Cheap flights from Washington to Rio de Janeiro from $400

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Rio de Janeiro departing on 11/3. 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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Multiple Airlines Logo
8:00 am - 2:20 pmSEA-SDU
26h 20m2 stops
Multiple Airlines Logo
2:55 pm - 9:51 pmSDU-SEA
34h 56m2 stops
$772Multiple Airlines
Find Deal
Wed, Apr 1 - Sun, Apr 5
Multiple Airlines Logo
8:10 am - 2:20 pmSEA-SDU
25h 10m2 stops
Multiple Airlines Logo
11:25 am - 10:16 pmSDU-SEA
38h 51m2 stops
$806Multiple Airlines
Find Deal
Wed, Mar 4 - Wed, Mar 18
Air Canada Logo
8:10 am - 4:40 pmSEA-SDU
27h 30m2 stops
Air Canada Logo
1:45 pm - 10:16 pmSDU-SEA
37h 31m2 stops
$896Air Canada
Find Deal
Sun, Nov 16 - Wed, Nov 26
Air Canada Logo
8:10 am - 4:40 pmSEA-SDU
27h 30m2 stops
Air Canada Logo
1:45 pm - 10:16 pmSDU-SEA
37h 31m2 stops
$996Air Canada
Find Deal
Sun, Nov 16 - Mon, Nov 24
United Airlines Logo
12:39 pm - 4:40 pmSEA-SDU
23h 01m2 stops
United Airlines Logo
2:50 pm - 11:45 amSDU-SEA
25h 55m2 stops
$1,231United Airlines
Find Deal
Thu, Nov 27 - Sun, Dec 7
United Airlines Logo
8:00 am - 5:45 pmSEA-SDU
28h 45m2 stops
United Airlines Logo
1:45 pm - 12:34 pmSDU-SEA
27h 49m2 stops
$1,306United Airlines
Find Deal
Sat, Nov 15 - Thu, Nov 27
LATAM Airlines Logo
11:53 am - 9:25 pmPDX-SDU
28h 32m2 stops
LATAM Airlines Logo
8:05 pm - 7:35 pmSDU-PDX
28h 30m2 stops
$1,348LATAM Airlines
Find Deal
Thu, Nov 27 - Wed, Dec 10
LATAM Airlines Logo
11:30 am - 1:15 pmSEA-SDU
20h 45m2 stops
LATAM Airlines Logo
8:05 pm - 2:30 pmSDU-SEA
23h 25m2 stops
$1,373LATAM Airlines
Find Deal
Mon, Dec 8 - Tue, Dec 16
GOL Logo
12:43 pm - 4:55 pmSEA-SDU
47h 12m2 stops
GOL Logo
5:40 pm - 11:42 pmSDU-SEA
35h 02m2 stops
$1,673GOL
Find Deal
Wed, Dec 24 - Thu, Jan 8
GOL Logo
10:06 pm - 10:25 pmSEA-SDU
19h 19m2 stops
GOL Logo
8:25 pm - 11:40 pmSDU-SEA
32h 15m2 stops
$1,732GOL
Find Deal
Mon, Dec 22 - Wed, Dec 31

LATAM Airlines flights from State of Washington to Rio de Janeiro Santos Dumont Airport

Our best LATAM Airlines deals on State of Washington to Rio de Janeiro Santos Dumont Airport flight tickets
LATAM Airlines
Nov 27
PDX11:53 amPortland
28h 32m
2 stops
SDU9:25 pmRio de Janeiro Santos Dumont
Dec 10
SDU8:05 pmRio de Janeiro Santos Dumont
28h 30m
2 stops
PDX7:35 pmPortland
LATAM Airlines
Dec 8
SEA11:30 amSeattle/Tacoma Intl
20h 45m
2 stops
SDU1:15 pmRio de Janeiro Santos Dumont
Dec 16
SDU8:05 pmRio de Janeiro Santos Dumont
23h 25m
2 stops
SEA2:30 pmSeattle/Tacoma Intl
LATAM Airlines
Oct 14
PDX7:12 amPortland
26h 08m
2 stops
SDU1:20 pmRio de Janeiro Santos Dumont
Oct 23
SDU8:20 pmRio de Janeiro Santos Dumont
19h 09m
2 stops
PDX11:29 amPortland

Air Canada flights from State of Washington to Rio de Janeiro Santos Dumont Airport

