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Cheap flights from Washington, D.C. to Rio de Janeiro from $302

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 12/29. 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

Enter your travel dates to find the best prices.
LATAM Airlines Logo
6:00 am - 9:25 amIAD-SDU
26h 25m2 stops
LATAM Airlines Logo
2:00 pm - 12:39 pmSDU-IAD
23h 39m2 stops
$560LATAM Airlines
Find Deal
Sun, Mar 8 - Thu, Mar 12
Air Canada Logo
9:55 am - 4:40 pmIAD-SDU
29h 45m2 stops
Air Canada Logo
1:45 pm - 4:21 pmSDU-IAD
27h 36m2 stops
$563Air Canada
Find Deal
Tue, Mar 10 - Mon, Mar 16
Air Canada Logo
4:30 pm - 4:45 pmIAD-SDU
23h 15m2 stops
Air Canada Logo
1:45 pm - 7:40 pmSDU-IAD
30h 55m2 stops
$569Air Canada
Find Deal
Thu, Apr 9 - Mon, Apr 13
Multiple Airlines Logo
4:10 pm - 2:05 pmDCA-SDU
19h 55m2 stops
Multiple Airlines Logo
11:20 am - 3:33 pmSDU-DCA
30h 13m2 stops
$597Multiple Airlines
Find Deal
Sun, Jan 11 - Mon, Jan 26
Multiple Airlines Logo
9:55 am - 4:40 pmIAD-SDU
29h 45m2 stops
Multiple Airlines Logo
1:45 pm - 4:21 pmSDU-IAD
27h 36m2 stops
$623Multiple Airlines
Find Deal
Tue, Mar 10 - Mon, Mar 16
LATAM Airlines Logo
1:02 pm - 11:30 amBWI-SDU
20h 28m2 stops
LATAM Airlines Logo
5:10 pm - 10:06 amSDU-BWI
18h 56m2 stops
$625LATAM Airlines
Find Deal
Mon, Feb 9 - Wed, Feb 18
Air Canada Logo
9:45 am - 2:05 pmIAD-SDU
26h 20m2 stops
Air Canada Logo
11:20 am - 4:24 pmSDU-IAD
31h 04m2 stops
$625Air Canada
Find Deal
Sun, Jan 11 - Mon, Jan 26
Air Canada Logo
6:59 am - 2:30 pmDCA-SDU
29h 31m2 stops
Air Canada Logo
11:20 am - 3:33 pmSDU-DCA
30h 13m2 stops
$629Air Canada
Find Deal
Wed, Jan 21 - Wed, Jan 28
Air Canada Logo
4:30 pm - 2:30 pmIAD-SDU
20h 00m2 stops
Air Canada Logo
11:20 am - 11:35 amSDU-IAD
26h 15m2 stops
$629Air Canada
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Wed, Jan 21 - Wed, Jan 28
United Airlines Logo
5:12 pm - 4:40 pmBWI-SDU
45h 28m2 stops
United Airlines Logo
1:45 pm - 1:50 pmSDU-BWI
26h 05m2 stops
$899United Airlines
Find Deal
Mon, Dec 1 - Mon, Dec 8

