In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What is the cheapest time of day to fly from GIG to IAD?

When flying from Rio de Janeiro–Galeão Intl Airport to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Rio de Janeiro–Galeão Intl Airport-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Rio de Janeiro–Galeão Intl Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Rio de Janeiro–Galeão Intl Airport-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Rio de Janeiro–Galeão Intl Airport-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Rio de Janeiro–Galeão Intl Airport-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

How can I find direct flights from Rio de Janeiro–Galeão Intl to Dulles Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rio de Janeiro–Galeão Intl to Dulles Intl.

Can I find deals for business class flights from Rio de Janeiro–Galeão Intl to Dulles Intl?

Yes. Cheapflights offers flight deals from Rio de Janeiro–Galeão Intl to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$252+ Flights from Rio de Janeiro–Galeão Intl Airport, Brazil to Washington, D.C. Dulles Intl Airport

Q: How much does it cost to fly round-trip from Rio de Janeiro–Galeão Intl Airport to Washington, D.C. Dulles Intl Airport?

Airfare is below average for this route at the moment. Rio de Janeiro–Galeão Intl Airport to Washington, D.C. Dulles Intl Airport flights typically cost between $540 and $771 in November. The cheapest round-trip price found within the last 3 days was $486 on Copa Airlines (Nov 18-Nov 29).

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Find flight deals from Rio de Janeiro–Galeão Intl to Dulles Intl

Cheapest flights from Rio de Janeiro–Galeão Intl to Dulles Intl
Explore the most affordable flight options available from Rio de Janeiro–Galeão Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2025.

Sat 10/2510:05 amGIG - IAD

1 stop15h 25mCopa Airlines

Thu 11/133:24 pmIAD - GIG

1 stop14h 36mCopa Airlines

Deal found 10/23

$486

Fri 10/319:30 pmGIG - IAD

1 stop18h 08mDelta

Mon 11/107:49 pmIAD - GIG

2 stops15h 26mDelta

Deal found 10/21

$494

Wed 10/291:45 amGIG - IAD

1 stop13h 30mAvianca

Mon 11/105:45 amIAD - GIG

1 stop22h 40mAvianca

Deal found 10/21

$502

Fri 11/2111:55 pmGIG - IAD

2 stops25h 46mAmerican Airlines

Fri 11/286:44 amIAD - GIG

2 stops24h 41mAmerican Airlines

Deal found 10/22

$505

Thu 10/301:30 amGIG - IAD

1 stop14h 35mCopa Airlines

Thu 11/133:24 pmIAD - GIG

1 stop14h 36mCopa Airlines

Deal found 10/22

$506

Thu 10/301:45 amGIG - IAD

2 stops25h 55mAvianca

Mon 11/105:45 amIAD - GIG

1 stop22h 40mAvianca

Deal found 10/21

$507

Fri 10/311:30 amGIG - IAD

1 stop24h 03mCopa Airlines

Tue 11/188:22 amIAD - GIG

1 stop14h 08mCopa Airlines

Deal found 10/22

$526

Best flights from Rio de Janeiro–Galeão Intl to Dulles Intl
Discover carefully curated flight deals from Rio de Janeiro–Galeão Intl to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 23, 2025.

Tue 11/181:30 amGIG - IAD

1 stop24h 03mCopa Airlines

Sat 11/291:13 amIAD - GIG

1 stop21h 17mCopa Airlines

Deal found 10/22

$486

Thu 2/129:55 pmGIG - IAD

1 stop15h 31mUnited Airlines

Sun 2/228:15 amIAD - GIG

1 stop23h 20mUnited Airlines

Deal found 10/21

$684

Wed 3/189:30 pmGIG - IAD

1 stop15h 30mDelta

Wed 4/17:50 pmIAD - GIG

1 stop13h 25mDelta

Deal found 10/22

$686

Sat 12/69:55 amGIG - IAD

1 stop19h 27mCopa Airlines

Tue 1/208:25 amIAD - GIG

1 stop14h 05mCopa Airlines

Deal found 10/23

$506

Sat 4/1110:10 amGIG - IAD

1 stop19h 03mCopa Airlines

Tue 4/214:25 pmIAD - GIG

1 stop14h 35mCopa Airlines

Deal found 10/21

$607

Fri 3/1310:10 amGIG - IAD

1 stop19h 05mCopa Airlines

Thu 3/192:18 amIAD - GIG

1 stop21h 12mCopa Airlines

Deal found 10/22

$607

Last-minute flights from Rio de Janeiro–Galeão Intl to Dulles Intl
Discover last-minute flight deals from Rio de Janeiro–Galeão Intl to Dulles Intl. Data last updated October 23, 2025 and is based on user searches.

