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Cheap flights from Seattle to Rio de Janeiro from $406

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 4/21. 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
1 adult, Economy, 0 bags

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Find the cheapest flights from Seattle to Rio de Janeiro

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
8:00 am - 7:40 am
SEA
-
SDU
43h 40m
2 stops
Air Canada Logo
1:45 pm - 9:08 pm
SDU
-
SEA
35h 23m
2 stops
$993Air Canada
Tue, May 19 - Wed, May 27
Multiple Airlines Logo
8:00 am - 4:45 pm
SEA
-
SDU
28h 45m
2 stops
Multiple Airlines Logo
1:50 pm - 9:53 pm
SDU
-
SEA
36h 03m
2 stops
$1,050Multiple Airlines
Mon, Apr 13 - Tue, Apr 21
Multiple Airlines Logo
8:00 am - 4:45 pm
SEA
-
SDU
28h 45m
2 stops
Multiple Airlines Logo
1:50 pm - 9:53 pm
SDU
-
SEA
36h 03m
2 stops
$1,051Multiple Airlines
Wed, Apr 22 - Wed, Apr 29
Multiple Airlines Logo
8:00 am - 4:45 pm
SEA
-
SDU
28h 45m
2 stops
Multiple Airlines Logo
1:45 pm - 9:08 pm
SDU
-
SEA
35h 23m
2 stops
$1,060Multiple Airlines
Tue, May 19 - Wed, May 27
Azul Logo
8:00 am - 4:45 pm
SEA
-
SDU
28h 45m
2 stops
Azul Logo
1:45 pm - 9:08 pm
SDU
-
SEA
35h 23m
2 stops
$1,072Azul
Tue, May 19 - Thu, Jun 4
Air Canada Logo
8:00 am - 4:45 pm
SEA
-
SDU
28h 45m
2 stops
Air Canada Logo
1:50 pm - 9:53 pm
SDU
-
SEA
36h 03m
2 stops
$1,084Air Canada
Tue, Apr 14 - Thu, Apr 23
LATAM Airlines Logo
6:00 am - 8:35 am
SEA
-
SDU
22h 35m
2 stops
LATAM Airlines Logo
8:15 pm - 9:59 pm
SDU
-
SEA
29h 44m
2 stops
$1,119LATAM Airlines
Tue, Aug 11 - Tue, Aug 25
Air Canada Logo
8:00 am - 4:45 pm
SEA
-
SDU
28h 45m
2 stops
Air Canada Logo
1:45 pm - 9:08 pm
SDU
-
SEA
35h 23m
2 stops
$1,130Air Canada
Mon, Apr 27 - Mon, May 11
Multiple Airlines Logo
8:00 am - 4:45 pm
SEA
-
SDU
28h 45m
2 stops
Multiple Airlines Logo
1:45 pm - 9:08 pm
SDU
-
SEA
35h 23m
2 stops
$1,132Multiple Airlines
Tue, Apr 21 - Tue, May 5
Air Canada Logo
8:00 am - 4:45 pm
SEA
-
SDU
28h 45m
2 stops
Air Canada Logo
1:45 pm - 9:08 pm
SDU
-
SEA
35h 23m
2 stops
$1,133Air Canada
Mon, Apr 27 - Mon, May 11

Azul flights from Seattle to Rio de Janeiro Santos Dumont Airport

Our best Azul deals on Seattle to Rio de Janeiro Santos Dumont Airport flight tickets
Azul
May 19
SEA8:00 amSeattle/Tacoma Intl
28h 45m
2 stops
SDU4:45 pmRio de Janeiro Santos Dumont
Jun 1
SDU1:45 pmRio de Janeiro Santos Dumont
35h 23m
2 stops
SEA9:08 pmSeattle/Tacoma Intl
$1,072
Azul
May 21
SEA8:00 amSeattle/Tacoma Intl
28h 45m
2 stops
SDU4:45 pmRio de Janeiro Santos Dumont
Jun 1
SDU1:45 pmRio de Janeiro Santos Dumont
35h 23m
2 stops
SEA9:08 pmSeattle/Tacoma Intl
$1,160
Azul
May 25
SEA8:00 amSeattle/Tacoma Intl
28h 45m
2 stops
SDU4:45 pmRio de Janeiro Santos Dumont
May 29
SDU1:45 pmRio de Janeiro Santos Dumont
35h 23m
2 stops
SEA9:08 pmSeattle/Tacoma Intl
$1,181

