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$158+ Cheap flights from Santos Dumont, Brazil (SDU) to Buenos Aires (BUE)

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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
SDU — BUE
Jul 20 — Jul 271
Mon 7/20
Mon 7/27
1 adult, Economy
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Cheap flight deals from Santos Dumont to Buenos Aires

Cheapest flights from Santos Dumont to Buenos Aires
Explore the most affordable flight options available from Santos Dumont to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 20, 2026.

This Expedia deal was found by Cheapflights users on 6/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/271:55 pm
SDU
-
EZE
1 stop11h 05m
LATAM Airlines
Sun 6/282:10 am
EZE
-
SDU
1 stop6h 25m
LATAM Airlines
Deal found 6/20$400
This Expedia deal was found by Cheapflights users on 6/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:15 am
SDU
-
AEP
1 stop5h 45m
LATAM Airlines
Sun 7/510:20 am
AEP
-
SDU
1 stop11h 30m
LATAM Airlines
Deal found 6/18$400
This Justfly.com deal was found by Cheapflights users on 6/15. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:00 am
SDU
-
EZE
1 stop9h 45m
LATAM Airlines
Tue 9/292:30 am
EZE
-
SDU
1 stop19h 30m
LATAM Airlines
Deal found 6/15$403
This Justfly.com deal was found by Cheapflights users on 6/20. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/188:15 pm
SDU
-
EZE
1 stop19h 30m
LATAM Airlines
Tue 9/227:21 pm
EZE
-
SDU
2 stops26h 39m
LATAM Airlines
Deal found 6/20$405
This Justfly.com deal was found by Cheapflights users on 6/18. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:15 pm
SDU
-
EZE
1 stop19h 30m
LATAM Airlines
Mon 9/142:30 am
EZE
-
SDU
1 stop6h 05m
LATAM Airlines
Deal found 6/18$406
This Justfly.com deal was found by Cheapflights users on 6/18. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/71:55 pm
SDU
-
AEP
1 stop7h 35m
LATAM Airlines
Tue 12/2210:30 pm
AEP
-
SDU
1 stop10h 05m
LATAM Airlines
Deal found 6/18$406
This FlightHub deal was found by Cheapflights users on 6/20. 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 6/271:55 pm
SDU
-
EZE
1 stop11h 05m
LATAM Airlines
Fri 7/32:10 am
EZE
-
SDU
1 stop19h 45m
LATAM Airlines
Deal found 6/20$407
This LATAM Airlines deal was found by Cheapflights users on 6/20. 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.
Sat 10/176:00 am
SDU
-
EZE
1 stop9h 45m
LATAM Airlines
Mon 10/192:30 am
EZE
-
SDU
1 stop6h 05m
LATAM Airlines
Deal found 6/20$409
This Expedia deal was found by Cheapflights users on 6/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/26:30 am
SDU
-
EZE
1 stop18h 30m
LATAM Airlines
Thu 7/92:10 am
EZE
-
SDU
1 stop19h 45m
LATAM Airlines
Deal found 6/19$410
This Expedia deal was found by Cheapflights users on 6/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/226:15 am
SDU
-
EZE
1 stop18h 45m
LATAM Airlines
Tue 7/282:10 am
EZE
-
SDU
1 stop11h 00m
LATAM Airlines
Deal found 6/18$411
This Expedia deal was found by Cheapflights users on 6/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:15 am
SDU
-
AEP
1 stop13h 45m
LATAM Airlines
Fri 7/1010:25 am
AEP
-
SDU
1 stop11h 30m
LATAM Airlines
Deal found 6/18$411
This Justfly.com deal was found by Cheapflights users on 6/17. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/106:15 am
SDU
-
AEP
1 stop13h 45m
LATAM Airlines
Mon 8/179:45 pm
AEP
-
SDU
1 stop24h 10m
LATAM Airlines
Deal found 6/17$413

Find flight deals from Santos Dumont to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from Santos Dumont (SDU) to Buenos Aires (BUE). 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 June 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$400
(Expedia)

One-way from

$158
(Super.com)

Popular in

February

Cheapest in

May

Average price

$237
Provider with most accurate pricing for Rio de Janeiro (RIO)-Buenos Aires (BUE) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Rio de Janeiro (RIO)-Buenos Aires (BUE) flights.
Search Deals
From Rio de Janeiro Santos Dumont to Buenos Aires (BUE)
Search Deals
One-way flight from Rio de Janeiro Santos Dumont to Buenos Aires (BUE)
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Santos Dumont to Buenos Aires 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 June 20, 2026.
Use the filters below to find and compare flights from Rio de Janeiro Santos Dumont Airport to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Rio de JaneiroBuenos Aires

