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Santos Dumont

$350+ 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SDU
Mar 17 — Mar 241
Tue 3/17
Tue 3/24
1 adult, Economy
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Cheap 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 February 15, 2026.

This KAYAK deal was found by Cheapflights users on 2/13. 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 8/203:30 pm
AUS
-
SDU
2 stops39h 05m
LATAM Airlines
Tue 8/258:15 pm
SDU
-
AUS
2 stops27h 10m
LATAM Airlines
Deal found 2/13$610
This KAYAK deal was found by Cheapflights users on 2/10. 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 7/204:59 pm
AUS
-
SDU
2 stops37h 36m
LATAM Airlines
Tue 7/288:15 pm
SDU
-
AUS
2 stops27h 10m
LATAM Airlines
Deal found 2/10$618
This KAYAK deal was found by Cheapflights users on 2/14. 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.
Sun 3/17:20 am
AUS
-
SDU
2 stops26h 55m
LATAM Airlines
Tue 3/242:00 pm
SDU
-
AUS
2 stops28h 45m
LATAM Airlines
Deal found 2/14$634
This Gurufare deal was found by Cheapflights users on 2/11. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/36:45 pm
AUS
-
SDU
2 stops40h 25m
LATAM Airlines
Fri 8/78:15 pm
SDU
-
AUS
2 stops16h 57m
LATAM Airlines
Deal found 2/11$664
This Travelocity deal was found by Cheapflights users on 2/13. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/203:30 pm
AUS
-
SDU
2 stops19h 40m
LATAM Airlines
Mon 8/248:15 pm
SDU
-
AUS
2 stops27h 10m
LATAM Airlines
Deal found 2/13$694
This United Airlines deal was found by Cheapflights users on 2/13. 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.
Sun 3/87:00 am
AUS
-
SDU
2 stops31h 45m
United Airlines
Thu 3/121:50 pm
SDU
-
AUS
2 stops26h 08m
United Airlines
Deal found 2/13$721
This United Airlines deal was found by Cheapflights users on 2/13. 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 3/75:33 pm
AUS
-
SDU
2 stops44h 12m
United Airlines
Mon 3/161:50 pm
SDU
-
AUS
2 stops25h 24m
United Airlines
Deal found 2/13$730
This FlightHub deal was found by Cheapflights users on 2/13. 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.
Wed 4/229:00 am
AUS
-
SDU
2 stops29h 35m
LATAM Airlines
Tue 4/281:55 pm
SDU
-
AUS
2 stops36h 22m
LATAM Airlines
Deal found 2/13$748
This United Airlines deal was found by Cheapflights users on 2/11. 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 2/257:39 pm
AUS
-
SDU
2 stops42h 06m
United Airlines
Thu 3/51:50 pm
SDU
-
AUS
2 stops21h 44m
United Airlines
Deal found 2/11$757
This United Airlines deal was found by Cheapflights users on 2/13. 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 2/251:10 pm
AUS
-
SDU
2 stops24h 35m
United Airlines
Thu 3/121:50 pm
SDU
-
AUS
2 stops23h 28m
United Airlines
Deal found 2/13$762
This United Airlines deal was found by Cheapflights users on 2/10. 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.
Sun 3/19:43 am
AUS
-
SDU
2 stops28h 02m
United Airlines
Wed 3/41:50 pm
SDU
-
AUS
2 stops27h 08m
United Airlines
Deal found 2/10$771

Find 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 February 15, 2026.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Round-trip from

$618
(KAYAK)

One-way from

$350
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$561
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. 11% potential increase in price ($90 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 15, 2026.
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

Mon 7/20

4:59 pm-8:35 am

2 stops37h 36m

Rio de Janeiro Santos Dumont

Tue 7/28

8:15 pm-9:25 pm

2 stops27h 10m

$618

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Sun 3/1

7:20 am-1:15 pm

2 stops26h 55m

Rio de Janeiro Santos Dumont

Tue 3/24

2:00 pm-4:45 pm

2 stops28h 45m

$634

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Sun 3/8

7:00 am-4:45 pm

2 stops31h 45m

Rio de Janeiro Santos Dumont

Tue 3/17

1:50 pm-11:08 am

2 stops23h 18m

$721

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Sun 3/8

7:00 am-4:45 pm

2 stops31h 45m

Rio de Janeiro Santos Dumont

Mon 3/16

1:50 pm-11:18 am

2 stops23h 28m

$721

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Mon 3/9

7:00 am-4:45 pm

2 stops31h 45m

Rio de Janeiro Santos Dumont

Thu 3/12

1:50 pm-4:11 pm

2 stops28h 21m

$721

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Mon 3/9

7:00 am-4:45 pm

2 stops31h 45m

Rio de Janeiro Santos Dumont

Mon 3/16

1:50 pm-1:14 pm

2 stops25h 24m

$721

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Wed 3/11

7:00 am-4:45 pm

2 stops31h 45m

Rio de Janeiro Santos Dumont

Mon 3/16

1:50 pm-1:14 pm

2 stops25h 24m

$721

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Mon 3/9

9:00 am-4:45 pm

2 stops29h 45m

Rio de Janeiro Santos Dumont

Tue 3/17

1:50 pm-11:08 am

2 stops23h 18m

$721

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Tue 3/10

4:18 pm-4:45 pm

2 stops22h 27m

Rio de Janeiro Santos Dumont

Tue 3/17

1:50 pm-11:08 am

2 stops23h 18m

$721

AustinRio de Janeiro

AUS - SDU

AUSSDU

Austin Bergstrom

Tue 3/10

12:16 pm-4:45 pm

2 stops26h 29m

Rio de Janeiro Santos Dumont

Mon 3/16

1:50 pm-1:58 pm

2 stops26h 08m

$721

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/12

Showing 1-10 of 21 results
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  • 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% 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 31h 45m. 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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