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Cheap flights from Austin to Porto Alegre from $545

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Austin to Porto Alegre departing on 12/19. 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.
Copa Airlines Logo
3:31 pm - 12:20 am
AUS
-
POA
30h 49m
1 stop
Copa Airlines Logo
1:20 am - 1:48 pm
POA
-
AUS
14h 28m
1 stop
$847Copa Airlines
Mon, Aug 31 - Wed, Sep 2
LATAM Airlines Logo
8:25 am - 6:15 pm
AUS
-
POA
31h 50m
2 stops
LATAM Airlines Logo
9:55 pm - 9:23 pm
POA
-
AUS
25h 28m
2 stops
$899LATAM Airlines
Thu, Aug 13 - Sun, Aug 16
Multiple Airlines Logo
3:31 pm - 12:50 am
AUS
-
POA
31h 19m
2 stops
Multiple Airlines Logo
1:20 am - 1:48 pm
POA
-
AUS
14h 28m
1 stop
$914Multiple Airlines
Mon, Aug 31 - Wed, Sep 2
GOL Logo
12:02 pm - 3:35 pm
AUS
-
POA
25h 33m
2 stops
GOL Logo
2:55 pm - 11:12 am
POA
-
AUS
22h 17m
2 stops
$922GOL
Fri, Sep 11 - Sat, Sep 19
GOL Logo
12:07 pm - 3:05 pm
AUS
-
POA
24h 58m
2 stops
GOL Logo
4:20 pm - 11:05 am
POA
-
AUS
20h 45m
2 stops
$922GOL
Mon, Aug 31 - Thu, Sep 3
Multiple Airlines Logo
5:15 am - 8:05 pm
AUS
-
POA
36h 50m
2 stops
Multiple Airlines Logo
1:20 am - 1:48 pm
POA
-
AUS
14h 28m
1 stop
$953Multiple Airlines
Sun, Aug 30 - Wed, Sep 2
LATAM Airlines Logo
8:25 am - 6:15 pm
AUS
-
POA
31h 50m
2 stops
LATAM Airlines Logo
4:45 am - 12:18 am
POA
-
AUS
21h 33m
3 stops
$1,001LATAM Airlines
Thu, Aug 13 - Sun, Aug 16
LATAM Airlines Logo
8:30 am - 6:15 pm
AUS
-
POA
55h 45m
3 stops
LATAM Airlines Logo
2:20 pm - 9:35 pm
POA
-
AUS
33h 15m
2 stops
$1,059LATAM Airlines
Fri, Sep 11 - Sat, Sep 19
Copa Airlines Logo
7:00 am - 12:20 am
AUS
-
POA
15h 20m
2 stops
Copa Airlines Logo
1:20 am - 1:48 pm
POA
-
AUS
14h 28m
1 stop
$1,351Copa Airlines
Fri, Sep 11 - Fri, Sep 18

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Copa Airlines flights from Austin to Porto Alegre

Our best Copa Airlines deals on Austin to Porto Alegre flight tickets
Copa Airlines
Aug 31
AUS3:31 pmAustin Bergstrom
30h 49m
1 stop
POA12:20 amPorto Alegre Salgado Filho
Sep 2
POA1:20 amPorto Alegre Salgado Filho
14h 28m
1 stop
AUS1:48 pmAustin Bergstrom
$847
Copa Airlines
Sep 11
AUS7:00 amAustin Bergstrom
15h 20m
2 stops
POA12:20 amPorto Alegre Salgado Filho
Sep 18
POA1:20 amPorto Alegre Salgado Filho
14h 28m
1 stop
AUS1:48 pmAustin Bergstrom
$1,271
Copa Airlines
Sep 11
AUS7:00 amAustin Bergstrom
15h 20m
2 stops
POA12:20 amPorto Alegre Salgado Filho
Sep 18
POA1:20 amPorto Alegre Salgado Filho
14h 28m
1 stop
AUS1:48 pmAustin Bergstrom
$1,351

