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Cheap flights from Washington, D.C. to Rio de Janeiro from $295

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 3/16. 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

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Multiple Airlines Logo
4:30 pm - 8:20 pmBWI-SDU
25h 50m3 stops
Multiple Airlines Logo
12:50 pm - 11:17 pmSDU-BWI
36h 27m3 stops
$601Multiple Airlines
Find Deal
Wed, Feb 25 - Tue, Mar 3
Delta Logo
7:01 pm - 1:15 pmBWI-SDU
16h 14m2 stops
Delta Logo
8:05 pm - 11:56 amSDU-BWI
17h 51m2 stops
$620Delta
Find Deal
Wed, Feb 25 - Tue, Mar 3
LATAM Airlines Logo
10:40 am - 1:15 pmBWI-SDU
24h 35m2 stops
LATAM Airlines Logo
1:40 pm - 10:08 amSDU-BWI
22h 28m2 stops
$654LATAM Airlines
Find Deal
Wed, Feb 25 - Tue, Mar 3
LATAM Airlines Logo
2:10 pm - 4:00 pmBWI-SDU
24h 50m2 stops
LATAM Airlines Logo
8:20 pm - 11:07 amSDU-BWI
15h 47m2 stops
$659LATAM Airlines
Find Deal
Mon, Mar 30 - Tue, Apr 7
United Airlines Logo
10:30 pm - 4:45 pmIAD-SDU
16h 15m1 stop
United Airlines Logo
1:45 pm - 6:35 amSDU-IAD
18h 50m1 stop
$705United Airlines
Find Deal
Mon, Nov 24 - Wed, Dec 3
United Airlines Logo
6:15 am - 4:45 pmBWI-SDU
32h 30m2 stops
United Airlines Logo
1:45 pm - 1:50 pmSDU-BWI
26h 05m2 stops
$710United Airlines
Find Deal
Mon, Nov 24 - Wed, Dec 3
GOL Logo
3:59 pm - 10:25 pmDCA-SDU
28h 26m2 stops
GOL Logo
3:05 pm - 9:07 amSDU-DCA
20h 02m2 stops
$844GOL
Find Deal
Tue, Feb 10 - Tue, Feb 17
Air Canada Logo
9:40 am - 2:30 pmDCA-SDU
26h 50m2 stops
Air Canada Logo
11:20 am - 8:55 amSDU-DCA
23h 35m2 stops
$902Air Canada
Find Deal
Wed, Jan 14 - Tue, Jan 20
GOL Logo
11:38 am - 10:25 pmDCA-SDU
32h 47m2 stops
GOL Logo
6:00 am - 8:14 pmSDU-DCA
16h 14m2 stops
$954GOL
Find Deal
Tue, Feb 10 - Tue, Feb 24
Air Canada Logo
6:59 am - 2:20 pmDCA-SDU
29h 21m2 stops
Air Canada Logo
11:20 am - 7:59 pmSDU-DCA
34h 39m2 stops
$956Air Canada
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Wed, Feb 4 - Tue, Feb 10

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

Our best LATAM Airlines deals on Washington, D.C. to Rio de Janeiro Santos Dumont Airport flight tickets
LATAM Airlines
Feb 25
BWI10:40 amBaltimore/Washington
24h 35m
2 stops
SDU1:15 pmRio de Janeiro Santos Dumont
Mar 3
SDU1:40 pmRio de Janeiro Santos Dumont
22h 28m
2 stops
BWI10:08 amBaltimore/Washington
$654
Find similar
LATAM Airlines
Mar 30
BWI2:10 pmBaltimore/Washington
24h 50m
2 stops
SDU4:00 pmRio de Janeiro Santos Dumont
Apr 7
SDU8:20 pmRio de Janeiro Santos Dumont
15h 47m
2 stops
BWI11:07 amBaltimore/Washington
$659
Find similar
LATAM Airlines
Mar 30
BWI2:10 pmBaltimore/Washington
22h 10m
2 stops
SDU1:20 pmRio de Janeiro Santos Dumont
Apr 7
SDU8:20 pmRio de Janeiro Santos Dumont
15h 47m
2 stops
BWI11:07 amBaltimore/Washington
$660
Find similar

