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

$381 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on LATAM Airlines and GOL, with prices starting from $485 and $507, respectively.

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 $389). 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.

How far in advance should I book a flight from Rio de Janeiro Santos Dumont Airport to Washington, D.C. Dulles Intl Airport?

To save on the cost of your flight from Rio de Janeiro Santos Dumont Airport to Washington, D.C. Dulles Intl Airport, book at least 57 days before your planned departure. Booking around this time can save you about 73% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $624 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,009.

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

Due to multiple factors, expect to potentially pay more when booking in January. For low rates, October can be a great choice for travel to Washington, D.C. Dulles Intl Airport. Flights to Washington, D.C. Dulles Intl Airport from Rio de Janeiro Santos Dumont Airport in October are about $777 on average during October, but can be found for as low as $485.

What is the cheapest time of day to fly from SDU to IAD?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Rio de Janeiro Santos Dumont Airport to Washington, D.C. Dulles Intl Airport as you normally would.

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.

$300+ Flights from Rio de Janeiro Santos Dumont Airport, Brazil to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Santos Dumont to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$727 (United)
One-way from	$300 (Kiwi.com)
Popular in	January
Cheapest in	October
Average price	$771

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. 6% potential increase in price ($57 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($13 potential savings vs. average RT price).

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Average for round-trip flights in February 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 February 20, 2025.

Sun 6/81:00 pmSDU - IAD

1 stop18h 25mMultiple Airlines

Sat 9/65:20 pmIAD - SDU

2 stops16h 45mMultiple Airlines

Deal found 2/19

$727

Mon 3/101:00 pmSDU - IAD

1 stop18h 40mUnited Airlines

Mon 3/1712:55 pmIAD - SDU

2 stops25h 55mUnited Airlines

Deal found 2/20

$730

Wed 6/46:00 amSDU - IAD

2 stops33h 00mGOL

Mon 6/163:25 pmIAD - SDU

2 stops27h 10mGOL

Deal found 2/19

$834

Tue 3/257:50 amSDU - IAD

2 stops32h 23mAir Canada

Mon 3/312:45 pmIAD - SDU

2 stops24h 05mAir Canada

Deal found 2/19

$887

Fri 3/78:20 pmSDU - IAD

2 stops17h 02mLATAM Airlines

Tue 3/1812:15 pmIAD - SDU

2 stops24h 45mLATAM Airlines

Deal found 2/20

$1,100

Sat 3/224:30 pmSDU - IAD

3 stops20h 02mAzul

Sat 4/512:45 pmIAD - SDU

2 stops22h 40mAzul

Deal found 2/19

$2,068

Thu 3/68:20 pmSDU - IAD

2 stops21h 38mDelta

Fri 3/141:48 pmIAD - SDU

2 stops18h 22mDelta

Deal found 2/20

$3,612

Best flights from Santos Dumont to Dulles Intl
Discover carefully curated flight deals from Santos Dumont to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 20, 2025.

Sun 6/81:00 pmSDU - IAD

1 stop18h 25mMultiple Airlines

Sat 9/65:20 pmIAD - SDU

2 stops16h 45mMultiple Airlines

Deal found 2/19

$727

Mon 3/101:00 pmSDU - IAD

1 stop18h 40mUnited Airlines

Sat 3/155:10 pmIAD - SDU

2 stops21h 40mUnited Airlines

Deal found 2/20

$730

Wed 6/46:00 amSDU - IAD

2 stops33h 00mGOL

Mon 6/163:25 pmIAD - SDU

2 stops27h 10mGOL

Deal found 2/19

$834

Wed 6/47:55 amSDU - IAD

2 stops28h 19mAir Canada

Mon 6/1610:30 amIAD - SDU

2 stops28h 20mAir Canada

Deal found 2/19

$1,032

Fri 3/78:20 pmSDU - IAD

2 stops17h 02mLATAM Airlines

Tue 3/1812:15 pmIAD - SDU

2 stops24h 45mLATAM Airlines

Deal found 2/20

$1,100

Sat 3/224:30 pmSDU - IAD

3 stops20h 02mAzul

Sat 4/512:45 pmIAD - SDU

2 stops22h 40mAzul

Deal found 2/19

$2,068

Thu 3/68:20 pmSDU - IAD

2 stops21h 38mDelta

Fri 3/141:48 pmIAD - SDU

2 stops18h 22mDelta

Deal found 2/20

$3,612

Last-minute flights from Santos Dumont to Dulles Intl
Discover last-minute flight deals from Santos Dumont to Dulles Intl. Data last updated February 20, 2025 and is based on user searches.

