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Porto Alegre

$244+ Cheap flights from Austin (AUS) to Porto Alegre (POA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — POA
out 11 — out 181
sáb 10/11
sáb 10/18
1 adult, Economy
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Cheap flight deals from Austin to Porto Alegre

Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) to Porto Alegre (POA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated setembro 11, 2025.

Round-trip from

$525
(Kiwi.com)

One-way from

$244
(United Airlines)

Popular in

December

Cheapest in

August

Average price

$712
From Austin Bergstrom to Porto Alegre Salgado Filho
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One-way flight from Austin Bergstrom to Porto Alegre Salgado Filho
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Highest demand for flights based on searches. 23% potential increase in price ($252 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($50 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Austin to Porto Alegre

Cheapest flights from Austin to Porto Alegre
Explore the most affordable flight options available from Austin to Porto Alegre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on setembro 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 10/93:29 pmAUS - POA
1 stop30h 51mCopa Airlines
qua 10/151:25 amPOA - AUS
1 stop14h 29mCopa Airlines
Deal found 9/9$525
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 10/97:05 amAUS - POA
2 stops31h 05mUnited Airlines
qui 10/163:25 pmPOA - AUS
2 stops33h 05mUnited Airlines
Deal found 9/9$601
This FlightHub deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 12/113:21 pmAUS - POA
2 stops36h 09mLATAM Airlines
qua 12/174:40 amPOA - AUS
2 stops37h 15mLATAM Airlines
Deal found 9/11$939
This Ovago deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 12/274:24 pmAUS - POA
2 stops21h 06mGOL
sáb 1/171:40 pmPOA - AUS
2 stops21h 38mGOL
Deal found 9/11$1,095
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 12/1110:15 amAUS - POA
3 stops25h 20mUnited Airlines
qui 12/183:30 pmPOA - AUS
2 stops20h 00mUnited Airlines
Deal found 9/11$1,972
This LATAM Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 10/94:15 pmAUS - POA
3 stops25h 35mLATAM Airlines
qui 10/167:20 amPOA - AUS
2 stops19h 02mLATAM Airlines
Deal found 9/9$2,076
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 12/118:48 pmAUS - POA
2 stops35h 47mMultiple Airlines
qua 12/171:35 amPOA - AUS
1 stop14h 19mMultiple Airlines
Deal found 9/11$2,274
This Copa Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 12/272:29 pmAUS - POA
2 stops25h 11mCopa Airlines
sex 1/161:30 amPOA - AUS
1 stop14h 26mCopa Airlines
Deal found 9/11$5,443

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated setembro 11, 2025.
Use the filters below to find and compare flights from Austin to Porto Alegre that are best for you.

Fly from

Austin

Fly to

Porto Alegre

Route

Depart

Return

Price

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

qui 10/9

3:29 pm-12:20 am

1 stop30h 51m

Porto Alegre Salgado Filho

qua 10/15

1:25 am-1:54 pm

1 stop14h 29m

$525

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

qui 10/9

7:05 am-4:10 pm

2 stops31h 05m

Porto Alegre Salgado Filho

qui 10/16

3:25 pm-10:30 pm

2 stops33h 05m

$601

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

sex 1/9

7:02 pm-3:40 pm

2 stops17h 38m

Porto Alegre Salgado Filho

qua 4/22

6:35 pm-4:31 pm

2 stops23h 56m

$854

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

qui 12/11

3:21 pm-6:30 am

2 stops36h 09m

Porto Alegre Salgado Filho

qua 12/17

4:40 am-2:55 pm

2 stops37h 15m

$939

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

sáb 12/27

4:24 pm-4:30 pm

2 stops21h 06m

Porto Alegre Salgado Filho

sáb 1/17

1:40 pm-8:18 am

2 stops21h 38m

$1,095

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

qui 12/11

10:15 am-2:35 pm

3 stops25h 20m

Porto Alegre Salgado Filho

qui 12/18

3:30 pm-8:30 am

2 stops20h 00m

$1,972

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

qui 10/9

4:15 pm-7:50 pm

3 stops25h 35m

Porto Alegre Salgado Filho

qui 10/16

7:20 am-12:22 am

2 stops19h 02m

$2,076

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

qui 12/11

8:48 pm-11:35 am

2 stops35h 47m

Porto Alegre Salgado Filho

qua 12/17

1:35 am-12:54 pm

1 stop14h 19m

$2,274

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

qui 9/18

7:00 am-2:35 pm

2 stops29h 35m

$244

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

qui 9/18

10:45 am-7:15 pm

3 stops30h 30m

$805

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Best time to book a flight from Austin to Porto Alegre

Have a flexible travel schedule? Discover the best time to fly to Porto Alegre from Austin with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Austin to Porto Alegre

What is the cheapest time of day to fly from AUS to POA?

Find hourly flight availability from Austin to Porto Alegre. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated setembro 11, 2025.

It’s typically best to fly out from Austin to Porto Alegre in the morning. Doing so could potentially save you 28% on the flight price compared to flying in the afternoon, which is usually more expensive.

Reviews of airlines servicing Porto Alegre

Get insights into the airlines that provide service to Porto Alegre. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto Alegre. Reviews last updated setembro 11, 2025.
Read reviews from past customers who have flown American Airlines from Austin to Porto Alegre. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Food

6.4

Crew

8.0

Overall

7.2

Reviews

1 / 20
6.0
Good

sheila,Mar 2025

DFW - MSP

We were delayed for 3 hours with no real reason or offer for compensation
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Food

6.4

Crew

8.0

Overall

7.2

Reviews

1 / 20
6.0
Good

sheila,Mar 2025

DFW - MSP

We were delayed for 3 hours with no real reason or offer for compensation

Related info for your journey

Find useful and relevant information for your journey from Austin to Porto Alegre. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Austin to Porto Alegre?

    Copa Airlines, United Airlines, and American Airlines can get you from Austin to Porto Alegre in just under 17h 38m. Your travel time can differ by up to 13h 27m. The distance between Austin and Porto Alegre is about 5158 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Austin to Porto Alegre round-trip?

    Flying on American Airlines is currently your cheapest option to Porto Alegre, with prices starting at $709. You may be able to fly from Austin to Porto Alegre for 12% less than the average price by searching for this airline.

  • Can I find deals for flights from Austin to Porto Alegre that include hotel bookings?

    Yes. In addition to deals on Austin to Porto Alegre flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Austin to Porto Alegre?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Austin to Porto Alegre.

  • Can I find deals for business class flights from Austin to Porto Alegre?

    Yes. Cheapflights offers flight deals from Austin to Porto Alegre by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Austin to Porto Alegre

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Porto Alegre flights
Hobby to Porto Alegre flights
George Bush Intcntl to Porto Alegre flights
San Antonio to Porto Alegre flights

Top airline flying from Austin to Porto Alegre

Discover the top airline that operate flights from Austin to Porto Alegre. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated setembro 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$709Average$768FlexibilityNo cancel feeOn-time71%

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