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Santos Dumont

$317+ 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 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SDU
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
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 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$623
(Air Canada)

One-way from

$317
(Vliegwinkel)

Popular in

December

Cheapest in

October

Average price

$870
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. 9% potential increase in price ($86 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($29 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 26, 2025.

This Mytrip deal was found by Cheapflights users on 11/24. 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 12/3112:29 pmBOS - SDU
2 stops22h 16mMultiple Airlines
Mon 2/911:20 amSDU - BOS
2 stops21h 15mMultiple Airlines
Deal found 11/24$743
This United Airlines deal was found by Cheapflights users on 11/24. 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 12/12:21 pmBOS - SDU
2 stops24h 14mUnited Airlines
Mon 12/81:45 pmSDU - BOS
2 stops22h 53mUnited Airlines
Deal found 11/24$802
This Priceline deal was found by Cheapflights users on 11/25. 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.
Fri 11/283:00 pmBOS - SDU
2 stops25h 00mLATAM Airlines
Mon 12/19:20 pmSDU - BOS
2 stops59h 15mLATAM Airlines
Deal found 11/25$807
This United Airlines deal was found by Cheapflights users on 11/25. 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.
Thu 12/43:32 pmBOS - SDU
2 stops23h 03mUnited Airlines
Wed 12/101:45 pmSDU - BOS
2 stops21h 29mUnited Airlines
Deal found 11/25$834
This Expedia deal was found by Cheapflights users on 11/24. 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.
Tue 11/2511:25 amBOS - SDU
2 stops23h 50mMultiple Airlines
Tue 12/21:45 pmSDU - BOS
2 stops21h 47mMultiple Airlines
Deal found 11/24$856
This Orbitz deal was found by Cheapflights users on 11/25. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:10 pmBOS - SDU
2 stops42h 00mMultiple Airlines
Wed 12/102:00 pmSDU - BOS
2 stops23h 12mMultiple Airlines
Deal found 11/25$915
This Orbitz deal was found by Cheapflights users on 11/25. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/18:59 pmBOS - SDU
2 stops38h 16mLATAM Airlines
Wed 12/102:00 pmSDU - BOS
1 stop18h 35mLATAM Airlines
Deal found 11/25$942
This SmartFares deal was found by Cheapflights users on 11/25. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/119:59 amBOS - SDU
2 stops25h 16mLATAM Airlines
Sat 1/249:20 pmSDU - BOS
2 stops35h 15mLATAM Airlines
Deal found 11/25$949
This Mytrip deal was found by Cheapflights users on 11/25. 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.
Fri 11/289:54 pmBOS - SDU
3 stops22h 31mMultiple Airlines
Mon 12/19:20 pmSDU - BOS
2 stops59h 15mMultiple Airlines
Deal found 11/25$971
This Priceline deal was found by Cheapflights users on 11/25. 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.
Wed 11/268:55 amBOS - SDU
1 stop20h 20mLATAM Airlines
Wed 12/35:10 pmSDU - BOS
1 stop15h 25mLATAM Airlines
Deal found 11/25$980
This FlightHub deal was found by Cheapflights users on 11/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/88:55 amBOS - SDU
1 stop20h 20mLATAM Airlines
Sat 12/138:05 pmSDU - BOS
2 stops17h 07mLATAM Airlines
Deal found 11/25$986

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 26, 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

Sat 1/17

3:40 pm-5:45 pm

2 stops24h 05m

Rio de Janeiro Santos Dumont

Sat 1/24

5:10 pm-9:32 am

2 stops18h 22m

$673

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Mon 1/12

6:15 am-2:10 pm

2 stops29h 55m

Rio de Janeiro Santos Dumont

Sun 2/1

2:50 pm-9:32 am

2 stops20h 42m

$689

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Wed 1/21

4:35 pm-2:30 pm

2 stops19h 55m

Rio de Janeiro Santos Dumont

Wed 1/28

11:20 am-4:19 pm

3 stops30h 59m

$697

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Sun 1/18

1:00 pm-2:05 pm

3 stops23h 05m

Rio de Janeiro Santos Dumont

Mon 2/2

11:20 am-9:32 am

2 stops24h 12m

$702

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Mon 12/1

2:21 pm-4:35 pm

2 stops24h 14m

Rio de Janeiro Santos Dumont

Mon 12/8

1:45 pm-10:38 am

2 stops22h 53m

$802

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Mon 2/2

3:07 pm-2:30 pm

2 stops21h 23m

Rio de Janeiro Santos Dumont

Wed 2/11

8:05 pm-6:35 am

1 stop12h 30m

$830

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Thu 12/4

3:32 pm-4:35 pm

2 stops23h 03m

Rio de Janeiro Santos Dumont

Wed 12/10

1:45 pm-9:14 am

2 stops21h 29m

$834

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Tue 1/20

5:25 pm-2:10 pm

2 stops18h 45m

Rio de Janeiro Santos Dumont

Wed 2/18

2:00 pm-6:35 am

1 stop18h 35m

$866

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Mon 2/16

6:15 am-1:15 pm

2 stops29h 00m

Rio de Janeiro Santos Dumont

Sat 2/28

8:05 pm-11:48 pm

3 stops29h 43m

$870

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Thu 12/11

9:59 am-1:15 pm

2 stops25h 16m

Rio de Janeiro Santos Dumont

Sat 1/24

9:20 pm-6:35 am

2 stops35h 15m

$949

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/25

Showing 1-10 of 19 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 26, 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.

  • 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

Browse thousands of different options on Cheapflights for your next trip

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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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