Buenos Aires to Ontario

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

United Airlines

Oct 13

EZE9:00 pmBuenos Aires Ministro Pistarini

28h 59m

1 stop

ONT9:59 pmOntario

Oct 19

ONT6:00 amOntario

22h 00m

1 stop

EZE8:00 amBuenos Aires Ministro Pistarini

$1,241

United Airlines

Sep 8

EZE9:00 pmBuenos Aires Ministro Pistarini

19h 50m

2 stops

ONT12:50 pmOntario

Sep 20

ONT6:00 amOntario

22h 00m

1 stop

EZE8:00 amBuenos Aires Ministro Pistarini

$1,242

United Airlines

Sep 9

EZE9:00 pmBuenos Aires Ministro Pistarini

28h 59m

1 stop

ONT9:59 pmOntario

Sep 20

ONT6:00 amOntario

22h 00m

1 stop

EZE8:00 amBuenos Aires Ministro Pistarini

$1,264

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Buenos AiresOntario

EZE Buenos Aires Ministro Pistarini - ONT Ontario

EZEONT

Buenos Aires Ministro Pistarini

Wed 12/16

2:35 am-8:50 pm

2 stops23h 15m

Ontario

Thu 1/7

10:45 pm-1:25 am

2 stops21h 40m

$1,023

Buenos AiresOntario

EZE Buenos Aires Ministro Pistarini - ONT Ontario

EZEONT

Buenos Aires Ministro Pistarini

Mon 9/28

2:30 am-9:45 pm

2 stops23h 15m

Ontario

Tue 10/20

11:35 pm-1:20 am

2 stops21h 45m

$1,041

Buenos AiresOntario

EZE Buenos Aires Ministro Pistarini - ONT Ontario

EZEONT

Buenos Aires Ministro Pistarini

Mon 11/30

2:35 am-8:50 pm

2 stops23h 15m

Ontario

Tue 12/8

10:45 pm-12:30 am

2 stops20h 45m

$1,050

Buenos AiresOntario

EZE Buenos Aires Ministro Pistarini - ONT Ontario

EZEONT

Buenos Aires Ministro Pistarini

Wed 10/14

2:30 am-9:45 pm

2 stops23h 15m

Ontario

Tue 10/20

11:35 pm-1:20 am

2 stops21h 45m

$1,078

Buenos AiresOntario

EZE Buenos Aires Ministro Pistarini - ONT Ontario

EZEONT

Buenos Aires Ministro Pistarini

Mon 10/12

1:35 am-9:45 pm

2 stops24h 10m

Ontario

Tue 10/20

11:35 pm-1:20 am

2 stops21h 45m

$1,078

Buenos AiresOntario

EZE Buenos Aires Ministro Pistarini - ONT Ontario

EZEONT

Buenos Aires Ministro Pistarini

Wed 9/16

4:50 pm-9:45 pm

2 stops32h 55m

Ontario

Tue 10/27

11:45 pm-1:25 am

2 stops21h 40m

$1,078

Buenos AiresOntario

EZE Buenos Aires Ministro Pistarini - ONT Ontario

EZEONT

Buenos Aires Ministro Pistarini

Mon 2/1

2:35 am-8:50 pm

2 stops23h 15m

Ontario

Thu 2/18

10:45 pm-1:25 am

2 stops21h 40m

$1,078

Buenos AiresOntario

EZE Buenos Aires Ministro Pistarini - ONT Ontario

EZEONT

Buenos Aires Ministro Pistarini

Mon 2/1

2:35 am-8:50 pm

2 stops23h 15m

Ontario

Sat 2/20

10:45 pm-1:25 am

2 stops21h 40m

$1,078

Quickest round-trip

Buenos AiresOntario

EZE Buenos Aires Ministro Pistarini - ONT Ontario

EZEONT

Buenos Aires Ministro Pistarini

Thu 2/4

7:25 am-8:50 pm

2 stops18h 25m

Ontario

Tue 2/16

10:45 pm-1:25 am

2 stops21h 40m

$1,078

Buenos AiresOntario

EZE Buenos Aires Ministro Pistarini - ONT Ontario

EZEONT

Buenos Aires Ministro Pistarini

Mon 2/1

2:35 am-8:50 pm

2 stops23h 15m

Ontario

Tue 2/16

10:45 pm-1:25 am

2 stops21h 40m

$1,078

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

Prices

Airlines

Can stopping save me money on Buenos Aires to Ontario flights?

You could potentially save up to 60% on your flight if you consider stops on a Buenos Aires to Ontario flight.

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

Best Price Found	$590
Fastest flight time	17h 30m
Direct flights	None

The best one-way flight to Ontario from Buenos Aires in the past 72 hours is $590. The best round-trip flight deal from Buenos Aires to Ontario found on momondo in the last 72 hours is $1,023.

The fastest flight from Buenos Aires to Ontario takes 17h 30m

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

Search flight deals

Frequently asked questions about flying from Buenos Aires to Ontario

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 17h 30m.
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.

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Cheap flights from Buenos Aires to Los Angeles from $590

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Buenos Aires to Los Angeles departing on 11/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Avianca flights from Buenos Aires to Ontario

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How to get the cheapest flight ticket from Buenos Aires to Ontario

Can stopping save me money on Buenos Aires to Ontario flights?

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What airlines fly to Ontario?

When to book flights from Buenos Aires to Ontario

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

Best Price Found

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Frequently asked questions about flying from Buenos Aires to Ontario

Why use momondo?

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

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Fly your favorite airline to Los Angeles

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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List of cabin classes available on flights landing in Los Angeles. Availability may vary depending on flight origin and airline.

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