LATAM Airlines flights from Austin to Porto Alegre

Our best LATAM Airlines deals on Austin to Porto Alegre flight tickets
LATAM Airlines
Aug 13
AUS8:25 amAustin Bergstrom
31h 50m
2 stops
POA6:15 pmPorto Alegre Salgado Filho
Aug 16
POA9:55 pmPorto Alegre Salgado Filho
25h 28m
2 stops
AUS9:23 pmAustin Bergstrom
$899
LATAM Airlines
Aug 13
AUS8:25 amAustin Bergstrom
31h 50m
2 stops
POA6:15 pmPorto Alegre Salgado Filho
Aug 16
POA4:45 amPorto Alegre Salgado Filho
21h 33m
3 stops
AUS12:18 amAustin Bergstrom
$1,001
LATAM Airlines
Sep 11
AUS8:30 amAustin Bergstrom
55h 45m
3 stops
POA6:15 pmPorto Alegre Salgado Filho
Sep 19
POA2:20 pmPorto Alegre Salgado Filho
33h 15m
2 stops
AUS9:35 pmAustin Bergstrom
$1,059

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 August 2, 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

Mon 8/31

3:31 pm-12:20 am

1 stop30h 49m

Porto Alegre Salgado Filho

Wed 9/2

1:20 am-1:48 pm

1 stop14h 28m

$847

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Thu 8/13

8:25 am-6:15 pm

2 stops31h 50m

Porto Alegre Salgado Filho

Sun 8/16

9:55 pm-9:23 pm

2 stops25h 28m

$899

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Mon 8/31

3:31 pm-12:50 am

2 stops31h 19m

Porto Alegre Salgado Filho

Wed 9/2

1:20 am-1:48 pm

1 stop14h 28m

$914

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Fri 9/11

12:02 pm-3:35 pm

2 stops25h 33m

Porto Alegre Salgado Filho

Sat 9/19

2:55 pm-11:12 am

2 stops22h 17m

$922

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Mon 8/31

12:07 pm-3:05 pm

2 stops24h 58m

Porto Alegre Salgado Filho

Thu 9/3

4:20 pm-11:05 am

2 stops20h 45m

$922

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Sun 8/30

5:15 am-8:05 pm

2 stops36h 50m

Porto Alegre Salgado Filho

Wed 9/2

1:20 am-1:48 pm

1 stop14h 28m

$953

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Thu 8/13

8:25 am-6:15 pm

2 stops31h 50m

Porto Alegre Salgado Filho

Sun 8/16

4:45 am-12:18 am

3 stops21h 33m

$1,001

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Fri 9/11

8:30 am-6:15 pm

3 stops55h 45m

Porto Alegre Salgado Filho

Sat 9/19

2:20 pm-9:35 pm

2 stops33h 15m

$1,059
Quickest round-trip

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Fri 9/11

7:00 am-12:20 am

2 stops15h 20m

Porto Alegre Salgado Filho

Fri 9/18

1:20 am-1:48 pm

1 stop14h 28m

$1,351
Cheapest one-way
Quickest one-way

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Sat 12/19

4:24 pm-5:40 pm

2 stops22h 16m

$545

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 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 is the cheapest airline that flies from Austin Bergstrom to Porto Alegre Salgado Filho?

GOL, LATAM Airlines, and Copa Airlines are the most popular carriers operating from Austin Bergstrom to Porto Alegre Salgado Filho

What airlines fly to Porto Alegre?

LATAM Airlines, American Airlines and GOL 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 40% 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

21h 58m

Direct flights

None
The fastest flight from Austin to Porto Alegre takes 21h 58m
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 21h 58m.

  • 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 $428Free CancellationRating
7.3
1,266 reviews
Search GOL flights
American AirlinesPriceFrom $730Free CancellationRating
7.1
11,846 reviews
Search American Airlines flights
LATAM AirlinesPriceFrom $767Free CancellationRating
7.4
1,968 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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