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$322+ Cheap flights from Las Vegas (LAS) 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 12/30. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — BUE
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheapflights Tip: The best prices from Las Vegas Harry Reid Intl to Buenos Aires are usually found in November or June, booked 84 days in advance, depart on a Thursday or Wednesday and return on a Wednesday

Cheap flight deals from Las Vegas to Buenos Aires

Cheapest flights from Las Vegas to Buenos Aires
Explore the most affordable flight options available from Las Vegas to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/16. 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.
Sun 12/218:00 amLAS - EZE
1 stop20h 20mUnited Airlines
Sun 12/2811:55 pmEZE - LAS
1 stop23h 09mUnited Airlines
Deal found 12/16$973
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Mon 12/226:20 pmLAS - EZE
2 stops34h 00mUnited Airlines
Sun 12/2811:55 pmEZE - LAS
1 stop23h 09mUnited Airlines
Deal found 12/16$977
This Copa Airlines deal was found by Cheapflights users on 12/15. 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.
Thu 12/1812:51 amLAS - EZE
1 stop20h 07mCopa Airlines
Sun 12/219:03 amEZE - LAS
1 stop18h 26mCopa Airlines
Deal found 12/15$981
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Thu 12/1812:59 amLAS - EZE
1 stop25h 21mUnited Airlines
Tue 12/3011:55 pmEZE - LAS
1 stop24h 59mUnited Airlines
Deal found 12/16$984
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Sat 12/2011:20 amLAS - EZE
2 stops41h 00mUnited Airlines
Sun 12/2811:55 pmEZE - LAS
1 stop23h 09mUnited Airlines
Deal found 12/16$994
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Wed 12/246:00 amLAS - EZE
2 stops22h 20mUnited Airlines
Tue 12/3011:55 pmEZE - LAS
1 stop24h 59mUnited Airlines
Deal found 12/16$1,047
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Tue 12/2311:05 amLAS - EZE
2 stops17h 15mUnited Airlines
Sun 12/2811:55 pmEZE - LAS
2 stops27h 03mUnited Airlines
Deal found 12/16$1,051
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Sat 12/206:54 pmLAS - EZE
1 stop33h 26mUnited Airlines
Tue 12/3011:55 pmEZE - LAS
1 stop24h 59mUnited Airlines
Deal found 12/16$1,058
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
Wed 12/243:47 pmLAS - EZE
2 stops25h 44mMultiple Airlines
Wed 12/319:03 amEZE - LAS
1 stop18h 26mMultiple Airlines
Deal found 12/16$1,070
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
Tue 12/2310:01 pmLAS - EZE
1 stop30h 34mMultiple Airlines
Mon 12/299:03 amEZE - LAS
1 stop18h 26mMultiple Airlines
Deal found 12/16$1,087
This KAYAK deal was found by Cheapflights users on 12/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:30 pmLAS - AEP
2 stops20h 10mLATAM Airlines
Wed 12/313:40 pmAEP - LAS
2 stops26h 45mLATAM Airlines
Deal found 12/16$1,274
This KAYAK deal was found by Cheapflights users on 12/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/215:30 pmLAS - AEP
2 stops20h 10mLATAM Airlines
Wed 12/313:40 pmAEP - LAS
2 stops26h 45mLATAM Airlines
Deal found 12/16$1,380

Find flight deals from Las Vegas to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from Las Vegas (LAS) to Buenos Aires (BUE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$646
(LATAM Airlines)

One-way from

$322
(Avianca)

Popular in

December

Cheapest in

November

Average price

$1,558
Provider with most accurate pricing for Las Vegas Harry Reid Intl-Buenos Aires (BUE) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Las Vegas Harry Reid Intl-Buenos Aires (BUE) flights.
Search Deals
From Las Vegas Harry Reid Intl to Buenos Aires (BUE)
Search Deals
One-way flight from Las Vegas Harry Reid Intl to Buenos Aires (BUE)
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($52 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Las Vegas 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 December 18, 2025.
Use the filters below to find and compare flights from Las Vegas to Buenos Aires that are best for you.

