What airlines fly to Ontario?

American Airlines, LATAM Airlines and United Airlines are the top three most popular airlines that fly to Ontario from Buenos Aires according to our data. American Airlines is the first choice among our users, with 35% 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.

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

Avianca, United Airlines, and Delta are the most popular carriers 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.

$528 Cheap Flights from Buenos Aires to Ontario in 2025

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0 bags

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Find the cheapest flights from Buenos Aires to Los Angeles

Round-trip

One-way

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Cheap round-trip flights

These are some of the best round-trip flight deals from Buenos Aires to Los Angeles that have been recently found on momondo from popular airlines, departing in the coming months.

6:40 am - 9:55 pmEZE-ONT

19h 15m3 stops

11:25 pm - 12:10 amONT-EZE

20h 45m2 stops

$837Avianca

Find Deal

Sat, Aug 23 - Tue, Sep 16

6:40 am - 9:55 pmEZE-ONT

19h 15m3 stops

11:25 pm - 1:25 amONT-EZE

22h 00m3 stops

$844Avianca

Find Deal

Sat, Aug 23 - Tue, Sep 16

5:55 am - 9:55 pmEZE-ONT

20h 00m3 stops

11:25 pm - 1:25 amONT-EZE

22h 00m3 stops

$863Avianca

Find Deal

Sun, Jun 22 - Sat, Jul 5

1:40 am - 9:55 pmEZE-ONT

24h 15m2 stops

11:25 pm - 5:35 amONT-EZE

26h 10m3 stops

$872Avianca

Find Deal

Wed, Oct 1 - Thu, Oct 23

9:00 pm - 5:40 pmEZE-ONT

24h 40m1 stop

6:00 am - 8:00 amONT-EZE

22h 00m1 stop

$1,086United Airlines

Find Deal

Thu, Jul 3 - Wed, Jul 23

9:00 pm - 9:37 pmEZE-ONT

28h 37m1 stop

6:00 am - 8:00 amONT-EZE

22h 00m1 stop

$1,109United Airlines

Find Deal

Mon, Jun 30 - Mon, Jul 21

9:00 pm - 9:37 pmEZE-ONT

28h 37m1 stop

6:00 am - 8:00 amONT-EZE

22h 00m1 stop

$1,153United Airlines

Find Deal

Fri, Jul 4 - Thu, Jul 24

8:10 pm - 11:07 amEZE-ONT

18h 57m1 stop

10:59 pm - 9:45 amONT-EZE

30h 46m1 stop

$1,676Delta

Find Deal

Fri, Sep 5 - Mon, Sep 22

8:10 pm - 10:38 amEZE-ONT

18h 28m1 stop

11:49 am - 9:45 amONT-EZE

17h 56m1 stop

$1,827Delta

Find Deal

Sun, Jun 22 - Sat, Jul 5

8:10 pm - 11:08 amEZE-ONT

18h 58m1 stop

11:49 am - 9:45 amONT-EZE

17h 56m1 stop

$1,829Delta

Find Deal

Thu, May 29 - Fri, Jun 13

United Airlines flights from Buenos Aires to Ontario

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

United Airlines

Jul 3

EZE9:00 pmBuenos Aires Ministro Pistarini

24h 40m

1 stop

ONT5:40 pmOntario

Jul 23

ONT6:00 amOntario

22h 00m

1 stop

EZE8:00 amBuenos Aires Ministro Pistarini

$1,086

Find similar

United Airlines

Jun 30

EZE9:00 pmBuenos Aires Ministro Pistarini

28h 37m

1 stop

ONT9:37 pmOntario

Jul 21

ONT6:00 amOntario

22h 00m

1 stop

EZE8:00 amBuenos Aires Ministro Pistarini

$1,109

Find similar

United Airlines

Jul 4

EZE9:00 pmBuenos Aires Ministro Pistarini

28h 37m

1 stop

ONT9:37 pmOntario

Jul 24

ONT6:00 amOntario

22h 00m

1 stop

EZE8:00 amBuenos Aires Ministro Pistarini

$1,153

Find similar

Avianca flights from Buenos Aires to Ontario

Our best Avianca deals on Buenos Aires to Ontario flight tickets

Avianca

Aug 23

EZE6:40 amBuenos Aires Ministro Pistarini

19h 15m

3 stops

ONT9:55 pmOntario

Sep 16

ONT11:25 pmOntario

20h 45m

2 stops

EZE12:10 amBuenos Aires Ministro Pistarini

$837

Find similar

Avianca

Aug 23

EZE6:40 amBuenos Aires Ministro Pistarini

19h 15m

3 stops

ONT9:55 pmOntario

Sep 16

ONT11:25 pmOntario

22h 00m

3 stops

EZE1:25 amBuenos Aires Ministro Pistarini

$844

Find similar

Avianca

Jun 22

EZE5:55 amBuenos Aires Ministro Pistarini

20h 00m

3 stops

ONT9:55 pmOntario

Jul 5

ONT11:25 pmOntario

22h 00m

3 stops

EZE1:25 amBuenos Aires Ministro Pistarini

$863

Find similar

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

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Sunday when prices can be found for as low as $1,032. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Buenos Aires to Ontario for around $1,103.

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	$528
Fastest flight time	18h 10m
Direct flights	None
Airports in Ontario	1 airport

The best one-way flight to Ontario from Buenos Aires in the past 72 hours is $528. The best round-trip flight deal from Buenos Aires to Ontario found on momondo in the last 72 hours is $837.

The fastest flight from Buenos Aires to Ontario takes 18h 10m

There are no direct flights from Buenos Aires to Ontario. Popular non-direct route for this connection is Buenos Aires Ministro Pistarini Airport - Ontario Airport.

There is 1 airport near Ontario: Ontario (ONT)

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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 10m.
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.