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Cheap flights from Las Vegas to Buenos Aires from $288

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 12/31. 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
11:30 am - 9:30 pmLAS-AEP
30h 00m2 stops
LATAM Airlines Logo
5:15 pm - 12:38 pmAEP-LAS
23h 23m2 stops
$646LATAM Airlines
Find Deal
Tue, Mar 24 - Thu, Mar 26
LATAM Airlines Logo
6:00 am - 11:40 amLAS-AEP
25h 40m2 stops
LATAM Airlines Logo
11:30 am - 12:38 pmAEP-LAS
29h 08m2 stops
$651LATAM Airlines
Find Deal
Tue, Mar 24 - Thu, Mar 26
United Airlines Logo
10:13 am - 7:20 amLAS-EZE
16h 07m1 stop
United Airlines Logo
10:05 pm - 6:00 pmEZE-LAS
24h 55m1 stop
$668United Airlines
Find Deal
Thu, Dec 4 - Thu, Dec 11
United Airlines Logo
6:00 am - 7:20 amLAS-EZE
20h 20m1 stop
United Airlines Logo
11:55 pm - 7:00 pmEZE-LAS
24h 05m2 stops
$672United Airlines
Find Deal
Tue, Dec 9 - Mon, Dec 15
Delta Logo
6:00 am - 7:20 amLAS-EZE
20h 20m1 stop
Delta Logo
10:25 pm - 2:31 pmEZE-LAS
21h 06m1 stop
$746Delta
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Wed, Feb 18 - Wed, Mar 4
Delta Logo
11:33 pm - 10:15 amLAS-EZE
29h 42m2 stops
Delta Logo
10:25 pm - 7:50 pmEZE-LAS
26h 25m1 stop
$750Delta
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Sun, Dec 7 - Wed, Dec 10
American Airlines Logo
11:46 am - 10:40 amLAS-EZE
17h 54m1 stop
American Airlines Logo
9:40 pm - 12:42 pmEZE-LAS
20h 02m2 stops
$787American Airlines
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Sat, Dec 6 - Fri, Dec 12
Copa Airlines Logo
12:58 am - 1:57 amLAS-EZE
19h 59m1 stop
Copa Airlines Logo
9:16 am - 10:29 pmEZE-LAS
18h 13m1 stop
$788Copa Airlines
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Sun, Feb 1 - Tue, Feb 17
Copa Airlines Logo
1:58 am - 1:57 amLAS-EZE
19h 59m1 stop
Copa Airlines Logo
3:47 am - 10:30 pmEZE-LAS
22h 43m1 stop
$808Copa Airlines
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Tue, Mar 17 - Sat, Mar 28
American Airlines Logo
10:07 am - 8:25 amLAS-EZE
17h 18m2 stops
American Airlines Logo
10:25 pm - 3:20 pmEZE-LAS
21h 55m2 stops
$811American Airlines
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Fri, Jan 30 - Mon, Feb 9

United Airlines flights from Las Vegas to Buenos Aires

Our best United Airlines deals on Las Vegas to Buenos Aires flight tickets
United Airlines
Dec 4
LAS10:13 amLas Vegas Harry Reid Intl
16h 07m
1 stop
EZE7:20 amBuenos Aires Ministro Pistarini
Dec 11
EZE10:05 pmBuenos Aires Ministro Pistarini
24h 55m
1 stop
LAS6:00 pmLas Vegas Harry Reid Intl
$668
Find similar
United Airlines
Dec 9
LAS6:00 amLas Vegas Harry Reid Intl
20h 20m
1 stop
EZE7:20 amBuenos Aires Ministro Pistarini
Dec 15
EZE11:55 pmBuenos Aires Ministro Pistarini
24h 05m
2 stops
LAS7:00 pmLas Vegas Harry Reid Intl
$672
Find similar
United Airlines
Dec 3
LAS12:59 amLas Vegas Harry Reid Intl
27h 21m
1 stop
EZE9:20 amBuenos Aires Ministro Pistarini
Dec 11
EZE11:55 pmBuenos Aires Ministro Pistarini
18h 31m
1 stop
LAS1:26 pmLas Vegas Harry Reid Intl
$677
Find similar