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

Our best Air Canada deals on Washington, D.C. to Rio de Janeiro Santos Dumont Airport flight tickets
Air Canada
Jan 14
DCA9:40 amWashington, D.C. Reagan-National
26h 50m
2 stops
SDU2:30 pmRio de Janeiro Santos Dumont
Jan 20
SDU11:20 amRio de Janeiro Santos Dumont
23h 35m
2 stops
DCA8:55 amWashington, D.C. Reagan-National
$902
Find similar
Air Canada
Nov 25
IAD9:45 amWashington, D.C. Dulles Intl
29h 00m
2 stops
SDU4:45 pmRio de Janeiro Santos Dumont
Dec 2
SDU1:45 pmRio de Janeiro Santos Dumont
33h 14m
2 stops
IAD8:59 pmWashington, D.C. Dulles Intl
$943
Find similar
Air Canada
Feb 4
DCA6:59 amWashington, D.C. Reagan-National
29h 21m
2 stops
SDU2:20 pmRio de Janeiro Santos Dumont
Feb 10
SDU11:20 amRio de Janeiro Santos Dumont
34h 39m
2 stops
DCA7:59 pmWashington, D.C. Reagan-National
$956
Find similar

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 November 13, 2025.
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

BaltimoreRio de Janeiro

BWI - SDU

BWISDU

Baltimore/Washington

Wed 2/25

4:30 pm-8:20 pm

3 stops25h 50m

Rio de Janeiro Santos Dumont

Tue 3/3

12:50 pm-11:17 pm

3 stops36h 27m

$601

BaltimoreRio de Janeiro

BWI - SDU

BWISDU

Baltimore/Washington

Wed 2/25

7:01 pm-1:15 pm

2 stops16h 14m

Rio de Janeiro Santos Dumont

Tue 3/3

8:05 pm-11:56 am

2 stops17h 51m

$620

BaltimoreRio de Janeiro

BWI - SDU

BWISDU

Baltimore/Washington

Wed 2/25

10:40 am-1:15 pm

2 stops24h 35m

Rio de Janeiro Santos Dumont

Tue 3/3

1:40 pm-10:08 am

2 stops22h 28m

$654

BaltimoreRio de Janeiro

BWI - SDU

BWISDU

Baltimore/Washington

Mon 3/30

2:10 pm-4:00 pm

2 stops24h 50m

Rio de Janeiro Santos Dumont

Tue 4/7

8:20 pm-11:07 am

2 stops15h 47m

$659

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Mon 11/24

10:30 pm-4:45 pm

1 stop16h 15m

Rio de Janeiro Santos Dumont

Wed 12/3

1:45 pm-6:35 am

1 stop18h 50m

$705

BaltimoreRio de Janeiro

BWI - SDU

BWISDU

Baltimore/Washington

Mon 11/24

6:15 am-4:45 pm

2 stops32h 30m

Rio de Janeiro Santos Dumont

Wed 12/3

1:45 pm-1:50 pm

2 stops26h 05m

$710

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

Tue 2/10

3:59 pm-10:25 pm

2 stops28h 26m

Rio de Janeiro Santos Dumont

Tue 2/17

3:05 pm-9:07 am

2 stops20h 02m

$844

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

Wed 1/14

9:40 am-2:30 pm

2 stops26h 50m

Rio de Janeiro Santos Dumont

Tue 1/20

11:20 am-8:55 am

2 stops23h 35m

$902

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

Tue 2/10

11:38 am-10:25 pm

2 stops32h 47m

Rio de Janeiro Santos Dumont

Tue 2/24

6:00 am-8:14 pm

2 stops16h 14m

$954

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

Wed 2/4

6:59 am-2:20 pm

2 stops29h 21m

Rio de Janeiro Santos Dumont

Tue 2/10

11:20 am-7:59 pm

2 stops34h 39m

$956

Flights are sorted by cheapest round-trip flights first.

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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

What is the cheapest day to depart on your flight to Rio de Janeiro Santos Dumont Airport?

On average, the least expensive day to fly to Rio de Janeiro Santos Dumont Airport from Washington, D.C. is on a Sunday. momondo users have found tickets for Sunday departures for as low as $1,021. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Wednesday is the most expensive day to depart from Washington, D.C. because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,358.

What is the cheapest time of day to depart on your flight to Rio de Janeiro Santos Dumont Airport?

Flying to Rio de Janeiro Santos Dumont Airport from Washington, D.C. in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $973 when looking at flights departing in the afternoon. Try not to purchase tickets at noon because they tend to be around $1,358. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You could potentially save up to 3% 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

Direct flights

None
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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  • 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 14h 05m.

  • 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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