HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$320+ 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
des. 29 — gen. 51
dl. 12/29
dl. 1/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Santos Dumont to Dulles Intl 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.

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 novembre 29, 2025.

This LATAM Airlines deal was found by Cheapflights users on 11/28. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ds. 12/208:05 pmSDU - IAD
2 stops18h 08mLATAM Airlines
dg. 1/116:15 pmIAD - SDU
2 stops17h 00mLATAM Airlines
Deal found 11/28$714
This United Airlines deal was found by Cheapflights users on 11/27. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dc. 12/31:45 pmSDU - IAD
1 stop18h 50mUnited Airlines
dl. 12/810:30 pmIAD - SDU
1 stop16h 05mUnited Airlines
Deal found 11/27$859
This Air Canada deal was found by Cheapflights users on 11/28. 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.
ds. 12/65:30 pmSDU - IAD
2 stops29h 29mAir Canada
dt. 1/209:45 amIAD - SDU
2 stops26h 25mAir Canada
Deal found 11/28$875
This United Airlines deal was found by Cheapflights users on 11/27. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dc. 12/31:45 pmSDU - IAD
1 stop18h 50mUnited Airlines
dt. 12/910:30 pmIAD - SDU
1 stop16h 10mUnited Airlines
Deal found 11/27$1,025
This Air Canada deal was found by Cheapflights users on 11/28. 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.
dl. 12/1511:20 amSDU - IAD
2 stops30h 26mAir Canada
dt. 1/139:45 amIAD - SDU
2 stops26h 25mAir Canada
Deal found 11/28$1,196
This 123 Milhas deal was found by Cheapflights users on 11/27. 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 123 Milhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dc. 12/36:20 amSDU - IAD
2 stops17h 05mAzul
dl. 12/812:42 pmIAD - SDU
2 stops22h 23mAzul
Deal found 11/27$1,293
This 123 Milhas deal was found by Cheapflights users on 11/28. 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.
dc. 12/248:05 pmSDU - IAD
2 stops18h 08mLATAM Airlines
dc. 12/315:06 pmIAD - SDU
2 stops18h 09mLATAM Airlines
Deal found 11/28$1,356
This Azul deal was found by Cheapflights users on 11/27. 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 Azul is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ds. 12/66:20 amSDU - IAD
2 stops17h 05mAzul
dt. 1/205:15 pmIAD - SDU
2 stops22h 55mAzul
Deal found 11/27$1,565
This Booking.com deal was found by Cheapflights users on 11/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dj. 12/186:15 amSDU - IAD
2 stops17h 01mMultiple Airlines
dv. 1/91:15 pmIAD - SDU
2 stops23h 20mMultiple Airlines
Deal found 11/28$1,593
This 123 Milhas deal was found by Cheapflights users on 11/28. 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.
dj. 12/188:05 pmSDU - IAD
2 stops17h 30mLATAM Airlines
ds. 1/105:59 pmIAD - SDU
2 stops21h 31mLATAM Airlines
Deal found 11/28$1,689
This 123 Milhas deal was found by Cheapflights users on 11/29. 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 123 Milhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dv. 12/126:20 amSDU - IAD
2 stops17h 05mAzul
dl. 1/1912:45 pmIAD - SDU
2 stops22h 40mAzul
Deal found 11/29$1,731
This Air Canada deal was found by Cheapflights users on 11/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dv. 12/1911:20 amSDU - IAD
2 stops26h 15mAir Canada
dl. 1/124:30 pmIAD - SDU
2 stops19h 40mAir Canada
Deal found 11/27$1,740

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 novembre 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$603
(Air Canada)

One-way from

$320
(Justfly.com)

Popular in

June

Cheapest in

March

Average price

$584
Provider with most accurate pricing for Rio de Janeiro (RIO)-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Rio de Janeiro (RIO)-Washington, D.C. (WAS) flights.
Search Deals
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 ($62 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
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 novembre 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

dc. 4/22

1:45 pm-7:40 pm

2 stops30h 55m

Washington, D.C. Dulles Intl

dg. 5/10

9:45 am-4:45 pm

2 stops30h 00m

$603

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

dj. 4/23

1:45 pm-7:40 pm

2 stops30h 55m

Washington, D.C. Dulles Intl

dt. 5/5

10:05 pm-4:45 pm

2 stops41h 40m

$603

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

dj. 4/23

1:45 pm-7:40 pm

2 stops30h 55m

Washington, D.C. Dulles Intl

dj. 5/7

4:05 pm-4:45 pm

2 stops23h 40m

$609

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

dc. 4/22

1:45 pm-7:40 pm

2 stops30h 55m

Washington, D.C. Dulles Intl

dl. 5/4

4:05 pm-4:45 pm

2 stops23h 40m

$609

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

dj. 2/26

1:45 pm-9:23 pm

2 stops33h 38m

Washington, D.C. Dulles Intl

dl. 3/2

5:34 pm-4:40 pm

2 stops21h 06m

$665

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

dc. 5/6

1:45 pm-6:56 pm

2 stops30h 11m

Washington, D.C. Dulles Intl

dg. 5/17

9:45 am-4:45 pm

2 stops30h 00m

$677

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

dc. 5/6

1:45 pm-4:20 pm

2 stops27h 35m

Washington, D.C. Dulles Intl

dc. 6/3

9:45 am-4:45 pm

2 stops30h 00m

$846

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

dt. 4/21

1:45 pm-8:30 pm

2 stops31h 45m

Washington, D.C. Dulles Intl

ds. 5/9

10:05 pm-4:45 pm

2 stops41h 40m

$854

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

dt. 4/21

1:45 pm-8:30 pm

2 stops31h 45m

Washington, D.C. Dulles Intl

dv. 5/8

9:45 am-8:15 pm

2 stops33h 30m

$854

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

dc. 2/25

1:45 pm-11:49 am

2 stops24h 04m

$349

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/28

Showing 1-10 of 20 results
1
2

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 30h 55m. There are 4811 mi between Rio de Janeiro Santos Dumont Airport and Washington, D.C. Dulles Intl Airport.

  • 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
Fredericksburg
Fairfax
Linthicum Heights
Manassas
Laurel
Towson
National Harbor
Falls Church
Bowie
Largo
McLean
Clinton

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 Santos Dumont to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Rio de Janeiro–Galeão Intl to Dulles Intl flights
Rio de Janeiro–Galeão Intl to Baltimore flights
Rio de Janeiro–Galeão Intl to Reagan-National 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.