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Santos Dumont

$334+ 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 3/31. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SDU
Dec 12 — Dec 191
Fri 12/12
Fri 12/19
1 adult, Economy
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Cheap 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 November 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$623
(Air Canada)

One-way from

$352
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$868
Provider with most accurate pricing for Boston Logan Intl-Rio de Janeiro Santos Dumont flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Rio de Janeiro Santos Dumont flights.
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From Boston Logan Intl to Rio de Janeiro Santos Dumont
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One-way flight from Boston Logan Intl to Rio de Janeiro Santos Dumont
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Highest demand for flights based on searches. 10% potential increase in price ($98 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($33 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 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 November 12, 2025.

This Gotogate deal was found by Cheapflights users on 11/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/178:55 amBOS - SDU
1 stop25h 40mLATAM Airlines
Wed 12/38:05 pmSDU - BOS
1 stop12h 30mLATAM Airlines
Deal found 11/11$721
This KAYAK deal was found by Cheapflights users on 11/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:05 amBOS - SDU
2 stops25h 25mLATAM Airlines
Sat 1/311:50 pmSDU - BOS
2 stops23h 25mLATAM Airlines
Deal found 11/11$723
This CheapOair deal was found by Cheapflights users on 11/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/161:10 pmBOS - SDU
2 stops21h 55mLATAM Airlines
Sat 11/229:20 pmSDU - BOS
2 stops35h 15mLATAM Airlines
Deal found 11/10$729
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/135:00 pmBOS - SDU
2 stops36h 05mMultiple Airlines
Thu 11/202:00 pmSDU - BOS
1 stop18h 35mMultiple Airlines
Deal found 11/11$752
This Mytrip deal was found by Cheapflights users on 11/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/711:08 amBOS - SDU
3 stops33h 17mMultiple Airlines
Mon 12/156:15 amSDU - BOS
3 stops29h 46mMultiple Airlines
Deal found 11/11$763
This Mytrip deal was found by Cheapflights users on 11/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1111:08 amBOS - SDU
2 stops29h 02mMultiple Airlines
Mon 12/156:15 amSDU - BOS
3 stops29h 46mMultiple Airlines
Deal found 11/11$796
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/42:44 pmBOS - SDU
2 stops22h 11mMultiple Airlines
Sun 12/72:00 pmSDU - BOS
1 stop18h 35mMultiple Airlines
Deal found 11/11$798
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/82:44 pmBOS - SDU
2 stops19h 36mMultiple Airlines
Thu 1/298:05 pmSDU - BOS
1 stop12h 30mMultiple Airlines
Deal found 11/11$804
This Delta deal was found by Cheapflights users on 11/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/242:00 pmBOS - SDU
2 stops21h 15mDelta
Thu 12/48:05 pmSDU - BOS
1 stop12h 30mDelta
Deal found 11/12$807
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/257:55 amBOS - SDU
2 stops21h 40mMultiple Airlines
Wed 12/38:05 pmSDU - BOS
1 stop12h 30mMultiple Airlines
Deal found 11/12$810
This KAYAK deal was found by Cheapflights users on 11/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/131:10 pmBOS - SDU
2 stops21h 55mLATAM Airlines
Thu 11/201:40 pmSDU - BOS
2 stops18h 55mLATAM Airlines
Deal found 11/11$812

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 November 12, 2025.
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

Boston

Fly to

Santos Dumont

Route

Depart

Return

Price

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Tue 5/5

3:16 pm-2:05 pm

2 stops21h 49m

Rio de Janeiro Santos Dumont

Sun 5/17

6:00 am-12:21 am

2 stops19h 21m

$699

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Mon 2/9

8:55 am-9:25 am

1 stop22h 30m

Rio de Janeiro Santos Dumont

Wed 2/11

8:05 pm-6:35 am

1 stop12h 30m

$703

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Thu 5/7

9:55 am-9:35 am

1 stop22h 40m

Rio de Janeiro Santos Dumont

Tue 5/19

8:20 pm-11:23 am

2 stops16h 03m

$713

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Thu 5/7

5:00 pm-1:40 pm

2 stops19h 40m

Rio de Janeiro Santos Dumont

Fri 5/22

8:20 pm-3:19 pm

2 stops19h 59m

$718

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Wed 3/25

9:55 am-9:25 am

1 stop22h 30m

Rio de Janeiro Santos Dumont

Mon 3/30

1:45 pm-9:52 am

2 stops21h 07m

$746

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Tue 2/3

5:26 pm-2:20 pm

2 stops18h 54m

Rio de Janeiro Santos Dumont

Sun 2/8

8:05 pm-6:35 am

1 stop12h 30m

$766

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Sun 3/15

1:01 pm-4:55 pm

2 stops26h 54m

Rio de Janeiro Santos Dumont

Sat 3/21

6:00 am-11:09 pm

2 stops18h 09m

$777

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Thu 5/7

3:16 pm-10:40 am

2 stops18h 24m

Rio de Janeiro Santos Dumont

Wed 5/20

8:30 pm-10:52 pm

2 stops27h 22m

$779

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Tue 2/10

1:30 pm-9:25 am

2 stops17h 55m

Rio de Janeiro Santos Dumont

Wed 2/11

2:30 pm-6:35 am

1 stop18h 05m

$796

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Tue 3/31

3:43 pm-2:05 pm

2 stops21h 22m

$334

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

Showing 1-10 of 16 results
1
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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 November.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boston-Rio de Janeiro Santos Dumont Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

Cheapflights Insights

Everything you need to know about your flight from Boston to Rio de Janeiro Santos Dumont Airport

What is the cheapest time of day to fly from BOS to SDU?

Find hourly flight availability from Boston to Santos Dumont. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 12, 2025.

It’s typically best to fly out from Boston to Rio de Janeiro Santos Dumont Airport in the evening. Doing so could potentially save you 23% on the flight price compared to flying in the afternoon, which is usually more expensive.

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?

    GOL and Delta can get you from Boston to Rio de Janeiro Santos Dumont Airport in just under 21h 49m. Your travel time can differ by up to 41m. There are 4844 mi between Boston and Rio de Janeiro Santos Dumont Airport. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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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Alternative routes for Boston to Santos Dumont

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

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