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Cheap flights from Las Vegas to Buenos Aires from $320

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 7/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Las Vegas to Buenos Aires

Cheap round-trip flights

Enter your travel dates to find the best prices.
Avianca Logo
2:55 pm - 3:40 pm
LAS
-
EZE
20h 45m
2 stops
Avianca Logo
4:50 pm - 1:05 pm
EZE
-
LAS
24h 15m
2 stops
$838Avianca
Tue, Aug 11 - Fri, Aug 21
Avianca Logo
2:55 pm - 12:25 am
LAS
-
EZE
29h 30m
2 stops
Avianca Logo
4:50 pm - 1:05 pm
EZE
-
LAS
24h 15m
2 stops
$840Avianca
Tue, Aug 11 - Fri, Aug 21
Avianca Logo
2:55 pm - 5:40 am
LAS
-
AEP
34h 45m
2 stops
Avianca Logo
7:00 am - 1:05 pm
AEP
-
LAS
34h 05m
2 stops
$840Avianca
Tue, Aug 11 - Fri, Aug 21
Avianca Logo
2:55 pm - 5:40 am
LAS
-
AEP
34h 45m
2 stops
Avianca Logo
7:00 am - 1:05 pm
AEP
-
LAS
58h 05m
2 stops
$857Avianca
Tue, Aug 11 - Tue, Aug 18
Avianca Logo
2:55 pm - 5:40 am
LAS
-
EZE
34h 45m
2 stops
Avianca Logo
7:10 am - 1:05 pm
EZE
-
LAS
33h 55m
2 stops
$860Avianca
Thu, Aug 13 - Wed, Aug 26
LATAM Airlines Logo
9:50 am - 9:40 am
LAS
-
EZE
18h 50m
2 stops
LATAM Airlines Logo
11:35 pm - 11:25 am
EZE
-
LAS
16h 50m
1 stop
$904LATAM Airlines
Thu, Nov 12 - Thu, Nov 19
LATAM Airlines Logo
9:50 am - 9:40 am
LAS
-
EZE
18h 50m
2 stops
LATAM Airlines Logo
7:20 am - 10:55 pm
EZE
-
LAS
20h 35m
2 stops
$923LATAM Airlines
Thu, Nov 12 - Thu, Nov 19
Copa Airlines Logo
12:45 am - 3:52 am
LAS
-
EZE
22h 07m
1 stop
Copa Airlines Logo
8:56 am - 10:30 pm
EZE
-
LAS
18h 34m
1 stop
$926Copa Airlines
Wed, Nov 11 - Thu, Nov 19
Delta Logo
7:00 am - 6:20 am
LAS
-
EZE
18h 20m
2 stops
Delta Logo
7:20 am - 8:56 pm
EZE
-
LAS
18h 36m
2 stops
$938Delta
Wed, Nov 11 - Mon, Nov 16
Multiple Airlines Logo
9:50 am - 7:40 pm
LAS
-
AEP
29h 50m
2 stops
Multiple Airlines Logo
10:30 pm - 11:36 am
AEP
-
LAS
41h 06m
2 stops
$999Multiple Airlines
Tue, Aug 11 - Thu, Aug 20

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Avianca flights from Las Vegas to Buenos Aires

Our best Avianca deals on Las Vegas to Buenos Aires flight tickets
Avianca
Aug 11
LAS2:55 pmLas Vegas Harry Reid Intl
20h 45m
2 stops
EZE3:40 pmBuenos Aires Ministro Pistarini
Aug 21
EZE4:50 pmBuenos Aires Ministro Pistarini
24h 15m
2 stops
LAS1:05 pmLas Vegas Harry Reid Intl
$838
Avianca
Aug 11
LAS2:55 pmLas Vegas Harry Reid Intl
29h 30m
2 stops
EZE12:25 amBuenos Aires Ministro Pistarini
Aug 21
EZE4:50 pmBuenos Aires Ministro Pistarini
24h 15m
2 stops
LAS1:05 pmLas Vegas Harry Reid Intl
$840
Avianca
Aug 11
LAS2:55 pmLas Vegas Harry Reid Intl
34h 45m
2 stops
AEP5:40 amBuenos Aires Jorge Newbery
Aug 18
AEP7:00 amBuenos Aires Jorge Newbery
58h 05m
2 stops
LAS1:05 pmLas Vegas Harry Reid Intl
$857

