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Cheap flights from Las Vegas to Buenos Aires from $373

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 3/22. 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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Find the cheapest flights from Las Vegas to Buenos Aires

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
11:34 am - 9:00 amLAS-EZE
16h 26m1 stop
Delta Logo
8:55 pm - 12:31 pmEZE-LAS
20h 36m1 stop
$746Delta
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Sat, Dec 6 - Tue, Dec 9
LATAM Airlines Logo
6:00 am - 9:40 amLAS-AEP
22h 40m2 stops
LATAM Airlines Logo
2:55 pm - 1:05 pmAEP-LAS
27h 10m2 stops
$746LATAM Airlines
Find Deal
Sat, Dec 6 - Tue, Dec 9
United Airlines Logo
9:00 am - 9:20 amLAS-EZE
19h 20m2 stops
United Airlines Logo
11:55 pm - 11:56 amEZE-LAS
17h 01m1 stop
$750United Airlines
Find Deal
Sat, Dec 6 - Tue, Dec 9
Delta Logo
1:56 pm - 2:55 pmLAS-EZE
19h 59m2 stops
Delta Logo
8:55 pm - 1:44 pmEZE-LAS
21h 49m1 stop
$837Delta
Find Deal
Sat, Dec 6 - Tue, Dec 9
LATAM Airlines Logo
9:45 am - 9:15 amLAS-EZE
18h 30m2 stops
LATAM Airlines Logo
7:43 pm - 1:05 pmEZE-LAS
22h 22m2 stops
$841LATAM Airlines
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Fri, Jan 16 - Tue, Jan 27
LATAM Airlines Logo
9:50 am - 9:15 amLAS-EZE
18h 25m2 stops
LATAM Airlines Logo
7:43 pm - 12:54 pmEZE-LAS
21h 11m2 stops
$850LATAM Airlines
Find Deal
Wed, Mar 4 - Mon, Mar 23
LATAM Airlines Logo
9:00 am - 9:00 amLAS-EZE
19h 00m1 stop
LATAM Airlines Logo
7:43 pm - 12:50 pmEZE-LAS
22h 07m2 stops
$874LATAM Airlines
Find Deal
Sat, Feb 14 - Mon, Feb 23
LATAM Airlines Logo
9:50 am - 9:15 amLAS-EZE
18h 25m2 stops
LATAM Airlines Logo
8:55 pm - 10:25 amEZE-LAS
17h 30m1 stop
$876LATAM Airlines
Find Deal
Wed, Mar 4 - Mon, Mar 23
Copa Airlines Logo
2:02 am - 4:03 amLAS-EZE
22h 01m1 stop
Copa Airlines Logo
2:27 am - 10:30 pmEZE-LAS
24h 03m1 stop
$880Copa Airlines
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Tue, Apr 7 - Tue, Apr 21
United Airlines Logo
12:20 pm - 7:20 amLAS-EZE
14h 00m1 stop
United Airlines Logo
10:55 pm - 3:36 pmEZE-LAS
20h 41m1 stop
$892United Airlines
Find Deal
Wed, Mar 4 - Mon, Mar 23

Delta flights from Las Vegas to Buenos Aires

Our best Delta deals on Las Vegas to Buenos Aires flight tickets
Delta
Nov 27
LAS11:32 amLas Vegas Harry Reid Intl
16h 28m
1 stop
EZE9:00 amBuenos Aires Ministro Pistarini
Dec 1
EZE11:55 pmBuenos Aires Ministro Pistarini
16h 35m
1 stop
LAS11:30 amLas Vegas Harry Reid Intl
$746
Find similar
Delta
Dec 6
LAS1:56 pmLas Vegas Harry Reid Intl
19h 59m
2 stops
EZE2:55 pmBuenos Aires Ministro Pistarini
Dec 9
EZE8:55 pmBuenos Aires Ministro Pistarini
21h 49m
1 stop
LAS1:44 pmLas Vegas Harry Reid Intl
$837
Find similar
Delta
Mar 15
LAS7:00 amLas Vegas Harry Reid Intl
23h 15m
1 stop
EZE10:15 amBuenos Aires Ministro Pistarini
Apr 2
EZE6:00 pmBuenos Aires Ministro Pistarini
23h 44m
2 stops
LAS1:44 pmLas Vegas Harry Reid Intl
$998
Find similar

