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Porto Alegre

$255+ 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 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — POA
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap 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 January 27, 2026.

This LATAM Airlines deal was found by Cheapflights users on 1/27. 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.
Thu 5/144:59 pm
AUS
-
POA
2 stops23h 16m
LATAM Airlines
Sun 6/1410:05 am
POA
-
AUS
2 stops33h 30m
LATAM Airlines
Deal found 1/27$829
This United Airlines deal was found by Cheapflights users on 1/25. 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.
Tue 4/79:45 am
AUS
-
POA
2 stops26h 35m
United Airlines
Thu 4/93:25 pm
POA
-
AUS
2 stops33h 18m
United Airlines
Deal found 1/25$833
This Justfly.com deal was found by Cheapflights users on 1/25. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/2712:34 pm
AUS
-
POA
2 stops38h 56m
LATAM Airlines
Fri 1/306:40 am
POA
-
AUS
2 stops17h 55m
LATAM Airlines
Deal found 1/25$850
This Kiwi.com deal was found by Cheapflights users on 1/25. 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.
Tue 1/274:59 pm
AUS
-
POA
2 stops28h 31m
Multiple Airlines
Thu 1/291:45 am
POA
-
AUS
1 stop14h 11m
Multiple Airlines
Deal found 1/25$929
This Delta deal was found by Cheapflights users on 1/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/118:00 am
AUS
-
POA
2 stops19h 30m
Delta
Sat 2/217:45 am
POA
-
AUS
2 stops40h 50m
Delta
Deal found 1/27$964
This FlightHub deal was found by Cheapflights users on 1/27. 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.
Wed 2/118:00 am
AUS
-
POA
2 stops19h 30m
LATAM Airlines
Sun 2/228:10 pm
POA
-
AUS
2 stops28h 25m
LATAM Airlines
Deal found 1/27$1,057
This GOL deal was found by Cheapflights users on 1/26. 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 GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/143:39 pm
AUS
-
POA
2 stops25h 16m
GOL
Sun 6/146:30 pm
POA
-
AUS
2 stops18h 58m
GOL
Deal found 1/26$1,070
This KAYAK deal was found by Cheapflights users on 1/27. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1111:12 am
AUS
-
POA
2 stops20h 43m
GOL
Sun 2/225:55 pm
POA
-
AUS
2 stops18h 38m
GOL
Deal found 1/27$1,178
This FlightHub deal was found by Cheapflights users on 1/27. 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.
Thu 2/121:44 pm
AUS
-
POA
2 stops24h 16m
LATAM Airlines
Sun 2/225:50 pm
POA
-
AUS
2 stops30h 45m
LATAM Airlines
Deal found 1/27$1,182
This SmartFares deal was found by Cheapflights users on 1/27. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/126:26 pm
AUS
-
POA
2 stops42h 14m
GOL
Sat 2/211:40 pm
POA
-
AUS
2 stops22h 53m
GOL
Deal found 1/27$1,217

Find 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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$833
(United Airlines)

One-way from

$255
(United Airlines)

Popular in

December

Cheapest in

October

Average price

$804
Provider with most accurate pricing for Austin Bergstrom-Porto Alegre Salgado Filho flight deals.
Search Deals
Provider most trusted by Cheapflights users for Austin Bergstrom-Porto Alegre Salgado Filho flights.
Search Deals
From Austin Bergstrom to Porto Alegre Salgado Filho
Search Deals
One-way flight from Austin Bergstrom to Porto Alegre Salgado Filho
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($159 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 27, 2026.
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