Our best Air Canada deals on State of Washington to Rio de Janeiro Santos Dumont Airport flight tickets
Air Canada
Nov 16
SEA8:10 amSeattle/Tacoma Intl
27h 30m
2 stops
SDU4:40 pmRio de Janeiro Santos Dumont
Nov 26
SDU1:45 pmRio de Janeiro Santos Dumont
37h 31m
2 stops
SEA10:16 pmSeattle/Tacoma Intl
Air Canada
Nov 16
SEA8:10 amSeattle/Tacoma Intl
27h 30m
2 stops
SDU4:40 pmRio de Janeiro Santos Dumont
Nov 24
SDU1:45 pmRio de Janeiro Santos Dumont
37h 31m
2 stops
SEA10:16 pmSeattle/Tacoma Intl
Air Canada
Feb 22
SEA8:10 amSeattle/Tacoma Intl
25h 10m
2 stops
SDU2:20 pmRio de Janeiro Santos Dumont
Feb 24
SDU11:25 amRio de Janeiro Santos Dumont
39h 51m
2 stops
SEA10:16 pmSeattle/Tacoma Intl

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington 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 October 9, 2025.
Use the filters below to find and compare flights from Washington 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

Wed 4/1

8:00 am-2:20 pm

2 stops26h 20m

Rio de Janeiro Santos Dumont

Sun 4/5

2:55 pm-9:51 pm

2 stops34h 56m

$772

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Wed 3/4

8:10 am-2:20 pm

2 stops25h 10m

Rio de Janeiro Santos Dumont

Wed 3/18

11:25 am-10:16 pm

2 stops38h 51m

$806

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Sun 11/16

8:10 am-4:40 pm

2 stops27h 30m

Rio de Janeiro Santos Dumont

Wed 11/26

1:45 pm-10:16 pm

2 stops37h 31m

$896

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Sun 11/16

8:10 am-4:40 pm

2 stops27h 30m

Rio de Janeiro Santos Dumont

Mon 11/24

1:45 pm-10:16 pm

2 stops37h 31m

$996

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Thu 11/27

12:39 pm-4:40 pm

2 stops23h 01m

Rio de Janeiro Santos Dumont

Sun 12/7

2:50 pm-11:45 am

2 stops25h 55m

$1,231

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Sat 11/15

8:00 am-5:45 pm

2 stops28h 45m

Rio de Janeiro Santos Dumont

Thu 11/27

1:45 pm-12:34 pm

2 stops27h 49m

$1,306

PortlandRio de Janeiro

PDX - SDU

PDXSDU

Portland

Thu 11/27

11:53 am-9:25 pm

2 stops28h 32m

Rio de Janeiro Santos Dumont

Wed 12/10

8:05 pm-7:35 pm

2 stops28h 30m

$1,348

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Mon 12/8

11:30 am-1:15 pm

2 stops20h 45m

Rio de Janeiro Santos Dumont

Tue 12/16

8:05 pm-2:30 pm

2 stops23h 25m

$1,373

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Wed 12/24

12:43 pm-4:55 pm

2 stops47h 12m

Rio de Janeiro Santos Dumont

Thu 1/8

5:40 pm-11:42 pm

2 stops35h 02m

$1,673

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Mon 12/22

10:06 pm-10:25 pm

2 stops19h 19m

Rio de Janeiro Santos Dumont

Wed 12/31

8:25 pm-11:40 pm

2 stops32h 15m

$1,732

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from State of Washington 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 Washington to Rio de Janeiro Santos Dumont?

Air Canada, LATAM Airlines, and United Airlines are the most popular carriers operating from Washington to Rio de Janeiro Santos Dumont

Cheap State of Washington to Rio de Janeiro Santos Dumont Airport flight deals and tips

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

Direct flights

None
There are no direct flights from State of Washington to Rio de Janeiro Santos Dumont Airport. There are no popular flight routes from State of Washington to Rio de Janeiro Santos Dumont Airport.
  • When did momondo last update prices for flights from Washington to Rio de Janeiro Santos Dumont Airport?

    Prices for flights from Washington to Rio de Janeiro Santos Dumont Airport are updated daily.

  • How old do you have to be to fly from Washington 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 Washington to Rio de Janeiro Santos Dumont Airport.

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

    The required travel and health documents for your Rio de Janeiro Santos Dumont Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Rio de Janeiro Santos Dumont Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington to Rio de Janeiro. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to Rio de Janeiro from Washington with this policy.

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

Once you have performed a search for Washington to Rio de Janeiro flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Washington 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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1 adult
Sat 11/8
Sat 11/15

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