HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Santos Dumont

$322+ 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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SDU
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boston to Santos Dumont with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 April 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$709
(Mytrip)

One-way from

$322
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$894
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. 4% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 April 29, 2025.

This Gotogate deal was found by Cheapflights users on 4/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1310:20 amBOS - SDU
2 stops28h 30mAir Canada
Fri 6/201:00 pmSDU - BOS
2 stops21h 55mAir Canada
Deal found 4/29$699
This Mytrip deal was found by Cheapflights users on 4/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/104:50 pmBOS - SDU
3 stops28h 35mMultiple Airlines
Mon 10/206:10 amSDU - BOS
3 stops29h 20mMultiple Airlines
Deal found 4/28$709
This Justfly.com deal was found by Cheapflights users on 4/29. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/59:55 amBOS - SDU
2 stops21h 15mLATAM Airlines
Wed 6/112:20 pmSDU - BOS
1 stop18h 15mLATAM Airlines
Deal found 4/29$730
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/59:55 amBOS - SDU
1 stop22h 40mDelta
Sun 8/38:20 pmSDU - BOS
2 stops19h 35mDelta
Deal found 4/28$878
This oojo deal was found by Cheapflights users on 4/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/243:51 pmBOS - SDU
2 stops23h 59mGOL
Sat 10/256:00 amSDU - BOS
2 stops19h 19mGOL
Deal found 4/28$950
This United Airlines deal was found by Cheapflights users on 4/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/19:03 amBOS - SDU
2 stops29h 47mUnited Airlines
Sun 8/31:00 pmSDU - BOS
2 stops24h 27mUnited Airlines
Deal found 4/28$1,022

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 April 29, 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

Fri 6/13

10:20 am-3:50 pm

2 stops28h 30m

Rio de Janeiro Santos Dumont

Fri 6/20

1:00 pm-9:55 am

2 stops21h 55m

$699

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Thu 6/12

9:00 am-8:40 am

2 stops22h 40m

Rio de Janeiro Santos Dumont

Mon 6/16

1:00 pm-10:53 pm

3 stops34h 53m

$714

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Thu 6/5

9:55 am-8:10 am

2 stops21h 15m

Rio de Janeiro Santos Dumont

Wed 6/11

2:20 pm-7:35 am

1 stop18h 15m

$730

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Sat 7/5

9:55 am-9:35 am

1 stop22h 40m

Rio de Janeiro Santos Dumont

Mon 8/4

8:20 pm-2:55 pm

2 stops19h 35m

$878

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Tue 7/1

9:03 am-3:50 pm

2 stops29h 47m

Rio de Janeiro Santos Dumont

Sun 8/3

1:00 pm-12:27 pm

2 stops24h 27m

$1,022

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Thu 7/3

12:25 pm-12:25 pm

2 stops23h 00m

Rio de Janeiro Santos Dumont

Sun 8/3

9:25 am-9:04 am

2 stops24h 39m

$1,485

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Sun 7/20

9:53 am-10:40 am

2 stops23h 47m

Rio de Janeiro Santos Dumont

Thu 7/31

8:30 pm-11:41 pm

2 stops28h 11m

$1,503

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Tue 6/10

3:49 pm-10:25 pm

2 stops29h 36m

$322

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Mon 6/9

9:55 am-9:35 am

1 stop22h 40m

$439

BostonRio de Janeiro

BOS - SDU

BOSSDU

Boston Logan Intl

Mon 6/30

9:55 am-1:40 pm

1 stop26h 45m

$461

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 12 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 April.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Boston-Rio de Janeiro Santos Dumont Airport flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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 April 29, 2025.

It’s typically best to fly out from Boston to Rio de Janeiro Santos Dumont Airport in the afternoon. Doing so could potentially save you 24% on the flight price compared to flying at noon, which is usually more expensive.

Rainfall in Santos Dumont by month

Plan your trip to Santos Dumont by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Rio de Janeiro Santos Dumont Airport ranges from 1.6 - 5.1 inches per month. January is typically the wettest month, when rainfall can reach 5.1 in. July is typically the driest time to visit Rio de Janeiro Santos Dumont Airport when rainfall is around 1.6 in.

Temperature in Santos Dumont by month

Plan your trip to Santos Dumont by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Rio de Janeiro Santos Dumont Airport, use this chart to help with planning. For those seeking warmer temperatures, February is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 69.8 F).

Reviews of airlines servicing Santos Dumont

Get insights into the airlines that provide service to Santos Dumont. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Santos Dumont. Reviews last updated April 29, 2025.
See what other customers who have flown with Azul, Delta and LATAM Airlines from Boston to Rio de Janeiro have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Azul
8.0
Very good
777 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.1

Overall

8.0

Comfort

8.0

Reviews

1 / 14
2.0
Mediocre

Mike,Feb 2025

NVT - LIS

Experience was terrible. Flight cancelled. Missed connection. Replace service with EuroAtlantic airlines. Awful seats, awful food.
Azul
8.0
Very good
777 reviews
Azul
8.0
Very good
777 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.1

Overall

8.0

Comfort

8.0

Reviews

1 / 14
2.0
Mediocre

Mike,Feb 2025

NVT - LIS

Experience was terrible. Flight cancelled. Missed connection. Replace service with EuroAtlantic airlines. Awful seats, awful food.
Delta
8.0
Very good
7,929 reviews
Azul
8.0
Very good
777 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.1

Overall

8.0

Comfort

8.0

Reviews

1 / 14
2.0
Mediocre

Mike,Feb 2025

NVT - LIS

Experience was terrible. Flight cancelled. Missed connection. Replace service with EuroAtlantic airlines. Awful seats, awful food.
LATAM Airlines
7.5
Good
1,767 reviews
Azul
8.0
Very good
777 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.1

Overall

8.0

Comfort

8.0

Reviews

1 / 14
2.0
Mediocre

Mike,Feb 2025

NVT - LIS

Experience was terrible. Flight cancelled. Missed connection. Replace service with EuroAtlantic airlines. Awful seats, awful food.
United Airlines
7.4
Good
8,696 reviews
Azul
8.0
Very good
777 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.1

Overall

8.0

Comfort

8.0

Reviews

1 / 14
2.0
Mediocre

Mike,Feb 2025

NVT - LIS

Experience was terrible. Flight cancelled. Missed connection. Replace service with EuroAtlantic airlines. Awful seats, awful food.
GOL
7.3
Good
1,068 reviews
Azul
8.0
Very good
777 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.1

Overall

8.0

Comfort

8.0

Reviews

1 / 14
2.0
Mediocre

Mike,Feb 2025

NVT - LIS

Experience was terrible. Flight cancelled. Missed connection. Replace service with EuroAtlantic airlines. Awful seats, awful food.

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.

  • What are the cheapest airlines flying from Boston to Rio de Janeiro Santos Dumont Airport round-trip?

    Cheapflights users have booked flights from Boston to Rio de Janeiro Santos Dumont Airport round-trip from $717. Other airlines that can offer you cheap pricing are LATAM Airlines, from $730, and Delta, from $878.

  • What are the cheapest airlines to fly from Boston to Rio de Janeiro Santos Dumont Airport one-way?

    To fly one-way, consider booking your trip with LATAM Airlines, which is currently one of the cheapest options available, starting at $439. Delta flights start at $461 while deals on United Airlines start at $511 one-way.

  • 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.