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Cheap flights from Las Vegas to Porto Alegre from $574

This is the cheapest round-trip 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 11/26. 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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Find the cheapest flights from Las Vegas to Porto Alegre (LAS-POA)

Cheap round-trip flights

United Airlines Logo
11:59 pm - 4:10 pmLAS-POA
35h 11m2 stops
United Airlines Logo
3:25 pm - 12:57 pmPOA-LAS
26h 32m2 stops
$574United Airlines
Find Deal
Wed, Nov 26 - Mon, Dec 1
United Airlines Logo
6:57 pm - 4:10 pmLAS-POA
40h 13m2 stops
United Airlines Logo
3:25 pm - 9:58 pmPOA-LAS
35h 33m2 stops
$575United Airlines
Find Deal
Wed, Nov 26 - Mon, Dec 1
United Airlines Logo
6:57 pm - 4:10 pmLAS-POA
40h 13m2 stops
United Airlines Logo
3:25 pm - 3:06 pmPOA-LAS
28h 41m2 stops
$577United Airlines
Find Deal
Wed, Nov 26 - Mon, Dec 1
United Airlines Logo
12:59 am - 4:10 pmLAS-POA
35h 11m2 stops
United Airlines Logo
5:10 pm - 11:28 amPOA-LAS
22h 18m2 stops
$604United Airlines
Find Deal
Mon, Oct 13 - Tue, Oct 28
United Airlines Logo
12:59 am - 2:35 pmLAS-POA
32h 36m2 stops
United Airlines Logo
3:25 pm - 10:34 amPOA-LAS
24h 09m2 stops
$625United Airlines
Find Deal
Tue, Nov 25 - Mon, Dec 1
United Airlines Logo
12:59 am - 2:35 pmLAS-POA
32h 36m2 stops
United Airlines Logo
3:25 pm - 3:06 pmPOA-LAS
28h 41m2 stops
$627United Airlines
Find Deal
Tue, Nov 25 - Mon, Dec 1
American Airlines Logo
7:00 am - 10:25 amLAS-POA
23h 25m2 stops
American Airlines Logo
5:55 pm - 6:16 pmPOA-LAS
28h 21m2 stops
$735American Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 28
Copa Airlines Logo
12:51 am - 12:30 amLAS-POA
18h 39m1 stop
Copa Airlines Logo
1:35 am - 8:45 pmPOA-LAS
24h 10m2 stops
$875Copa Airlines
Find Deal
Tue, Nov 25 - Sun, Nov 30
LATAM Airlines Logo
12:35 am - 6:30 amLAS-POA
24h 55m2 stops
LATAM Airlines Logo
6:00 pm - 6:24 pmPOA-LAS
29h 24m2 stops
$920LATAM Airlines
Find Deal
Tue, Nov 25 - Mon, Dec 1
Copa Airlines Logo
4:41 pm - 12:30 amLAS-POA
26h 49m2 stops
Copa Airlines Logo
1:35 am - 9:58 pmPOA-LAS
25h 23m2 stops
$952Copa Airlines
Find Deal
Wed, Nov 26 - Sun, Nov 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
Nov 26
LAS11:59 pmLas Vegas Harry Reid Intl
35h 11m
2 stops
POA4:10 pmPorto Alegre Salgado Filho
Dec 1
POA3:25 pmPorto Alegre Salgado Filho
26h 32m
2 stops
LAS12:57 pmLas Vegas Harry Reid Intl
$574
Find similar
United Airlines
Nov 26
LAS6:57 pmLas Vegas Harry Reid Intl
40h 13m
2 stops
POA4:10 pmPorto Alegre Salgado Filho
Dec 1
POA3:25 pmPorto Alegre Salgado Filho
35h 33m
2 stops
LAS9:58 pmLas Vegas Harry Reid Intl
$575
Find similar
United Airlines
Nov 26
LAS6:57 pmLas Vegas Harry Reid Intl
40h 13m
2 stops
POA4:10 pmPorto Alegre Salgado Filho
Dec 1
POA3:25 pmPorto Alegre Salgado Filho
28h 41m
2 stops
LAS3:06 pmLas Vegas Harry Reid Intl
$577
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
Nov 25
LAS12:51 amLas Vegas Harry Reid Intl
18h 39m
1 stop
POA12:30 amPorto Alegre Salgado Filho
Nov 30
POA1:35 amPorto Alegre Salgado Filho
24h 10m
2 stops
LAS8:45 pmLas Vegas Harry Reid Intl
$875
Find similar
Copa Airlines
Nov 26
LAS4:41 pmLas Vegas Harry Reid Intl
26h 49m
2 stops
POA12:30 amPorto Alegre Salgado Filho
Nov 30
POA1:35 amPorto Alegre Salgado Filho
25h 23m
2 stops
LAS9:58 pmLas Vegas Harry Reid Intl
$952
Find similar
Copa Airlines
Nov 25
LAS12:51 amLas Vegas Harry Reid Intl
18h 39m
1 stop
POA12:30 amPorto Alegre Salgado Filho
Dec 1
POA11:40 amPorto Alegre Salgado Filho
39h 49m
2 stops
LAS10:29 pmLas Vegas Harry Reid Intl
$999
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 August 7, 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

