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$353+ 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 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — BUE
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
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 January, booked 51 days in advance, depart on a Thursday or Wednesday and return on a Wednesday

Find 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 October 20, 2025.

This United Airlines deal was found by Cheapflights users on 10/17. 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 11/38:00 amLAS - EZE
1 stop18h 20mUnited Airlines
Mon 11/1710:05 pmEZE - LAS
1 stop22h 47mUnited Airlines
Deal found 10/17$647
This United Airlines deal was found by Cheapflights users on 10/17. 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 11/410:08 amLAS - EZE
1 stop16h 12mUnited Airlines
Mon 11/1711:55 pmEZE - LAS
2 stops22h 07mUnited Airlines
Deal found 10/17$651
This Copa Airlines deal was found by Cheapflights users on 10/19. 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.
Tue 10/281:00 amLAS - EZE
1 stop17h 25mCopa Airlines
Wed 11/1210:01 amEZE - LAS
1 stop17h 28mCopa Airlines
Deal found 10/19$656
This United Airlines deal was found by Cheapflights users on 10/19. 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 10/2910:08 amLAS - EZE
1 stop18h 12mUnited Airlines
Thu 11/1311:55 pmEZE - LAS
1 stop20h 57mUnited Airlines
Deal found 10/19$668
This United Airlines deal was found by Cheapflights users on 10/19. 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 10/2912:23 pmLAS - EZE
1 stop15h 57mUnited Airlines
Wed 11/1210:05 pmEZE - LAS
2 stops19h 28mUnited Airlines
Deal found 10/19$672
This United Airlines deal was found by Cheapflights users on 10/17. 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 11/68:00 amLAS - EZE
1 stop18h 20mUnited Airlines
Mon 11/1710:05 pmEZE - LAS
1 stop15h 51mUnited Airlines
Deal found 10/17$686
This United Airlines deal was found by Cheapflights users on 10/19. 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 11/95:20 amLAS - EZE
2 stops23h 00mUnited Airlines
Sun 11/1610:05 pmEZE - LAS
2 stops23h 57mUnited Airlines
Deal found 10/19$690
This United Airlines deal was found by Cheapflights users on 10/18. 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 10/183:41 pmLAS - EZE
1 stop36h 19mUnited Airlines
Sun 11/2311:55 pmEZE - LAS
2 stops25h 50mUnited Airlines
Deal found 10/18$700
This American Airlines deal was found by Cheapflights users on 10/17. 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.
Thu 11/611:46 amLAS - EZE
1 stop17h 54mAmerican Airlines
Mon 11/1711:20 pmEZE - LAS
1 stop17h 14mAmerican Airlines
Deal found 10/17$701
This United Airlines deal was found by Cheapflights users on 10/19. 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 10/268:00 amLAS - EZE
1 stop18h 20mUnited Airlines
Tue 11/1111:55 pmEZE - LAS
1 stop20h 57mUnited Airlines
Deal found 10/19$707
This United Airlines deal was found by Cheapflights users on 10/18. 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 11/27:23 amLAS - EZE
2 stops18h 57mUnited Airlines
Mon 11/1010:05 pmEZE - LAS
2 stops21h 25mUnited Airlines
Deal found 10/18$711
This KAYAK deal was found by Cheapflights users on 10/19. 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 10/299:17 amLAS - AEP
2 stops24h 43mLATAM Airlines
Wed 11/128:25 pmAEP - LAS
2 stops21h 31mLATAM Airlines
Deal found 10/19$746

Cheap 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 October 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$647
(United Airlines)

One-way from

$353
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$871
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 ($62 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($55 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 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 October 20, 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 - EZE

LASEZE

Las Vegas Harry Reid Intl

Wed 11/5

1:48 pm-9:20 am

1 stop14h 32m

Buenos Aires Ministro Pistarini

Mon 11/17

11:55 pm-3:52 pm

1 stop20h 57m

$647

Las VegasBuenos Aires

LAS - AEP

LASAEP

Las Vegas Harry Reid Intl

Tue 3/24

6:00 am-4:00 pm

2 stops30h 00m

Buenos Aires Jorge Newbery

Thu 3/26

12:40 pm-3:04 pm

2 stops30h 24m

$651

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Wed 12/3

12:51 am-4:10 am

1 stop22h 19m

Buenos Aires Ministro Pistarini

Thu 12/11

5:16 am-10:29 pm

1 stop22h 13m

$656

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Tue 12/2

12:51 am-1:58 am

1 stop20h 07m

Buenos Aires Ministro Pistarini

Wed 12/10

5:16 am-10:29 pm

1 stop22h 13m

$656

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Wed 12/3

9:00 am-9:20 am

2 stops19h 20m

Buenos Aires Ministro Pistarini

Wed 12/10

10:05 pm-9:06 am

1 stop16h 01m

$668

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Thu 10/30

6:00 am-6:20 am

1 stop20h 20m

Buenos Aires Ministro Pistarini

Mon 11/10

11:55 pm-5:50 pm

1 stop22h 55m

$668

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Thu 12/4

11:55 am-9:20 am

2 stops16h 25m

Buenos Aires Ministro Pistarini

Thu 12/11

11:55 pm-11:01 am

1 stop16h 06m

$668

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Sun 11/9

5:20 am-9:20 am

2 stops23h 00m

Buenos Aires Ministro Pistarini

Sun 11/16

10:05 pm-5:02 pm

2 stops23h 57m

$690

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Fri 11/7

5:20 am-9:20 am

2 stops23h 00m

Buenos Aires Ministro Pistarini

Mon 11/17

10:05 pm-11:17 am

1 stop18h 12m

$690

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Sun 11/9

5:20 am-9:20 am

2 stops23h 00m

Buenos Aires Ministro Pistarini

Mon 11/17

10:05 pm-12:33 pm

2 stops19h 28m

$690

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/20

Showing 1-10 of 34 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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Las Vegas-Buenos Aires flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 October 17, 2025.

Booking 50 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 $615). 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 October 20, 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.

What is the cheapest day to fly from Las Vegas to Buenos Aires?

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

Travelers seeking maximum savings on their Las Vegas to Buenos Aires flight should consider departing on Thursday evenings when fares are most often at their lowest. Wednesday afternoons 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 October 20, 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
7,978 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,978 reviews
Delta
7.9
Good
7,978 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Copa Airlines
7.6
Good
1,557 reviews
Delta
7.9
Good
7,978 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
LATAM Airlines
7.5
Good
1,868 reviews
Delta
7.9
Good
7,978 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,991 reviews
Delta
7.9
Good
7,978 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,024 reviews
Delta
7.9
Good
7,978 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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 United Airlines, LATAM Airlines, and Copa Airlines fly from Las Vegas to Buenos Aires in about 14h 32m. The time it takes to get you to your destination can typically vary by up to 15h 28m. 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 38% 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 $615). 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 October 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$613Average$940FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$625Average$1,010FlexibilityNo cancel feeOn-time69%
LATAM AirlinesCheapest$630Average$1,042FlexibilityNo cancel feeOn-time81%
DeltaCheapest$745Average$1,533FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$763Average$1,002FlexibilityNo cancel feeOn-time71%

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