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Santos Dumont

$323+ Cheap flights from District of Columbia to Santos Dumont, Brazil (SDU)

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 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SDU
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Find flight deals from District of Columbia to Santos Dumont

Cheapest flights from District of Columbia to Santos Dumont
Explore the most affordable flight options available from District of Columbia to Santos Dumont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

This United Airlines deal was found by Cheapflights users on 11/1. 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 11/3010:30 pmIAD - SDU
1 stop16h 05mUnited Airlines
Tue 12/91:45 pmSDU - IAD
1 stop18h 50mUnited Airlines
Deal found 11/1$705
This United Airlines deal was found by Cheapflights users on 11/1. 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.
Mon 11/1010:30 pmIAD - SDU
1 stop16h 15mUnited Airlines
Wed 11/261:45 pmSDU - IAD
1 stop18h 50mUnited Airlines
Deal found 11/1$753
This United Airlines deal was found by Cheapflights users on 11/1. 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.
Mon 12/110:30 pmIAD - SDU
1 stop16h 05mUnited Airlines
Tue 12/91:45 pmSDU - IAD
1 stop18h 50mUnited Airlines
Deal found 11/1$755
This FlightHub deal was found by Cheapflights users on 11/2. 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.
Thu 11/135:03 pmDCA - SDU
2 stops18h 02mLATAM Airlines
Mon 11/175:10 pmSDU - DCA
2 stops18h 52mLATAM Airlines
Deal found 11/2$756
This FlightHub deal was found by Cheapflights users on 11/2. 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.
Mon 12/112:11 pmIAD - SDU
2 stops22h 24mLATAM Airlines
Tue 12/98:05 pmSDU - IAD
2 stops17h 34mLATAM Airlines
Deal found 11/2$756
This FlightHub deal was found by Cheapflights users on 11/2. 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.
Mon 12/15:03 pmDCA - SDU
2 stops18h 12mLATAM Airlines
Tue 12/95:40 pmSDU - DCA
2 stops18h 25mLATAM Airlines
Deal found 11/2$764
This United Airlines deal was found by Cheapflights users on 10/31. 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.
Mon 12/110:30 pmIAD - SDU
1 stop16h 05mUnited Airlines
Mon 12/81:45 pmSDU - IAD
2 stops28h 15mUnited Airlines
Deal found 10/31$765
This United Airlines deal was found by Cheapflights users on 11/1. 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 11/3011:00 amDCA - SDU
2 stops27h 35mUnited Airlines
Tue 12/91:45 pmSDU - DCA
2 stops23h 47mUnited Airlines
Deal found 11/1$770
This KAYAK deal was found by Cheapflights users on 11/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/62:40 pmDCA - SDU
2 stops20h 35mLATAM Airlines
Fri 11/142:00 pmSDU - DCA
2 stops22h 02mLATAM Airlines
Deal found 11/3$778
This KAYAK deal was found by Cheapflights users on 11/2. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1412:11 pmIAD - SDU
2 stops23h 09mLATAM Airlines
Mon 11/175:10 pmSDU - IAD
2 stops20h 21mLATAM Airlines
Deal found 11/2$778
This KAYAK deal was found by Cheapflights users on 11/2. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:19 pmIAD - SDU
2 stops22h 56mLATAM Airlines
Tue 12/95:40 pmSDU - IAD
2 stops19h 59mLATAM Airlines
Deal found 11/2$780
This KAYAK deal was found by Cheapflights users on 11/2. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:30 pmDCA - SDU
2 stops19h 20mLATAM Airlines
Tue 12/95:40 pmSDU - DCA
2 stops18h 25mLATAM Airlines
Deal found 11/2$785

Cheap flight deals from District of Columbia to Santos Dumont

Keep the following information in mind while searching for District of Columbia to Santos Dumont flight deals. Data was last updated November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$629
(Air Canada)

One-way from

$323
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$610
Provider with most accurate pricing for Washington, D.C. (WAS)-Rio de Janeiro (RIO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Rio de Janeiro (RIO) flights.
Search Deals
From District of Columbia to Rio de Janeiro Santos Dumont
Search Deals
One-way flight from District of Columbia to Rio de Janeiro Santos Dumont
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($91 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($22 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 District of Columbia to Santos Dumont 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 3, 2025.
Use the filters below to find and compare flights from District of Columbia to Rio de Janeiro Santos Dumont Airport that are best for you.

