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Cheap flights from Las Vegas to Porto Alegre from $334

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 Porto Alegre departing on 3/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Travel Warning: Due to flooding, the airport may be currently closed. Check local travel advisories before booking.

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Find the cheapest flights from Las Vegas to Porto Alegre

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
8:00 am - 1:00 pm
LAS
-
POA
25h 00m2 stops
American Airlines Logo
5:55 pm - 8:13 pm
POA
-
LAS
30h 18m2 stops
$789American Airlines
Sun, Mar 8 - Wed, Mar 18
United Airlines Logo
6:00 am - 2:05 pm
LAS
-
POA
28h 05m2 stops
United Airlines Logo
3:25 pm - 11:30 pm
POA
-
LAS
36h 05m2 stops
$834United Airlines
Mon, Mar 16 - Wed, Mar 18
United Airlines Logo
6:00 am - 4:20 pm
LAS
-
POA
30h 20m2 stops
United Airlines Logo
5:10 pm - 12:59 pm
POA
-
LAS
23h 49m2 stops
$915United Airlines
Mon, Mar 16 - Wed, Mar 18
Copa Airlines Logo
7:10 pm - 12:25 am
LAS
-
POA
25h 15m2 stops
Copa Airlines Logo
1:30 am - 10:29 pm
POA
-
LAS
24h 59m1 stop
$929Copa Airlines
Mon, Mar 9 - Wed, Mar 18
Copa Airlines Logo
12:58 am - 12:25 am
LAS
-
POA
18h 27m1 stop
Copa Airlines Logo
1:30 am - 11:55 pm
POA
-
LAS
26h 25m2 stops
$1,087Copa Airlines
Sat, Mar 7 - Tue, Mar 17
United Airlines Logo
8:04 am - 2:05 pm
LAS
-
POA
26h 01m2 stops
United Airlines Logo
5:10 pm - 6:05 pm
POA
-
LAS
28h 55m3 stops
$1,217United Airlines
Mon, Mar 16 - Wed, Mar 18
United Airlines Logo
8:04 am - 2:05 pm
LAS
-
POA
26h 01m2 stops
United Airlines Logo
5:10 pm - 6:05 pm
POA
-
LAS
28h 55m3 stops
$1,342United Airlines
Mon, Mar 16 - Wed, Mar 18
United Airlines Logo
7:47 am - 2:20 pm
LAS
-
POA
26h 33m3 stops
United Airlines Logo
5:10 pm - 11:48 am
POA
-
LAS
22h 38m2 stops
$1,626United Airlines
Sun, Mar 8 - Wed, Mar 18
Multiple Airlines Logo
9:19 am - 2:05 pm
LAS
-
POA
24h 46m3 stops
Multiple Airlines Logo
5:55 pm - 11:20 am
POA
-
LAS
21h 25m2 stops
$1,950Multiple Airlines
Mon, Mar 9 - Thu, Mar 19
American Airlines Logo
9:35 am - 9:55 am
LAS
-
POA
20h 20m3 stops
American Airlines Logo
5:55 pm - 5:54 pm
POA
-
LAS
27h 59m2 stops
$1,992American Airlines
Mon, Mar 9 - Thu, Mar 19

United Airlines flights from Las Vegas to Porto Alegre

Our best United Airlines deals on Las Vegas to Porto Alegre flight tickets
United Airlines
Mar 16
LAS6:00 amLas Vegas Harry Reid Intl
28h 05m
2 stops
POA2:05 pmPorto Alegre Salgado Filho
Mar 18
POA3:25 pmPorto Alegre Salgado Filho
36h 05m
2 stops
LAS11:30 pmLas Vegas Harry Reid Intl
$834
Find similar
United Airlines
Mar 16
LAS6:00 amLas Vegas Harry Reid Intl
30h 20m
2 stops
POA4:20 pmPorto Alegre Salgado Filho
Mar 18
POA5:10 pmPorto Alegre Salgado Filho
23h 49m
2 stops
LAS12:59 pmLas Vegas Harry Reid Intl
$915
Find similar
United Airlines
Mar 16
LAS8:04 amLas Vegas Harry Reid Intl
26h 01m
2 stops
POA2:05 pmPorto Alegre Salgado Filho
Mar 18
POA5:10 pmPorto Alegre Salgado Filho
28h 55m
3 stops
LAS6:05 pmLas Vegas Harry Reid Intl
$1,217
Find similar

Copa Airlines flights from Las Vegas to Porto Alegre

Our best Copa Airlines deals on Las Vegas to Porto Alegre flight tickets
Copa Airlines
Mar 9
LAS7:10 pmLas Vegas Harry Reid Intl
25h 15m
2 stops
POA12:25 amPorto Alegre Salgado Filho
Mar 18
POA1:30 amPorto Alegre Salgado Filho
24h 59m
1 stop
LAS10:29 pmLas Vegas Harry Reid Intl
$929
Find similar
Copa Airlines
Mar 7
LAS12:58 amLas Vegas Harry Reid Intl
18h 27m
1 stop
POA12:25 amPorto Alegre Salgado Filho
Mar 17
POA1:30 amPorto Alegre Salgado Filho
26h 25m
2 stops
LAS11:55 pmLas Vegas Harry Reid Intl
$1,087
Find similar
Copa Airlines
Mar 8
LAS1:58 amLas Vegas Harry Reid Intl
18h 27m
1 stop
POA12:25 amPorto Alegre Salgado Filho
Mar 18
POA1:30 amPorto Alegre Salgado Filho
24h 59m
1 stop
LAS10:29 pmLas Vegas Harry Reid Intl
$2,462
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated December 9, 2025.
Use the filters below to find and compare flights from Las Vegas to Porto Alegre that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Sun 3/8

