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Porto Alegre

$455+ 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 2/17. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — POA
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
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 November 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$591
(LATAM Airlines)

One-way from

$455
(United Airlines)

Popular in

December

Cheapest in

August

Average price

$644
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. 10% potential increase in price ($92 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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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 November 26, 2025.

This United Airlines deal was found by Cheapflights users on 11/24. 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 11/2611:50 pmLAS - POA
2 stops35h 30mUnited Airlines
Mon 12/13:25 pmPOA - LAS
2 stops35h 33mUnited Airlines
Deal found 11/24$638
This LATAM Airlines deal was found by Cheapflights users on 11/25. 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 12/16:00 pmPOA - LAS
2 stops23h 31mLATAM Airlines
Deal found 11/25$807
This GOL deal was found by Cheapflights users on 11/26. 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 GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2612:56 pmLAS - POA
2 stops23h 54mGOL
Mon 12/11:40 pmPOA - LAS
2 stops39h 19mGOL
Deal found 11/26$967
This American Airlines deal was found by Cheapflights users on 11/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/269:17 amLAS - POA
3 stops19h 38mAmerican Airlines
Mon 12/17:30 pmPOA - LAS
2 stops21h 09mAmerican Airlines
Deal found 11/26$2,141
This Copa Airlines deal was found by Cheapflights users on 11/24. 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 11/264:41 pmLAS - POA
2 stops26h 49mCopa Airlines
Sun 11/301:35 amPOA - LAS
2 stops25h 23mCopa Airlines
Deal found 11/24$4,011

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 November 26, 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

Tue 3/3

10:15 pm-6:30 am

2 stops27h 15m

Porto Alegre Salgado Filho

Thu 3/5

5:55 pm-2:29 pm

2 stops25h 34m

$591

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Tue 2/17

2:05 pm-6:20 pm

2 stops23h 15m

$455

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Tue 2/17

10:58 am-4:30 pm

2 stops24h 32m

$533

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Thu 12/18

7:14 am-5:00 pm

2 stops28h 46m

$895

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Wed 12/17

12:51 am-12:30 am

1 stop18h 39m

$981

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Wed 12/17

12:59 am-2:40 pm

3 stops32h 41m

$1,262

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/24

  • 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 FlightHub the most. FlightHub 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?

    LATAM Airlines can get you from Las Vegas to Porto Alegre in just under 27h 15m. Your travel time can differ by up to . Airlines will cover a distance of 6164 mi.

  • 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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