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$330+ Cheap flights from Irvine, CA to Buenos Aires (BUE)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BUE
Okt 16 — Okt 231
Do 10/16
Do 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from Irvine to Buenos Aires are usually found in September or August, booked 28 days in advance, depart on a Monday or Wednesday and return on a Tuesday

Cheap flight deals from Irvine to Buenos Aires

Keep the following information in mind while searching for Irvine to Buenos Aires flight deals. Data was last updated September 16, 2025.

Round-trip from

$617
(Cheapflightsfares)

One-way from

$330
(Expedia)

Popular in

December

Cheapest in

September

Average price

$837
From Irvine to Buenos Aires (BUE)
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One-way flight from Irvine to Buenos Aires (BUE)
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Highest demand for flights based on searches. 12% potential increase in price ($136 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($47 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Irvine to Buenos Aires

Cheapest flights from Irvine to Buenos Aires
Explore the most affordable flight options available from Irvine to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Flysmarter deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 11/1111:20 pmLAX - EZE
2 stops25h 30mAvianca
Mo 11/177:35 amEZE - LAX
2 stops33h 55mAvianca
Deal found 9/13$640
This Priceline deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
So 10/2612:20 amLAX - EZE
2 stops25h 30mAvianca
Do 10/304:55 pmEZE - LAX
2 stops23h 40mAvianca
Deal found 9/14$653
This Priceline deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fr 10/102:50 pmLAX - EZE
2 stops29h 20mAvianca
Do 10/231:40 amEZE - LAX
2 stops24h 50mAvianca
Deal found 9/13$654
This Priceline deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
So 10/2611:55 pmLAX - EZE
2 stops25h 55mAvianca
Mi 11/54:55 pmEZE - LAX
3 stops24h 35mAvianca
Deal found 9/14$660
This Gotogate deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
So 10/122:50 pmLAX - EZE
2 stops29h 20mAvianca
Di 11/44:55 pmEZE - LAX
2 stops33h 20mAvianca
Deal found 9/14$664
This Priceline deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 11/510:55 pmLAX - EZE
2 stops25h 55mAvianca
Mi 11/127:35 amEZE - LAX
2 stops19h 25mAvianca
Deal found 9/15$668
This Priceline deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 11/1811:20 pmLAX - EZE
2 stops25h 30mAvianca
So 11/237:35 amEZE - LAX
2 stops33h 55mAvianca
Deal found 9/14$669
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 11/272:30 pmLAX - EZE
1 stop23h 13mMultiple Airlines
Mo 12/84:55 pmEZE - LAX
2 stops23h 40mMultiple Airlines
Deal found 9/16$681
This CheapOair deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fr 11/142:30 pmLAX - AEP
1 stop19h 10mLATAM Airlines
So 11/1611:30 amAEP - LAX
1 stop23h 45mLATAM Airlines
Deal found 9/14$687
This LATAM Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 11/128:35 pmLAX - AEP
1 stop17h 05mLATAM Airlines
Fr 11/146:20 pmAEP - LAX
1 stop17h 00mLATAM Airlines
Deal found 9/15$697
This Priceline deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
So 10/2612:20 amLAX - AEP
2 stops25h 20mAvianca
Do 10/307:00 amAEP - LAX
2 stops20h 00mAvianca
Deal found 9/14$717
This LATAM Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mo 10/62:00 pmLAX - AEP
1 stop23h 00mLATAM Airlines
Mi 10/810:35 amAEP - LAX
2 stops25h 10mLATAM Airlines
Deal found 9/15$729

Cheapflights Fare Finder

 
Customize your flight search to find flights from Irvine to Buenos Aires 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, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Irvine to Buenos Aires that are best for you.

