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Porto Alegre

$289+ Cheap flights from Las Vegas (LAS) to Porto Alegre (POA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — POA
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
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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 January 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Ovago
2 stars

Round-trip from

$550
(United Airlines)

One-way from

$289
(Copa Airlines)

Popular in

March

Cheapest in

August

Average price

$767
Provider with most accurate pricing for Las Vegas Harry Reid Intl-Porto Alegre Salgado Filho flight deals.
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Provider most trusted by Cheapflights users for Las Vegas Harry Reid Intl-Porto Alegre Salgado Filho flights.
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From Las Vegas Harry Reid Intl to Porto Alegre Salgado Filho
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One-way flight from Las Vegas Harry Reid Intl to Porto Alegre Salgado Filho
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Highest demand for flights based on searches. 18% potential increase in price ($154 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 8, 2026.

This United Airlines deal was found by Cheapflights users on 1/7. 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.
Wed 2/254:45 pmLAS - POA
2 stops42h 35mUnited Airlines
Wed 3/45:10 pmPOA - LAS
2 stops27h 26mUnited Airlines
Deal found 1/7$550
This United Airlines deal was found by Cheapflights users on 1/7. 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 3/177:00 amLAS - POA
2 stops27h 25mUnited Airlines
Thu 3/193:30 pmPOA - LAS
2 stops34h 48mUnited Airlines
Deal found 1/7$637
This Copa Airlines deal was found by Cheapflights users on 1/7. 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.
Wed 2/257:47 pmLAS - POA
2 stops23h 38mCopa Airlines
Tue 3/31:30 amPOA - LAS
1 stop25h 59mCopa Airlines
Deal found 1/7$890

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 January 8, 2026.
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 2/25

4:45 pm-4:20 pm

2 stops42h 35m

Porto Alegre Salgado Filho

Wed 3/4

5:10 pm-3:36 pm

2 stops27h 26m

$550

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Tue 3/17

7:00 am-2:25 pm

2 stops27h 25m

Porto Alegre Salgado Filho

Thu 3/19

3:30 pm-10:18 pm

2 stops34h 48m

$637

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Wed 2/25

7:47 pm-12:25 am

2 stops23h 38m

Porto Alegre Salgado Filho

Tue 3/3

1:30 am-10:29 pm

1 stop25h 59m

$890

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Wed 2/25

12:58 am-12:25 am

1 stop18h 27m

$289

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Thu 2/26

1:20 pm-5:45 pm

2 stops23h 25m

$295

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Wed 2/25

4:45 pm-2:20 pm

2 stops40h 35m

$310

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Thu 2/26

6:00 am-8:35 am

3 stops45h 35m

$352

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Wed 2/25

7:40 am-3:05 pm

3 stops26h 25m

$479

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Tue 2/24

12:58 am-12:25 am

1 stop18h 27m

$617

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Compare providers for flights from Las Vegas to Porto Alegre

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Las Vegas to Porto Alegre in January.
ProviderPrice AccuracyTrust Score*
OvagoPrice Accuracy2 starsTrust Score*2 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Las Vegas-Porto Alegre flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Las Vegas-Porto Alegre flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Las Vegas-Porto Alegre flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Las Vegas-Porto Alegre flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Las Vegas-Porto Alegre flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 and Copa Airlines can get you from Las Vegas to Porto Alegre in just under 23h 38m. Your travel time can differ by up to 18h 57m. Airlines will cover a distance of 6164 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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

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