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Cheap flights from Rio de Janeiro Santos Dumont Airport to Seattle from $441

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Rio de Janeiro Santos Dumont Airport to Seattle departing on 1/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Rio de Janeiro Santos Dumont Airport to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
1:45 pm - 11:47 am
SDU
-
SEA
26h 02m2 stops
United Airlines Logo
11:00 pm - 4:45 pm
SEA
-
SDU
37h 45m2 stops
$1,460United Airlines
Thu, May 7 - Sun, May 10
United Airlines Logo
1:45 pm - 10:37 am
SDU
-
SEA
24h 52m2 stops
United Airlines Logo
11:00 pm - 4:45 pm
SEA
-
SDU
37h 45m2 stops
$1,463United Airlines
Thu, May 7 - Sun, May 10
United Airlines Logo
1:45 pm - 2:35 pm
SDU
-
SEA
28h 50m3 stops
United Airlines Logo
8:56 am - 4:45 pm
SEA
-
SDU
27h 49m3 stops
$1,819United Airlines
Thu, May 7 - Sun, May 10
United Airlines Logo
1:45 pm - 2:35 pm
SDU
-
SEA
28h 50m3 stops
United Airlines Logo
8:56 am - 4:45 pm
SEA
-
SDU
27h 49m3 stops
$1,823United Airlines
Thu, May 7 - Sun, May 10
United Airlines Logo
2:50 pm - 7:03 pm
SDU
-
SEA
33h 13m2 stops
United Airlines Logo
11:59 pm - 4:40 pm
SEA
-
SDU
35h 41m2 stops
$1,957United Airlines
Sun, Feb 22 - Mon, Feb 23

United Airlines flights from Rio de Janeiro Santos Dumont Airport to Seattle

Our best United Airlines deals on Rio de Janeiro Santos Dumont Airport to Seattle flight tickets
United Airlines
May 7
SDU1:45 pmRio de Janeiro Santos Dumont
26h 02m
2 stops
SEA11:47 amSeattle/Tacoma Intl
May 10
SEA11:00 pmSeattle/Tacoma Intl
37h 45m
2 stops
SDU4:45 pmRio de Janeiro Santos Dumont
$1,460
Find similar
United Airlines
May 7
SDU1:45 pmRio de Janeiro Santos Dumont
24h 52m
2 stops
SEA10:37 amSeattle/Tacoma Intl
May 10
SEA11:00 pmSeattle/Tacoma Intl
37h 45m
2 stops
SDU4:45 pmRio de Janeiro Santos Dumont
$1,463
Find similar
United Airlines
May 7
SDU1:45 pmRio de Janeiro Santos Dumont
28h 50m
3 stops
SEA2:35 pmSeattle/Tacoma Intl
May 10
SEA8:56 amSeattle/Tacoma Intl
27h 49m
3 stops
SDU4:45 pmRio de Janeiro Santos Dumont
$1,819
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Rio de Janeiro Santos Dumont Airport to Seattle 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, momondo users made 832,500 searches. Data last updated December 15, 2025.
Use the filters below to find and compare flights from Rio de Janeiro Santos Dumont Airport to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Rio de JaneiroSeattle

