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$329+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BUE
jun. 21 — jun. 281
sáb. 6/21
sáb. 6/28
1 adult, Economy
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Cheapflights Tip: The best prices from Irvine to Buenos Aires are usually found in September or October, 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 junio 16, 2025.

Round-trip from

$646
(LATAM Airlines)

One-way from

$329
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$985
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. 8% potential increase in price ($89 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in June 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 junio 16, 2025.

This LATAM Airlines deal was found by Cheapflights users on 6/14. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/91:55 pmLAX - AEP
1 stop23h 05mLATAM Airlines
dom. 8/108:10 pmAEP - LAX
1 stop15h 45mLATAM Airlines
Deal found 6/14$646
This Cheapflightsfares deal was found by Cheapflights users on 6/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/148:25 pmLAX - EZE
1 stop25h 30mLATAM Airlines
dom. 11/167:15 amEZE - LAX
1 stop28h 05mLATAM Airlines
Deal found 6/14$667
This Priceline deal was found by Cheapflights users on 6/15. 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.
lun. 8/1811:50 pmLAX - EZE
3 stops21h 35mAvianca
jue. 8/284:45 pmEZE - LAX
2 stops23h 45mAvianca
Deal found 6/15$713
This Gotogate deal was found by Cheapflights users on 6/14. 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.
dom. 10/1911:50 pmLAX - AEP
2 stops25h 50mAvianca
mar. 11/47:00 amAEP - LAX
2 stops20h 20mAvianca
Deal found 6/14$734
This Booking.com deal was found by Cheapflights users on 6/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/3011:30 amLAX - EZE
1 stop21h 55mMultiple Airlines
mar. 10/72:30 amEZE - LAX
3 stops24h 40mMultiple Airlines
Deal found 6/14$744
This Copa Airlines deal was found by Cheapflights users on 6/15. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/141:45 amLAX - EZE
1 stop18h 59mCopa Airlines
mié. 10/292:32 pmEZE - LAX
1 stop26h 09mCopa Airlines
Deal found 6/15$745
This Gotogate deal was found by Cheapflights users on 6/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/104:15 pmLAX - AEP
1 stop23h 25mMultiple Airlines
mié. 8/137:00 amAEP - LAX
2 stops34h 30mMultiple Airlines
Deal found 6/16$747
This American Airlines deal was found by Cheapflights users on 6/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/66:00 amLAX - EZE
1 stop24h 15mAmerican Airlines
dom. 9/218:30 pmEZE - LAX
1 stop18h 27mAmerican Airlines
Deal found 6/14$754
This United Airlines deal was found by Cheapflights users on 6/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/127:35 amLAX - EZE
1 stop18h 45mUnited Airlines
dom. 11/2310:05 pmEZE - LAX
1 stop21h 17mUnited Airlines
Deal found 6/16$757
This Delta deal was found by Cheapflights users on 6/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/197:00 amLAX - EZE
2 stops22h 45mDelta
lun. 8/253:55 amEZE - LAX
1 stop19h 00mDelta
Deal found 6/15$760

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 junio 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 - AEP

LAXAEP

Los Angeles

sáb. 8/9

1:55 pm-5:00 pm

1 stop23h 05m

Buenos Aires Jorge Newbery

dom. 8/10

8:10 pm-7:55 am

1 stop15h 45m

$646

Los AngelesBuenos Aires

LAX - EZE

LAXEZE

Los Angeles

lun. 8/18

11:50 pm-12:10 am

2 stops20h 20m

Buenos Aires Ministro Pistarini

jue. 8/28

4:45 pm-12:30 pm

2 stops23h 45m

$712

Los AngelesBuenos Aires

LAX - EZE

LAXEZE

Los Angeles

lun. 8/18

9:25 pm-11:27 pm

2 stops22h 02m

Buenos Aires Ministro Pistarini

jue. 8/28

12:58 pm-7:00 am

1 stop22h 02m

$719

Los AngelesBuenos Aires

LAX - AEP

LAXAEP

Los Angeles

dom. 8/17

12:30 am-5:40 am

2 stops25h 10m

Buenos Aires Jorge Newbery

jue. 8/28

7:00 am-10:30 pm

2 stops19h 30m

$733

Los AngelesBuenos Aires

LAX - EZE

LAXEZE

Los Angeles

sáb. 8/16

1:45 am-12:55 am

1 stop19h 10m

Buenos Aires Ministro Pistarini

mié. 8/27

8:54 am-11:02 pm

1 stop18h 08m

$745

Los AngelesBuenos Aires

LAX - EZE

LAXEZE

Los Angeles

dom. 8/17

1:59 am-10:08 pm

1 stop16h 09m

Buenos Aires Ministro Pistarini

jue. 8/28

4:45 pm-12:30 pm

2 stops23h 45m

$747

Los AngelesBuenos Aires

LAX - AEP

LAXAEP

Los Angeles

dom. 8/10

4:15 pm-7:40 pm

1 stop23h 25m

Buenos Aires Jorge Newbery

mié. 8/13

7:00 am-1:30 pm

2 stops34h 30m

$747

Los AngelesBuenos Aires

LAX - EZE

LAXEZE

Los Angeles

sáb. 9/6

6:00 am-10:15 am

1 stop24h 15m

Buenos Aires Ministro Pistarini

dom. 9/21

8:30 pm-10:57 am

1 stop18h 27m

$754

Los AngelesBuenos Aires

LAX - EZE

LAXEZE

Los Angeles

vie. 8/15

12:10 pm-9:45 am

1 stop17h 35m

Buenos Aires Ministro Pistarini

mar. 8/26

7:40 am-6:55 pm

1 stop15h 15m

$755

Los AngelesBuenos Aires

LAX - EZE

LAXEZE

Los Angeles

lun. 9/8

11:32 am-8:00 am

1 stop16h 28m

Buenos Aires Ministro Pistarini

dom. 9/21

9:00 pm-6:07 pm

1 stop25h 07m

$757

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/15

Showing 1-10 of 23 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 June 13, 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 junio 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.

Rainfall in Buenos Aires by month

Plan your trip to Buenos Aires by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Buenos Aires ranges from 2.0 - 3.9 inches per month. January is typically the wettest month, when rainfall can reach 3.9 in. June is typically the driest time to visit Buenos Aires when rainfall is around 2.0 in.

Temperature in Buenos Aires by month

Plan your trip to Buenos Aires by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Buenos Aires, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 51.8 F).

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 junio 16, 2025.
Read reviews from past customers who have flown Delta, LATAM Airlines and Copa Airlines from Irvine to Buenos Aires. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,963 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

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
7,963 reviews
Delta
8.0
Very good
7,963 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

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
1,785 reviews
Delta
8.0
Very good
7,963 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

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
7.5
Good
1,453 reviews
Delta
8.0
Very good
7,963 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

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
8,801 reviews
Delta
8.0
Very good
7,963 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

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
7,963 reviews

Entertainment

7.9

Comfort

7.9

Food

7.3

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.

  • 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 United Airlines ($329), Copa Airlines ($331), and LATAM Airlines ($333).

  • 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

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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 junio 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$561Average$927FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$573Average$1,517FlexibilityNo cancel feeOn-time71%
AviancaCheapest$655Average$843FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$695Average$1,133FlexibilityNo cancel feeOn-time69%
LATAM AirlinesCheapest$720Average$1,059FlexibilityNo cancel feeOn-time81%
DeltaCheapest$769Average$1,050FlexibilityNo cancel feeOn-timeN/A
AeromexicoCheapest$1,501Average$1,881FlexibilityNo cancel feeOn-timeN/A

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