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Cheap flights from Washington, D.C. to Rio de Janeiro from $274

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 12/4. 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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Find the cheapest flights from Washington, D.C. to Rio de Janeiro

Cheap round-trip flights

LATAM Airlines Logo
2:40 pm - 11:05 amDCA-SDU
19h 25m2 stops
LATAM Airlines Logo
8:05 pm - 11:30 amSDU-DCA
17h 25m2 stops
$615LATAM Airlines
Find Deal
lun., oct. 20 - dom., nov. 2
Air Canada Logo
9:45 am - 2:20 pmIAD-SDU
26h 35m2 stops
Air Canada Logo
11:25 am - 9:05 pmSDU-IAD
35h 40m2 stops
$629Air Canada
Find Deal
dom., feb. 15 - mar., feb. 24
Logo
5:45 am - 2:20 pmIAD-SDU
31h 35m3 stops
Logo
11:30 am - 5:35 amSDU-IAD
19h 05m2 stops
$652
Find Deal
mar., oct. 14 - mar., oct. 21
LATAM Airlines Logo
6:21 pm - 1:15 pmBWI-SDU
16h 54m2 stops
LATAM Airlines Logo
8:05 pm - 10:12 amSDU-BWI
16h 07m2 stops
$660LATAM Airlines
Find Deal
lun., dic. 1 - dom., dic. 14
Logo
8:21 pm - 10:25 pmBWI-SDU
25h 04m2 stops
Logo
8:25 am - 11:33 pmSDU-BWI
40h 08m3 stops
$661
Find Deal
lun., oct. 13 - dom., oct. 26
United Airlines Logo
11:30 pm - 4:45 pmIAD-SDU
16h 15m1 stop
United Airlines Logo
1:45 pm - 6:35 amSDU-IAD
18h 50m1 stop
$745United Airlines
Find Deal
mar., oct. 28 - lun., nov. 3
United Airlines Logo
10:35 pm - 2:20 pmIAD-SDU
14h 45m1 stop
United Airlines Logo
2:50 pm - 11:49 amSDU-IAD
21h 59m2 stops
$755United Airlines
Find Deal
lun., oct. 13 - dom., oct. 26
Delta Logo
12:19 pm - 1:15 pmIAD-SDU
22h 56m2 stops
Delta Logo
8:05 pm - 3:17 pmSDU-IAD
21h 12m2 stops
$875Delta
Find Deal
lun., dic. 15 - mié., dic. 31
GOL Logo
5:55 pm - 4:50 pmDCA-SDU
21h 55m2 stops
GOL Logo
11:35 am - 11:06 pmSDU-DCA
36h 31m2 stops
$904GOL
Find Deal
mié., oct. 1 - dom., oct. 5
GOL Logo
5:55 pm - 4:50 pmDCA-SDU
21h 55m2 stops
GOL Logo
6:10 am - 11:59 pmSDU-DCA
18h 49m2 stops
$951GOL
Find Deal
mié., oct. 1 - sáb., oct. 18

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
Oct 20
DCA2:40 pmWashington, D.C. Reagan-National
19h 25m
2 stops
SDU11:05 amRio de Janeiro Santos Dumont
Nov 2
SDU8:05 pmRio de Janeiro Santos Dumont
17h 25m
2 stops
DCA11:30 amWashington, D.C. Reagan-National
$615
Find similar
LATAM Airlines
Dec 1
BWI6:21 pmBaltimore/Washington
16h 54m
2 stops
SDU1:15 pmRio de Janeiro Santos Dumont
Dec 14
SDU8:05 pmRio de Janeiro Santos Dumont
16h 07m
2 stops
BWI10:12 amBaltimore/Washington
$660
Find similar
LATAM Airlines
Nov 5
DCA2:40 pmWashington, D.C. Reagan-National
40h 45m
2 stops
SDU9:25 amRio de Janeiro Santos Dumont
Nov 10
SDU2:00 pmRio de Janeiro Santos Dumont
49h 58m
2 stops
DCA1:58 pmWashington, D.C. Reagan-National
$662
Find similar

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

Our best Delta deals on Washington, D.C. to Rio de Janeiro Santos Dumont Airport flight tickets
Delta
Dec 15
IAD12:19 pmWashington, D.C. Dulles Intl
22h 56m
2 stops
SDU1:15 pmRio de Janeiro Santos Dumont
Dec 31
SDU8:05 pmRio de Janeiro Santos Dumont
21h 12m
2 stops
IAD3:17 pmWashington, D.C. Dulles Intl
$875
Find similar
Delta
Sep 16
DCA2:55 pmWashington, D.C. Reagan-National
17h 40m
2 stops
SDU9:35 amRio de Janeiro Santos Dumont
Sep 20
SDU8:20 pmRio de Janeiro Santos Dumont
18h 40m
2 stops
DCA2:00 pmWashington, D.C. Reagan-National
$1,213
Find similar
Delta
Sep 29
BWI1:50 pmBaltimore/Washington
18h 45m
2 stops
SDU9:35 amRio de Janeiro Santos Dumont
Oct 7
SDU8:20 pmRio de Janeiro Santos Dumont
17h 25m
2 stops
BWI12:45 pmBaltimore/Washington
$4,058
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 septiembre 15, 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

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

lun. 10/20

2:40 pm-11:05 am

2 stops19h 25m

Rio de Janeiro Santos Dumont

dom. 11/2

8:05 pm-11:30 am

2 stops17h 25m

$615

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

dom. 2/15

9:45 am-2:20 pm

2 stops26h 35m

Rio de Janeiro Santos Dumont

mar. 2/24

11:25 am-9:05 pm

2 stops35h 40m

$629

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

mar. 10/14

5:45 am-2:20 pm

3 stops31h 35m

Rio de Janeiro Santos Dumont

mar. 10/21

11:30 am-5:35 am

2 stops19h 05m

$652

BaltimoreRio de Janeiro

BWI - SDU

BWISDU

Baltimore/Washington

lun. 12/1

6:21 pm-1:15 pm

2 stops16h 54m

Rio de Janeiro Santos Dumont

dom. 12/14

8:05 pm-10:12 am

2 stops16h 07m

$660

BaltimoreRio de Janeiro

BWI - SDU

BWISDU

Baltimore/Washington

lun. 10/13

8:21 pm-10:25 pm

2 stops25h 04m

Rio de Janeiro Santos Dumont

dom. 10/26

8:25 am-11:33 pm

3 stops40h 08m

$661

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

mar. 10/28

11:30 pm-4:45 pm

1 stop16h 15m

Rio de Janeiro Santos Dumont

lun. 11/3

1:45 pm-6:35 am

1 stop18h 50m

$745

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

lun. 10/13

10:35 pm-2:20 pm

1 stop14h 45m

Rio de Janeiro Santos Dumont

dom. 10/26

2:50 pm-11:49 am

2 stops21h 59m

$755

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

lun. 12/15

12:19 pm-1:15 pm

2 stops22h 56m

Rio de Janeiro Santos Dumont

mié. 12/31

8:05 pm-3:17 pm

2 stops21h 12m

$875

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

mié. 10/1

5:55 pm-4:50 pm

2 stops21h 55m

Rio de Janeiro Santos Dumont

dom. 10/5

11:35 am-11:06 pm

2 stops36h 31m

$904

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

mié. 10/1

5:55 pm-4:50 pm

2 stops21h 55m

Rio de Janeiro Santos Dumont

sáb. 10/18

6:10 am-11:59 pm

2 stops18h 49m

$951

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 45m.

  • 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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