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$335+ 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 12/27. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BUE
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from Irvine to Buenos Aires are usually found in September or May, 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 July 31, 2025.

Round-trip from

$755
(LATAM Airlines)

One-way from

$336
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$977
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. 10% potential increase in price ($111 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 31, 2025.

This LATAM Airlines deal was found by Cheapflights users on 7/31. 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.
Thu 10/169:35 amLAX - EZE
2 stops22h 10mLATAM Airlines
Sat 10/256:13 pmEZE - LAX
2 stops28h 27mLATAM Airlines
Deal found 7/31$755
This CrystalTravel deal was found by Cheapflights users on 7/29. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/3010:30 amLAX - AEP
1 stop16h 25mLATAM Airlines
Fri 12/1211:45 amAEP - LAX
1 stop23h 30mLATAM Airlines
Deal found 7/29$758
This Gotogate deal was found by Cheapflights users on 7/29. 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.
Fri 9/1211:30 amLAX - EZE
1 stop14h 40mMultiple Airlines
Fri 9/261:40 amEZE - LAX
2 stops25h 30mMultiple Airlines
Deal found 7/29$759
This Delta deal was found by Cheapflights users on 7/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1511:30 amLAX - EZE
1 stop14h 25mDelta
Sat 11/17:55 amEZE - LAX
1 stop15h 05mDelta
Deal found 7/31$761
This Gotogate deal was found by Cheapflights users on 7/29. 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.
Sun 8/241:00 amLAX - AEP
2 stops24h 40mAvianca
Mon 9/87:00 amAEP - LAX
2 stops20h 10mAvianca
Deal found 7/29$762
This Copa Airlines deal was found by Cheapflights users on 7/29. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/251:46 amLAX - EZE
1 stop19h 14mCopa Airlines
Mon 11/242:32 pmEZE - LAX
1 stop26h 30mCopa Airlines
Deal found 7/29$769
This Gotogate deal was found by Cheapflights users on 7/29. 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.
Fri 9/1211:30 amLAX - AEP
1 stop27h 05mMultiple Airlines
Sat 9/277:00 amAEP - LAX
2 stops20h 10mMultiple Airlines
Deal found 7/29$769
This Priceline deal was found by Cheapflights users on 7/29. 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.
Tue 10/142:50 pmLAX - EZE
3 stops29h 20mAvianca
Tue 10/287:35 amEZE - LAX
2 stops19h 25mAvianca
Deal found 7/29$772
This United Airlines deal was found by Cheapflights users on 7/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/128:50 amLAX - EZE
1 stop19h 10mUnited Airlines
Sat 9/209:00 pmEZE - LAX
1 stop25h 07mUnited Airlines
Deal found 7/29$777

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 July 31, 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

Thu 10/16

9:35 am-11:45 am

2 stops22h 10m

Buenos Aires Ministro Pistarini

Sat 10/25

6:13 pm-6:40 pm

2 stops28h 27m

$755

Los AngelesBuenos Aires

LAX - AEP

LAXAEP

Los Angeles

Sun 11/30

10:30 am-7:55 am

1 stop16h 25m

Buenos Aires Jorge Newbery

Fri 12/12

11:45 am-6:15 am

1 stop23h 30m

$758

Los AngelesBuenos Aires

LAX - EZE

LAXEZE

Los Angeles

Fri 9/12

11:30 am-6:10 am

1 stop14h 40m

Buenos Aires Ministro Pistarini

Fri 9/26

1:40 am-11:10 pm

2 stops25h 30m

$759

Los AngelesBuenos Aires

LAX - EZE

LAXEZE

Los Angeles

Mon 9/15

11:30 am-5:55 am

1 stop14h 25m

Buenos Aires Ministro Pistarini

Sun 10/26

7:55 am-6:40 pm

1 stop14h 45m

$761

Los AngelesBuenos Aires

LAX - AEP

LAXAEP

Los Angeles

Sun 8/24

1:00 am-5:40 am

2 stops24h 40m

Buenos Aires Jorge Newbery

Mon 9/8

7:00 am-11:10 pm

2 stops20h 10m

$762

Los AngelesBuenos Aires

LAX - EZE

LAXEZE

Los Angeles

Sat 10/25

1:46 am-1:00 am

1 stop19h 14m

Buenos Aires Ministro Pistarini

Mon 11/24

2:32 pm-12:02 pm

1 stop26h 30m

$769

Los AngelesBuenos Aires

LAX - AEP

LAXAEP

Los Angeles

Fri 9/12

11:30 am-6:35 pm

1 stop27h 05m

Buenos Aires Jorge Newbery

Sat 9/27

7:00 am-11:10 pm

2 stops20h 10m

$769

Los AngelesBuenos Aires

LAX - EZE

LAXEZE

Los Angeles

Tue 10/14

2:50 pm-12:10 am

3 stops29h 20m

Buenos Aires Ministro Pistarini

Fri 10/31

7:35 am-10:15 pm

2 stops18h 40m

$772

Los AngelesBuenos Aires

LAX - EZE

LAXEZE

Los Angeles

Fri 9/12

8:50 am-8:00 am

1 stop19h 10m

Buenos Aires Ministro Pistarini

Sat 9/20

9:00 pm-6:07 pm

1 stop25h 07m

$777

Los AngelesBuenos Aires

LAX - EZE

LAXEZE

Los Angeles

Sat 12/27

12:55 am-7:20 am

1 stop25h 25m

$335

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 19 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 July 25, 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 July 31, 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 July 31, 2025.
Read through reviews of airlines operating flights from Irvine to Buenos Aires, such as Delta, LATAM Airlines, and Copa Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

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
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

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
1,822 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

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
7.5
Good
1,493 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

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.
Aeromexico
7.5
Good
1,721 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

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
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

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.

  • 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 Avianca ($336), LATAM Airlines ($337), 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 7 airlines flying from Irvine to Buenos Aires

Discover the top 7 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$561Average$885FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$573Average$1,445FlexibilityNo cancel feeOn-time71%
AviancaCheapest$692Average$861FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$715Average$1,127FlexibilityNo cancel feeOn-time69%
LATAM AirlinesCheapest$719Average$1,021FlexibilityNo cancel feeOn-time81%
DeltaCheapest$764Average$1,040FlexibilityNo cancel feeOn-timeN/A
AeromexicoCheapest$1,501Average$1,881FlexibilityNo cancel feeOn-timeN/A

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