HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Porto Alegre

$613+ Cheap flights from Las Vegas (LAS) to Porto Alegre (POA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — POA
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Las Vegas to Porto Alegre with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Las Vegas to Porto Alegre

Discover tips and strategies to find the most affordable flight options for your journey from Las Vegas (LAS) to Porto Alegre (POA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 17, 2025.

Round-trip from

$613
(United Airlines)

Popular in

December

Cheapest in

August

Average price

$610
From Las Vegas Harry Reid Intl to Porto Alegre Salgado Filho
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($125 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($51 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Las Vegas to Porto Alegre

Cheapest flights from Las Vegas to Porto Alegre
Explore the most affordable flight options available from Las Vegas to Porto Alegre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2512:59 amLAS - POA
2 stops32h 36mUnited Airlines
Mon 12/15:10 pmPOA - LAS
2 stops33h 42mUnited Airlines
Deal found 9/16$613
This LATAM Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2512:43 amLAS - POA
2 stops24h 47mLATAM Airlines
Mon 12/18:10 pmPOA - LAS
2 stops26h 12mLATAM Airlines
Deal found 9/15$1,100
This Copa Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2512:51 amLAS - POA
1 stop18h 39mCopa Airlines
Sun 11/301:35 amPOA - LAS
2 stops23h 32mCopa Airlines
Deal found 9/15$3,475

Cheapflights Fare Finder

 
Customize your flight search to find flights from Las Vegas to Porto Alegre 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, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Las Vegas to Porto Alegre that are best for you.

Fly from

Las Vegas

Fly to

Porto Alegre

Route

Depart

Return

Price

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Wed 11/26

6:57 pm-4:20 pm

2 stops40h 23m

Porto Alegre Salgado Filho

Mon 12/1

5:10 pm-9:52 pm

2 stops33h 42m

$613

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Thu 2/19

11:59 pm-3:05 pm

2 stops34h 06m

Porto Alegre Salgado Filho

Mon 2/23

5:10 pm-8:27 pm

2 stops32h 17m

$628

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Tue 11/25

12:43 am-6:30 am

2 stops24h 47m

Porto Alegre Salgado Filho

Mon 12/1

8:10 pm-5:22 pm

2 stops26h 12m

$1,100

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Wed 12/17

12:51 am-12:30 am

1 stop18h 39m

$682

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Thu 12/18

11:24 pm-7:20 pm

2 stops38h 56m

$806

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Thu 12/18

7:00 am-10:55 am

2 stops22h 55m

$873

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Wed 12/17

12:59 am-2:35 pm

3 stops32h 36m

$1,495

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Best time to book a flight from Las Vegas to Porto Alegre

Have a flexible travel schedule? Discover the best time to fly to Porto Alegre from Las Vegas with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Las Vegas to Porto Alegre. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Las Vegas to Porto Alegre?

    United Airlines can get you from Las Vegas to Porto Alegre in just under 40h 23m. Your travel time can differ by up to . Airlines will cover a distance of 6164 mi.

  • What are the cheapest airlines to fly from Las Vegas to Porto Alegre one-way?

    For one-way options, check prices for Copa Airlines. According to our data, you can fly for as low as $682. Users have also found prices from $806 and $873 on LATAM Airlines and GOL, respectively.

  • Can I find deals for flights from Las Vegas to Porto Alegre that include hotel bookings?

    Yes. In addition to deals on Las Vegas to Porto Alegre flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Las Vegas to Porto Alegre?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Las Vegas to Porto Alegre.

  • Can I find deals for business class flights from Las Vegas to Porto Alegre?

    Yes. Cheapflights offers flight deals from Las Vegas to Porto Alegre by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Complete your trip

Complete your trip to Porto Alegre by adding a car rental and/or hotel reservation to your travel itinerary.
Porto Alegre car rentals
Porto Alegre Salgado Filho Airport car rentals

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.