Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Buenos Aires to Los Angeles from $540

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 8/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Buenos Aires to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Avianca Logo
4:50 pm - 9:45 pm
EZE
-
ONT
32h 55m
2 stops
Avianca Logo
11:35 pm - 12:25 am
ONT
-
EZE
20h 50m
2 stops
$852Avianca
Mon, Aug 3 - Tue, Aug 25
Avianca Logo
2:30 am - 9:45 pm
EZE
-
ONT
23h 15m
2 stops
Avianca Logo
11:35 pm - 1:20 am
ONT
-
EZE
21h 45m
2 stops
$854Avianca
Wed, Aug 12 - Tue, Sep 29
Avianca Logo
7:30 am - 8:55 pm
EZE
-
ONT
18h 25m
2 stops
Avianca Logo
10:30 pm - 3:50 pm
ONT
-
EZE
36h 20m
2 stops
$862Avianca
Tue, Dec 22 - Tue, Jan 26
Avianca Logo
4:50 pm - 9:45 pm
EZE
-
ONT
32h 55m
2 stops
Avianca Logo
11:30 pm - 1:35 am
ONT
-
EZE
22h 05m
2 stops
$864Avianca
Mon, Sep 28 - Sat, Oct 31
Avianca Logo
4:50 pm - 9:45 pm
EZE
-
ONT
32h 55m
2 stops
Avianca Logo
11:30 pm - 1:35 am
ONT
-
EZE
22h 05m
2 stops
$874Avianca
Mon, Sep 28 - Thu, Oct 29
Avianca Logo
2:30 am - 9:45 pm
EZE
-
ONT
23h 15m
2 stops
Avianca Logo
11:35 pm - 1:20 am
ONT
-
EZE
21h 45m
2 stops
$892Avianca
Fri, Aug 28 - Sat, Sep 12
Avianca Logo
4:50 pm - 9:45 pm
EZE
-
ONT
32h 55m
2 stops
Avianca Logo
11:35 pm - 12:25 am
ONT
-
EZE
20h 50m
2 stops
$902Avianca
Mon, Aug 10 - Sat, Sep 26
Avianca Logo
4:50 pm - 9:45 pm
EZE
-
ONT
32h 55m
2 stops
Avianca Logo
11:35 pm - 3:40 pm
ONT
-
EZE
36h 05m
2 stops
$909Avianca
Wed, Sep 9 - Thu, Oct 8
Multiple Airlines Logo
9:15 pm - 11:05 pm
EZE
-
ONT
29h 50m
3 stops
Multiple Airlines Logo
9:36 pm - 9:16 am
ONT
-
EZE
31h 40m
3 stops
$911Multiple Airlines
Wed, Sep 9 - Thu, Oct 8
Avianca Logo
4:50 pm - 9:45 pm
EZE
-
ONT
32h 55m
2 stops
Avianca Logo
11:30 pm - 1:35 am
ONT
-
EZE
22h 05m
2 stops
$912Avianca
Fri, Sep 25 - Thu, Oct 29

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Avianca flights from Buenos Aires to Ontario

Our best Avianca deals on Buenos Aires to Ontario flight tickets
Avianca
Aug 3
EZE4:50 pmBuenos Aires Ministro Pistarini
32h 55m
2 stops
ONT9:45 pmOntario
Aug 25
ONT11:35 pmOntario
20h 50m
2 stops
EZE12:25 amBuenos Aires Ministro Pistarini
$852
Avianca
Aug 12
EZE2:30 amBuenos Aires Ministro Pistarini
23h 15m
2 stops
ONT9:45 pmOntario
Sep 29
ONT11:35 pmOntario
21h 45m
2 stops
EZE1:20 amBuenos Aires Ministro Pistarini
$854
Avianca
Dec 22
EZE7:30 amBuenos Aires Ministro Pistarini
18h 25m
2 stops
ONT8:55 pmOntario
Jan 26
ONT10:30 pmOntario
36h 20m
2 stops
EZE3:50 pmBuenos Aires Ministro Pistarini
$862

United Airlines flights from Buenos Aires to Ontario

Our best United Airlines deals on Buenos Aires to Ontario flight tickets
United Airlines
Jul 9
EZE9:00 pmBuenos Aires Ministro Pistarini
28h 55m
1 stop
ONT9:55 pmOntario
Jul 28
ONT5:45 amOntario
22h 15m
1 stop
EZE8:00 amBuenos Aires Ministro Pistarini
$1,426
United Airlines
Jul 10
EZE9:00 pmBuenos Aires Ministro Pistarini
19h 47m
2 stops
ONT12:47 pmOntario
Jul 28
ONT5:45 amOntario
22h 15m
1 stop
EZE8:00 amBuenos Aires Ministro Pistarini
$1,434
United Airlines
Jul 14
EZE9:00 pmBuenos Aires Ministro Pistarini
27h 42m
2 stops
ONT8:42 pmOntario
Aug 6
ONT5:45 amOntario
22h 15m
1 stop
EZE8:00 amBuenos Aires Ministro Pistarini
$1,439

momondo Fare Finder

 
Customize your flight search to find flights from Buenos Aires to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated July 8, 2026.
Use the filters below to find and compare flights from Buenos Aires to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Mon 8/3

4:50 pm-9:45 pm

2 stops32h 55m

Ontario

Tue 8/25

11:35 pm-12:25 am

2 stops20h 50m

$852
Quickest round-trip

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Wed 8/12

2:30 am-9:45 pm

2 stops23h 15m

Ontario

Tue 9/29

11:35 pm-1:20 am

2 stops21h 45m

$854

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Tue 12/22

7:30 am-8:55 pm

2 stops18h 25m

Ontario

Tue 1/26

10:30 pm-3:50 pm

2 stops36h 20m

$862

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Mon 9/28

4:50 pm-9:45 pm

2 stops32h 55m

Ontario

Sat 10/31

11:30 pm-1:35 am

2 stops22h 05m

$864

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Mon 9/28

4:50 pm-9:45 pm

2 stops32h 55m

Ontario

Thu 10/29

11:30 pm-1:35 am

2 stops22h 05m

$874

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Fri 8/28

2:30 am-9:45 pm

2 stops23h 15m

Ontario

Sat 9/12

11:35 pm-1:20 am

2 stops21h 45m

$892

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Mon 8/10

4:50 pm-9:45 pm

2 stops32h 55m

Ontario

Sat 9/26

11:35 pm-12:25 am

2 stops20h 50m

$902

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Wed 9/9

4:50 pm-9:45 pm

2 stops32h 55m

Ontario

Thu 10/8

11:35 pm-3:40 pm

2 stops36h 05m

$909

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Wed 9/9

9:15 pm-11:05 pm

3 stops29h 50m

Ontario

Thu 10/8

9:36 pm-9:16 am

3 stops31h 40m

$911

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Fri 9/25

4:50 pm-9:45 pm

2 stops32h 55m

Ontario

Thu 10/29

11:30 pm-1:35 am

2 stops22h 05m

$912

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Los Angeles from

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

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

You could potentially save up to 54% 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

Fastest flight time

18h 25m

Direct flights

None
The fastest flight from Buenos Aires to Ontario takes 18h 25m
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 18h 25m.

  • 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.

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 8/7
Fri 8/14
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States