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$426+ Cheap flights from Santos Dumont, Brazil (SDU) to Washington

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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
SDU — SEA
ago. 23 — ago. 301
sáb. 8/23
sáb. 8/30
1 adult, Economy
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Cheap flight deals from Santos Dumont to Washington

Keep the following information in mind while searching for Santos Dumont to Washington flight deals. Data was last updated agosto 18, 2025.

Round-trip from

$1,085
(Air Canada)

One-way from

$426
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,010
From Rio de Janeiro Santos Dumont to Washington
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One-way flight from Rio de Janeiro Santos Dumont to Washington
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Highest demand for flights based on searches. 12% potential increase in price ($148 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Santos Dumont to Washington

Cheapest flights from Santos Dumont to Washington
Explore the most affordable flight options available from Santos Dumont to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 18, 2025.

This Air Canada deal was found by Cheapflights users on 8/16. 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.
mar. 9/97:55 amSDU - SEA
2 stops31h 04mMultiple Airlines
mar. 9/3012:00 pmSEA - SDU
2 stops22h 20mMultiple Airlines
Deal found 8/16$1,189
This Air Canada deal was found by Cheapflights users on 8/18. 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.
vie. 12/1911:25 amSDU - SEA
2 stops39h 31mMultiple Airlines
sáb. 1/108:15 amSEA - SDU
2 stops28h 30mMultiple Airlines
Deal found 8/18$1,416
This Air Canada deal was found by Cheapflights users on 8/17. 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. 12/2411:25 amSDU - SEA
2 stops39h 31mMultiple Airlines
jue. 1/88:15 amSEA - SDU
2 stops25h 05mMultiple Airlines
Deal found 8/17$1,456
This Air Canada deal was found by Cheapflights users on 8/16. 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.
dom. 9/77:55 amSDU - SEA
2 stops31h 04mMultiple Airlines
mié. 10/17:15 amSEA - SDU
2 stops27h 05mMultiple Airlines
Deal found 8/16$1,871
This Delta deal was found by Cheapflights users on 8/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/208:20 pmSDU - SEA
2 stops19h 44mDelta
vie. 9/511:52 amSEA - SDU
2 stops21h 58mDelta
Deal found 8/16$6,336

Cheapflights Fare Finder

 
Customize your flight search to find flights from Santos Dumont to Washington 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 agosto 18, 2025.
Use the filters below to find and compare flights from Rio de Janeiro Santos Dumont Airport to Washington that are best for you.

Fly from

Santos Dumont

Fly to

Washington

Route

Depart

Return

Price

Rio de JaneiroSeattle

SDU - SEA

SDUSEA

Rio de Janeiro Santos Dumont

mar. 9/9

7:55 am-10:59 am

2 stops31h 04m

Seattle/Tacoma Intl

mar. 9/30

12:00 pm-2:20 pm

2 stops22h 20m

$1,189

Rio de JaneiroSeattle

SDU - SEA

SDUSEA

Rio de Janeiro Santos Dumont

dom. 9/7

7:55 am-10:59 am

2 stops31h 04m

Seattle/Tacoma Intl

mié. 10/1

7:15 am-2:20 pm

2 stops27h 05m

$1,871

Rio de JaneiroSeattle

SDU - SEA

SDUSEA

Rio de Janeiro Santos Dumont

mié. 9/17

11:55 am-7:54 pm

3 stops35h 59m

$426

Rio de JaneiroSeattle

SDU - SEA

SDUSEA

Rio de Janeiro Santos Dumont

mar. 9/16

6:20 am-11:59 pm

2 stops21h 39m

$428

Rio de JaneiroSeattle

SDU - SEA

SDUSEA

Rio de Janeiro Santos Dumont

lun. 9/15

11:25 am-7:50 pm

3 stops36h 25m

$499

Rio de JaneiroPortland

SDU - PDX

SDUPDX

Rio de Janeiro Santos Dumont

jue. 10/2

8:20 pm-1:24 pm

2 stops21h 04m

$535

Rio de JaneiroPortland

SDU - PDX

SDUPDX

Rio de Janeiro Santos Dumont

mar. 10/14

2:20 pm-8:45 pm

2 stops34h 25m

$535

Rio de JaneiroPortland

SDU - PDX

SDUPDX

Rio de Janeiro Santos Dumont

vie. 11/14

8:05 pm-8:43 pm

2 stops29h 38m

$548

Rio de JaneiroPortland

SDU - PDX

SDUPDX

Rio de Janeiro Santos Dumont

vie. 11/14

2:00 pm-11:54 am

2 stops26h 54m

$550

Rio de JaneiroSeattle

SDU - SEA

SDUSEA

Rio de Janeiro Santos Dumont

mar. 9/16

11:25 am-5:31 pm

3 stops34h 06m

$550

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Best time to book a flight from Santos Dumont to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington 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
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 Santos Dumont to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

  • How can I find direct flights from Santos Dumont to Washington?

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

  • Can I find deals for business class flights from Santos Dumont to Washington?

    Yes. Cheapflights offers flight deals from Santos Dumont to Washington 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 State of Washington?

    Currently, January is the cheapest month in which you can book a flight from Rio de Janeiro Santos Dumont Airport to State of Washington (average of $238). Flying from Rio de Janeiro Santos Dumont Airport to State of Washington in June is currently the most expensive (average of $388). 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.

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Alternative routes for Santos Dumont to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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