AUS - POA

$475 Find Cheap Flights from Austin to Porto Alegre - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Austin to Porto Alegre departing on 12/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$932
American Airlines
Thu 9/3Thu 9/10
AUS - POA • 2 stops
Cheapest one-way
$475
GOL
Sat 12/19
AUS - POA • 2 stops
Top airlines
Cheapest • from $932 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Austin and Porto Alegre. You'll need at least 1 connection.
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Flight Deals

Cheap Flights from Austin to Porto Alegre (AUS-POA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Austin to Porto Alegre that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Austin to Porto Alegre

Thu, Sep 3 - Thu, Sep 10
American Airlines Logo
5:41 pm - 3:45 pm
AUS
-
POA
20h 04m
2 stops
American Airlines Logo
6:45 pm - 10:44 am
POA
-
AUS
17h 59m
2 stops
$932American Airlines
Thu, Sep 3 - Wed, Sep 9
Copa Airlines Logo
3:31 pm - 12:20 am
AUS
-
POA
30h 49m
1 stop
Copa Airlines Logo
1:20 am - 1:48 pm
POA
-
AUS
14h 28m
1 stop
$940Copa Airlines
Sun, Aug 16 - Sat, Aug 22
LATAM Airlines Logo
8:25 am - 6:15 pm
AUS
-
POA
31h 50m
2 stops
LATAM Airlines Logo
7:05 pm - 9:23 pm
POA
-
AUS
28h 18m
2 stops
$963LATAM Airlines
Thu, Sep 3 - Thu, Sep 10
Multiple Airlines Logo
3:31 pm - 12:20 am
AUS
-
POA
30h 49m
1 stop
Multiple Airlines Logo
5:50 pm - 11:03 am
POA
-
AUS
19h 13m
2 stops
$1,020Multiple Airlines
Sun, Aug 16 - Fri, Aug 21
Copa Airlines Logo
7:00 am - 12:15 am
AUS
-
POA
15h 15m
2 stops
Copa Airlines Logo
1:15 am - 1:48 pm
POA
-
AUS
14h 33m
1 stop
$1,387Copa Airlines
Thu, Sep 3 - Thu, Sep 10
Multiple Airlines Logo
3:31 pm - 2:05 pm
AUS
-
POA
20h 34m
2 stops
Multiple Airlines Logo
5:30 am - 10:48 am
POA
-
AUS
31h 18m
3 stops
$1,394Multiple Airlines
Booking Insights

KAYAK's insights & trends for Austin to Porto Alegre flights

Get data-powered insights and trends into flights from Austin to Porto Alegre to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Austin to Porto Alegre?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Austin to Porto Alegre were found on American Airlines ($932) and Copa Airlines ($940).

Good to know

Cheapest flight

$475
Flight from Austin to Porto Alegre

When to book flights from Austin to Porto Alegre

Are your dates flexible? Find out the best times to travel from Austin to Porto Alegre based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Austin to Porto Alegre

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

    In the last 5 days, the lowest price for a flight from Austin to Porto Alegre was $475 for a one-way ticket and $932 for a round-trip.

  • Do I need a passport to fly between Austin and Porto Alegre?

    A passport is required to fly from Austin to Porto Alegre.

  • Which aircraft models fly most regularly from Austin to Porto Alegre?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Austin to Porto Alegre?

    oneworld is the only airline alliance operating flights between Austin and Porto Alegre.

  • Which is the best airline for flights from Austin to Porto Alegre, LATAM Airlines or GOL?

    The two airlines most popular with KAYAK users for flights from Austin to Porto Alegre are LATAM Airlines and GOL. With an average price for the route of $817 and an overall rating of 7.4, LATAM Airlines is the most popular choice. GOL is also a great choice for the route, with an average price of $1,594 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from Austin to Porto Alegre?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Austin to Porto Alegre.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Austin to Porto Alegre?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto Alegre from Austin is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Austin to Porto Alegre?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto Alegre with an airline and back to Austin with another airline. Booking your flights between Austin and POA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Austin to Porto Alegre?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto Alegre from Austin up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Austin to Porto Alegre

 
See real verified KAYAK customer reviews for airlines flying from Austin to Porto Alegre. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Austin to Porto Alegre? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
LATAM AirlinesOverall score based on 1962 reviews
6.7Food
7.0Entertainment
7.3Comfort
7.5Boarding
8.0Crew
Airline reviews

Apart of Sky miles delta. And they go everywhere in Brazil

10.0 ExcellentAnonymous, Feb 2026
MCO - GRU
Read more LATAM Airlines reviews

Apart of Sky miles delta. And they go everywhere in Brazil

There was a mechanical issue with the plane that they had to work on before we could take off. That's fine, by all means, PLEASE make sure the mechanics are functioning properly. What was a problem was the fact that we sat on the tarmac for 4.5 hours without moving, without letting us off the plane, and without climate control and air running through the plane. There was no explanation as to what was going on; they just kept promising that it would be "15 minutes, then we are on our way." At one point, they even switched the entire crew out and told everyone we just needed to wait for new employees to show up. Then, as the 4 hours were not moving, an hour before the full refund, they made a big show about "the flight starting and the doors are locked, so you have to sit down." We didn't move for another 40 minutes; they were just trying to skirt around legalities that entitled us to restitution. When the flight finally was underway, the plane was gigantic but cramped in design, my entertainment screen kept freezing and glitching, and subtitles didn't work, and the crew was passive-aggressive. Terrible flight.

The flight was late. Please do not delay next time.

I couldn't travel, now I can't get a refund and to change the date I have to pay an absurd fine.

