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Santos Dumont

$340+ Cheap flights from Boston (BOS) 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 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SDU
Aug 29 — Sep 51
Sat 8/29
Sat 9/5
1 adult, Economy
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Cheap flight deals from Boston to Santos Dumont

Cheapest flights from Boston to Santos Dumont
Explore the most affordable flight options available from Boston to Santos Dumont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2026.

This LATAM Airlines deal was found by Cheapflights users on 7/27. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/165:00 pm
BOS
-
SDU
2 stops21h 35m
LATAM Airlines
Fri 11/204:55 pm
SDU
-
BOS
1 stop15h 50m
LATAM Airlines
Deal found 7/27$718
This Cheapflightsfares deal was found by Cheapflights users on 7/25. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/168:55 am
BOS
-
SDU
1 stop22h 30m
LATAM Airlines
Sat 11/2110:05 am
SDU
-
BOS
1 stop22h 40m
LATAM Airlines
Deal found 7/25$728
This Travelocity deal was found by Cheapflights users on 7/29. 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.
Sun 11/88:55 am
BOS
-
SDU
1 stop35h 05m
Multiple Airlines
Mon 11/161:45 pm
SDU
-
BOS
2 stops27h 08m
Multiple Airlines
Deal found 7/29$731
This KAYAK deal was found by Cheapflights users on 7/28. 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.
Sat 11/142:46 pm
BOS
-
SDU
2 stops19h 39m
GOL
Thu 11/196:00 am
SDU
-
BOS
2 stops18h 53m
GOL
Deal found 7/28$733
This Travelocity deal was found by Cheapflights users on 7/28. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/148:55 am
BOS
-
SDU
1 stop22h 30m
Multiple Airlines
Thu 11/191:45 pm
SDU
-
BOS
2 stops30h 13m
Multiple Airlines
Deal found 7/28$736
This Travelocity deal was found by Cheapflights users on 7/25. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/88:55 am
BOS
-
SDU
2 stops21h 50m
Multiple Airlines
Sat 11/147:55 am
SDU
-
BOS
2 stops28h 22m
Multiple Airlines
Deal found 7/25$741
This Mytrip deal was found by Cheapflights users on 7/29. 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.
Sun 11/18:55 am
BOS
-
SDU
2 stops26h 40m
Multiple Airlines
Tue 11/171:45 pm
SDU
-
BOS
2 stops22h 32m
Multiple Airlines
Deal found 7/29$746
This Priceline deal was found by Cheapflights users on 7/25. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/168:55 am
BOS
-
SDU
1 stop22h 30m
Multiple Airlines
Fri 11/201:45 pm
SDU
-
BOS
2 stops22h 13m
Multiple Airlines
Deal found 7/25$754
This Orbitz deal was found by Cheapflights users on 7/29. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/92:46 pm
BOS
-
SDU
2 stops19h 44m
Multiple Airlines
Mon 11/161:45 pm
SDU
-
BOS
2 stops31h 17m
Multiple Airlines
Deal found 7/29$756
This GOL deal was found by Cheapflights users on 7/28. 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 GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/92:13 pm
BOS
-
SDU
2 stops21h 12m
GOL
Wed 10/148:50 pm
SDU
-
BOS
2 stops26h 08m
GOL
Deal found 7/28$757
This Expedia deal was found by Cheapflights users on 7/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/114:20 pm
BOS
-
SDU
2 stops39h 05m
Multiple Airlines
Tue 11/171:45 pm
SDU
-
BOS
2 stops22h 32m
Multiple Airlines
Deal found 7/25$760

Find flight deals from Boston to Santos Dumont

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) 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 July 30, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$757
(GOL)

One-way from

$340
(LATAM Airlines)

Popular in

August

Cheapest in

October

Average price

$979
Provider with most accurate pricing for Boston Logan Intl-Rio de Janeiro Santos Dumont flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Rio de Janeiro Santos Dumont flights.
Search Deals
From Boston Logan Intl to Rio de Janeiro Santos Dumont
Search Deals
One-way flight from Boston Logan Intl to Rio de Janeiro Santos Dumont
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($59 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston 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 July 30, 2026.
Use the filters below to find and compare flights from Boston to Rio de Janeiro Santos Dumont Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Fri 9/18

9:55 am-8:35 am

1 stop21h 40m

Rio de Janeiro Santos Dumont

Tue 9/29

6:45 am-7:35 am

1 stop25h 50m

$782

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Fri 9/18

9:55 am-8:35 am

1 stop21h 40m

Rio de Janeiro Santos Dumont

Fri 9/25

6:15 am-11:30 pm

2 stops18h 15m

$792

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Fri 9/18

9:55 am-8:35 am

1 stop21h 40m

Rio de Janeiro Santos Dumont

Thu 9/24

6:15 am-3:15 pm

2 stops34h 00m

$792

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Sun 9/20

2:00 pm-1:10 pm

2 stops22h 10m

Rio de Janeiro Santos Dumont

Thu 9/24

6:15 am-11:30 pm

2 stops18h 15m

$796

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Sun 9/20

2:00 pm-1:10 pm

2 stops22h 10m

Rio de Janeiro Santos Dumont

Sun 9/27

6:10 am-10:27 am

2 stops29h 17m

$796

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Mon 9/21

9:00 am-1:10 pm

2 stops27h 10m

Rio de Janeiro Santos Dumont

Sun 9/27

6:10 am-11:30 pm

2 stops18h 20m

$796
Quickest round-trip

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Mon 11/16

2:46 pm-12:30 pm

2 stops19h 44m

Rio de Janeiro Santos Dumont

Sat 11/21

6:00 am-11:56 pm

2 stops19h 56m

$856

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Sat 9/12

7:23 pm-5:45 pm

2 stops21h 22m

Rio de Janeiro Santos Dumont

Wed 9/16

1:45 pm-10:18 am

2 stops21h 33m

$944

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Tue 9/8

6:42 pm-4:45 pm

2 stops21h 03m

Rio de Janeiro Santos Dumont

Tue 9/15

1:45 pm-10:18 am

2 stops21h 33m

$953

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Mon 1/11

7:35 pm-4:45 pm

2 stops19h 10m

Rio de Janeiro Santos Dumont

Fri 1/22

1:45 pm-10:31 am

2 stops22h 46m

$963

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 21 resultsSorted by cheapest first
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3

Compare providers for flights from Boston 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 Boston to Santos Dumont in July.
ProviderPrice AccuracyTrust Score*
OvagoPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 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 Boston-Rio de Janeiro Santos Dumont Airport flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Boston-Rio de Janeiro Santos Dumont Airport flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from Boston-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 Boston-Rio de Janeiro Santos Dumont Airport flights, Cheapflights users trust Ovago the most. Ovago 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 Boston-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 Boston to Santos Dumont

Have a flexible travel schedule? Discover the best time to fly to Santos Dumont from Boston 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 Boston 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 Boston to Rio de Janeiro Santos Dumont?

    If you book a flight to Rio de Janeiro Santos Dumont from Boston, you will be flying from Logan Intl, which is the city’s only airport. Boston Logan Intl (BOS) is located 2.6 mi from the center of Boston. There are 0 flights from Logan Intl to Rio de Janeiro Santos Dumont per day from 0 different airlines.

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

    Delta can get you from Boston to Rio de Janeiro Santos Dumont Airport in just under 21h 40m. Your travel time can differ by up to . There are 4844 mi between Boston and Rio de Janeiro Santos Dumont Airport.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boston 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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