$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 12/17. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — POA
Jan 11 — Jan 181
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
Best flights from Las Vegas to Porto AlegreDiscover carefully curated flight deals from Las Vegas to Porto Alegre that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.
Discover carefully curated flight deals from Las Vegas to Porto Alegre that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.
This United Airlines deal was found by Cheapflights users on 12/9. 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.
Mon 3/167:00 amLAS - POA
2 stops29h 20mUnited Airlines
Wed 3/185:10 pmPOA - LAS
2 stops43h 03mUnited Airlines
Deal found 12/9![United Airlines logo]()
$752
Find 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 December 12, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | Ovago 2 stars |
Round-trip from | $752 (United Airlines) |
One-way from | $289 (Copa Airlines) |
Popular in | December |
Cheapest in | August |
Average price | $1,058 |
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 December 12, 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
Mon 3/16
7:00 am-4:20 pm
2 stops29h 20m
Porto Alegre Salgado Filho
Wed 3/18
5:10 pm-8:13 am
2 stops43h 03m
$752
Las VegasPorto Alegre
LAS - POA
LASPOA
Las Vegas Harry Reid Intl
Wed 12/17
12:51 am-12:30 am
1 stop18h 39m
$289
Las VegasPorto Alegre
LAS - POA
LASPOA
Las Vegas Harry Reid Intl
Tue 2/17
11:59 pm-6:20 pm
2 stops37h 21m
$461
Las VegasPorto Alegre
LAS - POA
LASPOA
Las Vegas Harry Reid Intl
Thu 12/18
7:00 am-9:55 am
2 stops21h 55m
$616
Las VegasPorto Alegre
LAS - POA
LASPOA
Las Vegas Harry Reid Intl
Wed 12/17
12:59 am-6:20 pm
3 stops36h 21m
$734
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 December.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*2 stars |
- 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.