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Cheap flights from Las Vegas to Porto Alegre from $322

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 5/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
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.
United Airlines Logo
12:45 pm - 2:05 pm
LAS
-
POA
21h 20m
2 stops
United Airlines Logo
3:25 pm - 7:57 pm
POA
-
LAS
32h 32m
2 stops
$894United Airlines
Mon, Aug 24 - Thu, Aug 27
United Airlines Logo
8:00 am - 9:45 am
LAS
-
POA
21h 45m
3 stops
United Airlines Logo
2:05 pm - 3:10 pm
POA
-
LAS
29h 05m
2 stops
$944United Airlines
Mon, Aug 24 - Thu, Aug 27
Multiple Airlines Logo
6:00 am - 6:15 pm
LAS
-
POA
32h 15m
2 stops
Multiple Airlines Logo
4:45 am - 12:04 pm
POA
-
LAS
35h 19m
2 stops
$1,228Multiple Airlines
Thu, Apr 23 - Thu, Apr 30
Copa Airlines Logo
12:45 am - 12:20 am
LAS
-
POA
19h 35m
1 stop
Copa Airlines Logo
1:35 am - 12:19 am
POA
-
LAS
26h 44m
2 stops
$1,240Copa Airlines
Wed, Apr 22 - Wed, Apr 29
Multiple Airlines Logo
3:15 pm - 12:20 am
LAS
-
POA
29h 05m
3 stops
Multiple Airlines Logo
10:10 am - 2:00 pm
POA
-
LAS
31h 50m
3 stops
$1,362Multiple Airlines
Thu, Apr 23 - Thu, Apr 30
Air Canada Logo
11:59 pm - 2:35 pm
LAS
-
POA
34h 36m
3 stops
Air Canada Logo
10:25 am - 11:04 am
POA
-
LAS
28h 39m
2 stops
$1,827Air Canada
Thu, Apr 23 - Thu, Apr 30

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 17
LAS8:04 amLas Vegas Harry Reid Intl
26h 21m
2 stops
POA2:25 pmPorto Alegre Salgado Filho
Mar 19
POA3:30 pmPorto Alegre Salgado Filho
44h 43m
2 stops
LAS8:13 amLas Vegas Harry Reid Intl
$717
United Airlines
Mar 17
LAS8:04 amLas Vegas Harry Reid Intl
26h 21m
2 stops
POA2:25 pmPorto Alegre Salgado Filho
Mar 19
POA3:30 pmPorto Alegre Salgado Filho
30h 40m
2 stops
LAS6:10 pmLas Vegas Harry Reid Intl
$819
United Airlines
Aug 24
LAS12:45 pmLas Vegas Harry Reid Intl
21h 20m
2 stops
POA2:05 pmPorto Alegre Salgado Filho
Aug 27
POA3:25 pmPorto Alegre Salgado Filho
32h 32m
2 stops
LAS7:57 pmLas Vegas Harry Reid Intl
$894

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 March 10, 2026.
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

Cheapest round-trip

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Mon 8/24

12:45 pm-2:05 pm

2 stops21h 20m

Porto Alegre Salgado Filho

Thu 8/27

3:25 pm-7:57 pm

2 stops32h 32m

$894

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Mon 8/24

8:00 am-9:45 am

3 stops21h 45m

Porto Alegre Salgado Filho

Thu 8/27

2:05 pm-3:10 pm

2 stops29h 05m

$944

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Thu 4/23

6:00 am-6:15 pm

2 stops32h 15m

Porto Alegre Salgado Filho

Thu 4/30

4:45 am-12:04 pm

2 stops35h 19m

$1,228
Quickest round-trip

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Wed 4/22

12:45 am-12:20 am

1 stop19h 35m

Porto Alegre Salgado Filho

Wed 4/29

1:35 am-12:19 am

2 stops26h 44m

$1,240

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Thu 4/23

3:15 pm-12:20 am

3 stops29h 05m

Porto Alegre Salgado Filho

Thu 4/30

10:10 am-2:00 pm

3 stops31h 50m

$1,362

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Thu 4/23

11:59 pm-2:35 pm

3 stops34h 36m

Porto Alegre Salgado Filho

Thu 4/30

10:25 am-11:04 am

2 stops28h 39m

$1,827
Cheapest one-way

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Tue 5/5

7:30 am-3:35 pm

2 stops28h 05m

$322

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Tue 5/5

7:30 am-3:35 pm

2 stops28h 05m

$324

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Tue 5/5

9:23 am-10:40 am

2 stops21h 17m

$325
Quickest one-way

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Thu 4/23

12:45 am-12:20 am

1 stop19h 35m

$466

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest 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 airline that flies from Las Vegas Harry Reid Intl to Porto Alegre Salgado Filho?

American Airlines, Copa Airlines, and United Airlines are the most popular carriers operating from Las Vegas Harry Reid Intl to Porto Alegre Salgado Filho

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

21h 45m

Direct flights

None
The fastest flight from Las Vegas to Porto Alegre takes 21h 45m
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. 21h 45m 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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