My biggest complaint is the comfort. I am not tall and there was no legroom. It was very uncomfortable. During my transfer in Sao Paola, the flight was slightly delayed so boarding was confusing because there were no instructions in English.

I never got this flight. You sent me to Chile!!! And from Chile I got the other flight to São Paulo... I've arrived 7h latter than I was supposed to arrive because of Delta delays.

The boarding and new bag drop-off process was confusing and causing massive delays.

Very slow boarding, 1 hour late - uncomfortable chairs and crew barely speaking english even at the airport!

4 hours delay, awful food and missed all my connections because of the delay to be rebooks for a flight 10 hrs later back home and never actually make it to my final destination

the flight from Boston to Curitiba was on time actually 30 minutes earlier. latam was not able to unload the luggage for custom checkup in Sao Paulo ii took two and half hours . i missed the flight to Curitiba spend the night in hotel and then flying in the morning to Curitiba

The pilots landing and taking off was very bad on the first flight, the second one taking off was great but landing was also rough

The check in and on the ground experience is very poor. Their online check and trip management is the worst I have ever seen and they have long lines to check in at the airport, technology is glitchy/unusable and have exorbitant baggage fees. The flight itself is fine, although the food is about what you would expect and their was no functioning entertainment for an international flight.

My experience with this flight was extremely negative and resulted in serious financial and personal consequences. The flight departed with a significant delay, which caused me to miss my international connecting flight. As a direct result of this delay — which was entirely beyond my control — I was unable to reach my final destination on time, causing me to lose a previously scheduled hair transplant surgery that had been arranged months in advance. This was not a minor inconvenience. The surgery involved: • A reserved operating room • Medical and technical staff scheduled specifically for that date • Surgical instruments prepared in advance • Strict scheduling that does not allow for easy rescheduling Due to the airline’s delay and poor handling of the situation: • I lost already paid international flight tickets • I was forced to purchase new tickets, incurring duplicate expenses • I spent over six additional hours in airports, under stressful conditions • I incurred unexpected costs for meals and transportation • I lost a medical opportunity that cannot be easily recovered, along with the emotional distress associated with it Although the airline covered one night of hotel accommodation, this did not address the real impact of the delay, nor the significant damages caused by missing a critical medical procedure. The lack of punctuality, planning, and effective solutions reflects a serious lack of responsibility toward passengers, especially when international connections and time-sensitive medical commitments are involved. I do not recommend this airline for travelers with important schedules, medical appointments, or critical connections. In my case, the delay did not merely cause inconvenience — it resulted in the loss of a surgery and substantial financial damage.

I was not able to get on the flight due to delays out of Philadelphia. I arrived in MIA at 10:30pm and there was no one at the GOL Desk. Is there any flight credit available for this flight?

the boarding staff were incredibly officious. our carry-on case was borderline within dimensions but staff were not prepared to show ANY flexibility even though many others with larger carry-on luggage were allowed to board. we were understandably furious but the staff were incredibly disrespectful. we called the supervisor who eventually agreed to look on board the plane to see if there was room for our case (one case between 2 of us) and reluctantly agreed to allow us on. The staff on board were excellent though and realized we had been treated badly and were very helpful both in finding a place for our case, some distance from our seats, and helping us to retrieve it when we landed. We are regular travelers on Gol and have Diamante status and had chosen the better Conforto + seats, so we expected better treatment from the ground staff. Also the cabins are of a size that will only fit 3 cases of normal size with a large gap of about 30cm of wasted space. If our case were deemed to be oversize, which I dispute, the extra 1cm would not have made the slightest difference.

It was really bad. Inexperienced and rude people during check-in in Miami, a small and uncomfortable airplane, and problems with the airline caused me to lose my connection flight in Brasilia. Terrible experience!

Obviously it would be better if we had screens available.

The plane was fine and the crew was very nice. Even though we bought our tickets eight months in advance and had seats reserved, they changed our seats. Instead of being in seats 7E and 7F, we were separated and put in two middle seats away from each other. When checking in, the attendant put us in an exit row together, but 10 rows back from where we had reserved. But you have to be younger than 60 to be in an exit row. So when everyone else boarded we were moved to last row 33, right next to bathrooms.

I missed it because of the delay in the other flights. Attendants in the airport sent me from one side to the other many times due to poor information.

Too much delay in the first two flights, so I lost the connection to the final destination.

It was good overall but when I book my flight and seat through Kayak, AA will at times change those seats during check-in time which I don’t understand why. I always book aisle seats and had to sit at window for my flight to Austin this trip.

Nothing, I wont be flying American Airlines again and will not be recommending anyone to fly American Airlines. It was the worst experience flying I've ever had.

Short hop but nice crew, efficient processes and all very timely

The TSA check in took 1.5 hours to get through in Austin and I missed my flights back to DC

AA did not allow to board a flight because my connecting flight from DFW had been canceled. I got on another flight to another city. No service on the plane and I did not use their entertainment system.

After we landed we sat on the tarmac for 1.5 hours waiting to get to our gate. Ridiculous.

American almost always Delays flights from Austin to Dallas and back. I cannot believe they have such poor service on this route. I was about to switch to American from Delta, but they gave me enough reasons not to.

Loved the staff, boarding and drink options! Wish the comfort of the seat could have been better nevertheless

So awful Unreliable Unfriendly Bad Mad Mean Smelly Hot Late Overbooked Understaffed Expensive Cramped Narcs If they were a fruit they’d be rotten durian

Domestic airlines have really fallen from what they used to be.

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

Information on your arrival and departure airports