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Santos Dumont

$307+ 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 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SDU
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
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 December 23, 2025.

This oojo deal was found by Cheapflights users on 12/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:41 pmBOS - SDU
2 stops18h 29mMultiple Airlines
Sat 1/106:10 amSDU - BOS
2 stops28h 48mMultiple Airlines
Deal found 12/22$1,451
This FlightHub deal was found by Cheapflights users on 12/20. 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.
Thu 12/258:55 amBOS - SDU
1 stop20h 20mLATAM Airlines
Thu 1/16:45 amSDU - BOS
1 stop25h 50mLATAM Airlines
Deal found 12/20$1,455
This Expedia deal was found by Cheapflights users on 12/22. 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 12/268:55 amBOS - SDU
1 stop22h 40mLATAM Airlines
Sun 12/282:00 pmSDU - BOS
1 stop18h 35mLATAM Airlines
Deal found 12/22$1,546
This oojo deal was found by Cheapflights users on 12/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/227:04 pmBOS - SDU
2 stops36h 06mMultiple Airlines
Mon 12/296:50 pmSDU - BOS
2 stops28h 58mMultiple Airlines
Deal found 12/21$1,630
This GOL deal was found by Cheapflights users on 12/21. 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.
Tue 12/306:19 pmBOS - SDU
2 stops26h 06mGOL
Thu 1/86:00 amSDU - BOS
2 stops16h 51mGOL
Deal found 12/21$1,732
This oojo deal was found by Cheapflights users on 12/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/309:12 pmBOS - SDU
2 stops33h 58mMultiple Airlines
Sat 1/37:30 pmSDU - BOS
2 stops40h 30mMultiple Airlines
Deal found 12/21$1,784
This CheapOair deal was found by Cheapflights users on 12/22. 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.
Thu 12/258:55 amBOS - SDU
1 stop22h 30mMultiple Airlines
Sat 1/310:05 amSDU - BOS
2 stops25h 55mMultiple Airlines
Deal found 12/22$2,018
This Travelocity deal was found by Cheapflights users on 12/21. 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.
Tue 12/307:54 pmBOS - SDU
2 stops35h 31mLATAM Airlines
Thu 1/88:05 pmSDU - BOS
1 stop12h 30mLATAM Airlines
Deal found 12/21$2,041

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 December 23, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$605
(Booking.com)

One-way from

$307
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$1,119
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.
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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 ($55 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 23, 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

Mon 3/2

8:55 am-9:25 am

1 stop22h 30m

Rio de Janeiro Santos Dumont

Tue 3/31

5:10 pm-7:35 am

1 stop15h 25m

$628

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Fri 3/6

8:55 am-9:35 am

1 stop22h 40m

Rio de Janeiro Santos Dumont

Sat 3/14

8:05 pm-11:17 am

2 stops16h 12m

$644

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Fri 3/6

8:55 am-9:35 am

1 stop22h 40m

Rio de Janeiro Santos Dumont

Sat 3/14

9:20 pm-7:35 am

2 stops35h 15m

$653

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Sun 3/8

6:40 pm-4:40 pm

2 stops21h 00m

Rio de Janeiro Santos Dumont

Sun 3/22

5:10 pm-7:35 am

1 stop15h 25m

$664

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Fri 4/17

9:55 am-8:35 am

1 stop21h 40m

Rio de Janeiro Santos Dumont

Mon 4/27

8:20 pm-11:30 pm

2 stops28h 10m

$681

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Fri 3/27

9:55 am-9:35 am

1 stop22h 40m

Rio de Janeiro Santos Dumont

Sun 4/5

8:20 pm-11:33 pm

2 stops28h 13m

$681

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Mon 3/2

6:10 pm-10:25 pm

2 stops26h 15m

Rio de Janeiro Santos Dumont

Tue 3/31

8:15 am-1:55 pm

3 stops30h 40m

$682

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Tue 2/10

3:43 pm-1:00 pm

2 stops19h 17m

Rio de Janeiro Santos Dumont

Thu 2/19

3:10 pm-6:35 am

2 stops17h 25m

$704

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Wed 3/4

5:05 pm-1:15 pm

2 stops18h 10m

Rio de Janeiro Santos Dumont

Tue 3/10

8:05 pm-7:35 am

1 stop12h 30m

$707

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Wed 4/15

9:55 am-8:35 am

1 stop21h 40m

Rio de Janeiro Santos Dumont

Sun 4/26

8:15 pm-11:16 am

2 stops16h 01m

$713

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 20 results
1
2

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 December.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
OvagoPrice Accuracy2 starsTrust Score*2 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 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 December 23, 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?

    LATAM Airlines can get you from Boston to Rio de Janeiro Santos Dumont Airport in just under 22h 30m. 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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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
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