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

Our best GOL deals on Washington, D.C. to Rio de Janeiro Santos Dumont Airport flight tickets
GOL
Apr 9
DCA3:44 pmWashington, D.C. Reagan-National
16h 06m
2 stops
SDU8:50 amRio de Janeiro Santos Dumont
Apr 13
SDU6:00 amRio de Janeiro Santos Dumont
18h 05m
2 stops
DCA11:05 pmWashington, D.C. Reagan-National
$662
Find similar
GOL
Mar 22
DCA3:39 pmWashington, D.C. Reagan-National
18h 06m
2 stops
SDU10:45 amRio de Janeiro Santos Dumont
Mar 27
SDU6:00 amRio de Janeiro Santos Dumont
18h 07m
2 stops
DCA11:07 pmWashington, D.C. Reagan-National
$714
Find similar
GOL
May 21
DCA3:40 pmWashington, D.C. Reagan-National
18h 10m
2 stops
SDU10:50 amRio de Janeiro Santos Dumont
May 29
SDU6:00 amRio de Janeiro Santos Dumont
17h 00m
2 stops
DCA10:00 pmWashington, D.C. Reagan-National
$720
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
May 3
DCA9:40 amWashington, D.C. Reagan-National
30h 05m
2 stops
SDU4:45 pmRio de Janeiro Santos Dumont
May 11
SDU1:45 pmRio de Janeiro Santos Dumont
21h 33m
2 stops
DCA10:18 amWashington, D.C. Reagan-National
$563
Find similar
Air Canada
Apr 9
DCA6:50 pmWashington, D.C. Reagan-National
20h 55m
2 stops
SDU4:45 pmRio de Janeiro Santos Dumont
Apr 13
SDU1:45 pmRio de Janeiro Santos Dumont
21h 34m
2 stops
DCA10:19 amWashington, D.C. Reagan-National
$569
Find similar
Air Canada
Mar 12
DCA11:05 amWashington, D.C. Reagan-National
28h 35m
2 stops
SDU4:40 pmRio de Janeiro Santos Dumont
Mar 16
SDU1:45 pmRio de Janeiro Santos Dumont
26h 48m
2 stops
DCA3:33 pmWashington, D.C. Reagan-National
$623
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 26, 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

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Sun 3/8

6:00 am-9:25 am

2 stops26h 25m

Rio de Janeiro Santos Dumont

Thu 3/12

2:00 pm-12:39 pm

2 stops23h 39m

$560

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Tue 3/10

9:55 am-4:40 pm

2 stops29h 45m

Rio de Janeiro Santos Dumont

Mon 3/16

1:45 pm-4:21 pm

2 stops27h 36m

$563

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Thu 4/9

4:30 pm-4:45 pm

2 stops23h 15m

Rio de Janeiro Santos Dumont

Mon 4/13

1:45 pm-7:40 pm

2 stops30h 55m

$569

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

Sun 1/11

4:10 pm-2:05 pm

2 stops19h 55m

Rio de Janeiro Santos Dumont

Mon 1/26

11:20 am-3:33 pm

2 stops30h 13m

$597

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Tue 3/10

9:55 am-4:40 pm

2 stops29h 45m

Rio de Janeiro Santos Dumont

Mon 3/16

1:45 pm-4:21 pm

2 stops27h 36m

$623

BaltimoreRio de Janeiro

BWI - SDU

BWISDU

Baltimore/Washington

Mon 2/9

1:02 pm-11:30 am

2 stops20h 28m

Rio de Janeiro Santos Dumont

Wed 2/18

5:10 pm-10:06 am

2 stops18h 56m

$625

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Sun 1/11

9:45 am-2:05 pm

2 stops26h 20m

Rio de Janeiro Santos Dumont

Mon 1/26

11:20 am-4:24 pm

2 stops31h 04m

$625

Washington, D.C.Rio de Janeiro

DCA - SDU

DCASDU

Washington, D.C. Reagan-National

Wed 1/21

6:59 am-2:30 pm

2 stops29h 31m

Rio de Janeiro Santos Dumont

Wed 1/28

11:20 am-3:33 pm

2 stops30h 13m

$629

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Wed 1/21

4:30 pm-2:30 pm

2 stops20h 00m

Rio de Janeiro Santos Dumont

Wed 1/28

11:20 am-11:35 am

2 stops26h 15m

$629

BaltimoreRio de Janeiro

BWI - SDU

BWISDU

Baltimore/Washington

Mon 12/1

5:12 pm-4:40 pm

2 stops45h 28m

Rio de Janeiro Santos Dumont

Mon 12/8

1:45 pm-1:50 pm

2 stops26h 05m

$899

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

Fastest flight time

16h 05m

Direct flights

None
The fastest flight from Washington, D.C. to Rio de Janeiro Santos Dumont Airport takes 16h 05m
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 15h 20m.

  • 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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