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Cheap flights from Seattle to Rio de Janeiro from $486

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Rio de Janeiro departing on 3/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:15 pm - 4:45 pm
SEA
-
SDU
24h 30m2 stops
Multiple Airlines Logo
1:45 pm - 7:41 pm
SDU
-
SEA
33h 56m2 stops
$793Multiple Airlines
Mon, May 11 - Wed, May 20
Air Canada Logo
8:00 am - 4:45 pm
SEA
-
SDU
28h 45m2 stops
Air Canada Logo
1:45 pm - 9:51 pm
SDU
-
SEA
36h 06m2 stops
$796Air Canada
Mon, Apr 13 - Wed, Apr 22
Multiple Airlines Logo
8:00 am - 4:45 pm
SEA
-
SDU
28h 45m2 stops
Multiple Airlines Logo
1:45 pm - 9:51 pm
SDU
-
SEA
36h 06m2 stops
$867Multiple Airlines
Wed, Apr 15 - Fri, Apr 24
Multiple Airlines Logo
10:00 am - 4:45 pm
SEA
-
SDU
26h 45m3 stops
Multiple Airlines Logo
1:45 pm - 7:41 pm
SDU
-
SEA
33h 56m2 stops
$893Multiple Airlines
Mon, May 11 - Wed, May 20
Air Canada Logo
8:00 am - 4:45 pm
SEA
-
SDU
28h 45m2 stops
Air Canada Logo
1:45 pm - 9:51 pm
SDU
-
SEA
36h 06m2 stops
$896Air Canada
Mon, Apr 13 - Thu, Apr 23
Multiple Airlines Logo
8:44 am - 7:35 pm
SEA
-
SDU
29h 51m2 stops
Multiple Airlines Logo
6:00 am - 10:29 pm
SDU
-
SEA
21h 29m2 stops
$940Multiple Airlines
Thu, Jan 22 - Wed, Feb 4
Multiple Airlines Logo
8:00 am - 5:45 pm
SEA
-
SDU
29h 45m2 stops
Multiple Airlines Logo
1:45 pm - 9:51 pm
SDU
-
SEA
36h 06m2 stops
$962Multiple Airlines
Sat, Apr 18 - Thu, Apr 23
Multiple Airlines Logo
8:10 am - 4:40 pm
SEA
-
SDU
27h 30m2 stops
Multiple Airlines Logo
1:45 pm - 10:16 pm
SDU
-
SEA
36h 31m2 stops
$966Multiple Airlines
Wed, Mar 4 - Wed, Mar 18
Multiple Airlines Logo
8:00 am - 8:15 pm
SEA
-
SDU
32h 15m2 stops
Multiple Airlines Logo
8:30 am - 9:51 pm
SDU
-
SEA
41h 21m2 stops
$982Multiple Airlines
Fri, Apr 3 - Sun, Apr 12
Multiple Airlines Logo
10:00 am - 4:45 pm
SEA
-
SDU
26h 45m3 stops
Multiple Airlines Logo
1:45 pm - 1:01 pm
SDU
-
SEA
27h 16m3 stops
$993Multiple Airlines
Mon, May 11 - Wed, May 20

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

Our best United Airlines deals on Seattle to Rio de Janeiro Santos Dumont Airport flight tickets
United Airlines
Feb 9
SEA10:58 amSeattle/Tacoma Intl
22h 32m
2 stops
SDU2:30 pmRio de Janeiro Santos Dumont
Feb 23
SDU1:45 pmRio de Janeiro Santos Dumont
34h 18m
2 stops
SEA7:03 pmSeattle/Tacoma Intl
$1,058
Find similar
United Airlines
Feb 9
SEA10:58 amSeattle/Tacoma Intl
22h 32m
2 stops
SDU2:30 pmRio de Janeiro Santos Dumont
Feb 23
SDU1:45 pmRio de Janeiro Santos Dumont
34h 18m
2 stops
SEA7:03 pmSeattle/Tacoma Intl
$1,125
Find similar
United Airlines
Mar 1
SEA11:59 pmSeattle/Tacoma Intl
35h 41m
2 stops
SDU4:40 pmRio de Janeiro Santos Dumont
Mar 5
SDU1:45 pmRio de Janeiro Santos Dumont
34h 18m
2 stops
SEA7:03 pmSeattle/Tacoma Intl
$1,293
Find similar

