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$537+ Cheap flights from Porto Alegre (POA) to Austin (AUS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
POA — AUS
ago. 25 — sep. 11
lun. 8/25
lun. 9/1
1 adult, Economy
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Cheap flight deals from Porto Alegre to Austin

Discover tips and strategies to find the most affordable flight options for your journey from Porto Alegre (POA) to Austin (AUS). 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 agosto 20, 2025.

Round-trip from

$537
(American Airlines)

Popular in

November

Cheapest in

October

Average price

$651
From Porto Alegre Salgado Filho to Austin Bergstrom
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Highest demand for flights based on searches. 2% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Porto Alegre to Austin

Cheapest flights from Porto Alegre to Austin
Explore the most affordable flight options available from Porto Alegre to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 20, 2025.

This American Airlines deal was found by Cheapflights users on 8/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/91:55 pmPOA - AUS
2 stops22h 34mAmerican Airlines
mar. 9/1611:26 amAUS - POA
2 stops20h 59mAmerican Airlines
Deal found 8/19$537
This United Airlines deal was found by Cheapflights users on 8/18. 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.
mar. 9/95:10 pmPOA - AUS
2 stops17h 41mUnited Airlines
mar. 9/1610:00 amAUS - POA
2 stops28h 10mUnited Airlines
Deal found 8/18$547
This Kiwi.com deal was found by Cheapflights users on 8/17. 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.
mié. 10/11:25 amPOA - AUS
1 stop14h 29mCopa Airlines
jue. 10/93:29 pmAUS - POA
1 stop30h 51mCopa Airlines
Deal found 8/17$554
This United Airlines deal was found by Cheapflights users on 8/17. 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.
jue. 10/22:05 pmPOA - AUS
3 stops27h 15mUnited Airlines
jue. 10/912:17 pmAUS - POA
2 stops24h 18mUnited Airlines
Deal found 8/17$613
This United Airlines deal was found by Cheapflights users on 8/20. 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.
mar. 9/161:55 pmPOA - AUS
2 stops20h 56mUnited Airlines
jue. 9/252:15 pmAUS - POA
2 stops23h 55mUnited Airlines
Deal found 8/20$614
This American Airlines deal was found by Cheapflights users on 8/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/28:20 pmPOA - AUS
2 stops17h 23mAmerican Airlines
dom. 11/97:00 amAUS - POA
2 stops23h 55mAmerican Airlines
Deal found 8/18$624
This American Airlines deal was found by Cheapflights users on 8/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/197:30 pmPOA - AUS
2 stops16h 39mAmerican Airlines
mar. 8/2610:59 amAUS - POA
2 stops21h 26mAmerican Airlines
Deal found 8/18$654
This 123 Milhas deal was found by Cheapflights users on 8/20. 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 123 Milhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/311:35 amPOA - AUS
1 stop14h 19mCopa Airlines
jue. 11/202:29 pmAUS - POA
1 stop31h 01mCopa Airlines
Deal found 8/20$710
This Mytrip deal was found by Cheapflights users on 8/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/29:25 amPOA - AUS
3 stops39h 37mMultiple Airlines
jue. 10/96:00 amAUS - POA
3 stops26h 45mMultiple Airlines
Deal found 8/17$808

Cheapflights Fare Finder

 
Customize your flight search to find flights from Porto Alegre to Austin 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 agosto 20, 2025.
Use the filters below to find and compare flights from Porto Alegre to Austin that are best for you.

Fly from

Porto Alegre

Fly to

Austin

Route

Depart

Return

Price

Porto AlegreAustin

POA - AUS

POAAUS

Porto Alegre Salgado Filho

mar. 9/9

1:55 pm-10:29 am

2 stops22h 34m

Austin Bergstrom

mar. 9/16

11:26 am-10:25 am

2 stops20h 59m

$537

Porto AlegreAustin

POA - AUS

POAAUS

Porto Alegre Salgado Filho

mar. 9/9

5:10 pm-8:51 am

2 stops17h 41m

Austin Bergstrom

mar. 9/16

10:00 am-4:10 pm

2 stops28h 10m

$547

Porto AlegreAustin

POA - AUS

POAAUS

Porto Alegre Salgado Filho

mié. 10/1

1:25 am-1:54 pm

1 stop14h 29m

Austin Bergstrom

jue. 10/9

3:29 pm-12:20 am

1 stop30h 51m

$554

Porto AlegreAustin

POA - AUS

POAAUS

Porto Alegre Salgado Filho

jue. 10/2

2:05 pm-3:20 pm

3 stops27h 15m

Austin Bergstrom

jue. 10/9

12:17 pm-2:35 pm

2 stops24h 18m

$613

Porto AlegreAustin

POA - AUS

POAAUS

Porto Alegre Salgado Filho

mar. 9/16

1:55 pm-10:58 am

2 stops23h 03m

Austin Bergstrom

jue. 9/25

12:17 pm-10:55 am

2 stops20h 38m

$613

Porto AlegreAustin

POA - AUS

POAAUS

Porto Alegre Salgado Filho

dom. 11/2

8:20 pm-10:43 am

2 stops17h 23m

Austin Bergstrom

dom. 11/9

7:00 am-9:55 am

2 stops23h 55m

$624

Porto AlegreAustin

POA - AUS

POAAUS

Porto Alegre Salgado Filho

mié. 12/24

5:05 pm-11:53 am

2 stops21h 48m

$568

Porto AlegreAustin

POA - AUS

POAAUS

Porto Alegre Salgado Filho

mié. 12/24

2:05 pm-9:43 am

2 stops22h 38m

$577

Porto AlegreAustin

POA - AUS

POAAUS

Porto Alegre Salgado Filho

mar. 12/23

1:35 am-12:54 pm

1 stop14h 19m

$786

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

Best time to book a flight from Porto Alegre to Austin

Have a flexible travel schedule? Discover the best time to fly to Austin from Porto Alegre 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 Porto Alegre to Austin

What is the cheapest month to book a flight from Porto Alegre to Austin?

Currently, January is the cheapest month in which you can book a flight from Porto Alegre to Austin (average of $286). Flying from Porto Alegre to Austin in March is currently the most expensive (average of $362). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Find hourly flight availability from Porto Alegre to Austin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated agosto 20, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Porto Alegre to Austin as you normally would.

Related info for your journey

Find useful and relevant information for your journey from Porto Alegre to Austin. 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 Porto Alegre to Austin?

    There are many flights that can get you from Porto Alegre to Austin in 14h 29m. Fly via American Airlines, United Airlines, or Copa Airlines to get the fastest option. The distance from Porto Alegre to Austin is about 5158 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Porto Alegre to Austin one-way?

    The cheapest airlines for a one-way flight from Porto Alegre to Austin are American Airlines ($568), LATAM Airlines ($577), and Copa Airlines ($786).

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Porto Alegre to Austin?

    Currently, January is the cheapest month in which you can book a flight from Porto Alegre to Austin (average of $286). Flying from Porto Alegre to Austin in March is currently the most expensive (average of $362). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Austin?

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