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Dulles Intl

$291+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
SDU — IAD
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
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 junio 12, 2025.

Round-trip from

$522
(LATAM Airlines)

One-way from

$291
(Delta)

Popular in

June

Cheapest in

October

Average price

$806
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. 9% potential increase in price ($75 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in June 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 junio 12, 2025.

This LATAM Airlines deal was found by Cheapflights users on 6/10. 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.
lun. 9/292:20 pmSDU - IAD
2 stops22h 30mLATAM Airlines
mié. 10/155:10 pmIAD - SDU
2 stops20h 50mLATAM Airlines
Deal found 6/10$522
This Mytrip deal was found by Cheapflights users on 6/9. 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.
mié. 7/3011:25 amSDU - IAD
3 stops31h 40mMultiple Airlines
mié. 8/65:45 amIAD - SDU
3 stops31h 35mMultiple Airlines
Deal found 6/9$665
This United Airlines deal was found by Cheapflights users on 6/11. 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.
mié. 9/2411:25 amSDU - IAD
1 stop20h 00mUnited Airlines
mié. 10/810:35 pmIAD - SDU
1 stop14h 45mUnited Airlines
Deal found 6/11$710
This Air Canada deal was found by Cheapflights users on 6/11. 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.
mié. 9/247:55 amSDU - IAD
2 stops38h 10mAir Canada
mié. 10/89:45 amIAD - SDU
2 stops27h 35mAir Canada
Deal found 6/11$715
This Gotogate deal was found by Cheapflights users on 6/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 7/278:30 pmSDU - IAD
2 stops42h 30mGOL
dom. 8/33:25 pmIAD - SDU
2 stops18h 15mGOL
Deal found 6/12$819
This Azul deal was found by Cheapflights users on 6/12. 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 Azul is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/185:25 pmSDU - IAD
2 stops22h 03mAzul
lun. 8/255:30 pmIAD - SDU
2 stops22h 15mAzul
Deal found 6/12$1,329

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 junio 12, 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

lun. 9/29

2:20 pm-11:50 am

2 stops22h 30m

Washington, D.C. Dulles Intl

mié. 10/15

5:10 pm-3:00 pm

2 stops20h 50m

$522

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

mié. 7/30

11:25 am-6:05 pm

3 stops31h 40m

Washington, D.C. Dulles Intl

mié. 8/6

5:45 am-2:20 pm

3 stops31h 35m

$665

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

mié. 9/24

11:25 am-6:25 am

1 stop20h 00m

Washington, D.C. Dulles Intl

mié. 10/8

10:35 pm-2:20 pm

1 stop14h 45m

$710

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

mié. 9/24

7:55 am-9:05 pm

2 stops38h 10m

Washington, D.C. Dulles Intl

mié. 10/8

9:45 am-2:20 pm

2 stops27h 35m

$715

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

dom. 7/27

8:30 pm-2:00 pm

2 stops42h 30m

Washington, D.C. Dulles Intl

dom. 8/3

3:25 pm-10:40 am

2 stops18h 15m

$819

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

lun. 8/18

5:25 pm-2:28 pm

2 stops22h 03m

Washington, D.C. Dulles Intl

lun. 8/25

5:30 pm-4:45 pm

2 stops22h 15m

$1,329

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

lun. 9/15

8:20 pm-1:57 pm

2 stops18h 37m

$291

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

mar. 10/14

2:20 pm-4:31 pm

2 stops27h 11m

$296

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

dom. 9/14

3:00 pm-6:25 am

1 stop16h 25m

$333

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

sáb. 11/22

8:30 pm-1:00 pm

2 stops42h 30m

$372

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 13 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.

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 junio 12, 2025.
Azul
8.0
Very good
781 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

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
781 reviews
Azul
8.0
Very good
781 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

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
7,946 reviews
Azul
8.0
Very good
781 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

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
1,785 reviews
Azul
8.0
Very good
781 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

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
8,790 reviews
Azul
8.0
Very good
781 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

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
1,073 reviews
Azul
8.0
Very good
781 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

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?

    $291 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on LATAM Airlines and United Airlines, with prices starting from $296 and $333, 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 July is currently the most expensive (average of $349). 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
Tysons
Silver Spring
Linthicum Heights
Fredericksburg
Gaithersburg
Fairfax
Falls Church
Easton
Herndon
Towson
Sterling
Bowie
Rockville
Reston
National Harbor
Springfield
Manassas

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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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