SDU - AEP

SDUAEP

Rio de Janeiro Santos Dumont

Mon 9/21

6:05 am-1:00 pm

1 stop6h 55m

Buenos Aires Jorge Newbery

Sun 9/27

3:40 am-12:25 pm

1 stop8h 45m

$512

Rio de JaneiroBuenos Aires

SDU - AEP

SDUAEP

Rio de Janeiro Santos Dumont

Thu 7/23

11:00 am-1:00 pm

1 stop26h 00m

Buenos Aires Jorge Newbery

Thu 7/30

3:40 am-7:40 pm

1 stop16h 00m

$513

Rio de JaneiroBuenos Aires

SDU - AEP

SDUAEP

Rio de Janeiro Santos Dumont

Wed 7/22

6:15 am-12:00 pm

1 stop5h 45m

Buenos Aires Jorge Newbery

Sun 7/26

6:20 pm-9:55 pm

1 stop27h 35m

$514

Rio de JaneiroBuenos Aires

SDU - AEP

SDUAEP

Rio de Janeiro Santos Dumont

Tue 7/21

11:00 am-1:00 pm

1 stop26h 00m

Buenos Aires Jorge Newbery

Thu 7/30

3:40 am-12:25 pm

1 stop8h 45m

$514

Rio de JaneiroBuenos Aires

SDU - AEP

SDUAEP

Rio de Janeiro Santos Dumont

Thu 10/15

3:30 pm-1:00 pm

1 stop21h 30m

Buenos Aires Jorge Newbery

Sat 10/17

3:40 am-10:45 am

1 stop7h 05m

$528

Rio de JaneiroBuenos Aires

SDU - AEP

SDUAEP

Rio de Janeiro Santos Dumont

Thu 8/13

8:50 pm-1:00 pm

1 stop16h 10m

Buenos Aires Jorge Newbery

Sat 8/15

3:40 am-12:25 pm

1 stop8h 45m

$528

Rio de JaneiroBuenos Aires

SDU - AEP

SDUAEP

Rio de Janeiro Santos Dumont

Thu 10/1

8:50 pm-1:00 pm

1 stop16h 10m

Buenos Aires Jorge Newbery

Tue 10/13

3:40 am-10:45 am

1 stop7h 05m

$537

Rio de JaneiroBuenos Aires

SDU - EZE

SDUEZE

Rio de Janeiro Santos Dumont

Sun 12/13

5:40 pm-12:20 pm

1 stop18h 40m

Buenos Aires Ministro Pistarini

Fri 12/18

3:15 am-12:35 pm

1 stop9h 20m

$553

Rio de JaneiroBuenos Aires

SDU - AEP

SDUAEP

Rio de Janeiro Santos Dumont

Wed 10/7

6:05 am-1:00 pm

1 stop6h 55m

Buenos Aires Jorge Newbery

Sun 10/11

3:40 am-4:30 pm

1 stop12h 50m

$581

Rio de JaneiroBuenos Aires

SDU - EZE

SDUEZE

Rio de Janeiro Santos Dumont

Fri 9/4

1:55 pm-10:25 pm

1 stop8h 30m

Buenos Aires Ministro Pistarini

Mon 9/7

11:55 pm-8:35 am

1 stop8h 40m

$613

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/18

Showing 1-10 of 35 resultsSorted by cheapest first
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Best time to book a flight from Santos Dumont to Buenos Aires

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

Cheapflights Insights

Everything you need to know about your flight from Rio de Janeiro Santos Dumont Airport to Buenos Aires
No data available for this route at this time. Please check back soon.

Related info for your journey

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

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

    There are many flights that can get you from Rio de Janeiro Santos Dumont Airport to Buenos Aires in 25h 55m. Fly via LATAM Airlines to get the fastest option. Rio de Janeiro Santos Dumont Airport and Buenos Aires are separated by a distance of 1238 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Santos Dumont to Buenos Aires 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

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Alternative routes for Santos Dumont to Buenos Aires

See prices for flight routes from nearby airports that may be better suited for you.
Rio de Janeiro–Galeão Intl to Ministro Pistarini flights

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