SDU - SEA

SDUSEA

Rio de Janeiro Santos Dumont

Thu 5/7

1:45 pm-11:47 am

2 stops26h 02m

Seattle/Tacoma Intl

Sun 5/10

11:00 pm-4:45 pm

2 stops37h 45m

$1,460

Rio de JaneiroSeattle

SDU - SEA

SDUSEA

Rio de Janeiro Santos Dumont

Thu 5/7

1:45 pm-10:37 am

2 stops24h 52m

Seattle/Tacoma Intl

Sun 5/10

11:00 pm-4:45 pm

2 stops37h 45m

$1,463

Rio de JaneiroSeattle

SDU - SEA

SDUSEA

Rio de Janeiro Santos Dumont

Thu 5/7

1:45 pm-2:35 pm

3 stops28h 50m

Seattle/Tacoma Intl

Sun 5/10

8:56 am-4:45 pm

3 stops27h 49m

$1,819

Rio de JaneiroSeattle

SDU - SEA

SDUSEA

Rio de Janeiro Santos Dumont

Thu 5/7

1:45 pm-2:35 pm

3 stops28h 50m

Seattle/Tacoma Intl

Sun 5/10

8:56 am-4:45 pm

3 stops27h 49m

$1,823

Rio de JaneiroSeattle

SDU - SEA

SDUSEA

Rio de Janeiro Santos Dumont

Sun 2/22

2:50 pm-7:03 pm

2 stops33h 13m

Seattle/Tacoma Intl

Mon 2/23

11:59 pm-4:40 pm

2 stops35h 41m

$1,957

Rio de JaneiroSeattle

SDU - SEA

SDUSEA

Rio de Janeiro Santos Dumont

Thu 1/22

8:05 pm-2:57 pm

3 stops47h 52m

$441

Rio de JaneiroSeattle

SDU - SEA

SDUSEA

Rio de Janeiro Santos Dumont

Thu 1/22

1:10 pm-10:16 pm

2 stops38h 06m

$898

Rio de JaneiroSeattle

SDU - SEA

SDUSEA

Rio de Janeiro Santos Dumont

Sun 12/21

2:50 pm-10:16 pm

2 stops36h 26m

$1,215

Rio de JaneiroSeattle

SDU - SEA

SDUSEA

Rio de Janeiro Santos Dumont

Thu 1/1

2:30 pm-6:10 pm

2 stops32h 40m

$1,453

Rio de JaneiroSeattle

SDU - SEA

SDUSEA

Rio de Janeiro Santos Dumont

Thu 1/1

1:45 pm-10:16 pm

2 stops37h 31m

$2,556

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Seattle from

How to get the cheapest flight ticket from Rio de Janeiro Santos Dumont Airport to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Rio de Janeiro Santos Dumont Airport is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $1,112. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Rio de Janeiro Santos Dumont Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,756.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Rio de Janeiro Santos Dumont Airport in the evening is the least expensive time of day to depart. momondo users have found prices as low as $1,484 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $1,584. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Rio de Janeiro Santos Dumont Airport to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Rio de Janeiro Santos Dumont Airport to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Rio de Janeiro Santos Dumont Airport to Seattle (SDU to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Rio de Janeiro Santos Dumont Airport to Seattle

Fastest flight time

26h 02m

Direct flights

None
The fastest flight from Rio de Janeiro Santos Dumont Airport to Seattle takes 26h 02m
There are no direct flights from Rio de Janeiro Santos Dumont Airport to Seattle. There are no popular flight routes from Rio de Janeiro Santos Dumont Airport to Seattle.
Search flight deals

  • How far is Rio de Janeiro Santos Dumont to Seattle/Tacoma Intl by plane?

    A flight from Rio de Janeiro Santos Dumont to Seattle/Tacoma Intl will travel around 6893.6 mi. Flights usually cover this in 26h 02m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Rio de Janeiro Santos Dumont Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Rio de Janeiro Santos Dumont Airport to Seattle/Tacoma Intl Airport were last updated today.

  • How old do you have to be to fly from Rio de Janeiro Santos Dumont Airport to Seattle/Tacoma Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Rio de Janeiro Santos Dumont Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Redmond
Tukwila
Cle Elum
Federal Way
Lakewood
Fife
Centralia
Westport
Kirkland
Shoreline

Why use momondo?

Why should I use momondo to find a flight deal from Rio de Janeiro to Seattle?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Rio de Janeiro.

Can I find flights from Rio de Janeiro to Seattle with flexible booking policies on momondo?

All flight searches from Rio de Janeiro to Seattle on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Rio de Janeiro to Seattle?

Once all potential Rio de Janeiro to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Rio de Janeiro to Seattle right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Rio de Janeiro to Seattle flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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