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Cheap flights from Washington, D.C. Dulles Intl Airport to Rio de Janeiro from $280

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 11/12. 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.
LATAM Airlines Logo
12:40 pm - 12:35 pmIAD-SDU
21h 55m2 stops
LATAM Airlines Logo
4:50 pm - 11:43 amSDU-IAD
20h 53m2 stops
$674LATAM Airlines
Find Deal
Sun, Feb 1 - Mon, Feb 16
United Airlines Logo
10:30 pm - 4:40 pmIAD-SDU
16h 10m1 stop
United Airlines Logo
1:45 pm - 11:44 amSDU-IAD
23h 59m2 stops
$765United Airlines
Find Deal
Tue, Dec 2 - Tue, Dec 9
LATAM Airlines Logo
12:19 pm - 1:15 pmIAD-SDU
22h 56m2 stops
LATAM Airlines Logo
2:00 pm - 11:39 amSDU-IAD
23h 39m2 stops
$780LATAM Airlines
Find Deal
Wed, Dec 3 - Tue, Dec 9
United Airlines Logo
10:30 pm - 4:40 pmIAD-SDU
16h 10m1 stop
United Airlines Logo
1:45 pm - 6:35 amSDU-IAD
18h 50m1 stop
$805United Airlines
Find Deal
Tue, Dec 2 - Tue, Dec 9
LATAM Airlines Logo
7:49 pm - 1:15 pmIAD-SDU
39h 26m2 stops
LATAM Airlines Logo
8:05 pm - 11:43 amSDU-IAD
17h 38m2 stops
$814LATAM Airlines
Find Deal
Sun, Jan 18 - Tue, Jan 27
Multiple Airlines Logo
5:45 am - 7:05 amIAD-SDU
23h 20m2 stops
Multiple Airlines Logo
12:00 pm - 4:25 amSDU-IAD
18h 25m2 stops
$865Multiple Airlines
Find Deal
Mon, Jan 19 - Sat, Feb 21
Air Canada Logo
9:00 am - 2:20 pmIAD-SDU
27h 20m2 stops
Air Canada Logo
11:20 am - 4:30 pmSDU-IAD
31h 10m2 stops
$866Air Canada
Find Deal
Wed, Feb 4 - Tue, Feb 10
Multiple Airlines Logo
5:45 am - 8:50 amIAD-SDU
25h 05m2 stops
Multiple Airlines Logo
11:20 am - 4:25 amSDU-IAD
19h 05m2 stops
$900Multiple Airlines
Find Deal
Sun, Jan 18 - Tue, Jan 27
Air Canada Logo
10:06 pm - 2:20 pmIAD-SDU
38h 14m2 stops
Air Canada Logo
11:20 am - 8:54 pmSDU-IAD
35h 34m2 stops
$950Air Canada
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Sun, Feb 1 - Mon, Feb 16
Azul Logo
5:15 pm - 6:10 pmIAD-SDU
22h 55m2 stops
Azul Logo
5:25 pm - 3:04 pmSDU-IAD
23h 39m2 stops
$1,003Azul
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Tue, Jan 20 - Tue, Jan 27

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
Feb 1
IAD12:40 pmWashington, D.C. Dulles Intl
21h 55m
2 stops
SDU12:35 pmRio de Janeiro Santos Dumont
Feb 16
SDU4:50 pmRio de Janeiro Santos Dumont
20h 53m
2 stops
IAD11:43 amWashington, D.C. Dulles Intl
$674
Find similar
LATAM Airlines
Dec 3
IAD12:19 pmWashington, D.C. Dulles Intl
22h 56m
2 stops
SDU1:15 pmRio de Janeiro Santos Dumont
Dec 9
SDU2:00 pmRio de Janeiro Santos Dumont
23h 39m
2 stops
IAD11:39 amWashington, D.C. Dulles Intl
$780
Find similar
LATAM Airlines
Jan 18
IAD7:49 pmWashington, D.C. Dulles Intl
39h 26m
2 stops
SDU1:15 pmRio de Janeiro Santos Dumont
Jan 27
SDU8:05 pmRio de Janeiro Santos Dumont
17h 38m
2 stops
IAD11:43 amWashington, D.C. Dulles Intl
$814
Find similar

