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Santos Dumont

$310+ 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 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SDU
Dec 18 — Dec 251
Thu 12/18
Thu 12/25
1 adult, Economy
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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 18, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$738
(United Airlines)

One-way from

$310
(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.
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Provider most trusted by Cheapflights users for Austin Bergstrom-Rio de Janeiro Santos Dumont flights.
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From Austin Bergstrom to Rio de Janeiro Santos Dumont
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One-way flight from Austin Bergstrom to Rio de Janeiro Santos Dumont
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Highest demand for flights based on searches. 15% potential increase in price ($129 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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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 18, 2025.

This Priceline deal was found by Cheapflights users on 11/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:55 amAUS - SDU
2 stops23h 20mLATAM Airlines
Wed 1/78:05 pmSDU - AUS
2 stops24h 24mLATAM Airlines
Deal found 11/16$727
This United Airlines deal was found by Cheapflights users on 11/15. 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 12/15:05 pmAUS - SDU
2 stops20h 30mUnited Airlines
Sat 12/65:30 pmSDU - AUS
2 stops21h 34mUnited Airlines
Deal found 11/15$838
This United Airlines deal was found by Cheapflights users on 11/16. 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.
Wed 11/267:43 pmAUS - SDU
2 stops41h 57mUnited Airlines
Wed 12/31:45 pmSDU - AUS
2 stops24h 40mUnited Airlines
Deal found 11/16$1,075
This Trip.com deal was found by Cheapflights users on 11/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:00 amAUS - SDU
2 stops29h 10mMultiple Airlines
Wed 12/316:00 amSDU - AUS
2 stops18h 57mMultiple Airlines
Deal found 11/17$1,079
This KAYAK deal was found by Cheapflights users on 11/16. 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.
Thu 12/258:20 amAUS - SDU
2 stops26h 30mLATAM Airlines
Wed 12/318:05 pmSDU - AUS
2 stops18h 09mLATAM Airlines
Deal found 11/16$1,463
This Mytrip deal was found by Cheapflights users on 11/16. 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 11/266:10 amAUS - SDU
3 stops27h 55mMultiple Airlines
Wed 12/33:50 pmSDU - AUS
3 stops33h 31mMultiple Airlines
Deal found 11/16$1,465
This Mytrip deal was found by Cheapflights users on 11/16. 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 12/315:30 amAUS - SDU
3 stops30h 00mMultiple Airlines
Wed 1/78:25 pmSDU - AUS
3 stops22h 39mMultiple Airlines
Deal found 11/16$1,467
This KAYAK deal was found by Cheapflights users on 11/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1011:36 amAUS - SDU
2 stops22h 39mLATAM Airlines
Thu 12/118:05 pmSDU - AUS
2 stops21h 40mLATAM Airlines
Deal found 11/17$1,553
This KAYAK deal was found by Cheapflights users on 11/16. 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 12/248:00 amAUS - SDU
2 stops26h 50mLATAM Airlines
Wed 12/318:05 pmSDU - AUS
2 stops18h 09mLATAM Airlines
Deal found 11/16$1,590
This Priceline deal was found by Cheapflights users on 11/17. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2111:30 amAUS - SDU
2 stops27h 30mLATAM Airlines
Fri 11/285:10 pmSDU - AUS
2 stops27h 12mLATAM Airlines
Deal found 11/17$1,723

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 18, 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

Wed 12/31

10:55 am-1:15 pm

2 stops23h 20m

Rio de Janeiro Santos Dumont

Wed 1/7

8:05 pm-5:29 pm

2 stops24h 24m

$727

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Mon 12/1

5:05 pm-4:35 pm

2 stops20h 30m

Rio de Janeiro Santos Dumont

Sat 12/6

5:30 pm-12:04 pm

2 stops21h 34m

$838

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Tue 2/3

1:55 pm-1:50 pm

2 stops20h 55m

Rio de Janeiro Santos Dumont

Sun 2/15

2:00 pm-9:35 pm

2 stops34h 35m

$919

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Tue 2/3

6:32 am-2:20 pm

2 stops28h 48m

Rio de Janeiro Santos Dumont

Sun 2/15

2:50 pm-11:14 am

2 stops23h 24m

$960

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Thu 12/25

6:00 am-2:10 pm

2 stops29h 10m

Rio de Janeiro Santos Dumont

Wed 12/31

6:00 am-9:57 pm

2 stops18h 57m

$1,079

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

$1,180

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Thu 2/12

10:50 am-2:10 pm

2 stops24h 20m

Rio de Janeiro Santos Dumont

Mon 2/16

8:25 pm-9:27 pm

2 stops28h 02m

$1,193

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Mon 2/2

6:09 pm-10:45 am

2 stops37h 36m

Rio de Janeiro Santos Dumont

Sun 3/1

8:25 pm-12:25 am

2 stops31h 00m

$1,214

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Thu 2/12

10:50 am-4:55 pm

2 stops27h 05m

Rio de Janeiro Santos Dumont

Sun 2/22

11:35 am-10:00 am

2 stops25h 25m

$1,274

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/16

Showing 1-10 of 18 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 30m. 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

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