Cheap flights from Las Vegas to Buenos Aires from $321
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 8/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Las Vegas to Buenos Aires
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Delta flights from Las Vegas to Buenos Aires
Our best Delta deals on Las Vegas to Buenos Aires flight tickets
United Airlines flights from Las Vegas to Buenos Aires
Our best United Airlines deals on Las Vegas to Buenos Aires flight tickets
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 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 $1,158 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 $858 on momondo.
How have Las Vegas to Buenos Aires flight prices changed over time?
What is the cheapest airline that flies from Las Vegas Harry Reid Intl to Buenos Aires?
Avianca, American Airlines, and United Airlines are the most popular carriers operating from Las Vegas Harry Reid Intl to Buenos Aires
What airlines fly to Buenos Aires?
United Airlines, Delta and American Airlines are the top three most popular airlines that fly to Buenos Aires from Las Vegas according to our data. United Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Buenos Aires. Keep in mind that there are 5 different airlines that fly to Buenos Aires on a routine basis, so you have a few additional options to choose from.
When to book flights from Las Vegas to Buenos Aires
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
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 50m.
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?
The number of operators available for flights from Las Vegas Harry Reid Intl Airport to Buenos Aires is 5 as of June 2025.
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?
momondo data reveals that the most frequently booked airline on the route from Las Vegas to Buenos Aires is United Airlines, representing 27% of all bookings. The subsequent popular airlines are Delta at 27%, LATAM Airlines at 22%, and American Airlines at 15%.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $625 | Free Cancellation | Rating 7.4 8,852 reviews | |||
| PriceFrom $651 | Free Cancellation | Rating 7.5 1,464 reviews | |||
| PriceFrom $731 | Free Cancellation | Rating 7.5 1,801 reviews | |||
| PriceFrom $791 | Free Cancellation | Rating 8.0 7,973 reviews | |||
| PriceFrom $871 | Free Cancellation | Rating 7.2 10,000 reviews |
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.