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Cheap flights from Washington, D.C. to Rio de Janeiro from $294

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, D.C. to Rio de Janeiro departing on 9/21. 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

Find the cheapest flights from Washington, D.C. to Rio de Janeiro

Cheap round-trip flights

Enter your travel dates to find the best prices.
GOL Logo
5:14 pm - 10:50 am
DCA
-
SDU
15h 36m
2 stops
GOL Logo
6:00 am - 8:21 pm
SDU
-
DCA
16h 21m
2 stops
$657GOL
Sun, Nov 8 - Fri, Nov 13
GOL Logo
5:14 pm - 10:50 am
DCA
-
SDU
15h 36m
2 stops
GOL Logo
6:00 am - 8:21 pm
SDU
-
DCA
16h 21m
2 stops
$669GOL
Sat, Nov 7 - Wed, Nov 11
Delta Logo
1:35 pm - 8:35 am
DCA
-
SDU
42h 00m
2 stops
Delta Logo
8:15 pm - 1:49 pm
SDU
-
DCA
18h 34m
2 stops
$682Delta
Thu, Sep 17 - Sun, Sep 27
LATAM Airlines Logo
2:10 pm - 9:25 am
BWI
-
SDU
17h 15m
2 stops
LATAM Airlines Logo
6:50 pm - 12:27 pm
SDU
-
BWI
19h 37m
2 stops
$694LATAM Airlines
Tue, Dec 1 - Tue, Dec 8
LATAM Airlines Logo
2:00 pm - 9:55 pm
DCA
-
SDU
30h 55m
2 stops
LATAM Airlines Logo
1:55 pm - 11:09 am
SDU
-
DCA
22h 14m
2 stops
$705LATAM Airlines
Tue, Aug 11 - Tue, Aug 18
Multiple Airlines Logo
5:25 pm - 2:10 pm
DCA
-
SDU
19h 45m
2 stops
Multiple Airlines Logo
8:15 pm - 1:49 pm
SDU
-
DCA
18h 34m
2 stops
$720Multiple Airlines
Fri, Sep 18 - Sun, Sep 27
Azul Logo
3:47 pm - 4:30 pm
IAD
-
SDU
23h 43m
2 stops
Azul Logo
7:00 pm - 2:33 pm
SDU
-
IAD
20h 33m
2 stops
$733Azul
Sat, Sep 5 - Thu, Sep 17
Azul Logo
3:47 pm - 6:40 pm
IAD
-
SDU
25h 53m
2 stops
Azul Logo
7:00 pm - 2:40 pm
SDU
-
IAD
20h 40m
2 stops
$757Azul
Tue, Sep 22 - Mon, Sep 28
Delta Logo
2:03 pm - 8:35 am
BWI
-
SDU
17h 32m
2 stops
Delta Logo
8:15 pm - 1:14 pm
SDU
-
BWI
17h 59m
2 stops
$775Delta
Sun, Sep 27 - Tue, Oct 6
Multiple Airlines Logo
12:29 pm - 9:55 pm
IAD
-
SDU
32h 26m
2 stops
Multiple Airlines Logo
7:00 pm - 2:33 pm
SDU
-
IAD
20h 33m
2 stops
$787Multiple Airlines
Mon, Aug 17 - Mon, Aug 24

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Azul flights from Washington, D.C. to Rio de Janeiro Santos Dumont Airport

Our best Azul deals on Washington, D.C. to Rio de Janeiro Santos Dumont Airport flight tickets
Azul
Sep 5
IAD3:47 pmWashington, D.C. Dulles Intl
23h 43m
2 stops
SDU4:30 pmRio de Janeiro Santos Dumont
Sep 17
SDU7:00 pmRio de Janeiro Santos Dumont
20h 33m
2 stops
IAD2:33 pmWashington, D.C. Dulles Intl
$733
Azul
Sep 22
IAD3:47 pmWashington, D.C. Dulles Intl
25h 53m
2 stops
SDU6:40 pmRio de Janeiro Santos Dumont
Sep 28
SDU7:00 pmRio de Janeiro Santos Dumont
20h 40m
2 stops
IAD2:40 pmWashington, D.C. Dulles Intl
$757
Azul
Sep 1
IAD3:47 pmWashington, D.C. Dulles Intl
17h 58m
2 stops
SDU10:45 amRio de Janeiro Santos Dumont
Oct 1
SDU7:00 pmRio de Janeiro Santos Dumont
20h 40m
2 stops
IAD2:40 pmWashington, D.C. Dulles Intl
$774

United Airlines flights from Washington, D.C. to Rio de Janeiro Santos Dumont Airport