Thu 3/68:20 pmSDU - IAD

2 stops21h 38mDelta

Fri 3/141:48 pmIAD - SDU

2 stops18h 22mDelta

Deal found 2/20

$3,612

Fri 3/78:20 pmSDU - IAD

2 stops17h 02mLATAM Airlines

Tue 3/1812:15 pmIAD - SDU

2 stops24h 45mLATAM Airlines

Deal found 2/20

$1,100

Mon 3/101:00 pmSDU - IAD

1 stop18h 40mUnited Airlines

Mon 3/1712:55 pmIAD - SDU

2 stops25h 55mUnited Airlines

Deal found 2/20

$730

Sat 3/221:05 pmSDU - IAD

1 stop18h 35mMultiple Airlines

Sat 4/510:35 pmIAD - SDU

1 stop16h 15mMultiple Airlines

Deal found 2/19

$909

Sat 3/224:30 pmSDU - IAD

3 stops20h 02mAzul

Sat 4/512:45 pmIAD - SDU

2 stops22h 40mAzul

Deal found 2/19

$2,068

Tue 3/257:50 amSDU - IAD

2 stops32h 23mAir Canada

Mon 3/312:45 pmIAD - SDU

2 stops24h 05mAir Canada

Deal found 2/19

$887

One-way flights from Santos Dumont to Dulles Intl
Search for one-way flight options from Santos Dumont to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated February 20, 2025.

Fri 3/79:35 amSDU - IAD

2 stops26h 57mMultiple Airlines

Deal found 2/20

$300

Mon 3/101:00 pmSDU - IAD

2 stops27h 56mUnited Airlines

Deal found 2/20

$381

Wed 4/234:40 pmSDU - IAD

2 stops21h 21mLATAM Airlines

Deal found 2/20

$485

Mon 3/35:40 pmSDU - IAD

2 stops45h 20mGOL

Deal found 2/20

$507

Wed 4/235:05 pmSDU - IAD

2 stops19h 22mAzul

Deal found 2/19

$512

Tue 3/112:40 pmSDU - IAD

2 stops23h 30mDelta

Deal found 2/20

$635

Sun 3/168:30 amSDU - IAD

2 stops31h 43mAir Canada

Deal found 2/20

$835

Find flights from Santos Dumont to Dulles Intl within your budget

Fly from

Fly to

Route

Depart

Return

Price

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Sun 6/8

1:00 pm-6:25 am

1 stop18h 25m

Washington, D.C. Dulles Intl

Sat 9/6

5:20 pm-11:05 am

2 stops16h 45m

$727

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Mon 3/10

1:00 pm-6:40 am

1 stop18h 40m

Washington, D.C. Dulles Intl

Sat 3/15

5:10 pm-3:50 pm

2 stops21h 40m

$730

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Wed 6/4

6:00 am-2:00 pm

2 stops33h 00m

Washington, D.C. Dulles Intl

Mon 6/16

3:25 pm-7:35 pm

2 stops27h 10m

$834

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Wed 6/4

7:55 am-11:14 am

2 stops28h 19m

Washington, D.C. Dulles Intl

Mon 6/16

10:30 am-3:50 pm

2 stops28h 20m

$1,032

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Fri 3/7

8:20 pm-11:22 am

2 stops17h 02m

Washington, D.C. Dulles Intl

Tue 3/18

12:15 pm-2:00 pm

2 stops24h 45m

$1,100

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Sat 3/22

4:30 pm-11:32 am

3 stops20h 02m

Washington, D.C. Dulles Intl

Sat 4/5

12:45 pm-12:25 pm

2 stops22h 40m

$2,068

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Thu 3/6

8:20 pm-3:58 pm

2 stops21h 38m

Washington, D.C. Dulles Intl

Fri 3/14

1:48 pm-9:10 am

2 stops18h 22m

$3,612

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Fri 3/7

9:35 am-10:32 am

2 stops26h 57m

$300

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Mon 3/10

1:00 pm-3:56 pm

2 stops27h 56m

$381

Rio de JaneiroWashington, D.C.

