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Cheap flights from Austin to Porto Alegre from $639

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 8/25. 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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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
10:52 am - 9:15 am
AUS
-
POA
20h 23m
2 stops
LATAM Airlines Logo
7:25 am - 12:19 am
POA
-
AUS
18h 54m
2 stops
$639LATAM Airlines
Tue, Aug 25 - Thu, Aug 27
GOL Logo
10:50 am - 12:15 pm
AUS
-
POA
23h 25m
2 stops
GOL Logo
2:00 pm - 10:02 am
POA
-
AUS
22h 02m
2 stops
$642GOL
Sun, May 10 - Tue, May 26
GOL Logo
4:12 pm - 3:40 pm
AUS
-
POA
21h 28m
2 stops
GOL Logo
6:30 pm - 10:41 am
POA
-
AUS
18h 11m
2 stops
$687GOL
Thu, May 14 - Sun, Jun 14
LATAM Airlines Logo
5:25 am - 5:00 pm
AUS
-
POA
33h 35m
2 stops
LATAM Airlines Logo
7:05 pm - 9:18 pm
POA
-
AUS
28h 13m
2 stops
$719LATAM Airlines
Tue, May 12 - Tue, May 26
LATAM Airlines Logo
2:48 pm - 5:00 pm
AUS
-
POA
24h 12m
2 stops
LATAM Airlines Logo
6:40 am - 2:45 pm
POA
-
AUS
34h 05m
2 stops
$722LATAM Airlines
Tue, May 12 - Wed, May 27
GOL Logo
10:45 am - 10:35 am
AUS
-
POA
21h 50m
2 stops
GOL Logo
9:10 pm - 11:28 am
POA
-
AUS
40h 18m
2 stops
$731GOL
Fri, Jun 12 - Fri, Jun 19
GOL Logo
4:12 pm - 3:40 pm
AUS
-
POA
21h 28m
2 stops
GOL Logo
2:05 pm - 10:41 am
POA
-
AUS
22h 36m
2 stops
$782GOL
Thu, May 14 - Sun, Jun 14
GOL Logo
6:25 pm - 1:55 pm
AUS
-
POA
41h 30m
2 stops
GOL Logo
2:05 pm - 10:02 am
POA
-
AUS
21h 57m
2 stops
$792GOL
Thu, May 14 - Sun, Jun 14
LATAM Airlines Logo
5:25 am - 6:15 am
AUS
-
POA
22h 50m
2 stops
LATAM Airlines Logo
6:40 am - 2:45 pm
POA
-
AUS
34h 05m
2 stops
$832LATAM Airlines
Sun, May 10 - Wed, May 27
LATAM Airlines Logo
10:38 am - 7:20 pm
AUS
-
POA
30h 42m
2 stops
LATAM Airlines Logo
7:25 am - 12:31 am
POA
-
AUS
19h 06m
2 stops
$836LATAM Airlines
Tue, May 12 - Thu, May 28

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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
Aug 25
AUS10:52 amAustin Bergstrom
20h 23m
2 stops
POA9:15 amPorto Alegre Salgado Filho
Aug 27
POA7:25 amPorto Alegre Salgado Filho
18h 54m
2 stops
AUS12:19 amAustin Bergstrom
$639
LATAM Airlines
May 12
AUS5:25 amAustin Bergstrom
33h 35m
2 stops
POA5:00 pmPorto Alegre Salgado Filho
May 26
POA7:05 pmPorto Alegre Salgado Filho
28h 13m
2 stops
AUS9:18 pmAustin Bergstrom
$719
LATAM Airlines
May 12
AUS2:48 pmAustin Bergstrom
24h 12m
2 stops
POA5:00 pmPorto Alegre Salgado Filho
May 27
POA6:40 amPorto Alegre Salgado Filho
34h 05m
2 stops
AUS2:45 pmAustin Bergstrom
$722

GOL flights from Austin to Porto Alegre

Our best GOL deals on Austin to Porto Alegre flight tickets
GOL
May 10
AUS10:50 amAustin Bergstrom
23h 25m
2 stops
POA12:15 pmPorto Alegre Salgado Filho
May 26
POA2:00 pmPorto Alegre Salgado Filho
22h 02m
2 stops
AUS10:02 amAustin Bergstrom
$642
GOL
May 14
AUS4:12 pmAustin Bergstrom
21h 28m
2 stops
POA3:40 pmPorto Alegre Salgado Filho
Jun 14
POA6:30 pmPorto Alegre Salgado Filho
18h 11m
2 stops
AUS10:41 amAustin Bergstrom
$687
GOL
Jun 12
AUS10:45 amAustin Bergstrom
21h 50m
2 stops
POA10:35 amPorto Alegre Salgado Filho
Jun 19
POA9:10 pmPorto Alegre Salgado Filho
40h 18m
2 stops
AUS11:28 amAustin Bergstrom
$731

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 April 30, 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
Quickest round-trip

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Tue 8/25

10:52 am-9:15 am

2 stops20h 23m

Porto Alegre Salgado Filho

Thu 8/27

7:25 am-12:19 am

2 stops18h 54m

$639

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Sun 5/10

10:50 am-12:15 pm

2 stops23h 25m

Porto Alegre Salgado Filho

Tue 5/26

2:00 pm-10:02 am

2 stops22h 02m

$642

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Thu 5/14

4:12 pm-3:40 pm

2 stops21h 28m

Porto Alegre Salgado Filho

Sun 6/14

6:30 pm-10:41 am

2 stops18h 11m

$687

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Tue 5/12

5:25 am-5:00 pm

2 stops33h 35m

Porto Alegre Salgado Filho

Tue 5/26

7:05 pm-9:18 pm

2 stops28h 13m

$719

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Tue 5/12

2:48 pm-5:00 pm

2 stops24h 12m

Porto Alegre Salgado Filho

Wed 5/27

6:40 am-2:45 pm

2 stops34h 05m

$722

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Fri 6/12

10:45 am-10:35 am

2 stops21h 50m

Porto Alegre Salgado Filho

Fri 6/19

9:10 pm-11:28 am

2 stops40h 18m

$731

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Thu 5/14

4:12 pm-3:40 pm

2 stops21h 28m

Porto Alegre Salgado Filho

Sun 6/14

2:05 pm-10:41 am

2 stops22h 36m

$782

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Thu 5/14

6:25 pm-1:55 pm

2 stops41h 30m

Porto Alegre Salgado Filho

Sun 6/14

2:05 pm-10:02 am

2 stops21h 57m

$792

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Sun 5/10

5:25 am-6:15 am

2 stops22h 50m

Porto Alegre Salgado Filho

Wed 5/27

6:40 am-2:45 pm

2 stops34h 05m

$832

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Tue 5/12

10:38 am-7:20 pm

2 stops30h 42m

Porto Alegre Salgado Filho

Thu 5/28

7:25 am-12:31 am

2 stops19h 06m

$836

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 38% 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

17h 35m

Direct flights

None
The fastest flight from Austin to Porto Alegre takes 17h 35m
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 17h 35m.

  • 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
1,207 reviews
Search GOL flights
American AirlinesPriceFrom $730Free CancellationRating
7.1
11,683 reviews
Search American Airlines flights
LATAM AirlinesPriceFrom $767Free CancellationRating
7.4
1,911 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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