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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 5/10. 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. Dulles Intl Airport to Rio de Janeiro

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
1:32 pm - 1:10 pm
IAD
-
SDU
22h 38m
2 stops
Delta Logo
8:15 pm - 6:53 pm
SDU
-
IAD
23h 38m
2 stops
$723Delta
Sat, May 23 - Tue, Jun 2
LATAM Airlines Logo
4:00 pm - 1:10 pm
IAD
-
SDU
20h 10m
2 stops
LATAM Airlines Logo
8:15 pm - 11:49 am
SDU
-
IAD
16h 34m
2 stops
$755LATAM Airlines
Sat, Jul 4 - Mon, Jul 13
LATAM Airlines Logo
6:36 pm - 1:10 pm
IAD
-
SDU
41h 34m
2 stops
LATAM Airlines Logo
1:55 pm - 11:49 am
SDU
-
IAD
22h 54m
2 stops
$799LATAM Airlines
Fri, Jul 10 - Wed, Jul 15
LATAM Airlines Logo
12:29 pm - 1:10 pm
IAD
-
SDU
23h 41m
2 stops
LATAM Airlines Logo
1:55 pm - 11:49 am
SDU
-
IAD
22h 54m
2 stops
$809LATAM Airlines
Fri, Jul 3 - Sat, Jul 18
LATAM Airlines Logo
8:27 am - 8:35 am
IAD
-
SDU
23h 08m
2 stops
LATAM Airlines Logo
1:55 pm - 11:49 am
SDU
-
IAD
22h 54m
2 stops
$810LATAM Airlines
Sun, Jul 12 - Sat, Jul 18
LATAM Airlines Logo
7:14 pm - 1:10 pm
IAD
-
SDU
40h 56m
2 stops
LATAM Airlines Logo
1:55 pm - 11:48 am
SDU
-
IAD
22h 53m
2 stops
$812LATAM Airlines
Fri, Jun 12 - Thu, Jun 18
LATAM Airlines Logo
1:32 pm - 2:40 pm
IAD
-
SDU
24h 08m
2 stops
LATAM Airlines Logo
1:55 pm - 12:18 pm
SDU
-
IAD
23h 23m
2 stops
$816LATAM Airlines
Mon, May 11 - Fri, May 29
United Airlines Logo
10:30 pm - 4:45 pm
IAD
-
SDU
17h 15m
1 stop
United Airlines Logo
1:45 pm - 6:25 am
SDU
-
IAD
17h 40m
1 stop
$829United Airlines
Sun, May 10 - Tue, May 26
United Airlines Logo
10:30 pm - 4:45 pm
IAD
-
SDU
17h 15m
1 stop
United Airlines Logo
1:45 pm - 6:25 am
SDU
-
IAD
17h 40m
1 stop
$830United Airlines
Sun, May 31 - Thu, Jun 11
United Airlines Logo
10:30 pm - 4:45 pm
IAD
-
SDU
17h 15m
1 stop
United Airlines Logo
2:50 pm - 6:25 am
SDU
-
IAD
16h 35m
1 stop
$831United Airlines
Sun, May 31 - Sun, Jun 14

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

Our best LATAM Airlines deals on Washington, D.C. Dulles Intl Airport to Rio de Janeiro Santos Dumont Airport flight tickets
LATAM Airlines
Sep 14
IAD4:00 pmWashington, D.C. Dulles Intl
15h 35m
2 stops
SDU8:35 amRio de Janeiro Santos Dumont
Sep 21
SDU1:55 pmRio de Janeiro Santos Dumont
22h 56m
2 stops
IAD11:51 amWashington, D.C. Dulles Intl
$715
LATAM Airlines
Oct 25
IAD1:00 pmWashington, D.C. Dulles Intl
18h 35m
2 stops
SDU8:35 amRio de Janeiro Santos Dumont
Nov 1
SDU8:15 pmRio de Janeiro Santos Dumont
20h 26m
2 stops
IAD2:41 pmWashington, D.C. Dulles Intl
$724
LATAM Airlines
Nov 1
IAD6:00 amWashington, D.C. Dulles Intl
24h 35m
2 stops
SDU8:35 amRio de Janeiro Santos Dumont
Nov 9
SDU8:15 pmRio de Janeiro Santos Dumont
17h 44m
2 stops
IAD11:59 amWashington, D.C. Dulles Intl
$745

