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Cheap flights from Las Vegas to Buenos Aires from $340

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Las Vegas to Buenos Aires departing on 1/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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LATAM Airlines Logo
1:15 pm - 9:30 pmLAS-AEP
28h 15m2 stops
LATAM Airlines Logo
8:25 pm - 12:38 pmAEP-LAS
20h 13m2 stops
$646LATAM Airlines
Find Deal
Tue, Mar 24 - Thu, Mar 26
LATAM Airlines Logo
7:23 am - 5:00 pmLAS-AEP
29h 37m2 stops
LATAM Airlines Logo
3:40 pm - 7:11 pmAEP-LAS
31h 31m2 stops
$651LATAM Airlines
Find Deal
Tue, Mar 24 - Thu, Mar 26
United Airlines Logo
6:55 pm - 7:20 amLAS-EZE
31h 25m1 stop
United Airlines Logo
11:55 pm - 1:32 pmEZE-LAS
18h 37m1 stop
$677United Airlines
Find Deal
Sun, Feb 1 - Mon, Feb 9
American Airlines Logo
6:00 am - 8:25 amLAS-EZE
21h 25m1 stop
American Airlines Logo
10:25 pm - 3:20 pmEZE-LAS
21h 55m2 stops
$722American Airlines
Find Deal
Sun, Feb 1 - Mon, Feb 9
United Airlines Logo
12:59 am - 9:20 amLAS-EZE
27h 21m1 stop
United Airlines Logo
11:55 pm - 5:03 pmEZE-LAS
22h 08m1 stop
$727United Airlines
Find Deal
Wed, Dec 10 - Sun, Dec 21
LATAM Airlines Logo
9:10 am - 10:30 amLAS-AEP
21h 20m2 stops
LATAM Airlines Logo
11:30 am - 4:55 pmAEP-LAS
33h 25m2 stops
$746LATAM Airlines
Find Deal
Tue, Mar 24 - Thu, Mar 26
Delta Logo
7:05 am - 10:15 amLAS-EZE
23h 10m1 stop
Delta Logo
10:25 pm - 3:04 pmEZE-LAS
20h 39m1 stop
$757Delta
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Sat, Mar 21 - Tue, Mar 24
United Airlines Logo
5:20 am - 7:20 amLAS-EZE
21h 00m2 stops
United Airlines Logo
11:55 pm - 5:03 pmEZE-LAS
22h 08m1 stop
$761United Airlines
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Thu, Dec 11 - Sun, Dec 21
Copa Airlines Logo
1:58 am - 1:57 amLAS-EZE
19h 59m1 stop
Copa Airlines Logo
5:11 am - 10:30 pmEZE-LAS
21h 19m1 stop
$808Copa Airlines
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Tue, Mar 17 - Sun, Mar 29
Delta Logo
9:25 am - 10:15 amLAS-EZE
20h 50m1 stop
Delta Logo
8:00 am - 12:31 amEZE-LAS
20h 31m2 stops
$819Delta
Find Deal
Sat, Mar 21 - Tue, Mar 24

Delta flights from Las Vegas to Buenos Aires

Our best Delta deals on Las Vegas to Buenos Aires flight tickets
Delta
Mar 21
LAS7:05 amLas Vegas Harry Reid Intl
23h 10m
1 stop
EZE10:15 amBuenos Aires Ministro Pistarini
Mar 24
EZE10:25 pmBuenos Aires Ministro Pistarini
20h 39m
1 stop
LAS3:04 pmLas Vegas Harry Reid Intl
$757
Find similar
Delta
Mar 21
LAS9:25 amLas Vegas Harry Reid Intl
20h 50m
1 stop
EZE10:15 amBuenos Aires Ministro Pistarini
Mar 24
EZE8:00 amBuenos Aires Ministro Pistarini
20h 31m
2 stops
LAS12:31 amLas Vegas Harry Reid Intl
$819
Find similar
Delta
Jan 15
LAS6:00 amLas Vegas Harry Reid Intl
22h 00m
1 stop
EZE9:00 amBuenos Aires Ministro Pistarini
Jan 20
EZE10:25 pmBuenos Aires Ministro Pistarini
23h 26m
2 stops
LAS4:51 pmLas Vegas Harry Reid Intl
$929
Find similar

