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Santos Dumont

$333+ Cheap flights from Dulles Intl (IAD) 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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SDU
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap flight deals from Dulles Intl to Santos Dumont

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) 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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$617
(CheapOair)

One-way from

$333
(Trip.com)

Popular in

December

Cheapest in

October

Average price

$749
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Rio de Janeiro Santos Dumont flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Rio de Janeiro Santos Dumont flights.
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From Washington, D.C. Dulles Intl to Rio de Janeiro Santos Dumont
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One-way flight from Washington, D.C. Dulles Intl to Rio de Janeiro Santos Dumont
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Highest demand for flights based on searches. 8% potential increase in price ($69 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Dulles Intl to Santos Dumont

Cheapest flights from Dulles Intl to Santos Dumont
Explore the most affordable flight options available from Dulles Intl to Santos Dumont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This LATAM Airlines deal was found by Cheapflights users on 3/27. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2812:30 pmIAD - SDU
2 stops24h 10mLATAM Airlines
Sun 11/22:25 pmSDU - IAD
2 stops30h 23mLATAM Airlines
Deal found 3/27$588
This Air Canada deal was found by Cheapflights users on 3/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/212:25 pmIAD - SDU
2 stops24h 25mAir Canada
Tue 5/271:05 pmSDU - IAD
2 stops25h 36mAir Canada
Deal found 3/26$630
This United Airlines deal was found by Cheapflights users on 3/26. 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.
Sun 5/1110:35 pmIAD - SDU
1 stop16h 15mUnited Airlines
Sun 5/181:05 pmSDU - IAD
1 stop18h 20mUnited Airlines
Deal found 3/26$713
This KAYAK deal was found by Cheapflights users on 3/27. 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.
Sun 9/283:25 pmIAD - SDU
2 stops18h 15mGOL
Sun 10/53:05 pmSDU - IAD
2 stops47h 55mGOL
Deal found 3/27$714
This United deal was found by Cheapflights users on 3/27. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2310:35 pmIAD - SDU
1 stop16h 15mMultiple Airlines
Tue 4/298:00 amSDU - IAD
1 stop23h 25mMultiple Airlines
Deal found 3/27$760
This FlightHub deal was found by Cheapflights users on 3/27. 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 3/315:22 pmIAD - SDU
2 stops18h 03mAzul
Wed 4/27:45 amSDU - IAD
2 stops33h 02mAzul
Deal found 3/27$1,269

Cheapflights Fare Finder

Customize your flight search to find flights from Dulles Intl 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 March 28, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Rio de Janeiro Santos Dumont Airport that are best for you.

Fly from

Dulles Intl

Fly to

Santos Dumont

Route

Depart

Return

Price

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Wed 5/21

2:25 pm-3:50 pm

2 stops24h 25m

Rio de Janeiro Santos Dumont

Tue 5/27

1:05 pm-1:41 pm

2 stops25h 36m

$630

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Sun 5/11

10:35 pm-3:50 pm

1 stop16h 15m

Rio de Janeiro Santos Dumont

Sun 5/18

1:05 pm-6:25 am

1 stop18h 20m

$713

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Mon 5/12

12:25 pm-9:35 am

2 stops20h 10m

Rio de Janeiro Santos Dumont

Mon 5/19

9:35 am-11:45 am

2 stops27h 10m

$750

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Wed 4/23

10:35 pm-3:50 pm

1 stop16h 15m

Rio de Janeiro Santos Dumont

Tue 4/29

8:00 am-6:25 am

1 stop23h 25m

$760

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Wed 4/9

3:25 pm-3:05 pm

3 stops22h 40m

Rio de Janeiro Santos Dumont

Sun 4/20

11:35 am-2:00 pm

3 stops27h 25m

$1,108

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Tue 7/1

8:20 am-9:15 am

2 stops23h 55m

Rio de Janeiro Santos Dumont

Tue 7/8

5:05 pm-2:45 pm

2 stops22h 40m

$1,370

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Sun 5/11

5:26 pm-12:25 pm

2 stops17h 59m

$333

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Mon 9/1

3:25 pm-10:40 am

2 stops18h 15m

$343

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Thu 9/18

12:30 pm-9:35 am

2 stops20h 05m

$458

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Mon 5/5

10:35 pm-3:50 pm

1 stop16h 15m

$519

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Compare providers for flights from Dulles Intl 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 Dulles Intl to Santos Dumont in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice 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 Washington, D.C. Dulles Intl Airport-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 Washington, D.C. Dulles Intl Airport-Rio de Janeiro Santos Dumont Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-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 Washington, D.C. Dulles Intl Airport-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 Washington, D.C. Dulles Intl Airport-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 Dulles Intl to Santos Dumont

Have a flexible travel schedule? Discover the best time to fly to Santos Dumont from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Rio de Janeiro Santos Dumont Airport

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 March 28, 2025.
To help decide which airline to fly from Washington, D.C. to Rio de Janeiro, see what other customers have to say about Azul, LATAM Airlines and United Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Azul
8.0
Very good
772 reviews

Boarding

8.1

Food

7.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

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
772 reviews
Azul
8.0
Very good
772 reviews

Boarding

8.1

Food

7.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

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
1,750 reviews
Azul
8.0
Very good
772 reviews

Boarding

8.1

Food

7.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

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
8,603 reviews
Azul
8.0
Very good
772 reviews

Boarding

8.1

Food

7.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

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
1,052 reviews
Azul
8.0
Very good
772 reviews

Boarding

8.1

Food

7.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

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.
Air Canada
7.0
Good
8,986 reviews
Azul
8.0
Very good
772 reviews

Boarding

8.1

Food

7.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

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 Dulles Intl 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 are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Rio de Janeiro Santos Dumont Airport one-way?

    One-way options have recently been found by users for as low as $343 on GOL. Other airlines that offer cheap prices include LATAM Airlines from $458 and United Airlines from $519 one-way.

  • Can I find deals for flights from Dulles Intl to Santos Dumont that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Santos Dumont flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Santos Dumont?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Santos Dumont.

  • Can I find deals for business class flights from Dulles Intl to Santos Dumont?

    Yes. Cheapflights offers flight deals from Dulles Intl 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 Dulles Intl to Santos Dumont

See prices for flight routes from nearby airports that may be better suited for you.
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