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Cheap flights from Buenos Aires to Los Angeles from $606

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 6/3. 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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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
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
$915Avianca
Fri, Sep 25 - Tue, Oct 13
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
$922Avianca
Wed, Oct 7 - Sat, Oct 17
Avianca Logo
7:10 am - 9:45 pm
EZE
-
ONT
18h 35m
2 stops
Avianca Logo
11:35 pm - 1:20 am
ONT
-
EZE
21h 45m
2 stops
$969Avianca
Sat, Sep 19 - Sat, Sep 26
Avianca Logo
7:10 am - 9:45 pm
EZE
-
ONT
18h 35m
2 stops
Avianca Logo
11:35 pm - 1:20 am
ONT
-
EZE
21h 45m
2 stops
$991Avianca
Tue, Aug 25 - Sat, Sep 19
Multiple Airlines Logo
2:30 am - 11:05 pm
EZE
-
ONT
24h 35m
3 stops
Multiple Airlines Logo
9:36 pm - 3:45 am
ONT
-
EZE
26h 09m
3 stops
$1,020Multiple Airlines
Sun, May 31 - Mon, Jun 15
Multiple Airlines Logo
9:15 pm - 11:05 pm
EZE
-
ONT
29h 50m
3 stops
Multiple Airlines Logo
12:55 am - 5:00 am
ONT
-
EZE
24h 05m
3 stops
$1,026Multiple Airlines
Fri, Jun 5 - Sat, Jun 13
Avianca Logo
7:10 am - 9:45 pm
EZE
-
ONT
18h 35m
2 stops
Avianca Logo
10:30 pm - 1:35 am
ONT
-
EZE
22h 05m
2 stops
$1,029Avianca
Tue, Aug 18 - Tue, Nov 3
Avianca Logo
7:10 am - 9:45 pm
EZE
-
ONT
18h 35m
2 stops
Avianca Logo
11:35 pm - 1:20 am
ONT
-
EZE
21h 45m
2 stops
$1,031Avianca
Tue, Sep 8 - Tue, Sep 22
Multiple Airlines Logo
4:50 pm - 11:05 pm
EZE
-
ONT
34h 15m
3 stops
Multiple Airlines Logo
9:36 pm - 6:45 am
ONT
-
EZE
29h 09m
3 stops
$1,037Multiple Airlines
Wed, Jun 3 - Tue, Jun 9
Avianca Logo
4:50 pm - 9:45 pm
EZE
-
ONT
32h 55m
2 stops
Avianca Logo
11:35 pm - 1:20 am
ONT
-
EZE
21h 45m
2 stops
$1,041Avianca
Wed, Sep 9 - Tue, Sep 22

LATAM Airlines flights from Buenos Aires to Ontario

Our best LATAM Airlines deals on Buenos Aires to Ontario flight tickets
LATAM Airlines
Jul 6
EZE10:40 pmBuenos Aires Ministro Pistarini
39h 58m
2 stops
ONT10:38 amOntario
Jul 22
ONT7:05 amOntario
22h 35m
2 stops
EZE9:40 amBuenos Aires Ministro Pistarini
$1,441
LATAM Airlines
Jul 6
EZE10:40 pmBuenos Aires Ministro Pistarini
39h 58m
2 stops
ONT10:38 amOntario
Jul 20
ONT7:05 amOntario
31h 45m
2 stops
EZE6:50 pmBuenos Aires Ministro Pistarini
$1,463
LATAM Airlines
Jul 10
EZE1:10 pmBuenos Aires Ministro Pistarini
25h 28m
2 stops
ONT10:38 amOntario
Jul 22
ONT7:05 amOntario
22h 35m
2 stops
EZE9:40 amBuenos Aires Ministro Pistarini
$1,484

Avianca flights from Buenos Aires to Ontario

Our best Avianca deals on Buenos Aires to Ontario flight tickets
Avianca
Sep 25
EZE2:30 amBuenos Aires Ministro Pistarini
23h 15m
2 stops
ONT9:45 pmOntario
Oct 13
ONT11:35 pmOntario
21h 45m
2 stops
EZE1:20 amBuenos Aires Ministro Pistarini
$915
Avianca
Oct 7
EZE2:30 amBuenos Aires Ministro Pistarini
23h 15m
2 stops
ONT9:45 pmOntario
Oct 17
ONT11:35 pmOntario
21h 45m
2 stops
EZE1:20 amBuenos Aires Ministro Pistarini
$922
Avianca
May 13
EZE2:30 amBuenos Aires Ministro Pistarini
23h 15m
2 stops
ONT9:45 pmOntario
May 16
ONT11:35 pmOntario
21h 45m
2 stops
EZE1:20 amBuenos Aires Ministro Pistarini
$931

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 May 11, 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

Fri 9/25

2:30 am-9:45 pm

2 stops23h 15m

Ontario

Tue 10/13

11:35 pm-1:20 am

2 stops21h 45m

$915

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Wed 10/7

2:30 am-9:45 pm

2 stops23h 15m

Ontario

Sat 10/17

11:35 pm-1:20 am

2 stops21h 45m

$922
Quickest round-trip

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Sat 9/19

7:10 am-9:45 pm

2 stops18h 35m

Ontario

Sat 9/26

11:35 pm-1:20 am

2 stops21h 45m

$969

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Tue 8/25

7:10 am-9:45 pm

2 stops18h 35m

Ontario

Sat 9/19

11:35 pm-1:20 am

2 stops21h 45m

$991

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Sun 5/31

2:30 am-11:05 pm

3 stops24h 35m

Ontario

Mon 6/15

9:36 pm-3:45 am

3 stops26h 09m

$1,020

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Fri 6/5

9:15 pm-11:05 pm

3 stops29h 50m

Ontario

Sat 6/13

12:55 am-5:00 am

3 stops24h 05m

$1,026

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Tue 8/18

7:10 am-9:45 pm

2 stops18h 35m

Ontario

Tue 11/3

10:30 pm-1:35 am

2 stops22h 05m

$1,029

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Tue 9/8

7:10 am-9:45 pm

2 stops18h 35m

Ontario

Tue 9/22

11:35 pm-1:20 am

2 stops21h 45m

$1,031

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Wed 6/3

4:50 pm-11:05 pm

3 stops34h 15m

Ontario

Tue 6/9

9:36 pm-6:45 am

3 stops29h 09m

$1,037

Buenos AiresOntario

EZE - ONT

EZEONT

Buenos Aires Ministro Pistarini

Wed 9/9

4:50 pm-9:45 pm

2 stops32h 55m

Ontario

Tue 9/22

11:35 pm-1:20 am

2 stops21h 45m

$1,041

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

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 58% 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.

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.

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