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Cheap flights from Austin to Porto Alegre from $870

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Austin to Porto Alegre departing on 9/20. 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

Discover deals from 900+ travel sites with momondo.

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

Find the cheapest flights from Austin to Porto Alegre

Cheap round-trip flights

Enter your travel dates to find the best prices.
LATAM Airlines Logo
6:27 pm - 12:15 am
AUS
-
POA
27h 48m
2 stops
LATAM Airlines Logo
10:05 am - 11:03 am
POA
-
AUS
26h 58m
2 stops
$870LATAM Airlines
Sun, Sep 20 - Tue, Sep 22
LATAM Airlines Logo
10:30 am - 5:00 pm
AUS
-
POA
28h 30m
2 stops
LATAM Airlines Logo
11:00 am - 9:25 am
POA
-
AUS
24h 25m
2 stops
$881LATAM Airlines
Sun, Sep 20 - Tue, Sep 22
United Airlines Logo
7:00 am - 9:45 am
AUS
-
POA
24h 45m
2 stops
United Airlines Logo
5:10 pm - 3:04 pm
POA
-
AUS
23h 54m
2 stops
$892United Airlines
Sun, Sep 20 - Tue, Sep 22
American Airlines Logo
7:00 am - 10:50 am
AUS
-
POA
25h 50m
2 stops
American Airlines Logo
6:25 pm - 11:22 am
POA
-
AUS
18h 57m
2 stops
$921American Airlines
Tue, Jul 7 - Tue, Aug 11
United Airlines Logo
9:33 am - 9:45 am
AUS
-
POA
22h 12m
2 stops
United Airlines Logo
5:10 pm - 3:04 pm
POA
-
AUS
23h 54m
2 stops
$941United Airlines
Sun, Sep 20 - Tue, Sep 22
GOL Logo
5:30 pm - 5:45 pm
AUS
-
POA
22h 15m
2 stops
GOL Logo
3:45 pm - 5:12 pm
POA
-
AUS
27h 27m
2 stops
$1,006GOL
Fri, Jul 31 - Fri, Aug 7
LATAM Airlines Logo
1:31 pm - 5:00 pm
AUS
-
POA
25h 29m
2 stops
LATAM Airlines Logo
7:05 pm - 9:23 pm
POA
-
AUS
52h 18m
3 stops
$1,817LATAM Airlines
Fri, Jul 31 - Fri, Aug 7
Air Canada Logo
1:01 pm - 2:20 pm
AUS
-
POA
23h 19m
3 stops
Air Canada Logo
5:10 pm - 10:45 am
POA
-
AUS
19h 35m
2 stops
$2,935Air Canada
Tue, Jul 7 - Tue, Aug 11

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LATAM Airlines flights from Austin to Porto Alegre

Our best LATAM Airlines deals on Austin to Porto Alegre flight tickets
LATAM Airlines
Sep 20
AUS6:27 pmAustin Bergstrom
27h 48m
2 stops
POA12:15 amPorto Alegre Salgado Filho
Sep 22
POA10:05 amPorto Alegre Salgado Filho
26h 58m
2 stops
AUS11:03 amAustin Bergstrom
$870
LATAM Airlines
Sep 20
AUS10:30 amAustin Bergstrom
28h 30m
2 stops
POA5:00 pmPorto Alegre Salgado Filho
Sep 22
POA11:00 amPorto Alegre Salgado Filho
24h 25m
2 stops
AUS9:25 amAustin Bergstrom
$881
LATAM Airlines
Jul 31
AUS1:31 pmAustin Bergstrom
25h 29m
2 stops
POA5:00 pmPorto Alegre Salgado Filho
Aug 7
POA7:05 pmPorto Alegre Salgado Filho
52h 18m
3 stops
AUS9:23 pmAustin Bergstrom
$1,817

United Airlines flights from Austin to Porto Alegre

Our best United Airlines deals on Austin to Porto Alegre flight tickets
United Airlines
Sep 20
AUS7:00 amAustin Bergstrom
24h 45m
2 stops
POA9:45 amPorto Alegre Salgado Filho
Sep 22
POA5:10 pmPorto Alegre Salgado Filho
23h 54m
2 stops
AUS3:04 pmAustin Bergstrom
$892
United Airlines
Sep 20
AUS9:33 amAustin Bergstrom
22h 12m
2 stops
POA9:45 amPorto Alegre Salgado Filho
Sep 22
POA5:10 pmPorto Alegre Salgado Filho
23h 54m
2 stops
AUS3:04 pmAustin Bergstrom
$941

momondo Fare Finder

 
Customize your flight search to find flights from Austin 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 20, 2026.
Use the filters below to find and compare flights from Austin to Porto Alegre that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Sun 9/20