Wed 11/26

11:59 pm-4:10 pm

2 stops35h 11m

Porto Alegre Salgado Filho

Mon 12/1

3:25 pm-12:57 pm

2 stops26h 32m

$574

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Wed 11/26

6:57 pm-4:10 pm

2 stops40h 13m

Porto Alegre Salgado Filho

Mon 12/1

3:25 pm-9:58 pm

2 stops35h 33m

$575

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Wed 11/26

6:57 pm-4:10 pm

2 stops40h 13m

Porto Alegre Salgado Filho

Mon 12/1

3:25 pm-3:06 pm

2 stops28h 41m

$577

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Mon 10/13

12:59 am-4:10 pm

2 stops35h 11m

Porto Alegre Salgado Filho

Tue 10/28

5:10 pm-11:28 am

2 stops22h 18m

$604

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Tue 11/25

12:59 am-2:35 pm

2 stops32h 36m

Porto Alegre Salgado Filho

Mon 12/1

3:25 pm-10:34 am

2 stops24h 09m

$625

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Tue 11/25

12:59 am-2:35 pm

2 stops32h 36m

Porto Alegre Salgado Filho

Mon 12/1

3:25 pm-3:06 pm

2 stops28h 41m

$627

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Tue 10/14

7:00 am-10:25 am

2 stops23h 25m

Porto Alegre Salgado Filho

Tue 10/28

5:55 pm-6:16 pm

2 stops28h 21m

$735

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Tue 11/25

12:51 am-12:30 am

1 stop18h 39m

Porto Alegre Salgado Filho

Sun 11/30

1:35 am-8:45 pm

2 stops24h 10m

$875

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Tue 11/25

12:35 am-6:30 am

2 stops24h 55m

Porto Alegre Salgado Filho

Mon 12/1

6:00 pm-6:24 pm

2 stops29h 24m

$920

Las VegasPorto Alegre

LAS - POA

LASPOA

Las Vegas Harry Reid Intl

Wed 11/26

4:41 pm-12:30 am

2 stops26h 49m

Porto Alegre Salgado Filho

Sun 11/30

1:35 am-9:58 pm

2 stops25h 23m

$952

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 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 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

Best Price Found

$804

Fastest flight time

18h 39m

Direct flights

None

Airports in Porto Alegre

1 airport
The best one-way flight to Porto Alegre from Las Vegas in the past 72 hours is $804. The best round-trip flight deal from Las Vegas to Porto Alegre found on momondo in the last 72 hours is $574.
The fastest flight from Las Vegas to Porto Alegre takes 18h 39m
There are no direct flights from Las Vegas to Porto Alegre. Popular non-direct route for this connection is Las Vegas Harry Reid Intl Airport - Porto Alegre Salgado Filho Airport.
There is 1 airport near Porto Alegre: Porto Alegre Salgado Filho (POA)
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  • 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 39m 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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