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

Our best Delta deals on Washington, D.C. Dulles Intl Airport to Rio de Janeiro Santos Dumont Airport flight tickets
Delta
May 23
IAD1:32 pmWashington, D.C. Dulles Intl
22h 38m
2 stops
SDU1:10 pmRio de Janeiro Santos Dumont
Jun 2
SDU8:15 pmRio de Janeiro Santos Dumont
23h 38m
2 stops
IAD6:53 pmWashington, D.C. Dulles Intl
$723
Delta
Sep 26
IAD5:30 pmWashington, D.C. Dulles Intl
42h 40m
2 stops
SDU1:10 pmRio de Janeiro Santos Dumont
Oct 3
SDU8:15 pmRio de Janeiro Santos Dumont
16h 36m
2 stops
IAD11:51 amWashington, D.C. Dulles Intl
$781
Delta
Sep 23
IAD12:30 pmWashington, D.C. Dulles Intl
23h 40m
2 stops
SDU1:10 pmRio de Janeiro Santos Dumont
Oct 3
SDU8:15 pmRio de Janeiro Santos Dumont
24h 01m
2 stops
IAD7:16 pmWashington, D.C. Dulles Intl
$833

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 May 7, 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

Sat 5/23

1:32 pm-1:10 pm

2 stops22h 38m

Rio de Janeiro Santos Dumont

Tue 6/2

8:15 pm-6:53 pm

2 stops23h 38m

$723

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Sat 7/4

4:00 pm-1:10 pm

2 stops20h 10m

Rio de Janeiro Santos Dumont

Mon 7/13

8:15 pm-11:49 am

2 stops16h 34m

$755

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Fri 7/10

6:36 pm-1:10 pm

2 stops41h 34m

Rio de Janeiro Santos Dumont

Wed 7/15

1:55 pm-11:49 am

2 stops22h 54m

$799

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Fri 7/3

12:29 pm-1:10 pm

2 stops23h 41m

Rio de Janeiro Santos Dumont

Sat 7/18

1:55 pm-11:49 am

2 stops22h 54m

$809

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Sun 7/12

8:27 am-8:35 am

2 stops23h 08m

Rio de Janeiro Santos Dumont

Sat 7/18

1:55 pm-11:49 am

2 stops22h 54m

$810

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Fri 6/12

7:14 pm-1:10 pm

2 stops40h 56m

Rio de Janeiro Santos Dumont

Thu 6/18

1:55 pm-11:48 am

2 stops22h 53m

$812

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Mon 5/11

1:32 pm-2:40 pm

2 stops24h 08m

Rio de Janeiro Santos Dumont

Fri 5/29

1:55 pm-12:18 pm

2 stops23h 23m

$816

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Sun 5/10

10:30 pm-4:45 pm

1 stop17h 15m

Rio de Janeiro Santos Dumont

Tue 5/26

1:45 pm-6:25 am

1 stop17h 40m

$829

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Sun 5/31

10:30 pm-4:45 pm

1 stop17h 15m

Rio de Janeiro Santos Dumont

Thu 6/11

1:45 pm-6:25 am

1 stop17h 40m

$830
Quickest round-trip

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Sun 5/31

10:30 pm-4:45 pm

1 stop17h 15m

Rio de Janeiro Santos Dumont

Sun 6/14

2:50 pm-6:25 am

1 stop16h 35m

$831

Flights are sorted by cheapest round-trip flights first.

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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 67% 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 37m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Rio de Janeiro Santos Dumont Airport takes 16h 37m
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.
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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 37m.

  • 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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