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Cheap flights from Las Vegas to Buenos Aires from $342

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 6/24. 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.
Avianca Logo
2:55 pm - 12:25 am
LAS
-
EZE
29h 30m
2 stops
Avianca Logo
1:35 am - 1:05 pm
EZE
-
LAS
39h 30m
2 stops
$851Avianca
Thu, Jun 11 - Tue, Jul 7
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
$851Avianca
Thu, Jun 11 - Wed, Jul 8
Avianca Logo
2:55 pm - 12:25 am
LAS
-
EZE
29h 30m
2 stops
Avianca Logo
7:10 am - 1:05 pm
EZE
-
LAS
33h 55m
2 stops
$864Avianca
Thu, Jul 2 - Wed, Jul 8
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
$864Avianca
Thu, Jul 2 - Wed, Jul 8
Avianca Logo
2:55 pm - 12:25 am
LAS
-
EZE
29h 30m
2 stops
Avianca Logo
4:50 pm - 1:05 pm
EZE
-
LAS
48h 15m
2 stops
$868Avianca
Thu, Jun 11 - Thu, Jul 9
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
$868Avianca
Thu, Jun 25 - Thu, Jul 2
Avianca Logo
2:55 pm - 3:40 pm
LAS
-
EZE
20h 45m
2 stops
Avianca Logo
7:10 am - 1:05 pm
EZE
-
LAS
33h 55m
2 stops
$877Avianca
Thu, Aug 20 - Mon, Aug 24
Avianca Logo
2:55 pm - 3:40 pm
LAS
-
EZE
44h 45m
2 stops
Avianca Logo
4:50 pm - 1:05 pm
EZE
-
LAS
48h 15m
2 stops
$878Avianca
Thu, Jun 25 - Thu, Jul 2
Multiple Airlines Logo
2:55 pm - 3:40 pm
LAS
-
EZE
20h 45m
2 stops
Multiple Airlines Logo
1:35 am - 6:17 pm
EZE
-
LAS
20h 42m
2 stops
$944Multiple Airlines
Tue, Aug 18 - Sun, Aug 30
LATAM Airlines Logo
7:00 am - 7:40 am
LAS
-
AEP
20h 40m
2 stops
LATAM Airlines Logo
3:40 pm - 12:36 pm
AEP
-
LAS
25h 56m
2 stops
$1,133LATAM Airlines
Wed, Oct 28 - Sat, Nov 7

United Airlines flights from Las Vegas to Buenos Aires

Our best United Airlines deals on Las Vegas to Buenos Aires flight tickets
United Airlines
Nov 12
LAS6:00 amLas Vegas Harry Reid Intl
22h 20m
1 stop
EZE9:20 amBuenos Aires Ministro Pistarini
Nov 19
EZE10:05 pmBuenos Aires Ministro Pistarini
15h 55m
1 stop
LAS9:00 amLas Vegas Harry Reid Intl
$1,124
United Airlines
Sep 17
LAS10:05 amLas Vegas Harry Reid Intl
17h 55m
1 stop
EZE8:00 amBuenos Aires Ministro Pistarini
Sep 21
EZE9:00 pmBuenos Aires Ministro Pistarini
20h 11m
1 stop
LAS1:11 pmLas Vegas Harry Reid Intl
$1,128
United Airlines
Jul 22
LAS10:25 amLas Vegas Harry Reid Intl
17h 35m
1 stop
EZE8:00 amBuenos Aires Ministro Pistarini
Aug 5
EZE9:00 pmBuenos Aires Ministro Pistarini
22h 37m
1 stop
LAS3:37 pmLas Vegas Harry Reid Intl
$1,134

