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$509+ 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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
SDU — SEA
May 5 — May 121
Mon 5/5
Mon 5/12
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 April 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$730
(Flightnetwork)

One-way from

$509
(Air Canada)

Popular in

July

Cheapest in

February

Average price

$1,247
Provider with most accurate pricing for Rio de Janeiro (RIO)-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Rio de Janeiro (RIO)-Seattle/Tacoma Intl flights.
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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. 18% potential increase in price ($257 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($59 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 30, 2025.

This Flightnetwork deal was found by Cheapflights users on 4/28. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/147:55 amSDU - SEA
2 stops39h 42mAir Canada
Fri 5/307:20 amSEA - SDU
2 stops28h 30mAir Canada
Deal found 4/28$730
This Flightnetwork deal was found by Cheapflights users on 4/28. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/141:05 pmSDU - SEA
2 stops25h 40mMultiple Airlines
Fri 5/307:20 amSEA - SDU
2 stops28h 30mMultiple Airlines
Deal found 4/28$733
This United Airlines deal was found by Cheapflights users on 4/29. 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 7/281:00 pmSDU - SEA
2 stops26h 37mUnited Airlines
Wed 8/131:55 pmSEA - SDU
2 stops21h 55mUnited Airlines
Deal found 4/29$1,221
This Delta deal was found by Cheapflights users on 4/29. 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.
Sun 7/278:20 pmSDU - SEA
2 stops29h 34mDelta
Wed 8/138:00 amSEA - SDU
2 stops25h 40mDelta
Deal found 4/29$1,327
This LATAM Airlines deal was found by Cheapflights users on 4/28. 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.
Fri 5/24:40 pmSDU - SEA
2 stops26h 13mLATAM Airlines
Wed 5/77:16 amSEA - SDU
2 stops22h 19mLATAM Airlines
Deal found 4/28$1,675

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 April 30, 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

Wed 5/14

7:55 am-7:37 pm

2 stops39h 42m

Seattle/Tacoma Intl

Fri 5/30

7:20 am-3:50 pm

2 stops28h 30m

$730

Rio de JaneiroSeattle

SDU - SEA

SDUSEA

Rio de Janeiro Santos Dumont

Wed 5/14

1:05 pm-10:45 am

2 stops25h 40m

Seattle/Tacoma Intl

Fri 5/30

7:20 am-3:50 pm

2 stops28h 30m

$733

Rio de JaneiroSeattle

SDU - SEA

SDUSEA

Rio de Janeiro Santos Dumont

Mon 7/28

1:00 pm-11:37 am

2 stops26h 37m

Seattle/Tacoma Intl

Wed 8/13

1:55 pm-3:50 pm

2 stops21h 55m

$1,221

Rio de JaneiroSeattle

SDU - SEA

SDUSEA

Rio de Janeiro Santos Dumont

Sun 7/27

8:20 pm-9:54 pm

2 stops29h 34m

Seattle/Tacoma Intl

Wed 8/13

8:00 am-1:40 pm

2 stops25h 40m

$1,327

Rio de JaneiroSeattle

SDU - SEA

SDUSEA

Rio de Janeiro Santos Dumont

Wed 5/14

7:55 am-7:37 pm

2 stops39h 42m

$509

Rio de JaneiroSeattle

SDU - SEA

SDUSEA

Rio de Janeiro Santos Dumont

Sun 8/10

9:25 am-10:30 am

2 stops29h 05m

$510

Rio de JaneiroSeattle

SDU - SEA

SDUSEA

Rio de Janeiro Santos Dumont

Mon 5/12

1:05 pm-3:58 pm

3 stops30h 53m

$1,156

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

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

Rainfall in Washington by month

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

In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

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

If weather is an important factor for your trip to State of Washington, 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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated April 30, 2025.
Delta
8.0
Very good
7,936 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,936 reviews
Delta
8.0
Very good
7,936 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,936 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Canada
7.0
Good
9,242 reviews
Delta
8.0
Very good
7,936 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 July is currently the most expensive (average of $405). 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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