6:27 pm-12:15 am

2 stops27h 48m

Porto Alegre Salgado Filho

Tue 9/22

10:05 am-11:03 am

2 stops26h 58m

$870

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Sun 9/20

10:30 am-5:00 pm

2 stops28h 30m

Porto Alegre Salgado Filho

Tue 9/22

11:00 am-9:25 am

2 stops24h 25m

$881

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Sun 9/20

7:00 am-9:45 am

2 stops24h 45m

Porto Alegre Salgado Filho

Tue 9/22

5:10 pm-3:04 pm

2 stops23h 54m

$892

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Tue 7/7

7:00 am-10:50 am

2 stops25h 50m

Porto Alegre Salgado Filho

Tue 8/11

6:25 pm-11:22 am

2 stops18h 57m

$921

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Sun 9/20

9:33 am-9:45 am

2 stops22h 12m

Porto Alegre Salgado Filho

Tue 9/22

5:10 pm-3:04 pm

2 stops23h 54m

$941

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Fri 7/31

5:30 pm-5:45 pm

2 stops22h 15m

Porto Alegre Salgado Filho

Fri 8/7

3:45 pm-5:12 pm

2 stops27h 27m

$1,006

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Fri 7/31

1:31 pm-5:00 pm

2 stops25h 29m

Porto Alegre Salgado Filho

Fri 8/7

7:05 pm-9:23 pm

3 stops52h 18m

$1,817
Quickest round-trip

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Tue 7/7

1:01 pm-2:20 pm

3 stops23h 19m

Porto Alegre Salgado Filho

Tue 8/11

5:10 pm-10:45 am

2 stops19h 35m

$2,935

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Porto Alegre from

How to get the cheapest flight ticket from Austin 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 airlines fly to Porto Alegre?

LATAM Airlines, GOL and American Airlines are the top three most popular airlines that fly to Porto Alegre from Austin according to our data. LATAM Airlines is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Porto Alegre. Keep in mind that there are 3 different airlines that fly to Porto Alegre on a routine basis, so you have a few additional options to choose from.

When to book flights from Austin to Porto Alegre

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

Cheap Austin to Porto Alegre (AUS to POA) flight deals and tips

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

Fastest flight time

22h 12m

Direct flights

None
The fastest flight from Austin to Porto Alegre takes 22h 12m
There are no direct flights from Austin to Porto Alegre. There are no popular flight routes from Austin to Porto Alegre.
Search flight deals

Frequently asked questions about flying from Austin to Porto Alegre

  • How far is Austin Bergstrom to Porto Alegre Salgado Filho by plane?

    Austin Bergstrom and Porto Alegre Salgado Filho are 5165.2 mi apart from one another. By plane, this route typically takes 22h 12m.

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

    Prices for flights from Austin Bergstrom Airport to Porto Alegre Salgado Filho Airport refresh daily.

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

  • How old do you have to be to fly from Austin Bergstrom 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 Austin Bergstrom Airport to Porto Alegre Salgado Filho Airport.

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

    The required travel and health documents for your Porto Alegre Salgado Filho Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Porto Alegre Salgado Filho Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Austin to Porto Alegre?

Best airlines flying from Austin to Porto Alegre

Compare and see reviews for airlines that fly from Austin to Porto Alegre with momondo
Airline
Rating
Free Cancellation
Price
GOLPriceFrom $697Free CancellationRating
7.3
1,234 reviews
Search GOL flights
American AirlinesPriceFrom $730Free CancellationRating
7.1
11,715 reviews
Search American Airlines flights
LATAM AirlinesPriceFrom $767Free CancellationRating
7.4
1,939 reviews
Search LATAM Airlines flights

Why use momondo?

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

Finding the right flight to Porto Alegre from Austin 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 Austin to Porto Alegre with flexible booking policies on momondo?

Flights from Austin 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 Austin to Porto Alegre?

momondo provides multiple filters to help you find the best flight to Porto Alegre from Austin. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Austin to Porto Alegre flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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