Delta flights from Las Vegas to Buenos Aires

Our best Delta deals on Las Vegas to Buenos Aires flight tickets
Delta
Feb 18
LAS6:00 amLas Vegas Harry Reid Intl
20h 20m
1 stop
EZE7:20 amBuenos Aires Ministro Pistarini
Mar 4
EZE10:25 pmBuenos Aires Ministro Pistarini
21h 06m
1 stop
LAS2:31 pmLas Vegas Harry Reid Intl
$746
Find similar
Delta
Dec 7
LAS11:33 pmLas Vegas Harry Reid Intl
29h 42m
2 stops
EZE10:15 amBuenos Aires Ministro Pistarini
Dec 10
EZE10:25 pmBuenos Aires Ministro Pistarini
26h 25m
1 stop
LAS7:50 pmLas Vegas Harry Reid Intl
$750
Find similar
Delta
Feb 19
LAS9:00 amLas Vegas Harry Reid Intl
19h 00m
1 stop
EZE9:00 amBuenos Aires Ministro Pistarini
Mar 6
EZE8:55 pmBuenos Aires Ministro Pistarini
17h 08m
1 stop
LAS9:03 amLas Vegas Harry Reid Intl
$757
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 6, 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

11:30 am-9:30 pm

2 stops30h 00m

Buenos Aires Jorge Newbery

Thu 3/26

5:15 pm-12:38 pm

2 stops23h 23m

$646

Las VegasBuenos Aires

LAS - AEP

LASAEP

Las Vegas Harry Reid Intl

Tue 3/24

6:00 am-11:40 am

2 stops25h 40m

Buenos Aires Jorge Newbery

Thu 3/26

11:30 am-12:38 pm

2 stops29h 08m

$651

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Thu 12/4

10:13 am-7:20 am

1 stop16h 07m

Buenos Aires Ministro Pistarini

Thu 12/11

10:05 pm-6:00 pm

1 stop24h 55m

$668

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Tue 12/9

6:00 am-7:20 am

1 stop20h 20m

Buenos Aires Ministro Pistarini

Mon 12/15

11:55 pm-7:00 pm

2 stops24h 05m

$672

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Wed 2/18

6:00 am-7:20 am

1 stop20h 20m

Buenos Aires Ministro Pistarini

Wed 3/4

10:25 pm-2:31 pm

1 stop21h 06m

$746

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Sun 12/7

11:33 pm-10:15 am

2 stops29h 42m

Buenos Aires Ministro Pistarini

Wed 12/10

10:25 pm-7:50 pm

1 stop26h 25m

$750

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Sat 12/6

11:46 am-10:40 am

1 stop17h 54m

Buenos Aires Ministro Pistarini

Fri 12/12

9:40 pm-12:42 pm

2 stops20h 02m

$787

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Sun 2/1

12:58 am-1:57 am

1 stop19h 59m

Buenos Aires Ministro Pistarini

Tue 2/17

9:16 am-10:29 pm

1 stop18h 13m

$788

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

Sat 3/28

3:47 am-10:30 pm

1 stop22h 43m

$808

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Fri 1/30

10:07 am-8:25 am

2 stops17h 18m

Buenos Aires Ministro Pistarini

Mon 2/9

10:25 pm-3:20 pm

2 stops21h 55m

$811

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 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 $713, 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 January instead. Flights to Buenos Aires in January, while not as cheap as those in November, still average around $871.

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 $1,174 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 $773 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 23% 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 45m.

  • 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
1,563 reviews
Search Copa Airlines flights
United AirlinesPriceFrom $625Free CancellationRating
7.4
9,007 reviews
Search United Airlines flights
LATAM AirlinesPriceFrom $630Free CancellationRating
7.5
1,873 reviews
Search LATAM Airlines flights
DeltaPriceFrom $745Free CancellationRating
7.9
8,001 reviews
Search Delta flights
American AirlinesPriceFrom $763Free CancellationRating
7.2
11,040 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