LATAM Airlines flights from Las Vegas to Buenos Aires

Our best LATAM Airlines deals on Las Vegas to Buenos Aires flight tickets
LATAM Airlines
Mar 24
LAS1:15 pmLas Vegas Harry Reid Intl
28h 15m
2 stops
AEP9:30 pmBuenos Aires Jorge Newbery
Mar 26
AEP8:25 pmBuenos Aires Jorge Newbery
20h 13m
2 stops
LAS12:38 pmLas Vegas Harry Reid Intl
$646
Find similar
LATAM Airlines
Mar 24
LAS7:23 amLas Vegas Harry Reid Intl
29h 37m
2 stops
AEP5:00 pmBuenos Aires Jorge Newbery
Mar 26
AEP3:40 pmBuenos Aires Jorge Newbery
31h 31m
2 stops
LAS7:11 pmLas Vegas Harry Reid Intl
$651
Find similar
LATAM Airlines
Mar 24
LAS9:10 amLas Vegas Harry Reid Intl
21h 20m
2 stops
AEP10:30 amBuenos Aires Jorge Newbery
Mar 26
AEP11:30 amBuenos Aires Jorge Newbery
33h 25m
2 stops
LAS4:55 pmLas Vegas Harry Reid Intl
$746
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated November 14, 2025.
Use the filters below to find and compare flights from Las Vegas to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Las VegasBuenos Aires

LAS - AEP

LASAEP

Las Vegas Harry Reid Intl

Tue 3/24

1:15 pm-9:30 pm

2 stops28h 15m

Buenos Aires Jorge Newbery

Thu 3/26

8:25 pm-12:38 pm

2 stops20h 13m

$646

Las VegasBuenos Aires

LAS - AEP

LASAEP

Las Vegas Harry Reid Intl

Tue 3/24

7:23 am-5:00 pm

2 stops29h 37m

Buenos Aires Jorge Newbery

Thu 3/26

3:40 pm-7:11 pm

2 stops31h 31m

$651

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Sun 2/1

6:55 pm-7:20 am

1 stop31h 25m

Buenos Aires Ministro Pistarini

Mon 2/9

11:55 pm-1:32 pm

1 stop18h 37m

$677

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Sun 2/1

6:00 am-8:25 am

1 stop21h 25m

Buenos Aires Ministro Pistarini

Mon 2/9

10:25 pm-3:20 pm

2 stops21h 55m

$722

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Wed 12/10

12:59 am-9:20 am

1 stop27h 21m

Buenos Aires Ministro Pistarini

Sun 12/21

11:55 pm-5:03 pm

1 stop22h 08m

$727

Las VegasBuenos Aires

LAS - AEP

LASAEP

Las Vegas Harry Reid Intl

Tue 3/24

9:10 am-10:30 am

2 stops21h 20m

Buenos Aires Jorge Newbery

Thu 3/26

11:30 am-4:55 pm

2 stops33h 25m

$746

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Sat 3/21

7:05 am-10:15 am

1 stop23h 10m

Buenos Aires Ministro Pistarini

Tue 3/24

10:25 pm-3:04 pm

1 stop20h 39m

$757

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Thu 12/11

5:20 am-7:20 am

2 stops21h 00m

Buenos Aires Ministro Pistarini

Sun 12/21

11:55 pm-5:03 pm

1 stop22h 08m

$761

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Tue 3/17

1:58 am-1:57 am

1 stop19h 59m

Buenos Aires Ministro Pistarini

Sun 3/29

5:11 am-10:30 pm

1 stop21h 19m

$808

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Sat 3/21

9:25 am-10:15 am

1 stop20h 50m

Buenos Aires Ministro Pistarini

Tue 3/24

8:00 am-12:31 am

2 stops20h 31m

$819

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Buenos Aires from

How to get the cheapest flight ticket from Las Vegas to Buenos Aires

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Las Vegas and Buenos Aires?