Fly from

District of Columbia

Fly to

Santos Dumont

Route

Depart

Return

Price

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Mon 11/10

10:30 pm-4:45 pm

1 stop16h 15m

Rio de Janeiro Santos Dumont

Wed 11/26

1:45 pm-6:35 am

1 stop18h 50m

$753

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Sun 11/30

12:40 pm-4:35 pm

2 stops25h 55m

Rio de Janeiro Santos Dumont

Tue 12/9

1:45 pm-6:35 am

1 stop18h 50m

$760

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

Mon 12/1

5:03 pm-1:15 pm

2 stops18h 12m

Rio de Janeiro Santos Dumont

Tue 12/9

5:40 pm-10:05 am

2 stops18h 25m

$764

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Mon 12/1

10:30 pm-4:35 pm

1 stop16h 05m

Rio de Janeiro Santos Dumont

Mon 12/8

1:45 pm-4:00 pm

2 stops28h 15m

$765

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

Sun 11/30

11:00 am-4:35 pm

2 stops27h 35m

Rio de Janeiro Santos Dumont

Tue 12/9

1:45 pm-11:32 am

2 stops23h 47m

$770

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

Tue 1/20

1:40 pm-9:25 am

2 stops17h 45m

Rio de Janeiro Santos Dumont

Tue 1/27

8:05 pm-10:28 am

2 stops16h 23m

$778

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Thu 11/13

12:11 pm-1:15 pm

2 stops23h 04m

Rio de Janeiro Santos Dumont

Mon 11/17

4:50 pm-11:31 am

2 stops20h 41m

$778

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Fri 11/14

12:11 pm-1:20 pm

2 stops23h 09m

Rio de Janeiro Santos Dumont

Mon 11/17

5:10 pm-11:31 am

2 stops20h 21m

$778

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

Fri 11/28

5:03 pm-1:20 pm

2 stops18h 17m

Rio de Janeiro Santos Dumont

Tue 12/2

8:05 pm-10:05 am

2 stops16h 00m

$858

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Mon 11/10

12:11 pm-1:15 pm

2 stops23h 04m

Rio de Janeiro Santos Dumont

Sun 11/16

2:00 pm-11:31 am

2 stops23h 31m

$863

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 38 results
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Best time to book a flight from District of Columbia to Santos Dumont

Have a flexible travel schedule? Discover the best time to fly to Santos Dumont from District of Columbia 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 District of Columbia to Rio de Janeiro Santos Dumont Airport
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from District of Columbia to Santos Dumont. 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 District of Columbia to Rio de Janeiro Santos Dumont Airport?

    Departing from District of Columbia to Rio de Janeiro Santos Dumont Airport will take you 16h 15m. Airlines will cover a distance of 4811 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from District of Columbia to Santos Dumont that include hotel bookings?

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

  • How can I find direct flights from District of Columbia to Santos Dumont?

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

  • Can I find deals for business class flights from District of Columbia to Santos Dumont?

    Yes. Cheapflights offers flight deals from District of Columbia to Santos Dumont 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

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Alternative routes for District of Columbia to Santos Dumont

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Rio de Janeiro–Galeão Intl flights
Miami to Rio de Janeiro–Galeão Intl flights
John F Kennedy Intl to Santos Dumont flights
Newark to Rio de Janeiro–Galeão Intl flights
Dallas/Fort Worth to Rio de Janeiro–Galeão Intl flights
LaGuardia to Rio de Janeiro–Galeão Intl flights
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Miami to Santos Dumont flights
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LaGuardia to Santos Dumont flights
O'Hare Intl to Santos Dumont flights
Fort Lauderdale to Rio de Janeiro–Galeão Intl flights
George Bush Intcntl to Rio de Janeiro–Galeão Intl flights
Austin to Rio de Janeiro–Galeão Intl flights
Dallas/Fort Worth to Santos Dumont flights
Boston to Santos Dumont flights
Fort Lauderdale to Santos Dumont flights
Seattle to Rio de Janeiro–Galeão Intl flights
Austin to Santos Dumont flights
Midway to Rio de Janeiro–Galeão Intl flights
Seattle to Santos Dumont flights
Denver to Rio de Janeiro–Galeão Intl flights
Philadelphia to Rio de Janeiro–Galeão Intl flights
Raleigh to Rio de Janeiro–Galeão Intl flights
Minneapolis to Rio de Janeiro–Galeão Intl flights
Tampa to Rio de Janeiro–Galeão Intl flights
Love Field to Rio de Janeiro–Galeão Intl flights
Philadelphia to Santos Dumont flights
San Diego to Rio de Janeiro–Galeão Intl flights
Atlanta to Santos Dumont flights
Raleigh to Santos Dumont flights
Denver to Santos Dumont flights

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