8:00 am-1:00 pm

2 stops25h 00m

Porto Alegre Salgado Filho

Wed 3/18

5:55 pm-8:13 pm

2 stops30h 18m

$789

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Mon 3/16

6:00 am-2:05 pm

2 stops28h 05m

Porto Alegre Salgado Filho

Wed 3/18

3:25 pm-11:30 pm

2 stops36h 05m

$834

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Mon 3/16

6:00 am-4:20 pm

2 stops30h 20m

Porto Alegre Salgado Filho

Wed 3/18

5:10 pm-12:59 pm

2 stops23h 49m

$915

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Mon 3/9

7:10 pm-12:25 am

2 stops25h 15m

Porto Alegre Salgado Filho

Wed 3/18

1:30 am-10:29 pm

1 stop24h 59m

$929

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Sat 3/7

12:58 am-12:25 am

1 stop18h 27m

Porto Alegre Salgado Filho

Tue 3/17

1:30 am-11:55 pm

2 stops26h 25m

$1,087

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Mon 3/16

8:04 am-2:05 pm

2 stops26h 01m

Porto Alegre Salgado Filho

Wed 3/18

5:10 pm-6:05 pm

3 stops28h 55m

$1,217

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Mon 3/16

8:04 am-2:05 pm

2 stops26h 01m

Porto Alegre Salgado Filho

Wed 3/18

5:10 pm-6:05 pm

3 stops28h 55m

$1,342

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Sun 3/8

7:47 am-2:20 pm

3 stops26h 33m

Porto Alegre Salgado Filho

Wed 3/18

5:10 pm-11:48 am

2 stops22h 38m

$1,626

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Mon 3/9

9:19 am-2:05 pm

3 stops24h 46m

Porto Alegre Salgado Filho

Thu 3/19

5:55 pm-11:20 am

2 stops21h 25m

$1,950

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Mon 3/9

9:35 am-9:55 am

3 stops20h 20m

Porto Alegre Salgado Filho

Thu 3/19

5:55 pm-5:54 pm

2 stops27h 59m

$1,992

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Porto Alegre from

How to get the cheapest flight ticket from Las Vegas to Porto Alegre

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 Porto Alegre?

Our data shows that Friday is the least expensive day to fly to Porto Alegre. Tickets to fly out on this day can be as low as $695. On the other hand, Tuesday is the most expensive day to depart from Las Vegas because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $946.

What is the cheapest time of day to depart on your flight to Porto Alegre?

Our most recent data shows that the best time of day to fly to Porto Alegre is at noon. Flights from Las Vegas to Porto Alegre during this time can be as low as $729. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $822 on average. Flights to Porto Alegre from Las Vegas in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Las Vegas to Porto Alegre

Are you open to changing your travel dates? Check out the ideal times to fly from Las Vegas to Porto Alegre according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Las Vegas to Porto Alegre (LAS to POA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Las Vegas to Porto Alegre

Fastest flight time

26h 30m

Direct flights

None
The fastest flight from Las Vegas to Porto Alegre takes 26h 30m
There are no direct flights from Las Vegas to Porto Alegre. There are no popular flight routes from Las Vegas to Porto Alegre.
Search flight deals

  • How far is Las Vegas Harry Reid Intl to Porto Alegre Salgado Filho by plane?

    A flight from Las Vegas Harry Reid Intl to Porto Alegre Salgado Filho will travel around 6167.1 mi. 18h 27m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Las Vegas Harry Reid Intl Airport to Porto Alegre Salgado Filho Airport?

    Prices for flights from Las Vegas Harry Reid Intl Airport to Porto Alegre Salgado Filho Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Las Vegas Harry Reid Intl Airport to Porto Alegre Salgado Filho Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Las Vegas Harry Reid Intl Airport to Porto Alegre Salgado Filho Airport.

  • What documentation or ID do you need to fly to Porto Alegre Salgado Filho Airport?

    The necessary travel and health documents for your Porto Alegre Salgado Filho Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Las Vegas to Porto Alegre?

It is quick and easy to find Las Vegas to Porto Alegre flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Porto Alegre that suits you.

Can I find flights from Las Vegas to Porto Alegre with flexible booking policies on momondo?

Yes. All flights to Porto Alegre from Las Vegas on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Las Vegas to Porto Alegre?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Las Vegas to Porto Alegre.

I’m not ready to book a flight from Las Vegas to Porto Alegre right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Las Vegas to Porto Alegre now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Porto Alegre and let you know when they change.

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