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Santos Dumont

$297+ 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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SDU
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
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 October 28, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$578
(KAYAK)

One-way from

$297
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$705
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. 13% potential increase in price ($110 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 28, 2025.

This United Airlines deal was found by Cheapflights users on 10/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/57:43 pmAUS - SDU
2 stops41h 57mUnited Airlines
Tue 11/111:45 pmSDU - AUS
2 stops24h 26mUnited Airlines
Deal found 10/27$684
This Mytrip deal was found by Cheapflights users on 10/28. 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.
Tue 11/256:10 amAUS - SDU
3 stops34h 55mMultiple Airlines
Tue 12/21:45 pmSDU - AUS
3 stops36h 38mMultiple Airlines
Deal found 10/28$688
This United Airlines deal was found by Cheapflights users on 10/25. 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 11/255:59 pmAUS - SDU
2 stops19h 46mUnited Airlines
Thu 12/41:45 pmSDU - AUS
2 stops25h 19mUnited Airlines
Deal found 10/25$708
This Mytrip deal was found by Cheapflights users on 10/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/256:10 amAUS - SDU
3 stops31h 35mMultiple Airlines
Thu 12/46:20 amSDU - AUS
2 stops18h 25mMultiple Airlines
Deal found 10/25$728
This United Airlines deal was found by Cheapflights users on 10/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/612:15 pmAUS - SDU
2 stops25h 25mUnited Airlines
Tue 11/111:45 pmSDU - AUS
3 stops28h 37mUnited Airlines
Deal found 10/27$748
This United Airlines deal was found by Cheapflights users on 10/28. 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 11/254:18 pmAUS - SDU
2 stops21h 27mUnited Airlines
Tue 12/21:45 pmSDU - AUS
2 stops29h 00mUnited Airlines
Deal found 10/28$758
This Mytrip deal was found by Cheapflights users on 10/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/26:10 amAUS - SDU
3 stops25h 35mMultiple Airlines
Mon 12/81:45 pmSDU - AUS
3 stops35h 36mMultiple Airlines
Deal found 10/26$780
This LATAM Airlines deal was found by Cheapflights users on 10/25. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/75:25 amAUS - SDU
2 stops25h 00mLATAM Airlines
Sat 1/172:00 pmSDU - AUS
2 stops24h 26mLATAM Airlines
Deal found 10/25$902
This United Airlines deal was found by Cheapflights users on 10/28. 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 12/17:00 amAUS - SDU
2 stops30h 35mUnited Airlines
Tue 12/91:45 pmSDU - AUS
2 stops33h 58mUnited Airlines
Deal found 10/28$910
This FlightHub deal was found by Cheapflights users on 10/27. 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.
Sat 11/299:00 amAUS - SDU
2 stops27h 30mLATAM Airlines
Mon 12/87:45 pmSDU - AUS
2 stops28h 55mLATAM Airlines
Deal found 10/27$918
This Mytrip deal was found by Cheapflights users on 10/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/52:21 pmAUS - SDU
2 stops24h 49mMultiple Airlines
Sun 11/910:00 amSDU - AUS
2 stops26h 14mMultiple Airlines
Deal found 10/27$920
This KAYAK deal was found by Cheapflights users on 10/28. 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 11/1311:30 amAUS - SDU
2 stops22h 45mLATAM Airlines
Thu 11/208:05 pmSDU - AUS
2 stops28h 29mLATAM Airlines
Deal found 10/28$952

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 October 28, 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

Sat 2/28

1:40 pm-9:35 am

2 stops16h 55m

Rio de Janeiro Santos Dumont

Sat 3/7

8:05 pm-11:56 am

2 stops18h 51m

$578

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Sun 3/29

2:45 pm-1:40 pm

2 stops20h 55m

Rio de Janeiro Santos Dumont

Tue 4/7

8:20 pm-6:52 pm

2 stops24h 32m

$631

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Mon 3/30

2:45 pm-9:35 am

2 stops16h 50m

Rio de Janeiro Santos Dumont

Mon 4/6

8:20 pm-6:52 pm

2 stops24h 32m

$631

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Wed 4/1

10:52 am-9:35 am

2 stops20h 43m

Rio de Janeiro Santos Dumont

Tue 4/7

8:20 pm-6:52 pm

2 stops24h 32m

$631

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Sun 3/29

2:45 pm-1:40 pm

2 stops20h 55m

Rio de Janeiro Santos Dumont

Fri 4/10

8:20 pm-9:41 pm

2 stops27h 21m

$640

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Tue 11/25

6:10 am-8:05 pm

3 stops34h 55m

Rio de Janeiro Santos Dumont

Tue 12/2

1:45 pm-11:23 pm

3 stops36h 38m

$688

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Tue 11/25

5:59 pm-4:45 pm

2 stops19h 46m

Rio de Janeiro Santos Dumont

Thu 12/4

1:45 pm-12:04 pm

2 stops25h 19m

$708

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Fri 2/27

1:40 pm-9:35 am

2 stops16h 55m

Rio de Janeiro Santos Dumont

Sat 3/14

8:05 pm-12:56 pm

2 stops18h 51m

$726

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Tue 11/25

4:18 pm-4:45 pm

2 stops21h 27m

Rio de Janeiro Santos Dumont

Tue 12/2

1:45 pm-3:45 pm

2 stops29h 00m

$758

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Sat 2/28

10:52 am-9:35 am

2 stops19h 43m

Rio de Janeiro Santos Dumont

Sun 3/8

11:00 am-9:41 pm

2 stops36h 41m

$765

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 21 results
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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 October.
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 16h 55m. The distance between Austin and Rio de Janeiro Santos Dumont Airport is about 5147 mi.

  • 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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