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Dulles Intl

$369+ Cheap flights from Santos Dumont, Brazil (SDU) to Dulles Intl (IAD)

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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
SDU — IAD
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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Cheap flight deals from Santos Dumont to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Santos Dumont (SDU) to Dulles Intl (IAD). 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

$658
(Air Canada)

One-way from

$369
(GOL)

Popular in

January

Cheapest in

October

Average price

$719
Provider with most accurate pricing for Rio de Janeiro (RIO)-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for Rio de Janeiro (RIO)-Washington, D.C. (WAS) flights.
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From Rio de Janeiro Santos Dumont to Washington, D.C. Dulles Intl
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One-way flight from Rio de Janeiro Santos Dumont to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 11% potential increase in price ($95 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Santos Dumont to Dulles Intl

Cheapest flights from Santos Dumont to Dulles Intl
Explore the most affordable flight options available from Santos Dumont to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/247:55 amSDU - IAD
2 stops38h 10mAir Canada
Wed 10/81:00 pmIAD - SDU
2 stops25h 50mAir Canada
Deal found 4/28$658
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/256:00 amSDU - IAD
2 stops33h 00mGOL
Sun 6/13:25 pmIAD - SDU
2 stops27h 10mGOL
Deal found 4/28$756
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.
Wed 6/41:00 pmSDU - IAD
1 stop18h 25mUnited Airlines
Mon 6/163:35 pmIAD - SDU
2 stops23h 15mUnited Airlines
Deal found 4/28$768
This Flightnetwork 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/251:05 pmSDU - IAD
2 stops17h 30mMultiple Airlines
Wed 5/283:25 pmIAD - SDU
2 stops16h 15mMultiple Airlines
Deal found 4/28$987
This 123 Milhas 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 123 Milhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/162:25 pmSDU - IAD
2 stops23h 25mLATAM Airlines
Sat 1/36:57 pmIAD - SDU
2 stops16h 43mLATAM Airlines
Deal found 4/28$1,172
This 123 Milhas 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 123 Milhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/226:40 pmSDU - IAD
2 stops21h 05mAzul
Sat 8/28:20 amIAD - SDU
2 stops23h 30mAzul
Deal found 4/28$1,696

Cheapflights Fare Finder

Customize your flight search to find flights from Santos Dumont to Dulles Intl 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 Rio de Janeiro Santos Dumont Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Santos Dumont

Fly to

Dulles Intl

Route

Depart

Return

Price

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Wed 9/24

7:55 am-9:05 pm

2 stops38h 10m

Washington, D.C. Dulles Intl

Wed 10/8

1:00 pm-3:50 pm

2 stops25h 50m

$658

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Sun 5/25

6:00 am-2:00 pm

2 stops33h 00m

Washington, D.C. Dulles Intl

Sun 6/1

3:25 pm-7:35 pm

2 stops27h 10m

$756

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Wed 6/4

1:00 pm-6:25 am

1 stop18h 25m

Washington, D.C. Dulles Intl

Mon 6/16

3:35 pm-3:50 pm

2 stops23h 15m

$768

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Sun 5/25

1:05 pm-5:35 am

2 stops17h 30m

Washington, D.C. Dulles Intl

Wed 5/28

3:25 pm-8:40 am

2 stops16h 15m

$987

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Mon 5/12

2:00 pm-11:45 am

2 stops22h 45m

Washington, D.C. Dulles Intl

Mon 5/19

3:37 pm-9:35 am

2 stops16h 58m

$1,552

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Tue 7/22

6:40 pm-2:45 pm

2 stops21h 05m

Washington, D.C. Dulles Intl

Sat 8/2

8:20 am-8:50 am

2 stops23h 30m

$1,696

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Tue 10/14

3:05 pm-2:00 pm

2 stops47h 55m

$369

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Tue 5/13

1:05 pm-6:25 am

1 stop18h 20m

$405

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Thu 5/29

6:40 pm-5:35 am

3 stops35h 55m

$407

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Sun 6/15

2:20 pm-2:36 pm

2 stops25h 16m

$465

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Best time to book a flight from Santos Dumont to Dulles Intl

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

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated April 29, 2025.
Azul
8.0
Very good
777 reviews

Crew

8.6

Comfort

8.0

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.5

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

Crew

8.6

Comfort

8.0

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.5

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
1,766 reviews
Azul
8.0
Very good
777 reviews

Crew

8.6

Comfort

8.0

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.5

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

Crew

8.6

Comfort

8.0

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.5

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
1,066 reviews
Azul
8.0
Very good
777 reviews

Crew

8.6

Comfort

8.0

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.5

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
9,228 reviews
Azul
8.0
Very good
777 reviews

Crew

8.6

Comfort

8.0

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.5

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 Santos Dumont to Dulles Intl. 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 Rio de Janeiro Santos Dumont Airport to Washington, D.C. Dulles Intl Airport one-way?

    $369 is the cheapest one-way deal found within the past few days, from GOL. You may also be able to find cheap deals on United Airlines and LATAM Airlines, with prices starting from $405 and $465, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Santos Dumont to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Rio de Janeiro Santos Dumont Airport to Washington, D.C. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Rio de Janeiro Santos Dumont Airport to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Rio de Janeiro Santos Dumont Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $373). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Rio de Janeiro Santos Dumont Airport?

Book flights to Rio de Janeiro Santos Dumont Airport if you plan to visit one of these locations
Arlington
Alexandria
Woodbridge
Fairfax
Tysons
Springfield
Rockville
Fredericksburg
Gaithersburg
Silver Spring
Linthicum Heights
Falls Church
Laurel
Easton
Herndon
Sterling
Bowie
Towson
National Harbor
Oxon Hill

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Alternative routes for Santos Dumont to Dulles Intl

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