HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Santos Dumont

$314+ Cheap flights from Austin (AUS) to Santos Dumont, Brazil (SDU)

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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SDU
Dec 11 — Dec 181
Thu 12/11
Thu 12/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Austin to Santos Dumont with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Austin to Santos Dumont

Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) to Santos Dumont (SDU). 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 November 11, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$683
(KAYAK)

One-way from

$314
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$622
Provider with most accurate pricing for Austin Bergstrom-Rio de Janeiro Santos Dumont flight deals.
Search Deals
Provider most trusted by Cheapflights users for Austin Bergstrom-Rio de Janeiro Santos Dumont flights.
Search Deals
From Austin Bergstrom to Rio de Janeiro Santos Dumont
Search Deals
One-way flight from Austin Bergstrom to Rio de Janeiro Santos Dumont
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($125 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from Austin to Santos Dumont

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

This United Airlines deal was found by Cheapflights users on 11/9. 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.
Mon 12/17:43 pmAUS - SDU
2 stops41h 57mUnited Airlines
Sat 12/65:30 pmSDU - AUS
2 stops20h 49mUnited Airlines
Deal found 11/9$844
This FlightHub deal was found by Cheapflights users on 11/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1311:30 amAUS - SDU
2 stops22h 45mLATAM Airlines
Thu 11/202:00 pmSDU - AUS
2 stops30h 08mLATAM Airlines
Deal found 11/9$1,001
This Mytrip deal was found by Cheapflights users on 11/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:00 amAUS - SDU
2 stops23h 55mMultiple Airlines
Wed 12/316:00 amSDU - AUS
2 stops18h 57mMultiple Airlines
Deal found 11/9$1,160
This United Airlines deal was found by Cheapflights users on 11/9. 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.
Sat 11/225:41 pmAUS - SDU
2 stops43h 59mUnited Airlines
Thu 11/271:45 pmSDU - AUS
2 stops28h 37mUnited Airlines
Deal found 11/9$1,172
This Mytrip deal was found by Cheapflights users on 11/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/246:10 amAUS - SDU
3 stops31h 35mMultiple Airlines
Wed 11/267:45 amSDU - AUS
2 stops28h 29mMultiple Airlines
Deal found 11/9$1,225
This Mytrip deal was found by Cheapflights users on 11/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:10 amAUS - SDU
3 stops31h 25mMultiple Airlines
Sat 12/66:20 amSDU - AUS
3 stops19h 01mMultiple Airlines
Deal found 11/9$1,341
This KAYAK deal was found by Cheapflights users on 11/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1011:30 amAUS - SDU
2 stops22h 45mLATAM Airlines
Sun 11/168:05 pmSDU - AUS
2 stops21h 40mLATAM Airlines
Deal found 11/9$1,345

Cheapflights Fare Finder

 
Customize your flight search to find flights from Austin to Santos Dumont 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 November 11, 2025.
Use the filters below to find and compare flights from Austin to Rio de Janeiro Santos Dumont Airport that are best for you.

Fly from

Austin

Fly to

Santos Dumont

Route

Depart

Return

Price

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Sun 2/8

1:44 pm-1:15 pm

2 stops20h 31m

Rio de Janeiro Santos Dumont

Sun 2/15

2:00 pm-5:37 pm

2 stops30h 37m

$683

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Sun 2/8

2:13 pm-2:20 pm

2 stops21h 07m

Rio de Janeiro Santos Dumont

Sun 2/15

2:50 pm-11:13 am

2 stops23h 23m

$788

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Tue 2/3

5:06 pm-2:20 pm

2 stops18h 14m

Rio de Janeiro Santos Dumont

Sun 2/15

2:50 pm-11:13 am

2 stops23h 23m

$838

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Mon 2/9

6:09 pm-10:25 pm

2 stops25h 16m

Rio de Janeiro Santos Dumont

Mon 2/16

8:25 pm-9:27 pm

2 stops28h 02m

$1,088

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Wed 2/4

1:05 pm-2:20 pm

2 stops22h 15m

Rio de Janeiro Santos Dumont

Sat 2/14

11:20 am-9:27 pm

2 stops37h 07m

$1,105

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Tue 2/3

1:05 pm-2:20 pm

2 stops22h 15m

Rio de Janeiro Santos Dumont

Sat 2/14

11:20 am-9:27 pm

2 stops37h 07m

$1,105

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Wed 12/24

6:00 am-8:55 am

2 stops23h 55m

Rio de Janeiro Santos Dumont

Wed 12/31

6:00 am-9:57 pm

2 stops18h 57m

$1,160

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Sat 11/22

5:41 pm-4:40 pm

2 stops43h 59m

Rio de Janeiro Santos Dumont

Thu 11/27

1:45 pm-3:22 pm

2 stops28h 37m

$1,172

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Sat 12/6

5:30 am-10:25 pm

2 stops37h 55m

$314

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Mon 12/8

5:25 am-4:35 pm

2 stops32h 10m

$340

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

Showing 1-10 of 17 results
1
2

Compare providers for flights from Austin to Santos Dumont

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 Santos Dumont in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 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-Rio de Janeiro Santos Dumont Airport flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Austin-Rio de Janeiro Santos Dumont Airport flight deals on Cheapflights vs. Expedia 90-95% of the time. Price accuracy is based on data collected from Austin-Rio de Janeiro Santos Dumont Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Austin-Rio de Janeiro Santos Dumont Airport flights, Cheapflights users trust Expedia the most. Expedia 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-Rio de Janeiro Santos Dumont Airport 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 Santos Dumont

Have a flexible travel schedule? Discover the best time to fly to Santos Dumont 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.

Related info for your journey

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

  • What airport do you fly from for flights from Austin to Rio de Janeiro Santos Dumont?

    Austin Bergstrom (AUS), located 7.5 mi from the city center, is the airport you fly out of when you book flights from Austin to Rio de Janeiro Santos Dumont. 0 airlines have flights from Austin Bergstrom to Rio de Janeiro Santos Dumont on a regular basis. Booking flights from Austin Bergstrom to Rio de Janeiro Santos Dumont should not be difficult; the airport handles an average of 0 outbound flights to Rio de Janeiro Santos Dumont per day.

  • How long is the flight from Austin to Rio de Janeiro Santos Dumont Airport?

    Departing from Austin to Rio de Janeiro Santos Dumont Airport will take you 20h 31m. The distance between Austin and Rio de Janeiro Santos Dumont Airport is about 5147 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Austin to Santos Dumont that include hotel bookings?

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

  • How can I find direct flights from Austin to Santos Dumont?

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

  • Can I find deals for business class flights from Austin to Santos Dumont?

    Yes. Cheapflights offers flight deals from Austin to Santos Dumont 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.