Tue 4/7

2:10 pm-2:20 pm

2 stops22h 10m

Porto Alegre Salgado Filho

Thu 4/9

3:25 pm-10:43 pm

2 stops33h 18m

$833

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Wed 2/11

8:00 am-6:30 am

2 stops19h 30m

Porto Alegre Salgado Filho

Sat 2/21

7:45 am-9:35 pm

2 stops40h 50m

$964

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Wed 2/11

11:12 am-10:55 am

2 stops20h 43m

Porto Alegre Salgado Filho

Sun 2/22

5:55 pm-9:33 am

2 stops18h 38m

$1,178

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Thu 2/12

1:44 pm-5:00 pm

2 stops24h 16m

Porto Alegre Salgado Filho

Sun 2/22

5:50 pm-9:35 pm

2 stops30h 45m

$1,182

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Thu 2/12

6:26 pm-3:40 pm

2 stops42h 14m

Porto Alegre Salgado Filho

Sat 2/21

1:40 pm-9:33 am

2 stops22h 53m

$1,217

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Thu 2/12

6:00 am-5:10 am

2 stops44h 10m

Porto Alegre Salgado Filho

Sun 2/22

7:40 pm-10:14 pm

2 stops29h 34m

$1,294

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Wed 2/11

2:33 pm-12:25 am

1 stop30h 52m

Porto Alegre Salgado Filho

Fri 2/20

1:30 am-4:04 pm

2 stops17h 34m

$2,077

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Thu 2/12

2:33 pm-12:25 am

1 stop30h 52m

Porto Alegre Salgado Filho

Fri 2/20

1:30 am-4:04 pm

2 stops17h 34m

$2,300

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Sun 3/15

7:00 am-2:25 pm

2 stops29h 25m

$255

AustinPorto Alegre

AUS - POA

AUSPOA

Austin Bergstrom

Sun 3/15

10:03 pm-9:05 am

3 stops33h 02m

$350

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/24

Compare providers for flights from Austin to Porto Alegre

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Austin to Porto Alegre in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Austin-Porto Alegre flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Austin-Porto Alegre flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Austin-Porto Alegre flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Austin-Porto Alegre flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Austin-Porto Alegre flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

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 January 27, 2026.
Read reviews from past customers who have flown LATAM Airlines and GOL 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.
LATAM Airlines
7.5
Good
1,912 reviews

Food

6.7

Boarding

7.6

Overall

7.5

Comfort

7.3

Crew

8.0

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

JC,Jan 2026

FLN - GRU

Plane was late in FLN and missed connection in GRU. No alternative was given to me until 6 hours later and I was delayed by over 12 hours total.
LATAM Airlines
7.5
Good
1,912 reviews
LATAM Airlines
7.5
Good
1,912 reviews

Food

6.7

Boarding

7.6

Overall

7.5

Comfort

7.3

Crew

8.0

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

JC,Jan 2026

FLN - GRU

Plane was late in FLN and missed connection in GRU. No alternative was given to me until 6 hours later and I was delayed by over 12 hours total.
GOL
7.3
Good
1,158 reviews
LATAM Airlines
7.5
Good
1,912 reviews

Food

6.7

Boarding

7.6

Overall

7.5

Comfort

7.3

Crew

8.0

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

JC,Jan 2026

FLN - GRU

Plane was late in FLN and missed connection in GRU. No alternative was given to me until 6 hours later and I was delayed by over 12 hours total.

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?

    United Airlines, Delta, and GOL can get you from Austin to Porto Alegre in just under 19h 30m. Your travel time can differ by up to 2h 40m. 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 are the cheapest airlines flying from Austin to Porto Alegre round-trip?

    Flying on GOL is currently your cheapest option to Porto Alegre, with prices starting at $697. Another option worth looking into is LATAM Airlines, starting at $767 round trip. You may be able to fly from Austin to Porto Alegre for 13% less than the average price by searching for these airlines.

  • 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

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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
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San Antonio to Porto Alegre flights

Top 2 airlines flying from Austin to Porto Alegre

Discover the top 2 airlines 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 January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
GOLCheapest$697Average$1,594FlexibilityNo cancel feeOn-time74%
LATAM AirlinesCheapest$767Average$817FlexibilityNo cancel feeOn-time81%

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