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

Our best Air Canada deals on Washington, D.C. Dulles Intl Airport to Rio de Janeiro Santos Dumont Airport flight tickets
Air Canada
Feb 4
IAD9:00 amWashington, D.C. Dulles Intl
27h 20m
2 stops
SDU2:20 pmRio de Janeiro Santos Dumont
Feb 10
SDU11:20 amRio de Janeiro Santos Dumont
31h 10m
2 stops
IAD4:30 pmWashington, D.C. Dulles Intl
$866
Find similar
Air Canada
Feb 1
IAD10:06 pmWashington, D.C. Dulles Intl
38h 14m
2 stops
SDU2:20 pmRio de Janeiro Santos Dumont
Feb 16
SDU11:20 amRio de Janeiro Santos Dumont
35h 34m
2 stops
IAD8:54 pmWashington, D.C. Dulles Intl
$950
Find similar
Air Canada
Feb 1
IAD9:00 amWashington, D.C. Dulles Intl
27h 20m
2 stops
SDU2:20 pmRio de Janeiro Santos Dumont
Feb 11
SDU11:20 amRio de Janeiro Santos Dumont
35h 34m
2 stops
IAD8:54 pmWashington, D.C. Dulles Intl
$974
Find similar

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 November 6, 2025.
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

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Sun 2/1

12:40 pm-12:35 pm

2 stops21h 55m

Rio de Janeiro Santos Dumont

Mon 2/16

4:50 pm-11:43 am

2 stops20h 53m

$674

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Tue 12/2

10:30 pm-4:40 pm

1 stop16h 10m

Rio de Janeiro Santos Dumont

Tue 12/9

1:45 pm-11:44 am

2 stops23h 59m

$765

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Wed 12/3

12:19 pm-1:15 pm

2 stops22h 56m

Rio de Janeiro Santos Dumont

Tue 12/9

2:00 pm-11:39 am

2 stops23h 39m

$780

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Tue 12/2

10:30 pm-4:40 pm

1 stop16h 10m

Rio de Janeiro Santos Dumont

Tue 12/9

1:45 pm-6:35 am

1 stop18h 50m

$805

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Sun 1/18

7:49 pm-1:15 pm

2 stops39h 26m

Rio de Janeiro Santos Dumont

Tue 1/27

8:05 pm-11:43 am

2 stops17h 38m

$814

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Mon 1/19

5:45 am-7:05 am

2 stops23h 20m

Rio de Janeiro Santos Dumont

Sat 2/21

12:00 pm-4:25 am

2 stops18h 25m

$865

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Wed 2/4

9:00 am-2:20 pm

2 stops27h 20m

Rio de Janeiro Santos Dumont

Tue 2/10

11:20 am-4:30 pm

2 stops31h 10m

$866

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Sun 1/18

5:45 am-8:50 am

2 stops25h 05m

Rio de Janeiro Santos Dumont

Tue 1/27

11:20 am-4:25 am

2 stops19h 05m

$900

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Sun 2/1

10:06 pm-2:20 pm

2 stops38h 14m

Rio de Janeiro Santos Dumont

Mon 2/16

11:20 am-8:54 pm

2 stops35h 34m

$950

Washington, D.C.Rio de Janeiro

IAD - SDU

IADSDU

Washington, D.C. Dulles Intl

Tue 1/20

5:15 pm-6:10 pm

2 stops22h 55m

Rio de Janeiro Santos Dumont

Tue 1/27

5:25 pm-3:04 pm

2 stops23h 39m

$1,003

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

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. Dulles Intl Airport 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. Dulles Intl Airport 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. Dulles Intl Airport 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. 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

Direct flights

None
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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  • 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 05m.

  • 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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