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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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SDU
nov. 13 — nov. 201
jue. 11/13
jue. 11/20
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 octubre 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$623
(Air Canada)

One-way from

$340
(Delta)

Popular in

December

Cheapest in

October

Average price

$661
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 ($87 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in October 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 octubre 14, 2025.

This Booking.com deal was found by Cheapflights users on 10/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/108:55 amBOS - SDU
1 stop22h 30mLATAM Airlines
mar. 11/188:05 pmSDU - BOS
1 stop12h 30mLATAM Airlines
Deal found 10/13$629
This Kiwi.com deal was found by Cheapflights users on 10/12. 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.
mié. 11/261:10 pmBOS - SDU
2 stops25h 35mMultiple Airlines
mié. 12/31:45 pmSDU - BOS
1 stop18h 50mMultiple Airlines
Deal found 10/12$633
This Kiwi.com deal was found by Cheapflights users on 10/13. 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.
mar. 11/117:55 amBOS - SDU
2 stops21h 40mMultiple Airlines
mar. 11/188:05 pmSDU - BOS
1 stop12h 30mMultiple Airlines
Deal found 10/13$642
This Mytrip deal was found by Cheapflights users on 10/13. 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.
mar. 11/117:55 amBOS - SDU
2 stops21h 40mMultiple Airlines
mar. 11/255:10 pmSDU - BOS
1 stop15h 25mMultiple Airlines
Deal found 10/13$653
This Kiwi.com deal was found by Cheapflights users on 10/12. 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.
lun. 10/279:55 amBOS - SDU
1 stop20h 40mMultiple Airlines
lun. 11/101:45 pmSDU - BOS
2 stops24h 47mMultiple Airlines
Deal found 10/12$658
This Trip.com deal was found by Cheapflights users on 10/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/209:55 amBOS - SDU
1 stop20h 25mLATAM Airlines
mar. 11/48:05 pmSDU - BOS
1 stop12h 30mLATAM Airlines
Deal found 10/13$668
This Mytrip deal was found by Cheapflights users on 10/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/318:24 pmBOS - SDU
2 stops35h 51mMultiple Airlines
sáb. 11/89:20 pmSDU - BOS
2 stops35h 15mMultiple Airlines
Deal found 10/12$702
This Kiwi.com deal was found by Cheapflights users on 10/12. 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.
jue. 11/275:05 pmBOS - SDU
2 stops21h 35mMultiple Airlines
mié. 12/31:45 pmSDU - BOS
1 stop18h 50mMultiple Airlines
Deal found 10/12$707
This Kissandfly.com deal was found by Cheapflights users on 10/13. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/309:55 amBOS - SDU
1 stop22h 30mLATAM Airlines
mié. 11/122:00 pmSDU - BOS
2 stops35h 02mLATAM Airlines
Deal found 10/13$710
This KAYAK deal was found by Cheapflights users on 10/12. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/2412:10 pmBOS - SDU
2 stops24h 25mLATAM Airlines
mié. 12/31:40 pmSDU - BOS
1 stop18h 55mLATAM Airlines
Deal found 10/12$713
This Kiwi.com deal was found by Cheapflights users on 10/12. 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.
mié. 11/265:00 pmBOS - SDU
2 stops21h 45mMultiple Airlines
jue. 12/41:45 pmSDU - BOS
1 stop18h 50mMultiple Airlines
Deal found 10/12$717

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 octubre 14, 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

mar. 3/31

6:40 pm-2:20 pm

2 stops18h 40m

Rio de Janeiro Santos Dumont

mié. 4/8

11:25 am-7:12 pm

2 stops32h 47m

$623

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

dom. 3/8

10:15 am-2:20 pm

2 stops27h 05m

Rio de Janeiro Santos Dumont

jue. 3/19

11:25 am-10:37 pm

2 stops36h 12m

$630

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

lun. 11/24

1:42 pm-2:35 pm

2 stops22h 53m

Rio de Janeiro Santos Dumont

mié. 12/3

8:45 am-6:35 am

2 stops23h 50m

$713

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

lun. 11/10

6:16 am-10:10 pm

3 stops37h 54m

Rio de Janeiro Santos Dumont

mar. 11/18

10:00 am-5:31 pm

3 stops33h 31m

$734

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

mar. 3/10

3:05 pm-7:40 am

2 stops15h 35m

Rio de Janeiro Santos Dumont

mar. 3/17

8:05 pm-7:35 am

1 stop12h 30m

$760

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

mar. 10/28

8:41 am-7:35 am

2 stops21h 54m

Rio de Janeiro Santos Dumont

dom. 11/9

8:05 pm-6:35 am

1 stop12h 30m

$771

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

mié. 11/19

8:55 am-9:25 am

1 stop22h 30m

Rio de Janeiro Santos Dumont

jue. 12/4

8:05 pm-6:35 am

1 stop12h 30m

$802

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

mié. 11/19

8:55 am-9:25 am

1 stop22h 30m

Rio de Janeiro Santos Dumont

mié. 12/3

8:05 pm-6:35 am

1 stop12h 30m

$802

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

mié. 3/4

1:08 pm-2:10 pm

2 stops23h 02m

Rio de Janeiro Santos Dumont

dom. 3/15

8:25 pm-11:09 pm

2 stops27h 44m

$804

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

mié. 2/18

5:09 pm-10:25 pm

2 stops27h 16m

Rio de Janeiro Santos Dumont

dom. 3/15

6:00 am-11:36 am

2 stops30h 36m

$817

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/12

Showing 1-10 of 21 results
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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 October.
ProviderPrice AccuracyTrust Score*
eDreamsPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Rio de Janeiro Santos Dumont Airport flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 octubre 14, 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?

    Air Canada and LATAM Airlines can get you from Boston to Rio de Janeiro Santos Dumont Airport in just under 18h 40m. Your travel time can differ by up to 4h 13m. 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.
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