Sat 10/2510:05 amGIG - IAD

1 stop15h 25mCopa Airlines

Thu 11/133:24 pmIAD - GIG

1 stop14h 36mCopa Airlines

Deal found 10/23

$486

Wed 10/291:45 amGIG - IAD

1 stop13h 30mAvianca

Mon 11/105:45 amIAD - GIG

1 stop22h 40mAvianca

Deal found 10/21

$502

Thu 10/305:10 amGIG - IAD

1 stop20h 23mCopa Airlines

Mon 11/108:22 amIAD - GIG

1 stop21h 38mCopa Airlines

Deal found 10/22

$506

Thu 10/301:45 amGIG - IAD

2 stops25h 55mAvianca

Mon 11/105:45 amIAD - GIG

1 stop22h 40mAvianca

Deal found 10/21

$507

Fri 10/319:30 pmGIG - IAD

1 stop18h 08mDelta

Mon 11/107:49 pmIAD - GIG

2 stops15h 26mDelta

Deal found 10/21

$494

Fri 10/311:30 amGIG - IAD

1 stop24h 03mCopa Airlines

Tue 11/188:22 amIAD - GIG

1 stop14h 08mCopa Airlines

Deal found 10/22

$526

Fri 11/2111:55 pmGIG - IAD

2 stops25h 46mAmerican Airlines

Fri 11/286:44 amIAD - GIG

2 stops24h 41mAmerican Airlines

Deal found 10/22

$505

One-way flights from Rio de Janeiro–Galeão Intl to Dulles Intl
Search for one-way flight options from Rio de Janeiro–Galeão Intl to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated October 23, 2025.

Tue 3/241:45 amGIG - IAD

1 stop13h 30mAvianca

Deal found 10/22

$252

Tue 11/119:55 amGIG - IAD

1 stop19h 27mCopa Airlines

Deal found 10/21

$253

Wed 11/129:30 pmGIG - IAD

1 stop21h 34mDelta

Deal found 10/23

$257

Fri 12/57:15 amGIG - IAD

2 stops28h 58mDelta

Deal found 10/22

$258

Wed 3/257:15 amGIG - IAD

2 stops17h 52mLATAM Airlines

Deal found 10/22

$261

Sat 12/67:15 amGIG - IAD

2 stops27h 56mLATAM Airlines

Deal found 10/22

$262

Tue 11/116:05 amGIG - IAD

2 stops29h 05mDelta

Deal found 10/21

$263

Tue 12/26:00 amGIG - IAD

2 stops34h 40mDelta

Deal found 10/22

$264

Wed 11/1211:55 pmGIG - IAD

2 stops15h 17mAmerican Airlines

Deal found 10/21

$267

Tue 11/111:45 amGIG - IAD

1 stop13h 30mAvianca

Deal found 10/21

$269

Cheap flight deals from Rio de Janeiro–Galeão Intl to Dulles Intl

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$486 (Copa Airlines)
One-way from	$252 (Avianca)
Popular in	January
Cheapest in	October
Average price	$504

Provider with most accurate pricing for Rio de Janeiro–Galeão Intl-Washington, D.C. Dulles Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Rio de Janeiro–Galeão Intl-Washington, D.C. Dulles Intl flights.

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From Rio de Janeiro–Galeão Intl to Washington, D.C. Dulles Intl

Search Deals

One-way flight from Rio de Janeiro–Galeão Intl to Washington, D.C. Dulles Intl

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($62 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($34 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Rio de Janeiro–Galeão Intl Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Rio de JaneiroWashington, D.C.

GIG - IAD

GIGIAD

Rio de Janeiro–Galeão Intl

Tue 11/18

1:30 am-11:33 pm

1 stop24h 03m

Washington, D.C. Dulles Intl

Sat 11/29

1:13 am-12:30 am

1 stop21h 17m

$486

Rio de JaneiroWashington, D.C.

GIG - IAD

GIGIAD

Rio de Janeiro–Galeão Intl

Sat 12/6

9:55 am-3:22 am

1 stop19h 27m

Washington, D.C. Dulles Intl

Tue 1/20

8:25 am-12:30 am

1 stop14h 05m

$506

Rio de JaneiroWashington, D.C.

GIG - IAD

GIGIAD

Rio de Janeiro–Galeão Intl

Sat 4/11

10:10 am-4:13 am

1 stop19h 03m

Washington, D.C. Dulles Intl

Tue 4/21

4:25 pm-8:00 am

1 stop14h 35m

$607

Rio de JaneiroWashington, D.C.

GIG - IAD

GIGIAD

Rio de Janeiro–Galeão Intl

Fri 3/13

10:10 am-4:15 am

1 stop19h 05m

Washington, D.C. Dulles Intl

Thu 3/19

2:18 am-12:30 am

1 stop21h 12m

$607

Rio de JaneiroWashington, D.C.

GIG - IAD

GIGIAD

Rio de Janeiro–Galeão Intl

Thu 2/12

9:55 pm-11:26 am

1 stop15h 31m

Washington, D.C. Dulles Intl

Sun 2/22

8:15 am-9:35 am

1 stop23h 20m

$684

Rio de JaneiroWashington, D.C.

GIG - IAD

GIGIAD

Rio de Janeiro–Galeão Intl

Wed 3/18

9:30 pm-12:00 pm

1 stop15h 30m

Washington, D.C. Dulles Intl

Wed 4/1

7:50 pm-10:15 am

1 stop13h 25m

$686

Rio de JaneiroWashington, D.C.