What is the cheapest month to fly to Buenos Aires?

The cheapest month to fly to Buenos Aires from Las Vegas is in November. Flight prices, which tend to average around $681, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Buenos Aires from Las Vegas during June instead. Flights to Buenos Aires in June, while not as cheap as those in November, still average around $812.

What is the cheapest day to depart on your flight to Buenos Aires?

On average, the least expensive day to fly to Buenos Aires from Las Vegas is on a Thursday. momondo users have found tickets for Thursday departures for as low as $950. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Buenos Aires on Sunday is $1,137.

What is the cheapest time of day to depart on your flight to Buenos Aires?

Our most recent data shows that the best time of day to fly to Buenos Aires is in the afternoon. Flights from Las Vegas to Buenos Aires during this time can be as low as $984. Try not to purchase tickets at noon because they tend to be around $1,072. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to Buenos Aires?

You are more likely to see cheaper flights to Buenos Aires from Las Vegas when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around $1,175 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from Las Vegas for as low as $748 on momondo.

How have Las Vegas to Buenos Aires flight prices changed over time?

As of November 2025, prices for Las Vegas to Buenos Aires flights are approximately 18% more expensive when compared to flights at the same time last year.

When to book flights from Las Vegas to Buenos Aires

Are you open to changing your travel dates? Check out the ideal times to fly from Las Vegas to Buenos Aires according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Las Vegas to Buenos Aires (LAS to BUE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Las Vegas to Buenos Aires

Direct flights

None
There are no direct flights from Las Vegas to Buenos Aires. There are no popular flight routes from Las Vegas to Buenos Aires.
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  • How far is Las Vegas Harry Reid Intl to Buenos Aires by plane?

    A flight from Las Vegas Harry Reid Intl to Buenos Aires will travel around 6099.8 mi. By plane, this route typically takes 15h 18m.

  • When did momondo last update prices for flights from Las Vegas Harry Reid Intl Airport to Buenos Aires?

    Prices for flights from Las Vegas Harry Reid Intl Airport to Buenos Aires are refreshed on a daily basis.

  • How many operators does momondo search for flights from Las Vegas Harry Reid Intl Airport to Buenos Aires?

  • How old do you have to be to fly from Las Vegas Harry Reid Intl Airport to Buenos Aires?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Las Vegas Harry Reid Intl Airport to Buenos Aires.

  • What documentation or ID do you need to fly to Buenos Aires?

    The required travel and health documents for your Buenos Aires trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Buenos Aires. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Las Vegas to Buenos Aires?

Best airlines flying from Las Vegas to Buenos Aires

Compare and see reviews for airlines that fly from Las Vegas to Buenos Aires with momondo
Airline
Rating
Free Cancellation
Price
Copa AirlinesPriceFrom $613Free CancellationRating
7.6
1,565 reviews
Search Copa Airlines flights
United AirlinesPriceFrom $625Free CancellationRating
7.4
9,017 reviews
Search United Airlines flights
LATAM AirlinesPriceFrom $630Free CancellationRating
7.5
1,876 reviews
Search LATAM Airlines flights
DeltaPriceFrom $745Free CancellationRating
7.9
8,007 reviews
Search Delta flights
American AirlinesPriceFrom $763Free CancellationRating
7.2
11,051 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Las Vegas to Buenos Aires?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Buenos Aires from Las Vegas.

Can I find flights from Las Vegas to Buenos Aires with flexible booking policies on momondo?

Flights from Las Vegas to Buenos Aires with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Las Vegas to Buenos Aires?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Buenos Aires from Las Vegas.

I’m not ready to book a flight from Las Vegas to Buenos Aires right now. Can momondo alert me if prices change?

Price alerts on flights to Buenos Aires from Las Vegas are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Find better results for your trip to Argentina

Fly into one of these airports located in Buenos Aires

Airports listed have a maximum distance of 17.0 mi from Buenos Aires
Buenos Aires Jorge Newbery Airport
Buenos Aires Ministro Pistarini Airport