Fly from

Las Vegas

Fly to

Buenos Aires

Route

Depart

Return

Price

Las VegasBuenos Aires

LAS - AEP

LASAEP

Las Vegas Harry Reid Intl

Mon 3/16

6:00 am-2:00 pm

2 stops28h 00m

Buenos Aires Jorge Newbery

Wed 3/18

11:30 am-12:54 pm

2 stops29h 24m

$646

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Mon 1/19

9:40 am-9:15 am

2 stops18h 35m

Buenos Aires Ministro Pistarini

Wed 1/28

8:55 pm-9:03 am

1 stop17h 08m

$800

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Tue 4/7

12:45 am-4:30 am

1 stop23h 45m

Buenos Aires Ministro Pistarini

Wed 4/22

9:11 am-10:30 pm

1 stop17h 19m

$804

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Sun 3/1

12:58 am-4:18 am

1 stop22h 20m

Buenos Aires Ministro Pistarini

Tue 3/10

2:31 am-10:29 pm

1 stop23h 58m

$804

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Tue 1/20

10:55 am-8:25 am

1 stop16h 30m

Buenos Aires Ministro Pistarini

Wed 1/28

11:20 pm-10:57 am

1 stop16h 37m

$808

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Tue 1/20

7:00 am-10:15 am

1 stop22h 15m

Buenos Aires Ministro Pistarini

Wed 1/28

8:55 pm-8:24 am

1 stop16h 29m

$816

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Wed 1/28

9:00 am-8:25 am

1 stop18h 25m

Buenos Aires Ministro Pistarini

Mon 2/9

10:25 pm-5:03 pm

1 stop23h 38m

$816

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Mon 3/9

7:00 am-10:15 am

1 stop23h 15m

Buenos Aires Ministro Pistarini

Mon 3/16

10:25 pm-10:03 pm

1 stop27h 38m

$816

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Wed 4/8

2:59 pm-9:45 am

1 stop14h 46m

Buenos Aires Ministro Pistarini

Wed 4/22

7:45 am-11:28 pm

2 stops19h 43m

$816

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Wed 1/14

9:00 am-9:10 am

2 stops19h 10m

Buenos Aires Ministro Pistarini

Wed 2/4

10:25 pm-12:48 pm

2 stops19h 23m

$820

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 30 results
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Compare providers for flights from Las Vegas to Buenos Aires

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Las Vegas to Buenos Aires in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Las Vegas-Buenos Aires flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Las Vegas-Buenos Aires flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Las Vegas-Buenos Aires flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Las Vegas-Buenos Aires flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Las Vegas-Buenos Aires flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Las Vegas to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Las Vegas 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 Las Vegas to Buenos Aires

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

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

Booking 84 days in advance of your planned departure date is, on average, the best time to get cheap flights from Las Vegas to Buenos Aires. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, February is the cheapest month in which you can book a flight from Las Vegas to Buenos Aires (average of $524). Flying from Las Vegas to Buenos Aires in July is currently the most expensive (average of $976). 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 LAS to BUE?

Find hourly flight availability from Las Vegas 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 December 18, 2025.

It’s typically best to fly out from Las Vegas to Buenos Aires in the evening. Doing so could potentially save you 34% on the flight price compared to flying in the morning, which is usually more expensive.

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 December 18, 2025.
Peruse reviews from past customers who have flown with Delta, Copa Airlines, and LATAM Airlines from Las Vegas to Buenos Aires to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,008 reviews

Crew

8.5

Food

7.3

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,008 reviews
Delta
7.9
Good
8,008 reviews

Crew

8.5

Food

7.3

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Copa Airlines
7.6
Good
1,556 reviews
Delta
7.9
Good
8,008 reviews

Crew

8.5

Food

7.3

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
LATAM Airlines
7.5
Good
1,893 reviews
Delta
7.9
Good
8,008 reviews

Crew

8.5

Food

7.3

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,093 reviews
Delta
7.9
Good
8,008 reviews

Crew

8.5

Food

7.3

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,055 reviews
Delta
7.9
Good
8,008 reviews

Crew

8.5

Food

7.3

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Las Vegas 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 airport do you fly from for flights from Las Vegas to Buenos Aires?

    If you book a flight to Buenos Aires from Las Vegas, you will be flying from Harry Reid Intl, which is the city’s only airport. Las Vegas Harry Reid Intl (LAS) is located 6.2 mi from the center of Las Vegas. There are 0 flights from Harry Reid Intl to Buenos Aires per day from 5 different airlines.

  • How long is the flight from Las Vegas to Buenos Aires?

    Airlines like LATAM Airlines, Copa Airlines, and American Airlines fly from Las Vegas to Buenos Aires in about 16h 30m. The time it takes to get you to your destination can typically vary by up to 11h 30m. The distance between Las Vegas and Buenos Aires is about 6100 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Las Vegas to Buenos Aires round-trip?

    Currently priced at $613, Copa Airlines will fly you from Las Vegas to Buenos Aires and back. In addition to Copa Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and LATAM Airlines - these airlines can fly you to your destination from $625 and $630, respectively. Copa Airlines is priced at 37% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Las Vegas 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 Las Vegas to Buenos Aires?

    Currently, February is the cheapest month in which you can book a flight from Las Vegas to Buenos Aires (average of $524). Flying from Las Vegas to Buenos Aires in July is currently the most expensive (average of $976). 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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Top 5 airlines flying from Las Vegas to Buenos Aires

Discover the top 5 airlines that operate flights from Las Vegas 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$613Average$980FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$625Average$987FlexibilityNo cancel feeOn-time69%
LATAM AirlinesCheapest$630Average$1,042FlexibilityNo cancel feeOn-time81%
DeltaCheapest$745Average$1,746FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$750Average$1,002FlexibilityNo cancel feeOn-time71%

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