Air Canada flights from Seattle to Rio de Janeiro Santos Dumont Airport

Our best Air Canada deals on Seattle to Rio de Janeiro Santos Dumont Airport flight tickets
Air Canada
Apr 13
SEA8:00 amSeattle/Tacoma Intl
28h 45m
2 stops
SDU4:45 pmRio de Janeiro Santos Dumont
Apr 22
SDU1:45 pmRio de Janeiro Santos Dumont
36h 06m
2 stops
SEA9:51 pmSeattle/Tacoma Intl
$796
Find similar
Air Canada
Apr 13
SEA8:00 amSeattle/Tacoma Intl
28h 45m
2 stops
SDU4:45 pmRio de Janeiro Santos Dumont
Apr 23
SDU1:45 pmRio de Janeiro Santos Dumont
36h 06m
2 stops
SEA9:51 pmSeattle/Tacoma Intl
$896
Find similar
Air Canada
Feb 24
SEA8:10 amSeattle/Tacoma Intl
27h 30m
2 stops
SDU4:40 pmRio de Janeiro Santos Dumont
Mar 28
SDU5:30 pmRio de Janeiro Santos Dumont
32h 21m
2 stops
SEA9:51 pmSeattle/Tacoma Intl
$1,155
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Rio de Janeiro Santos Dumont Airport 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 4, 2025.
Use the filters below to find and compare flights from Seattle to Rio de Janeiro Santos Dumont Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Mon 5/11

12:15 pm-4:45 pm

2 stops24h 30m

Rio de Janeiro Santos Dumont

Wed 5/20

1:45 pm-7:41 pm

2 stops33h 56m

$793

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Mon 4/13

8:00 am-4:45 pm

2 stops28h 45m

Rio de Janeiro Santos Dumont

Wed 4/22

1:45 pm-9:51 pm

2 stops36h 06m

$796

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Wed 4/15

8:00 am-4:45 pm

2 stops28h 45m

Rio de Janeiro Santos Dumont

Fri 4/24

1:45 pm-9:51 pm

2 stops36h 06m

$867

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Mon 5/11

10:00 am-4:45 pm

3 stops26h 45m

Rio de Janeiro Santos Dumont

Wed 5/20

1:45 pm-7:41 pm

2 stops33h 56m

$893

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Mon 4/13

8:00 am-4:45 pm

2 stops28h 45m

Rio de Janeiro Santos Dumont

Thu 4/23

1:45 pm-9:51 pm

2 stops36h 06m

$896

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Thu 1/22

8:44 am-7:35 pm

2 stops29h 51m

Rio de Janeiro Santos Dumont

Wed 2/4

6:00 am-10:29 pm

2 stops21h 29m

$940

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Sat 4/18

8:00 am-5:45 pm

2 stops29h 45m

Rio de Janeiro Santos Dumont

Thu 4/23

1:45 pm-9:51 pm

2 stops36h 06m

$962

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Wed 3/4

8:10 am-4:40 pm

2 stops27h 30m

Rio de Janeiro Santos Dumont

Wed 3/18

1:45 pm-10:16 pm

2 stops36h 31m

$966

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Fri 4/3

8:00 am-8:15 pm

2 stops32h 15m

Rio de Janeiro Santos Dumont

Sun 4/12

8:30 am-9:51 pm

2 stops41h 21m

$982

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Mon 5/11

10:00 am-4:45 pm

3 stops26h 45m

Rio de Janeiro Santos Dumont

Wed 5/20

1:45 pm-1:01 pm

3 stops27h 16m

$993

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Rio de Janeiro from

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

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 airline that flies from Seattle/Tacoma Intl to Rio de Janeiro Santos Dumont?

Air Canada and United Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Rio de Janeiro Santos Dumont

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

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

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

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

Fastest flight time

22h 32m

Direct flights

None
The fastest flight from Seattle to Rio de Janeiro Santos Dumont Airport takes 22h 32m
There are no direct flights from Seattle to Rio de Janeiro Santos Dumont Airport. There are no popular flight routes from Seattle to Rio de Janeiro Santos Dumont Airport.
Search flight deals

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

    Seattle/Tacoma Intl and Rio de Janeiro Santos Dumont are 6893.6 mi apart from one another. Flights usually cover this in 19h 17m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Seattle/Tacoma Intl Airport to Rio de Janeiro Santos Dumont Airport are updated daily.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Rio de Janeiro Santos Dumont Airport.

  • What documentation or ID do you need to fly to Rio de Janeiro Santos Dumont Airport?

    The travel and health documents you'll need for your trip to Rio de Janeiro Santos Dumont Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Rio de Janeiro Santos Dumont Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Rio de Janeiro. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Seattle to Rio de Janeiro flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Rio de Janeiro from Seattle.

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

If you are not ready to book a flight from Seattle to Rio de Janeiro now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Rio de Janeiro and let you know when they change.

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