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Cheap flights from Austin to Porto Alegre from $517

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 10/13. 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

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Find the cheapest flights from Austin to Porto Alegre

Cheap round-trip flights

United Airlines Logo
7:05 am - 2:35 pmAUS-POA
29h 30m2 stops
United Airlines Logo
2:05 pm - 8:26 pmPOA-AUS
32h 21m2 stops
$517United Airlines
Find Deal
Mon, Oct 13 - Thu, Oct 16
United Airlines Logo
5:15 am - 2:35 pmAUS-POA
31h 20m2 stops
United Airlines Logo
3:25 pm - 1:08 pmPOA-AUS
23h 43m2 stops
$523United Airlines
Find Deal
Mon, Oct 13 - Thu, Oct 16
United Airlines Logo
7:05 am - 4:10 pmAUS-POA
31h 05m2 stops
United Airlines Logo
3:25 pm - 8:26 pmPOA-AUS
31h 01m3 stops
$596United Airlines
Find Deal
Mon, Oct 13 - Thu, Oct 16
Logo
3:29 pm - 12:20 amAUS-POA
30h 51m1 stop
Logo
5:15 am - 8:51 amPOA-AUS
29h 36m2 stops
$705
Find Deal
Mon, Oct 13 - Thu, Oct 16
Logo
9:56 am - 5:50 pmAUS-POA
29h 54m3 stops
Logo
5:15 am - 8:51 amPOA-AUS
29h 36m2 stops
$764
Find Deal
Mon, Oct 13 - Thu, Oct 16
Logo
9:56 am - 11:55 pmAUS-POA
35h 59m3 stops
Logo
5:15 am - 10:25 amPOA-AUS
31h 10m3 stops
$781
Find Deal
Mon, Oct 13 - Thu, Oct 16
GOL Logo
6:45 pm - 4:30 pmAUS-POA
42h 45m2 stops
GOL Logo
7:20 pm - 2:26 pmPOA-AUS
22h 06m2 stops
$1,080GOL
Find Deal
Sat, Dec 27 - Sat, Jan 17
GOL Logo
5:16 am - 10:30 amAUS-POA
26h 14m2 stops
GOL Logo
7:20 pm - 12:21 amPOA-AUS
32h 01m2 stops
$1,186GOL
Find Deal
Sat, Dec 27 - Sat, Jan 17
Copa Airlines Logo
3:29 pm - 12:20 amAUS-POA
30h 51m1 stop
Copa Airlines Logo
1:25 am - 1:54 pmPOA-AUS
14h 29m1 stop
$1,732Copa Airlines
Find Deal
Mon, Oct 13 - Wed, Oct 15
Copa Airlines Logo
3:29 pm - 10:45 amAUS-POA
17h 16m2 stops
Copa Airlines Logo
1:25 am - 1:54 pmPOA-AUS
14h 29m1 stop
$4,682Copa Airlines
Find Deal
Mon, Oct 13 - Wed, Oct 15

United Airlines flights from Austin to Porto Alegre

Our best United Airlines deals on Austin to Porto Alegre flight tickets
United Airlines
Oct 13
AUS7:05 amAustin Bergstrom
29h 30m
2 stops
POA2:35 pmPorto Alegre Salgado Filho
Oct 16
POA2:05 pmPorto Alegre Salgado Filho
32h 21m
2 stops
AUS8:26 pmAustin Bergstrom
$517
Find similar
United Airlines
Oct 13
AUS5:15 amAustin Bergstrom
31h 20m
2 stops
POA2:35 pmPorto Alegre Salgado Filho
Oct 16
POA3:25 pmPorto Alegre Salgado Filho
23h 43m
2 stops
AUS1:08 pmAustin Bergstrom
$523
Find similar
United Airlines
Oct 13
AUS7:05 amAustin Bergstrom
31h 05m
2 stops
POA4:10 pmPorto Alegre Salgado Filho
Oct 16
POA3:25 pmPorto Alegre Salgado Filho
31h 01m
3 stops
AUS8:26 pmAustin Bergstrom
$596
Find similar

GOL flights from Austin to Porto Alegre

Our best GOL deals on Austin to Porto Alegre flight tickets
GOL
Sep 22
AUS4:54 pmAustin Bergstrom
21h 21m
2 stops
POA4:15 pmPorto Alegre Salgado Filho
Sep 27
POA6:05 amPorto Alegre Salgado Filho
41h 38m
2 stops
AUS9:43 pmAustin Bergstrom
$652
Find similar
GOL
Dec 27
AUS6:45 pmAustin Bergstrom
42h 45m
2 stops
POA4:30 pmPorto Alegre Salgado Filho
Jan 17
POA7:20 pmPorto Alegre Salgado Filho
22h 06m
2 stops
AUS2:26 pmAustin Bergstrom
$1,080
Find similar
GOL
Dec 27
AUS5:16 amAustin Bergstrom
26h 14m
2 stops
POA10:30 amPorto Alegre Salgado Filho
Jan 17
POA7:20 pmPorto Alegre Salgado Filho
32h 01m
2 stops
AUS12:21 amAustin Bergstrom
$1,186
Find similar

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 September 15, 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

Mon 10/13

7:05 am-2:35 pm

2 stops29h 30m

Porto Alegre Salgado Filho

Thu 10/16

2:05 pm-8:26 pm

2 stops32h 21m

$517

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Mon 10/13

5:15 am-2:35 pm

2 stops31h 20m

Porto Alegre Salgado Filho

Thu 10/16

3:25 pm-1:08 pm

2 stops23h 43m

$523

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Mon 10/13

7:05 am-4:10 pm

2 stops31h 05m

Porto Alegre Salgado Filho

Thu 10/16

3:25 pm-8:26 pm

3 stops31h 01m

$596

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Mon 10/13

3:29 pm-12:20 am

1 stop30h 51m

Porto Alegre Salgado Filho

Thu 10/16

5:15 am-8:51 am

2 stops29h 36m

$705

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Mon 10/13

9:56 am-5:50 pm

3 stops29h 54m

Porto Alegre Salgado Filho

Thu 10/16

5:15 am-8:51 am

2 stops29h 36m

$764

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Mon 10/13

9:56 am-11:55 pm

3 stops35h 59m

Porto Alegre Salgado Filho

Thu 10/16

5:15 am-10:25 am

3 stops31h 10m

$781

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Sat 12/27

6:45 pm-4:30 pm

2 stops42h 45m

Porto Alegre Salgado Filho

Sat 1/17

7:20 pm-2:26 pm

2 stops22h 06m

$1,080

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Sat 12/27

5:16 am-10:30 am

2 stops26h 14m

Porto Alegre Salgado Filho

Sat 1/17

7:20 pm-12:21 am

2 stops32h 01m

$1,186

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Mon 10/13

3:29 pm-12:20 am

1 stop30h 51m

Porto Alegre Salgado Filho

Wed 10/15

1:25 am-1:54 pm

1 stop14h 29m

$1,732

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Mon 10/13

3:29 pm-10:45 am

2 stops17h 16m

Porto Alegre Salgado Filho

Wed 10/15

1:25 am-1:54 pm

1 stop14h 29m

$4,682

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 is the typical price of a round-trip flight between Austin and Porto Alegre?

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

Direct flights

None
There are no direct flights from Austin to Porto Alegre. There are no popular flight routes from Austin to Porto Alegre.
Search flight deals

  • 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 16m.

  • 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
1,105 reviews
Search GOL flights
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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