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Cheap flights from Washington, D.C. Dulles Intl Airport to Rio de Janeiro from $322

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. Dulles Intl Airport to Rio de Janeiro departing on 10/26. 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. Dulles Intl Airport to Rio de Janeiro

Cheap round-trip flights

Enter your travel dates to find the best prices.
LATAM Airlines Logo
10:05 am - 3:30 pm
IAD
-
SDU
27h 25m
2 stops
LATAM Airlines Logo
6:50 pm - 9:11 am
SDU
-
IAD
16h 21m
2 stops
$721LATAM Airlines
Mon, Nov 23 - Tue, Nov 24
LATAM Airlines Logo
10:05 am - 9:25 am
IAD
-
SDU
21h 20m
2 stops
LATAM Airlines Logo
10:05 am - 11:59 am
SDU
-
IAD
27h 54m
2 stops
$727LATAM Airlines
Wed, Nov 18 - Wed, Nov 25
LATAM Airlines Logo
10:05 am - 11:55 am
IAD
-
SDU
23h 50m
2 stops
LATAM Airlines Logo
10:05 am - 9:11 am
SDU
-
IAD
25h 06m
2 stops
$733LATAM Airlines
Mon, Nov 23 - Wed, Nov 25
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
Azul Logo
12:35 pm - 1:05 pm
IAD
-
SDU
23h 30m
2 stops
Azul Logo
5:30 pm - 2:33 pm
SDU
-
IAD
22h 03m
2 stops
$774Azul
Mon, Aug 24 - Thu, Aug 27
Azul Logo
8:45 am - 9:15 am
IAD
-
SDU
23h 30m
2 stops
Azul Logo
7:00 pm - 2:33 pm
SDU
-
IAD
20h 33m
2 stops
$779Azul
Wed, Aug 19 - Wed, Aug 26
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
Azul Logo
12:35 pm - 9:15 am
IAD
-
SDU
19h 40m
2 stops
Azul Logo
7:00 pm - 2:33 pm
SDU
-
IAD
20h 33m
2 stops
$799Azul
Mon, Aug 24 - Thu, Aug 27
Azul Logo
12:35 pm - 1:05 pm
IAD
-
SDU
23h 30m
2 stops
Azul Logo
5:30 pm - 2:33 pm
SDU
-
IAD
22h 03m
2 stops
$800Azul
Mon, Aug 24 - Thu, Aug 27
Azul Logo
12:35 pm - 9:15 am
IAD
-
SDU
19h 40m
2 stops
Azul Logo
5:30 pm - 2:40 pm
SDU
-
IAD
22h 10m
2 stops
$822Azul
Tue, Oct 13 - Tue, Oct 20

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

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport 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
Nov 4
IAD1:00 pmWashington, D.C. Dulles Intl
25h 45m
2 stops
SDU4:45 pmRio de Janeiro Santos Dumont
Nov 11
SDU1:45 pmRio de Janeiro Santos Dumont
18h 45m
1 stop
IAD6:30 amWashington, D.C. Dulles Intl
$843
United Airlines
Dec 1
IAD10:25 pmWashington, D.C. Dulles Intl
16h 20m
1 stop
SDU4:45 pmRio de Janeiro Santos Dumont
Dec 6
SDU2:50 pmRio de Janeiro Santos Dumont
25h 13m
2 stops
IAD2:03 pmWashington, D.C. Dulles Intl
$849

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

Our best Azul deals on Washington, D.C. Dulles Intl Airport to Rio de Janeiro Santos Dumont Airport flight tickets
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
Aug 24
IAD12:35 pmWashington, D.C. Dulles Intl
23h 30m
2 stops
SDU1:05 pmRio de Janeiro Santos Dumont
Aug 27
SDU5:30 pmRio de Janeiro Santos Dumont
22h 03m
2 stops
IAD2:33 pmWashington, D.C. Dulles Intl
$774
Azul
Aug 19
IAD8:45 amWashington, D.C. Dulles Intl
23h 30m
2 stops
SDU9:15 amRio de Janeiro Santos Dumont
Aug 26
SDU7:00 pmRio de Janeiro Santos Dumont
20h 33m
2 stops
IAD2:33 pmWashington, D.C. Dulles Intl
$779

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport 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 5, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Rio de Janeiro Santos Dumont Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Mon 11/23

10:05 am-3:30 pm

2 stops27h 25m

Rio de Janeiro Santos Dumont

Tue 11/24

6:50 pm-9:11 am

2 stops16h 21m

$721

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Wed 11/18

10:05 am-9:25 am

2 stops21h 20m

Rio de Janeiro Santos Dumont

Wed 11/25

10:05 am-11:59 am

2 stops27h 54m

$727

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Mon 11/23

10:05 am-11:55 am

2 stops23h 50m

Rio de Janeiro Santos Dumont

Wed 11/25

10:05 am-9:11 am

2 stops25h 06m

$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

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Mon 8/24

12:35 pm-1:05 pm

2 stops23h 30m

Rio de Janeiro Santos Dumont

Thu 8/27

5:30 pm-2:33 pm

2 stops22h 03m

$774

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Wed 8/19

8:45 am-9:15 am

2 stops23h 30m

Rio de Janeiro Santos Dumont

Wed 8/26

7:00 pm-2:33 pm

2 stops20h 33m

$779

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
Quickest round-trip

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Mon 8/24

12:35 pm-9:15 am

2 stops19h 40m

Rio de Janeiro Santos Dumont

Thu 8/27

7:00 pm-2:33 pm

2 stops20h 33m

$799

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Mon 8/24

12:35 pm-1:05 pm

2 stops23h 30m

Rio de Janeiro Santos Dumont

Thu 8/27

5:30 pm-2:33 pm

2 stops22h 03m

$800

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Tue 10/13

12:35 pm-9:15 am

2 stops19h 40m

Rio de Janeiro Santos Dumont

Tue 10/20

5:30 pm-2:40 pm

2 stops22h 10m

$822

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Rio de Janeiro from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to Rio de Janeiro Santos Dumont Airport flights?

You could potentially save up to 27% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Rio de Janeiro Santos Dumont Airport flight.

When to book flights from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport 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. Dulles Intl Airport to Rio de Janeiro Santos Dumont Airport (IAD to SDU) flight deals and tips

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

Fastest flight time

16h 20m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Rio de Janeiro Santos Dumont Airport takes 16h 20m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Rio de Janeiro Santos Dumont Airport. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Rio de Janeiro Santos Dumont Airport.
Search flight deals

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Rio de Janeiro Santos Dumont Airport

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

    Washington, D.C. Dulles Intl and Rio de Janeiro Santos Dumont are 4811.5 mi apart from one another. In terms of flight time, this usually takes a little over 16h 20m.

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

    Prices for flights from Washington, D.C. Dulles Intl Airport to Rio de Janeiro Santos Dumont Airport are updated daily.

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

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

    The travel and health documents required for your trip to Rio de Janeiro Santos Dumont Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Rio de Janeiro Santos Dumont Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

It is quick and easy to find Washington, D.C. to Rio de Janeiro flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Rio de Janeiro that suits you.

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

momondo does allow users to show only those flights to Rio de Janeiro from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

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?

If you are not ready to book a flight from Washington, D.C. 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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