Fly from

Irvine

Fly to

Buenos Aires

Route

Depart

Return

Price

Los AngelesBuenos Aires

LAX - EZE

LAXEZE

Los Angeles

Mo 11/17

10:35 am-5:55 am

1 stop14h 20m

Buenos Aires Ministro Pistarini

So 12/7

4:05 am-6:00 pm

1 stop18h 55m

$751

Los AngelesBuenos Aires

LAX - AEP

LAXAEP

Los Angeles

Do 3/12

11:35 am-4:00 pm

1 stop24h 25m

Buenos Aires Jorge Newbery

So 3/22

5:15 pm-7:50 am

1 stop18h 35m

$751

Los AngelesBuenos Aires

LAX - AEP

LAXAEP

Los Angeles

Mi 11/12

2:30 pm-7:40 pm

1 stop24h 10m

Buenos Aires Jorge Newbery

Do 11/20

5:15 pm-6:50 am

1 stop18h 35m

$751

Los AngelesBuenos Aires

LAX - AEP

LAXAEP

Los Angeles

Mi 11/19

2:30 pm-7:40 pm

1 stop24h 10m

Buenos Aires Jorge Newbery

Mo 12/8

7:00 am-10:00 pm

2 stops20h 00m

$753

Los AngelesBuenos Aires

LAX - AEP

LAXAEP

Los Angeles

Di 11/18

6:15 am-7:55 am

2 stops20h 40m

Buenos Aires Jorge Newbery

Fr 11/21

11:30 am-6:15 am

1 stop23h 45m

$755

Los AngelesBuenos Aires

LAX - EZE

LAXEZE

Los Angeles

Mi 12/3

10:19 am-7:20 am

1 stop16h 01m

Buenos Aires Ministro Pistarini

Sa 12/13

10:05 pm-9:09 am

1 stop16h 04m

$757

Los AngelesBuenos Aires

LAX - EZE

LAXEZE

Los Angeles

Fr 12/5

10:25 am-10:15 am

1 stop18h 50m

Buenos Aires Ministro Pistarini

Mo 12/15

8:55 pm-10:09 am

1 stop18h 14m

$758

Los AngelesBuenos Aires

LAX - AEP

LAXAEP

Los Angeles

Mo 10/27

11:35 am-10:30 am

2 stops18h 55m

Buenos Aires Jorge Newbery

So 11/16

2:55 pm-6:20 am

1 stop20h 25m

$761

Los AngelesBuenos Aires

LAX - AEP

LAXAEP

Los Angeles

Do 10/30

9:15 pm-6:40 pm

1 stop17h 25m

Buenos Aires Jorge Newbery

Di 11/18

3:40 pm-6:15 am

1 stop19h 35m

$761

Los AngelesBuenos Aires

LAX - EZE

LAXEZE

Los Angeles

Mi 10/29

12:19 pm-2:00 pm

2 stops21h 41m

Buenos Aires Ministro Pistarini

Mi 11/12

7:50 am-6:00 pm

1 stop15h 10m

$765

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 46 results
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Best time to book a flight from Irvine to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Irvine with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Irvine to Buenos Aires

How far ahead should I book a flight from Irvine to Buenos Aires?

Use this chart to determine the optimal time to book a round-trip flight from Irvine to Buenos Aires. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from Irvine to Buenos Aires, you should look to book at least 28 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Irvine to Buenos Aires?

Currently, April is the cheapest month in which you can book a flight from Irvine to Buenos Aires (average of $795). Flying from Irvine to Buenos Aires in December is currently the most expensive (average of $1,260). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IR9 to BUE?

Find hourly flight availability from Irvine to Buenos Aires. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

When flying from Irvine to Buenos Aires, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Irvine to Buenos Aires?

Use this chart to determine the cheapest time to fly round-trip from Irvine to Buenos Aires. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Irvine to Buenos Aires flight should consider departing on Tuesday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Buenos Aires

Get insights into the airlines that provide service to Buenos Aires. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Buenos Aires. Reviews last updated September 16, 2025.
Read through reviews of airlines operating flights from Irvine to Buenos Aires, such as Delta, Copa Airlines, and LATAM Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Copa Airlines
7.6
Good
1,531 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
LATAM Airlines
7.5
Good
1,847 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,929 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Irvine to Buenos Aires. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Irvine to Buenos Aires?

    Airlines like Delta, LATAM Airlines, and United Airlines fly from Irvine to Buenos Aires in about 14h 20m. The time it takes to get you to your destination can typically vary by up to 10h 05m. The distance between Irvine and Buenos Aires is about 6123 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Irvine to Buenos Aires one-way?

    The cheapest airlines for a one-way flight from Irvine to Buenos Aires are LATAM Airlines ($330), American Airlines ($334), and Delta ($338).

  • What are the most popular routes from Irvine to Buenos Aires?

    Most travelers choose Los Angeles - Buenos Aires Ministro Pistarini, Los Angeles - Buenos Aires Jorge Newbery or Los Angeles - El Palomar when deciding on the best route from Irvine to Buenos Aires.

  • Can I find deals for flights from Irvine to Buenos Aires that include hotel bookings?

    Yes. In addition to deals on Irvine to Buenos Aires flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Irvine to Buenos Aires?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Irvine to Buenos Aires.

  • Can I find deals for business class flights from Irvine to Buenos Aires?

    Yes. Cheapflights offers flight deals from Irvine to Buenos Aires by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Irvine to Buenos Aires?

    Currently, April is the cheapest month in which you can book a flight from Irvine to Buenos Aires (average of $795). Flying from Irvine to Buenos Aires in December is currently the most expensive (average of $1,260). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Irvine to Buenos Aires

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Irvine to Buenos Aires

Discover the top 6 airlines that operate flights from Irvine to Buenos Aires. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$573Average$905FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$599Average$1,042FlexibilityNo cancel feeOn-time70%
AviancaCheapest$643Average$864FlexibilityNo cancel feeOn-time71%
LATAM AirlinesCheapest$703Average$1,018FlexibilityNo cancel feeOn-time81%
DeltaCheapest$715Average$998FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$727Average$1,132FlexibilityNo cancel feeOn-time69%

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