SDU - IAD

SDUIAD

Rio de Janeiro Santos Dumont

Wed 4/23

4:40 pm-1:01 pm

2 stops21h 21m

$485

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 14 results

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.

Travel insights for flights from Santos Dumont to Dulles Intl

Get recent, data-driven insights about flights from Santos Dumont to Dulles Intl including ideal travel times, pricing trends, and more.

Rainfall in Dulles Intl 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

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

Azul

8.0

Very good

792 reviews

Reviews

1 / 13

10.0

Excellent

Aidan,Dec 2024

VCP - VIX

Very good we were taken care of in all aspects when traveling with our 1 year old. Would recommend Azul and I will travel with them again.

Azul

8.0

Very good

792 reviews

Azul

8.0

Very good

792 reviews

Reviews

1 / 13

10.0

Excellent

Aidan,Dec 2024

VCP - VIX

Very good we were taken care of in all aspects when traveling with our 1 year old. Would recommend Azul and I will travel with them again.

Delta

8.0

Very good

8,219 reviews

Azul

8.0

Very good

792 reviews

Reviews

1 / 13

10.0

Excellent

Aidan,Dec 2024

VCP - VIX

Very good we were taken care of in all aspects when traveling with our 1 year old. Would recommend Azul and I will travel with them again.

LATAM Airlines

7.5

Good

1,795 reviews

Azul

8.0

Very good

792 reviews

Reviews

1 / 13

10.0

Excellent

Aidan,Dec 2024

VCP - VIX

Very good we were taken care of in all aspects when traveling with our 1 year old. Would recommend Azul and I will travel with them again.

United Airlines

7.4

Good

8,765 reviews

Azul

8.0

Very good

792 reviews

Reviews

1 / 13

10.0

Excellent

Aidan,Dec 2024

VCP - VIX

Very good we were taken care of in all aspects when traveling with our 1 year old. Would recommend Azul and I will travel with them again.

GOL

7.3

Good

1,065 reviews

Azul

8.0

Very good

792 reviews

Reviews

1 / 13

10.0

Excellent

Aidan,Dec 2024

VCP - VIX

Very good we were taken care of in all aspects when traveling with our 1 year old. Would recommend Azul and I will travel with them again.

Related info for your journey

What are the cheapest airlines to fly from Rio de Janeiro Santos Dumont Airport to Washington, D.C. Dulles Intl Airport one-way?
$381 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on LATAM Airlines and GOL, with prices starting from $485 and $507, 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 $389). 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

Arlington

Alexandria

Fairfax

Springfield

Rockville

Tysons

Gaithersburg

Silver Spring

Fredericksburg

Linthicum Heights

Laurel

Falls Church

Woodbridge

Sterling

Easton

Herndon

Bowie

Reston

National Harbor

Oxon Hill

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$300+ 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 3/7. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Santos Dumont to Dulles Intl with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Santos Dumont to Dulles Intl

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Round-trip from

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Average price

Find flight deals from Santos Dumont to Dulles Intl

Cheapest flights from Santos Dumont to Dulles IntlExplore 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 February 20, 2025.

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 February 20, 2025.

Find flights from Santos Dumont to Dulles Intl within your budget

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.

Travel insights for flights from Santos Dumont to Dulles Intl

Get recent, data-driven insights about flights from Santos Dumont to Dulles Intl including ideal travel times, pricing trends, and more.

Rainfall in Dulles Intl by month

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

Temperature in Dulles Intl by month

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

Reviews of airlines servicing Dulles Intl

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?

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

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Santos Dumont to Dulles Intl

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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 February 20, 2025.