GIG - IAD

GIGIAD

Rio de Janeiro–Galeão Intl

Wed 11/12

9:55 am-3:22 am

1 stop19h 27m

$253

Rio de JaneiroWashington, D.C.

GIG - IAD

GIGIAD

Rio de Janeiro–Galeão Intl

Wed 11/12

9:30 pm-9:10 am

1 stop13h 40m

$257

Rio de JaneiroWashington, D.C.

GIG - IAD

GIGIAD

Rio de Janeiro–Galeão Intl

Wed 12/3

9:30 pm-11:35 am

1 stop16h 05m

$258

Rio de JaneiroWashington, D.C.

GIG - IAD

GIGIAD

Rio de Janeiro–Galeão Intl

Wed 3/25

9:30 pm-2:51 pm

1 stop18h 21m

$258

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/22

Showing 1-10 of 14 results

Most accurate provider: When it comes to deals on Rio de Janeiro–Galeão Intl Airport-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Rio de Janeiro–Galeão Intl Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Rio de Janeiro–Galeão Intl Airport-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Rio de Janeiro–Galeão Intl Airport-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Rio de Janeiro–Galeão Intl Airport-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Rio de Janeiro–Galeão Intl to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Rio de Janeiro–Galeão Intl with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Rio de Janeiro–Galeão Intl Airport to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from Rio de Janeiro–Galeão Intl Airport to Washington, D.C. Dulles Intl Airport?

Currently, July is the cheapest month in which you can book a flight from Rio de Janeiro–Galeão Intl Airport to Washington, D.C. Dulles Intl Airport (average of $335). Flying from Rio de Janeiro–Galeão Intl Airport to Washington, D.C. Dulles Intl Airport in January is currently the most expensive (average of $721). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Rio de Janeiro–Galeão Intl Airport to Washington, D.C. Dulles Intl Airport?

Related info for your journey

How long is the flight from Rio de Janeiro–Galeão Intl Airport to Washington, D.C. Dulles Intl Airport?
There are many flights that can get you from Rio de Janeiro–Galeão Intl Airport to Washington, D.C. Dulles Intl Airport in 24h 03m. Fly via Copa Airlines to get the fastest option. The distance between Rio de Janeiro–Galeão Intl Airport and Washington, D.C. Dulles Intl Airport is about 4803 mi.
Can I find deals for flights from Rio de Janeiro–Galeão Intl to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Rio de Janeiro–Galeão Intl to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Rio de Janeiro–Galeão Intl to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rio de Janeiro–Galeão Intl to Dulles Intl.
Can I find deals for business class flights from Rio de Janeiro–Galeão Intl to Dulles Intl?
Yes. Cheapflights offers flight deals from Rio de Janeiro–Galeão Intl to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Rio de Janeiro–Galeão Intl Airport to Washington, D.C. Dulles Intl Airport?
Currently, July is the cheapest month in which you can book a flight from Rio de Janeiro–Galeão Intl Airport to Washington, D.C. Dulles Intl Airport (average of $335). Flying from Rio de Janeiro–Galeão Intl Airport to Washington, D.C. Dulles Intl Airport in January is currently the most expensive (average of $721). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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$252+ Cheap flights from Rio de Janeiro–Galeão Intl, Brazil (GIG) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/24. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Rio de Janeiro–Galeão Intl to Dulles Intl with Cheapflights

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Find flight deals from Rio de Janeiro–Galeão Intl to Dulles Intl

Cheapest flights from Rio de Janeiro–Galeão Intl to Dulles IntlExplore the most affordable flight options available from Rio de Janeiro–Galeão Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2025.

Explore the most affordable flight options available from Rio de Janeiro–Galeão Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2025.

Cheap flight deals from Rio de Janeiro–Galeão Intl to Dulles Intl

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Rio de Janeiro–Galeão Intl Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Best time to book a flight from Rio de Janeiro–Galeão Intl to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Rio de Janeiro–Galeão Intl with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Rio de Janeiro–Galeão Intl Airport to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from Rio de Janeiro–Galeão Intl Airport to Washington, D.C. Dulles Intl Airport?

How much does it cost to fly round-trip from Rio de Janeiro–Galeão Intl Airport to Washington, D.C. Dulles Intl Airport?

Related info for your journey

Find useful and relevant information for your journey from Rio de Janeiro–Galeão Intl to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Rio de Janeiro–Galeão Intl Airport to Washington, D.C. Dulles Intl Airport?

Can I find deals for flights from Rio de Janeiro–Galeão Intl to Dulles Intl that include hotel bookings?

How can I find direct flights from Rio de Janeiro–Galeão Intl to Dulles Intl?

Can I find deals for business class flights from Rio de Janeiro–Galeão Intl to Dulles Intl?

What is the cheapest month to book a flight from Rio de Janeiro–Galeão Intl Airport to Washington, D.C. Dulles Intl Airport?

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Cheapest flights from Rio de Janeiro–Galeão Intl to Dulles Intl
Explore the most affordable flight options available from Rio de Janeiro–Galeão Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2025.