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Dulles Intl

$321+ 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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
SDU — IAD
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
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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 November 13, 2025.

This United Airlines deal was found by Cheapflights users on 11/11. 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 11/261:45 pmSDU - IAD
2 stops30h 42mUnited Airlines
Wed 12/108:20 amIAD - SDU
2 stops30h 20mUnited Airlines
Deal found 11/11$946
This United Airlines deal was found by Cheapflights users on 11/11. 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 12/91:45 pmSDU - IAD
1 stop18h 50mUnited Airlines
Sun 12/1410:30 pmIAD - SDU
1 stop13h 35mUnited Airlines
Deal found 11/11$1,128
This Expedia deal was found by Cheapflights users on 11/11. 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.
Mon 11/172:30 pmSDU - IAD
2 stops23h 01mMultiple Airlines
Sun 11/239:00 amIAD - SDU
2 stops29h 40mMultiple Airlines
Deal found 11/11$1,195
This Air Canada deal was found by Cheapflights users on 11/11. 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.
Sat 12/65:30 pmSDU - IAD
2 stops29h 29mAir Canada
Tue 1/209:45 amIAD - SDU
2 stops26h 25mAir Canada
Deal found 11/11$1,203
This MaxMilhas deal was found by Cheapflights users on 11/12. 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 MaxMilhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:20 amSDU - IAD
2 stops17h 05mAzul
Tue 1/205:15 pmIAD - SDU
2 stops17h 25mAzul
Deal found 11/12$1,587
This United Airlines deal was found by Cheapflights users on 11/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/282:50 pmSDU - IAD
1 stop17h 45mUnited Airlines
Sun 1/410:30 pmIAD - SDU
1 stop13h 35mUnited Airlines
Deal found 11/13$1,598
This Vliegwinkel deal was found by Cheapflights users on 11/11. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/167:25 pmSDU - IAD
2 stops18h 03mAzul
Thu 11/205:25 pmIAD - SDU
2 stops17h 35mAzul
Deal found 11/11$1,808
This MaxMilhas deal was found by Cheapflights users on 11/11. 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 MaxMilhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:15 amSDU - IAD
2 stops17h 01mAzul
Sat 1/312:35 pmIAD - SDU
2 stops24h 00mAzul
Deal found 11/11$1,872
This Flightnetwork deal was found by Cheapflights users on 11/11. 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.
Mon 12/81:45 pmSDU - IAD
2 stops23h 38mAir Canada
Mon 12/159:45 amIAD - SDU
2 stops26h 25mAir Canada
Deal found 11/11$2,102

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 November 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$603
(Air Canada)

One-way from

$321
(Justfly.com)

Popular in

June

Cheapest in

March

Average price

$586
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
Search Deals
One-way flight from Rio de Janeiro Santos Dumont to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($61 potential increase over avg. RT price).
Search Deals
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 November 2025
Search Deals

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 November 13, 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

Thu 5/7

1:45 pm-11:43 am

2 stops22h 58m

Washington, D.C. Dulles Intl

Sun 5/17

10:30 pm-4:45 pm

1 stop17h 15m

$667

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Wed 4/29

1:45 pm-11:16 am

2 stops22h 31m

Washington, D.C. Dulles Intl

Mon 5/11

3:30 pm-4:45 pm

2 stops24h 15m

$683

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Tue 4/28

8:20 pm-11:51 am

2 stops16h 31m

Washington, D.C. Dulles Intl

Mon 5/11

6:00 am-1:40 pm

2 stops30h 40m

$716

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Thu 5/7

1:45 pm-4:01 pm

2 stops27h 16m

Washington, D.C. Dulles Intl

Wed 5/20

10:30 pm-4:45 pm

1 stop17h 15m

$737

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Sun 5/3

2:50 pm-10:36 pm

2 stops32h 46m

Washington, D.C. Dulles Intl

Sun 5/17

10:30 pm-4:45 pm

1 stop17h 15m

$737

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Sun 5/3

2:50 pm-10:36 pm

2 stops32h 46m

Washington, D.C. Dulles Intl

Tue 5/19

10:07 pm-4:45 pm

2 stops41h 38m

$807

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Sun 5/3

2:50 pm-11:51 pm

2 stops34h 01m

Washington, D.C. Dulles Intl

Wed 5/20

3:30 pm-4:45 pm

2 stops24h 15m

$807

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Mon 5/4

1:45 pm-6:56 pm

2 stops30h 11m

Washington, D.C. Dulles Intl

Mon 5/18

4:05 pm-4:45 pm

2 stops23h 40m

$854

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Mon 5/4

1:45 pm-6:56 pm

2 stops30h 11m

Washington, D.C. Dulles Intl

Thu 5/14

9:55 am-4:45 pm

2 stops29h 50m

$854

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Wed 5/6

1:45 pm-6:56 pm

2 stops30h 11m

Washington, D.C. Dulles Intl

Mon 5/18

9:55 am-4:45 pm

2 stops29h 50m

$854

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

Showing 1-10 of 21 results
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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.

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.

  • How long is the flight from Rio de Janeiro Santos Dumont Airport to Washington, D.C. Dulles Intl Airport?

    Departing from Rio de Janeiro Santos Dumont Airport to Washington, D.C. Dulles Intl Airport will take you 16h 31m. There are 4811 mi between Rio de Janeiro Santos Dumont Airport and Washington, D.C. Dulles Intl Airport. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Tysons
Woodbridge
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Linthicum Heights
Manassas
Laurel
Towson
National Harbor
Waldorf
Bowie
Largo
McLean

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Alternative routes for Santos Dumont to Dulles Intl

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