Avianca flights from Las Vegas to Buenos Aires

Our best Avianca deals on Las Vegas to Buenos Aires flight tickets
Avianca
Jun 11
LAS2:55 pmLas Vegas Harry Reid Intl
29h 30m
2 stops
EZE12:25 amBuenos Aires Ministro Pistarini
Jul 7
EZE1:35 amBuenos Aires Ministro Pistarini
39h 30m
2 stops
LAS1:05 pmLas Vegas Harry Reid Intl
$851
Avianca
Jul 2
LAS2:55 pmLas Vegas Harry Reid Intl
29h 30m
2 stops
EZE12:25 amBuenos Aires Ministro Pistarini
Jul 8
EZE7:10 amBuenos Aires Ministro Pistarini
33h 55m
2 stops
LAS1:05 pmLas Vegas Harry Reid Intl
$864
Avianca
Jun 11
LAS2:55 pmLas Vegas Harry Reid Intl
29h 30m
2 stops
EZE12:25 amBuenos Aires Ministro Pistarini
Jul 9
EZE4:50 pmBuenos Aires Ministro Pistarini
48h 15m
2 stops
LAS1:05 pmLas Vegas Harry Reid Intl
$868

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 May 28, 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

Thu 6/11

2:55 pm-12:25 am

2 stops29h 30m

Buenos Aires Ministro Pistarini

Tue 7/7

1:35 am-1:05 pm

2 stops39h 30m

$851

Las VegasBuenos Aires

LAS - AEP

LASAEP

Las Vegas Harry Reid Intl

Thu 6/11

2:55 pm-5:40 am

2 stops34h 45m

Buenos Aires Jorge Newbery

Wed 7/8

7:00 am-1:05 pm

2 stops34h 05m

$851

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Thu 7/2

2:55 pm-12:25 am

2 stops29h 30m

Buenos Aires Ministro Pistarini

Wed 7/8

7:10 am-1:05 pm

2 stops33h 55m

$864

Las VegasBuenos Aires

LAS - AEP

LASAEP

Las Vegas Harry Reid Intl

Thu 7/2

2:55 pm-5:40 am

2 stops34h 45m

Buenos Aires Jorge Newbery

Wed 7/8

7:00 am-1:05 pm

2 stops34h 05m

$864

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Thu 6/11

2:55 pm-12:25 am

2 stops29h 30m

Buenos Aires Ministro Pistarini

Thu 7/9

4:50 pm-1:05 pm

2 stops48h 15m

$868

Las VegasBuenos Aires

LAS - AEP

LASAEP

Las Vegas Harry Reid Intl

Thu 6/25

2:55 pm-5:40 am

2 stops34h 45m

Buenos Aires Jorge Newbery

Thu 7/2

7:00 am-1:05 pm

2 stops58h 05m

$868

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Thu 8/20

2:55 pm-3:40 pm

2 stops20h 45m

Buenos Aires Ministro Pistarini

Mon 8/24

7:10 am-1:05 pm

2 stops33h 55m

$877

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Thu 6/25

2:55 pm-3:40 pm

2 stops44h 45m

Buenos Aires Ministro Pistarini

Thu 7/2

4:50 pm-1:05 pm

2 stops48h 15m

$878
Quickest round-trip

Las VegasBuenos Aires

LAS - EZE

LASEZE

Las Vegas Harry Reid Intl

Tue 8/18

2:55 pm-3:40 pm

2 stops20h 45m

Buenos Aires Ministro Pistarini

Sun 8/30

1:35 am-6:17 pm

2 stops20h 42m

$944

Las VegasBuenos Aires

LAS - AEP

LASAEP

Las Vegas Harry Reid Intl

Wed 10/28

7:00 am-7:40 am

2 stops20h 40m

Buenos Aires Jorge Newbery

Sat 11/7

3:40 pm-12:36 pm

2 stops25h 56m

$1,133

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 October. Flight prices, which tend to average around $264, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of October, then book flights to Buenos Aires from Las Vegas during November instead. Flights to Buenos Aires in November, while not as cheap as those in October, still average around $613.

How far in advance should I book a flight from Las Vegas 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 $1,131 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 $850 on momondo.

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 10m

Direct flights

None
The fastest flight from Las Vegas to Buenos Aires takes 17h 10m
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 10m.

  • 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
1,573 reviews
Search Copa Airlines flights
United AirlinesPriceFrom $625Free CancellationRating
7.4
9,757 reviews
Search United Airlines flights
LATAM AirlinesPriceFrom $630Free CancellationRating
7.4
1,920 reviews
Search LATAM Airlines flights
DeltaPriceFrom $745Free CancellationRating
7.9
8,422 reviews
Search Delta flights
American AirlinesPriceFrom $750Free CancellationRating
7.1
11,640 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.

An easier way to manage your Buenos Aires trip

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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