Our best United Airlines deals on Washington, D.C. to Rio de Janeiro Santos Dumont Airport flight tickets
United Airlines
Nov 8
IAD10:25 pmWashington, D.C. Dulles Intl
16h 20m
1 stop
SDU4:45 pmRio de Janeiro Santos Dumont
Nov 14
SDU5:30 pmRio de Janeiro Santos Dumont
15h 00m
1 stop
IAD6:30 amWashington, D.C. Dulles Intl
$839
United Airlines
Jul 12
IAD10:30 pmWashington, D.C. Dulles Intl
17h 15m
1 stop
SDU4:45 pmRio de Janeiro Santos Dumont
Jul 27
SDU1:45 pmRio de Janeiro Santos Dumont
17h 40m
1 stop
IAD6:25 amWashington, D.C. Dulles Intl
$840
United Airlines
Sep 17
BWI8:30 amBaltimore/Washington
31h 15m
2 stops
SDU4:45 pmRio de Janeiro Santos Dumont
Sep 21
SDU1:45 pmRio de Janeiro Santos Dumont
28h 58m
2 stops
BWI5:43 pmBaltimore/Washington
$843

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 July 7, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Rio de Janeiro Santos Dumont Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

Sun 11/8

5:14 pm-10:50 am

2 stops15h 36m

Rio de Janeiro Santos Dumont

Fri 11/13

6:00 am-8:21 pm

2 stops16h 21m

$657

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

Sat 11/7

5:14 pm-10:50 am

2 stops15h 36m

Rio de Janeiro Santos Dumont

Wed 11/11

6:00 am-8:21 pm

2 stops16h 21m

$669

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

Thu 9/17

1:35 pm-8:35 am

2 stops42h 00m

Rio de Janeiro Santos Dumont

Sun 9/27

8:15 pm-1:49 pm

2 stops18h 34m

$682

BaltimoreRio de Janeiro

BWI - SDU

BWISDU

Baltimore/Washington

Tue 12/1

2:10 pm-9:25 am

2 stops17h 15m

Rio de Janeiro Santos Dumont

Tue 12/8

6:50 pm-12:27 pm

2 stops19h 37m

$694

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

Tue 8/11

2:00 pm-9:55 pm

2 stops30h 55m

Rio de Janeiro Santos Dumont

Tue 8/18

1:55 pm-11:09 am

2 stops22h 14m

$705

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

Fri 9/18

5:25 pm-2:10 pm

2 stops19h 45m

Rio de Janeiro Santos Dumont

Sun 9/27

8:15 pm-1:49 pm

2 stops18h 34m

$720

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Sat 9/5

3:47 pm-4:30 pm

2 stops23h 43m

Rio de Janeiro Santos Dumont

Thu 9/17

7:00 pm-2:33 pm

2 stops20h 33m

$733

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Tue 9/22

3:47 pm-6:40 pm

2 stops25h 53m

Rio de Janeiro Santos Dumont

Mon 9/28

7:00 pm-2:40 pm

2 stops20h 40m

$757

BaltimoreRio de Janeiro

BWI - SDU

BWISDU

Baltimore/Washington

Sun 9/27

2:03 pm-8:35 am

2 stops17h 32m

Rio de Janeiro Santos Dumont

Tue 10/6

8:15 pm-1:14 pm

2 stops17h 59m

$775

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Mon 8/17

12:29 pm-9:55 pm

2 stops32h 26m

Rio de Janeiro Santos Dumont

Mon 8/24

7:00 pm-2:33 pm

2 stops20h 33m

$787

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 Washington, D.C. 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

Can stopping save me money on Washington, D.C. to Rio de Janeiro Santos Dumont Airport flights?

You could potentially save up to 14% on your flight if you consider stops on a Washington, D.C. to Rio de Janeiro Santos Dumont Airport flight.

When to book flights from Washington, D.C. to Rio de Janeiro Santos Dumont Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. 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 Washington, D.C. to Rio de Janeiro Santos Dumont Airport (WAS to SDU) flight deals and tips

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

Fastest flight time

15h 10m

Direct flights

None
The fastest flight from Washington, D.C. to Rio de Janeiro Santos Dumont Airport takes 15h 10m
There are no direct flights from Washington, D.C. to Rio de Janeiro Santos Dumont Airport. There are no popular flight routes from Washington, D.C. to Rio de Janeiro Santos Dumont Airport.
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Frequently asked questions about flying from Washington, D.C. to Rio de Janeiro Santos Dumont Airport

  • How far is Washington, D.C. to Rio de Janeiro Santos Dumont by plane?

    The distance between Washington, D.C. and Rio de Janeiro Santos Dumont is about 4796.8 mi. In terms of flight time, this usually takes a little over 15h 10m.

  • When did momondo last update prices for flights from Washington, D.C. to Rio de Janeiro Santos Dumont Airport?

    Prices for flights from Washington, D.C. to Rio de Janeiro Santos Dumont Airport were last updated today.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Rio de Janeiro Santos Dumont Airport.

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

    The necessary travel and health documents for your Rio de Janeiro Santos Dumont 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.

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. 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 Washington, D.C. to Rio de Janeiro. Millions of users trust and use momondo every year so you are in good hands.

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

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

How can momondo help me find flights from Washington, D.C. 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 Washington, D.C..

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

Of course. momondo tracks the price of Washington, D.C. to Rio de Janeiro flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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