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 6
LAS9:00 amLas Vegas Harry Reid Intl
19h 20m
2 stops
EZE9:20 amBuenos Aires Ministro Pistarini
Dec 9
EZE11:55 pmBuenos Aires Ministro Pistarini
17h 01m
1 stop
LAS11:56 amLas Vegas Harry Reid Intl
$750
Find similar
United Airlines
Mar 4
LAS12:20 pmLas Vegas Harry Reid Intl
14h 00m
1 stop
EZE7:20 amBuenos Aires Ministro Pistarini
Mar 23
EZE10:55 pmBuenos Aires Ministro Pistarini
20h 41m
1 stop
LAS3:36 pmLas Vegas Harry Reid Intl
$892
Find similar
United Airlines
Jan 16
LAS8:00 amLas Vegas Harry Reid Intl
18h 20m
1 stop
EZE7:20 amBuenos Aires Ministro Pistarini
Jan 27
EZE10:05 pmBuenos Aires Ministro Pistarini
17h 40m
2 stops
LAS10:45 amLas Vegas Harry Reid Intl
$896
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 26, 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 - EZE

LASEZE

Las Vegas Harry Reid Intl

Sat 12/6

11:34 am-9:00 am

1 stop16h 26m

Buenos Aires Ministro Pistarini

Tue 12/9

8:55 pm-12:31 pm

1 stop20h 36m

$746

Las VegasBuenos Aires

LAS - AEP

LASAEP

Las Vegas Harry Reid Intl

Sat 12/6

6:00 am-9:40 am

2 stops22h 40m

Buenos Aires Jorge Newbery

Tue 12/9

2:55 pm-1:05 pm

2 stops27h 10m

$746

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Sat 12/6

9:00 am-9:20 am

2 stops19h 20m

Buenos Aires Ministro Pistarini

Tue 12/9

11:55 pm-11:56 am

1 stop17h 01m

$750

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Sat 12/6

1:56 pm-2:55 pm

2 stops19h 59m

Buenos Aires Ministro Pistarini

Tue 12/9

8:55 pm-1:44 pm

1 stop21h 49m

$837

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Fri 1/16

9:45 am-9:15 am

2 stops18h 30m

Buenos Aires Ministro Pistarini

Tue 1/27

7:43 pm-1:05 pm

2 stops22h 22m

$841

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Wed 3/4

9:50 am-9:15 am

2 stops18h 25m

Buenos Aires Ministro Pistarini

Mon 3/23

7:43 pm-12:54 pm

2 stops21h 11m

$850

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Sat 2/14

9:00 am-9:00 am

1 stop19h 00m

Buenos Aires Ministro Pistarini

Mon 2/23

7:43 pm-12:50 pm

2 stops22h 07m

$874

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Wed 3/4

9:50 am-9:15 am

2 stops18h 25m

Buenos Aires Ministro Pistarini

Mon 3/23

8:55 pm-10:25 am

1 stop17h 30m

$876

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Tue 4/7

2:02 am-4:03 am

1 stop22h 01m

Buenos Aires Ministro Pistarini

Tue 4/21

2:27 am-10:30 pm

1 stop24h 03m

$880

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Wed 3/4

12:20 pm-7:20 am

1 stop14h 00m

Buenos Aires Ministro Pistarini

Mon 3/23

10:55 pm-3:36 pm

1 stop20h 41m

$892

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest 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 $685, 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 $1,174 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 $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 21% 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

Fastest flight time

14h 00m

Direct flights

None
The fastest flight from Las Vegas to Buenos Aires takes 14h 00m
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 13h 56m.

  • 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
1,569 reviews
Search Copa Airlines flights
United AirlinesPriceFrom $625Free CancellationRating
7.4
9,046 reviews
Search United Airlines flights
LATAM AirlinesPriceFrom $630Free CancellationRating
7.5
1,886 reviews
Search LATAM Airlines flights
DeltaPriceFrom $745Free CancellationRating
7.9
7,998 reviews
Search Delta flights
American AirlinesPriceFrom $763Free CancellationRating
7.2
11,038 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