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

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 36% 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 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.

$497 Cheap Flights from Buenos Aires to Ontario in 2025

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Find the cheapest flights from Buenos Aires to Los Angeles

Round-trip

One-way

Last minute

Cheap round-trip flights

2:30 am - 9:55 pmEZE-ONT

23h 25m3 stops

11:25 pm - 5:35 amONT-EZE

26h 10m3 stops

$974Avianca

Find Deal

Mon, Sep 22 - Thu, Oct 9

6:50 am - 9:55 pmEZE-ONT

43h 05m3 stops

11:25 pm - 1:25 amONT-EZE

22h 00m3 stops

$998Avianca

Find Deal

Wed, Jun 25 - Tue, Aug 26

1:40 am - 9:55 pmEZE-ONT

24h 15m2 stops

11:25 pm - 5:35 amONT-EZE

26h 10m3 stops

$1,003Avianca

Find Deal

Mon, Sep 22 - Thu, Oct 9

9:00 pm - 10:42 pmEZE-ONT

29h 42m2 stops

6:37 pm - 8:00 amONT-EZE

33h 23m2 stops

$1,350United Airlines

Find Deal

Thu, Oct 2 - Sun, Oct 19

10:05 pm - 12:33 pmEZE-ONT

19h 28m2 stops

6:09 am - 7:20 amONT-EZE

20h 11m1 stop

$1,406United Airlines

Find Deal

Thu, Nov 20 - Sun, Nov 30

2:30 am - 9:24 pmEZE-ONT

22h 54m2 stops

6:00 am - 8:00 amONT-EZE

22h 00m1 stop

$2,016

Find Deal

Thu, Oct 2 - Wed, Oct 22

2:30 am - 9:55 pmEZE-ONT

47h 25m2 stops

9:36 am - 2:30 pmONT-EZE

24h 54m3 stops

$2,073

Find Deal

Thu, Oct 2 - Wed, Oct 22

9:00 pm - 9:37 pmEZE-ONT

28h 37m1 stop

6:00 am - 8:00 amONT-EZE

22h 00m1 stop

$2,108Lufthansa

Find Deal

Thu, Jun 26 - Fri, Jul 18

8:10 pm - 7:42 pmEZE-ONT

27h 32m1 stop

7:00 am - 9:00 amONT-EZE

22h 00m1 stop

$2,537Delta

Find Deal

Thu, Oct 9 - Sun, Oct 26

8:10 pm - 7:42 pmEZE-ONT

27h 32m1 stop

7:00 am - 9:00 amONT-EZE

22h 00m1 stop

$2,648Delta

Find Deal

Thu, Oct 9 - Sun, Oct 26

United Airlines flights from Buenos Aires to Ontario

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

United Airlines

Oct 2

EZE9:00 pmBuenos Aires Ministro Pistarini

29h 42m

2 stops

ONT10:42 pmOntario

Oct 19

ONT6:37 pmOntario

33h 23m

2 stops

EZE8:00 amBuenos Aires Ministro Pistarini

$1,350

Find similar

United Airlines

Nov 20

EZE10:05 pmBuenos Aires Ministro Pistarini

19h 28m

2 stops

ONT12:33 pmOntario

Nov 30

ONT6:09 amOntario

20h 11m

1 stop

EZE7:20 amBuenos Aires Ministro Pistarini

$1,406

Find similar

United Airlines

Jul 16

EZE9:00 pmBuenos Aires Ministro Pistarini

29h 52m

2 stops

ONT10:52 pmOntario

Aug 7

ONT6:00 amOntario

22h 00m

1 stop

EZE8:00 amBuenos Aires Ministro Pistarini

$1,454

Find similar

Delta flights from Buenos Aires to Ontario

Our best Delta deals on Buenos Aires to Ontario flight tickets

Delta

Jun 19

EZE8:10 pmBuenos Aires Ministro Pistarini

18h 28m

1 stop

ONT10:38 amOntario

Jul 4

ONT11:49 amOntario

17h 56m

1 stop

EZE9:45 amBuenos Aires Ministro Pistarini

$1,858

Find similar

Delta

Jun 20

EZE8:10 pmBuenos Aires Ministro Pistarini

18h 28m

1 stop

ONT10:38 amOntario

Jul 3

ONT11:49 amOntario

17h 56m

1 stop

EZE9:45 amBuenos Aires Ministro Pistarini

$2,255

Find similar

Delta

Jun 20

EZE8:10 pmBuenos Aires Ministro Pistarini

18h 28m

1 stop

ONT10:38 amOntario

Jul 3

ONT11:49 amOntario

17h 56m

1 stop

EZE9:45 amBuenos Aires Ministro Pistarini

$2,259

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	$497
Fastest flight time	18h 20m
Direct flights	None
Airports in Ontario	1 airport

The best one-way flight to Ontario from Buenos Aires in the past 72 hours is $497. The best round-trip flight deal from Buenos Aires to Ontario found on momondo in the last 72 hours is $974.

The fastest flight from Buenos Aires to Ontario takes 18h 20m

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 20m.
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.