Copa Airlines flights from Las Vegas to Buenos Aires

Our best Copa Airlines deals on Las Vegas to Buenos Aires flight tickets
Copa Airlines
Nov 11
LAS12:45 amLas Vegas Harry Reid Intl
22h 07m
1 stop
EZE3:52 amBuenos Aires Ministro Pistarini
Nov 19
EZE8:56 amBuenos Aires Ministro Pistarini
18h 34m
1 stop
LAS10:30 pmLas Vegas Harry Reid Intl
$926
Copa Airlines
Sep 24
LAS12:34 amLas Vegas Harry Reid Intl
24h 02m
1 stop
EZE4:36 amBuenos Aires Ministro Pistarini
Oct 4
EZE5:25 amBuenos Aires Ministro Pistarini
21h 05m
1 stop
LAS10:30 pmLas Vegas Harry Reid Intl
$972
Copa Airlines
Oct 1
LAS12:34 amLas Vegas Harry Reid Intl
24h 02m
1 stop
EZE4:36 amBuenos Aires Ministro Pistarini
Oct 10
EZE8:59 amBuenos Aires Ministro Pistarini
17h 31m
1 stop
LAS10:30 pmLas Vegas Harry Reid Intl
$1,070

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 June 26, 2026.
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

Cheapest round-trip

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Tue 8/11

2:55 pm-3:40 pm

2 stops20h 45m

Buenos Aires Ministro Pistarini

Fri 8/21

4:50 pm-1:05 pm

2 stops24h 15m

$838

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Tue 8/11

2:55 pm-12:25 am

2 stops29h 30m

Buenos Aires Ministro Pistarini

Fri 8/21

4:50 pm-1:05 pm

2 stops24h 15m

$840

Las VegasBuenos Aires

LAS - AEP

LASAEP

Las Vegas Harry Reid Intl

Tue 8/11

2:55 pm-5:40 am

2 stops34h 45m

Buenos Aires Jorge Newbery

Fri 8/21

7:00 am-1:05 pm

2 stops34h 05m

$840

Las VegasBuenos Aires

LAS - AEP

LASAEP

Las Vegas Harry Reid Intl

Tue 8/11

2:55 pm-5:40 am

2 stops34h 45m

Buenos Aires Jorge Newbery

Tue 8/18

7:00 am-1:05 pm

2 stops58h 05m

$857

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Thu 8/13

2:55 pm-5:40 am

2 stops34h 45m

Buenos Aires Ministro Pistarini

Wed 8/26

7:10 am-1:05 pm

2 stops33h 55m

$860
Quickest round-trip

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Thu 11/12

9:50 am-9:40 am

2 stops18h 50m

Buenos Aires Ministro Pistarini

Thu 11/19

11:35 pm-11:25 am

1 stop16h 50m

$904

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Thu 11/12

9:50 am-9:40 am

2 stops18h 50m

Buenos Aires Ministro Pistarini

Thu 11/19

7:20 am-10:55 pm

2 stops20h 35m

$923

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Wed 11/11

12:45 am-3:52 am

1 stop22h 07m

Buenos Aires Ministro Pistarini

Thu 11/19

8:56 am-10:30 pm

1 stop18h 34m

$926

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Wed 11/11

7:00 am-6:20 am

2 stops18h 20m

Buenos Aires Ministro Pistarini

Mon 11/16

7:20 am-8:56 pm

2 stops18h 36m

$938

Las VegasBuenos Aires

LAS - AEP

LASAEP

Las Vegas Harry Reid Intl

Tue 8/11

9:50 am-7:40 pm

2 stops29h 50m

Buenos Aires Jorge Newbery

Thu 8/20

10:30 pm-11:36 am

2 stops41h 06m

$999

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 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 $613, 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 February instead. Flights to Buenos Aires in February, while not as cheap as those in November, still average around $622.

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

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

17h 40m

Direct flights

None
The fastest flight from Las Vegas to Buenos Aires takes 17h 40m
There are no direct flights from Las Vegas to Buenos Aires. There are no popular flight routes from Las Vegas to Buenos Aires.
Search flight deals

Frequently asked questions about flying from Las Vegas to Buenos Aires

  • 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 17h 40m.

  • 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
LATAM AirlinesPriceFrom $630Free CancellationRating
7.4
1,942 reviews
Search LATAM Airlines flights
United AirlinesPriceFrom $685Free CancellationRating
7.4
9,891 reviews
Search United Airlines flights
DeltaPriceFrom $745Free CancellationRating
7.8
8,442 reviews
Search Delta flights
American AirlinesPriceFrom $763Free CancellationRating
7.1
11,763 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