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Santos Dumont

$249+ 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 4/11. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SDU
Mar 15 — Mar 221
Sun 3/15
Sun 3/22
1 adult, Economy
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Cheap 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 February 13, 2026.

This KAYAK deal was found by Cheapflights users on 2/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/161:45 pm
DCA
-
SDU
2 stops21h 25m
LATAM Airlines
Tue 11/178:15 pm
SDU
-
DCA
2 stops23h 59m
LATAM Airlines
Deal found 2/10$591
This LATAM Airlines deal was found by Cheapflights users on 2/11. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/226:50 pm
IAD
-
SDU
2 stops17h 20m
LATAM Airlines
Tue 5/58:15 pm
SDU
-
IAD
2 stops16h 50m
LATAM Airlines
Deal found 2/11$602
This FlightHub deal was found by Cheapflights users on 2/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/165:00 pm
DCA
-
SDU
2 stops18h 10m
LATAM Airlines
Fri 11/208:15 pm
SDU
-
DCA
2 stops19h 41m
LATAM Airlines
Deal found 2/10$603
This KAYAK deal was found by Cheapflights users on 2/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/94:00 pm
IAD
-
SDU
2 stops20h 10m
LATAM Airlines
Tue 9/155:45 pm
SDU
-
IAD
2 stops19h 06m
LATAM Airlines
Deal found 2/11$603
This BusinessClass deal was found by Cheapflights users on 2/13. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2111:00 am
DCA
-
SDU
2 stops25h 10m
LATAM Airlines
Mon 5/258:15 pm
SDU
-
DCA
2 stops18h 34m
LATAM Airlines
Deal found 2/13$605
This BusinessClass deal was found by Cheapflights users on 2/13. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2112:58 pm
IAD
-
SDU
2 stops23h 12m
LATAM Airlines
Mon 5/258:15 pm
SDU
-
IAD
2 stops17h 03m
LATAM Airlines
Deal found 2/13$605
This LATAM Airlines deal was found by Cheapflights users on 2/10. 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.
Sun 5/105:00 pm
DCA
-
SDU
2 stops18h 30m
LATAM Airlines
Wed 5/135:45 pm
SDU
-
DCA
2 stops21h 04m
LATAM Airlines
Deal found 2/10$607
This Mytrip deal was found by Cheapflights users on 2/9. 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.
Thu 4/236:50 am
IAD
-
SDU
2 stops24h 45m
Multiple Airlines
Mon 4/271:45 pm
SDU
-
IAD
2 stops16h 35m
Multiple Airlines
Deal found 2/9$607
This KAYAK deal was found by Cheapflights users on 2/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/92:55 pm
DCA
-
SDU
2 stops20h 35m
LATAM Airlines
Sat 8/228:15 pm
SDU
-
DCA
2 stops18h 50m
LATAM Airlines
Deal found 2/10$609
This KAYAK deal was found by Cheapflights users on 2/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2012:30 pm
IAD
-
SDU
2 stops22h 00m
LATAM Airlines
Wed 12/28:15 pm
SDU
-
IAD
2 stops20h 26m
LATAM Airlines
Deal found 2/11$609
This Travelocity deal was found by Cheapflights users on 2/10. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:45 am
DCA
-
SDU
2 stops24h 50m
Multiple Airlines
Fri 10/238:15 pm
SDU
-
DCA
2 stops18h 41m
Multiple Airlines
Deal found 2/10$628
This Expedia deal was found by Cheapflights users on 2/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/45:00 pm
DCA
-
SDU
2 stops18h 15m
LATAM Airlines
Sun 3/88:05 pm
SDU
-
DCA
2 stops16h 31m
LATAM Airlines
Deal found 2/12$633

Find 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 February 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$602
(LATAM Airlines)

One-way from

$249
(Trip.com)

Popular in

June

Cheapest in

May

Average price

$708
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. 3% potential increase in price ($28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 February 13, 2026.
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

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

Sun 3/8

5:09 pm-9:25 am

2 stops15h 16m

Rio de Janeiro Santos Dumont

Mon 3/16

8:05 pm-12:53 pm

2 stops17h 48m

$603

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

Wed 2/25

5:00 pm-1:15 pm

2 stops18h 15m

Rio de Janeiro Santos Dumont

Fri 3/6

5:40 pm-10:19 am

2 stops18h 39m

$603

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

Tue 8/11

5:00 pm-1:10 pm

2 stops19h 10m

Rio de Janeiro Santos Dumont

Fri 8/21

8:15 pm-2:05 pm

2 stops18h 50m

$603

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

Mon 5/4

5:00 pm-1:10 pm

2 stops19h 10m

Rio de Janeiro Santos Dumont

Wed 5/13

1:55 pm-1:49 pm

2 stops24h 54m

$603

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

Mon 3/30

1:55 pm-1:10 pm

2 stops22h 15m

Rio de Janeiro Santos Dumont

Tue 4/14

8:20 pm-12:59 pm

2 stops17h 39m

$603

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Mon 4/20

12:45 pm-1:10 pm

2 stops23h 25m

Rio de Janeiro Santos Dumont

Sun 4/26

1:55 pm-6:08 pm

2 stops29h 13m

$603

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

Sun 8/9

2:55 pm-8:35 am

2 stops16h 40m

Rio de Janeiro Santos Dumont

Mon 8/24

8:15 pm-2:05 pm

2 stops18h 50m

$603

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

Sun 3/8

5:09 pm-9:25 am

2 stops15h 16m

Rio de Janeiro Santos Dumont

Thu 3/12

8:05 pm-12:53 pm

2 stops17h 48m

$603

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

Tue 5/19

5:00 pm-1:10 pm

2 stops19h 10m

Rio de Janeiro Santos Dumont

Sun 5/31

8:15 pm-11:15 am

2 stops16h 00m

$603

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

Tue 8/11

2:55 pm-8:35 am

2 stops16h 40m

Rio de Janeiro Santos Dumont

Sun 8/23

8:15 pm-2:05 pm

2 stops18h 50m

$603

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

Showing 1-10 of 43 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
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Fort Lauderdale to Rio de Janeiro–Galeão Intl flights
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Seattle to Santos Dumont flights
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