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

Our best LATAM Airlines deals on Seattle to Rio de Janeiro Santos Dumont Airport flight tickets
LATAM Airlines
Aug 11
SEA6:00 amSeattle/Tacoma Intl
22h 35m
2 stops
SDU8:35 amRio de Janeiro Santos Dumont
Aug 25
SDU8:15 pmRio de Janeiro Santos Dumont
29h 44m
2 stops
SEA9:59 pmSeattle/Tacoma Intl
$1,119
LATAM Airlines
May 9
SEA7:15 amSeattle/Tacoma Intl
26h 45m
2 stops
SDU2:00 pmRio de Janeiro Santos Dumont
May 16
SDU8:15 pmRio de Janeiro Santos Dumont
22h 35m
2 stops
SEA2:50 pmSeattle/Tacoma Intl
$1,323
LATAM Airlines
Mar 23
SEA7:30 amSeattle/Tacoma Intl
24h 05m
2 stops
SDU11:35 amRio de Janeiro Santos Dumont
Apr 7
SDU1:55 pmRio de Janeiro Santos Dumont
24h 50m
2 stops
SEA10:45 amSeattle/Tacoma Intl
$1,618

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 March 10, 2026.
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

Cheapest round-trip

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Tue 5/19

8:00 am-7:40 am

2 stops43h 40m

Rio de Janeiro Santos Dumont

Wed 5/27

1:45 pm-9:08 pm

2 stops35h 23m

$993

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

Tue 4/21

1:50 pm-9:53 pm

2 stops36h 03m

$1,050

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Wed 4/22

8:00 am-4:45 pm

2 stops28h 45m

Rio de Janeiro Santos Dumont

Wed 4/29

1:50 pm-9:53 pm

2 stops36h 03m

$1,051

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Tue 5/19

8:00 am-4:45 pm

2 stops28h 45m

Rio de Janeiro Santos Dumont

Wed 5/27

1:45 pm-9:08 pm

2 stops35h 23m

$1,060

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Tue 5/19

8:00 am-4:45 pm

2 stops28h 45m

Rio de Janeiro Santos Dumont

Thu 6/4

1:45 pm-9:08 pm

2 stops35h 23m

$1,072

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Tue 4/14

8:00 am-4:45 pm

2 stops28h 45m

Rio de Janeiro Santos Dumont

Thu 4/23

1:50 pm-9:53 pm

2 stops36h 03m

$1,084
Quickest round-trip

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Tue 8/11

6:00 am-8:35 am

2 stops22h 35m

Rio de Janeiro Santos Dumont

Tue 8/25

8:15 pm-9:59 pm

2 stops29h 44m

$1,119

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Mon 4/27

8:00 am-4:45 pm

2 stops28h 45m

Rio de Janeiro Santos Dumont

Mon 5/11

1:45 pm-9:08 pm

2 stops35h 23m

$1,130

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Tue 4/21

8:00 am-4:45 pm

2 stops28h 45m

Rio de Janeiro Santos Dumont

Tue 5/5

1:45 pm-9:08 pm

2 stops35h 23m

$1,132

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Mon 4/27

8:00 am-4:45 pm

2 stops28h 45m

Rio de Janeiro Santos Dumont

Mon 5/11

1:45 pm-9:08 pm

2 stops35h 23m

$1,133

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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

21h 32m

Direct flights

None
The fastest flight from Seattle to Rio de Janeiro Santos Dumont Airport takes 21h 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 21h 32m, 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.

  • How do I get Price Alerts for flights from Seattle to Rio de Janeiro Santos Dumont Airport?

    Confirm your travel details to search for the latest offers for flights from Seattle to Rio de Janeiro Santos Dumont Airport. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Seattle to Rio de Janeiro Santos Dumont Airport with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

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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