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Cheap flights from the United States to Porto Alegre from $284

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Porto Alegre departing on 9/1. 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

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Travel Warning: Due to flooding, the airport may be currently closed. Check local travel advisories before booking.

Find the cheapest flights from the United States to Porto Alegre

Recent round-trip flight deals from the United States to Porto Alegre

Enter your travel dates to find the best prices.
GOL Logo
10:35 pm - 12:40 am
MIA
-
POA
25h 05m
2 stops
GOL Logo
5:55 pm - 4:50 pm
POA
-
MIA
23h 55m
2 stops
$567GOL
Sun, Sep 13 - Mon, Oct 19
GOL Logo
10:35 pm - 12:40 am
MIA
-
POA
25h 05m
2 stops
GOL Logo
4:40 am - 4:50 pm
POA
-
MIA
13h 10m
1 stop
$568GOL
Sun, Sep 13 - Mon, Oct 19
Copa Airlines Logo
6:24 am - 12:15 am
MIA
-
POA
16h 51m
1 stop
Copa Airlines Logo
1:15 am - 12:39 pm
POA
-
MIA
12h 24m
1 stop
$583Copa Airlines
Sun, Aug 16 - Sun, Aug 30
Copa Airlines Logo
6:31 pm - 6:55 am
MIA
-
POA
11h 24m
1 stop
Copa Airlines Logo
1:15 am - 10:48 pm
POA
-
MIA
22h 33m
1 stop
$597Copa Airlines
Mon, Jul 13 - Tue, Aug 11
LATAM Airlines Logo
3:40 pm - 9:20 am
MCO
-
POA
16h 40m
2 stops
LATAM Airlines Logo
7:05 pm - 1:55 pm
POA
-
MCO
19h 50m
2 stops
$644LATAM Airlines
Tue, Sep 15 - Tue, Sep 29
LATAM Airlines Logo
2:35 pm - 12:15 pm
MCO
-
POA
19h 40m
2 stops
LATAM Airlines Logo
5:40 pm - 2:50 pm
POA
-
MCO
23h 10m
2 stops
$653LATAM Airlines
Wed, Nov 18 - Sat, Dec 5
Azul Logo
8:20 am - 12:15 am
FLL
-
POA
14h 55m
1 stop
Azul Logo
10:30 am - 6:20 am
POA
-
FLL
20h 50m
1 stop
$837Azul
Wed, Aug 19 - Tue, Aug 25
Delta Logo
5:15 pm - 3:20 pm
LGA
-
POA
20h 05m
2 stops
Delta Logo
7:30 am - 10:32 am
POA
-
LGA
29h 02m
2 stops
$870Delta
Fri, Nov 20 - Mon, Nov 30
Azul Logo
8:20 am - 12:15 am
FLL
-
POA
14h 55m
1 stop
Azul Logo
9:05 am - 6:20 am
POA
-
FLL
22h 15m
1 stop
$879Azul
Fri, Aug 14 - Thu, Sep 10
Delta Logo
5:15 pm - 3:20 pm
LGA
-
POA
20h 05m
2 stops
Delta Logo
5:30 am - 11:05 pm
POA
-
LGA
19h 35m
2 stops
$1,007Delta
Fri, Nov 20 - Sun, Nov 29

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GOL flights from United States to Porto Alegre

Our best GOL deals on United States to Porto Alegre flight tickets
GOL
Sep 13
MIA10:35 pmMiami
25h 05m
2 stops
POA12:40 amPorto Alegre Salgado Filho
Oct 19
POA5:55 pmPorto Alegre Salgado Filho
23h 55m
2 stops
MIA4:50 pmMiami
$567
GOL
Sep 13
MIA10:35 pmMiami
25h 05m
2 stops
POA12:40 amPorto Alegre Salgado Filho
Oct 19
POA4:40 amPorto Alegre Salgado Filho
13h 10m
1 stop
MIA4:50 pmMiami
$568
GOL
Sep 13
MIA10:35 pmMiami
24h 05m
1 stop
POA11:40 pmPorto Alegre Salgado Filho
Oct 19
POA4:40 amPorto Alegre Salgado Filho
13h 10m
1 stop
MIA4:50 pmMiami
$574

LATAM Airlines flights from United States to Porto Alegre

Our best LATAM Airlines deals on United States to Porto Alegre flight tickets
LATAM Airlines
Nov 18
MCO2:35 pmOrlando
19h 40m
2 stops
POA12:15 pmPorto Alegre Salgado Filho
Dec 5
POA5:40 pmPorto Alegre Salgado Filho
23h 10m
2 stops
MCO2:50 pmOrlando
$653
LATAM Airlines
Sep 15
MCO3:40 pmOrlando
16h 40m
2 stops
POA9:20 amPorto Alegre Salgado Filho
Sep 29
POA9:40 pmPorto Alegre Salgado Filho
22h 50m
2 stops
MCO7:30 pmOrlando
$655
LATAM Airlines
Nov 11
MCO10:00 pmOrlando
37h 50m
2 stops
POA1:50 pmPorto Alegre Salgado Filho
Nov 16
POA8:25 pmPorto Alegre Salgado Filho
24h 05m
1 stop
MCO6:30 pmOrlando
$671

momondo Fare Finder

 
Customize your flight search to find flights from United States 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 June 29, 2026.
Use the filters below to find and compare flights from the United States to Porto Alegre that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MiamiPorto Alegre

