Cheap flights from Austin to Porto Alegre from $244

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 9/22. 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 Austin to Porto Alegre

Cheap round-trip flights

American Airlines Logo
7:00 am - 10:25 amAUS-POA
25h 25m2 stops
American Airlines Logo
1:55 pm - 11:38 amPOA-AUS
23h 43m2 stops
$513American Airlines
Find Deal
Tue, Aug 12 - Tue, Sep 9
United Airlines Logo
4:55 pm - 4:10 pmAUS-POA
21h 15m2 stops
United Airlines Logo
5:10 pm - 3:20 pmPOA-AUS
24h 10m3 stops
$515United Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21
GOL Logo
4:09 pm - 4:15 pmAUS-POA
22h 06m2 stops
GOL Logo
8:00 pm - 10:29 amPOA-AUS
40h 29m2 stops
$642GOL
Find Deal
Wed, Sep 17 - Sun, Sep 21
 Logo
3:29 pm - 12:20 amAUS-POA
30h 51m1 stop
 Logo
8:25 am - 10:00 amPOA-AUS
27h 35m2 stops
Wed, Sep 17 - Sun, Sep 21
United Airlines Logo
10:20 am - 2:35 pmAUS-POA
26h 15m2 stops
United Airlines Logo
3:10 pm - 3:23 pmPOA-AUS
26h 13m3 stops
$720United Airlines
Find Deal
Wed, Sep 17 - Sun, Sep 21
United Airlines Logo
5:16 pm - 2:35 pmAUS-POA
18h 19m2 stops
United Airlines Logo
5:10 pm - 10:34 pmPOA-AUS
32h 24m2 stops
$725United Airlines
Find Deal
Mon, Jan 12 - Tue, Jan 27
 Logo
5:45 am - 8:45 amAUS-POA
25h 00m3 stops
 Logo
5:15 am - 12:20 pmPOA-AUS
33h 05m3 stops
Wed, Sep 17 - Sun, Sep 21
 Logo
3:29 pm - 12:20 amAUS-POA
30h 51m1 stop
 Logo
1:27 am - 5:25 pmPOA-AUS
17h 58m2 stops
Wed, Sep 17 - Sat, Sep 20
GOL Logo
4:45 pm - 4:30 pmAUS-POA
20h 45m2 stops
GOL Logo
4:30 am - 10:47 amPOA-AUS
33h 17m2 stops
$921GOL
Find Deal
Mon, Jan 12 - Mon, Jan 26

United Airlines flights from Austin to Porto Alegre

Our best United Airlines deals on Austin to Porto Alegre flight tickets
United Airlines
Oct 14
AUS4:55 pmAustin Bergstrom
21h 15m
2 stops
POA4:10 pmPorto Alegre Salgado Filho
Oct 21
POA5:10 pmPorto Alegre Salgado Filho
24h 10m
3 stops
AUS3:20 pmAustin Bergstrom
United Airlines
Sep 17
AUS10:20 amAustin Bergstrom
26h 15m
2 stops
POA2:35 pmPorto Alegre Salgado Filho
Sep 21
POA3:10 pmPorto Alegre Salgado Filho
26h 13m
3 stops
AUS3:23 pmAustin Bergstrom
United Airlines
Jan 12
AUS5:16 pmAustin Bergstrom
18h 19m
2 stops
POA2:35 pmPorto Alegre Salgado Filho
Jan 27
POA5:10 pmPorto Alegre Salgado Filho
32h 24m
2 stops
AUS10:34 pmAustin Bergstrom

GOL flights from Austin to Porto Alegre

Our best GOL deals on Austin to Porto Alegre flight tickets
GOL
Sep 17
AUS4:09 pmAustin Bergstrom
22h 06m
2 stops
POA4:15 pmPorto Alegre Salgado Filho
Sep 21
POA8:00 pmPorto Alegre Salgado Filho
40h 29m
2 stops
AUS10:29 amAustin Bergstrom
GOL
Jan 12
AUS4:45 pmAustin Bergstrom
20h 45m
2 stops
POA4:30 pmPorto Alegre Salgado Filho
Jan 26
POA4:30 amPorto Alegre Salgado Filho
33h 17m
2 stops
AUS10:47 amAustin Bergstrom
GOL
Aug 2
AUS6:13 pmAustin Bergstrom
44h 02m
2 stops
POA4:15 pmPorto Alegre Salgado Filho
Sep 13
POA11:20 amPorto Alegre Salgado Filho
25h 11m
2 stops
AUS10:31 amAustin Bergstrom

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 July 29, 2025.
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

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Tue 8/12

7:00 am-10:25 am

2 stops25h 25m

Porto Alegre Salgado Filho

Tue 9/9

1:55 pm-11:38 am

2 stops23h 43m

$513

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Tue 10/14

4:55 pm-4:10 pm

2 stops21h 15m

Porto Alegre Salgado Filho

Tue 10/21

5:10 pm-3:20 pm

3 stops24h 10m

$515

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Wed 9/17

4:09 pm-4:15 pm

2 stops22h 06m

Porto Alegre Salgado Filho

Sun 9/21

8:00 pm-10:29 am

2 stops40h 29m

$642

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Wed 9/17

3:29 pm-12:20 am

1 stop30h 51m

Porto Alegre Salgado Filho

Sun 9/21

8:25 am-10:00 am

2 stops27h 35m

$694

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Wed 9/17

10:20 am-2:35 pm

2 stops26h 15m

Porto Alegre Salgado Filho

Sun 9/21

3:10 pm-3:23 pm

3 stops26h 13m

$720

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Mon 1/12

5:16 pm-2:35 pm

2 stops18h 19m

Porto Alegre Salgado Filho

Tue 1/27

5:10 pm-10:34 pm

2 stops32h 24m

$725

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Wed 9/17

5:45 am-8:45 am

3 stops25h 00m

Porto Alegre Salgado Filho

Sun 9/21

5:15 am-12:20 pm

3 stops33h 05m

$774

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Wed 9/17

3:29 pm-12:20 am

1 stop30h 51m

Porto Alegre Salgado Filho

Sat 9/20

1:27 am-5:25 pm

2 stops17h 58m

$791

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Mon 1/12

4:45 pm-4:30 pm

2 stops20h 45m

Porto Alegre Salgado Filho

Mon 1/26

4:30 am-10:47 am

2 stops33h 17m

$921

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Mon 9/22

5:25 pm-4:10 pm

2 stops20h 45m

$244

Flights are sorted by cheapest round-trip flights 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 day to depart on your flight to Porto Alegre?

Our data shows that Saturday is the least expensive day to fly to Porto Alegre. Tickets to fly out on this day can be as low as $612. On the other hand, Tuesday is the most expensive day to depart from Austin because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,112.

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 in the morning. Flights from Austin to Porto Alegre during this time can be as low as $802. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,110 on average. Flights to Porto Alegre from Austin in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

Best Price Found

$244

Fastest flight time

18h 19m

Direct flights

None

Airports in Porto Alegre

1 airport
The best one-way flight to Porto Alegre from Austin in the past 72 hours is $244. The best round-trip flight deal from Austin to Porto Alegre found on momondo in the last 72 hours is $513.
The fastest flight from Austin to Porto Alegre takes 18h 19m
There are no direct flights from Austin to Porto Alegre. Popular non-direct route for this connection is Austin Bergstrom Airport - Porto Alegre Salgado Filho Airport.
There is 1 airport near Porto Alegre: Porto Alegre Salgado Filho (POA)

  • 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 18h 19m.

  • 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
American AirlinesPriceFrom $709Free CancellationRating
7.2
10,000 reviews
Search American 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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