MIA - POA

MIAPOA

Miami

Sun 9/13

10:35 pm-12:40 am

2 stops25h 05m

Porto Alegre Salgado Filho

Mon 10/19

5:55 pm-4:50 pm

2 stops23h 55m

$567

MiamiPorto Alegre

MIA - POA

MIAPOA

Miami

Sun 9/13

10:35 pm-12:40 am

2 stops25h 05m

Porto Alegre Salgado Filho

Mon 10/19

4:40 am-4:50 pm

1 stop13h 10m

$568
Quickest round-trip

MiamiPorto Alegre

MIA - POA

MIAPOA

Miami

Sun 8/16

6:24 am-12:15 am

1 stop16h 51m

Porto Alegre Salgado Filho

Sun 8/30

1:15 am-12:39 pm

1 stop12h 24m

$583

MiamiPorto Alegre

MIA - POA

MIAPOA

Miami

Mon 7/13

6:31 pm-6:55 am

1 stop11h 24m

Porto Alegre Salgado Filho

Tue 8/11

1:15 am-10:48 pm

1 stop22h 33m

$597

OrlandoPorto Alegre

MCO - POA

MCOPOA

Orlando

Tue 9/15

3:40 pm-9:20 am

2 stops16h 40m

Porto Alegre Salgado Filho

Tue 9/29

7:05 pm-1:55 pm

2 stops19h 50m

$644

OrlandoPorto Alegre

MCO - POA

MCOPOA

Orlando

Wed 11/18

2:35 pm-12:15 pm

2 stops19h 40m

Porto Alegre Salgado Filho

Sat 12/5

5:40 pm-2:50 pm

2 stops23h 10m

$653

Fort LauderdalePorto Alegre

FLL - POA

FLLPOA

Fort Lauderdale

Wed 8/19

8:20 am-12:15 am

1 stop14h 55m

Porto Alegre Salgado Filho

Tue 8/25

10:30 am-6:20 am

1 stop20h 50m

$837

New YorkPorto Alegre

LGA - POA

LGAPOA

New York LaGuardia

Fri 11/20

5:15 pm-3:20 pm

2 stops20h 05m

Porto Alegre Salgado Filho

Mon 11/30

7:30 am-10:32 am

2 stops29h 02m

$870

Fort LauderdalePorto Alegre

FLL - POA

FLLPOA

Fort Lauderdale

Fri 8/14

8:20 am-12:15 am

1 stop14h 55m

Porto Alegre Salgado Filho

Thu 9/10

9:05 am-6:20 am

1 stop22h 15m

$879

New YorkPorto Alegre

LGA - POA

LGAPOA

New York LaGuardia

Fri 11/20

5:15 pm-3:20 pm

2 stops20h 05m

Porto Alegre Salgado Filho

Sun 11/29

5:30 am-11:05 pm

2 stops19h 35m

$1,007

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Porto Alegre from

How to get the cheapest flight ticket from United States 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 month to fly to Porto Alegre?

The cheapest month to fly to Porto Alegre from United States is in March. Flight prices, which tend to average around $235, are often lower during this time because this is during the off-season. If you’re not able to fly to Porto Alegre in March, then December is your next best option. Flight prices from United States to Porto Alegre during December average around $251.

Can stopping save me money on United States to Porto Alegre flights?

You could potentially save up to 1% on your flight if you consider stops on a United States to Porto Alegre flight.

Cheap United States to Porto Alegre flight deals and tips

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

Fastest flight time

13h 05m

Direct flights

None
The fastest flight from United States to Porto Alegre takes 13h 05m
There are no direct flights from United States to Porto Alegre. There are no popular flight routes from United States to Porto Alegre.
Search flight deals

Frequently asked questions about flying from the United States to Porto Alegre

  • When did momondo last update prices for flights from United States to Porto Alegre Salgado Filho Airport?

    Prices for flights from United States to Porto Alegre Salgado Filho Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from United States to Porto Alegre Salgado Filho Airport?

  • How old do you have to be to fly from United States to Porto Alegre Salgado Filho Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United States 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.

Best airlines flying from United States to Porto Alegre

Compare and see reviews for airlines that fly from United States to Porto Alegre with momondo
Airline
Rating
Free Cancellation
Price
Copa AirlinesPriceFrom $294Free CancellationRating
7.6
1,566 reviews
Search Copa Airlines flights
United AirlinesPriceFrom $334Free CancellationRating
7.4
9,897 reviews
Search United Airlines flights
DeltaPriceFrom $349Free CancellationRating
7.8
8,451 reviews
Search Delta flights
American AirlinesPriceFrom $502Free CancellationRating
7.1
11,766 reviews
Search American Airlines flights
GOLPriceFrom $540Free CancellationRating
7.3
1,250 reviews
Search GOL flights
LATAM AirlinesPriceFrom $584Free CancellationRating
7.4
1,940 reviews
Search LATAM Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from United States to Porto Alegre?

Finding the right flight to Porto Alegre from United States is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Porto Alegre quick and easy, saving you time and money.

Can I find flights from United States to Porto Alegre with flexible booking policies on momondo?

Flights from United States to Porto Alegre with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from United States to Porto Alegre?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Porto Alegre from United States.

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

If you are simply researching potential flights to Porto Alegre, momondo offers a useful price alert feature which will track prices for flights to Porto Alegre from United States and alert you when they change.

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