HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sao Paulo

$262+ Cheap flights from Dulles Intl (IAD) to Sao Paulo, Brazil (SAO)

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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SAO
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Sao Paulo with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Sao Paulo are usually found in May or September, booked 48 days in advance, depart on a Thursday or Wednesday and return on a Thursday

Cheap flight deals from Dulles Intl to Sao Paulo

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Sao Paulo (SAO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 17, 2025.

Round-trip from

$595
(Avianca)

One-way from

$262
(GOL)

Popular in

December

Cheapest in

May

Average price

$668

Good round-trip deal

$739 or less

Good one-way deal

$299 or less
From Washington, D.C. Dulles Intl to Sao Paulo (SAO)
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Sao Paulo (SAO)
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($202 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($56 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Sao Paulo (SAO).
Search Deals
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Sao Paulo (SAO).
Search Deals

Find flight deals from Dulles Intl to Sao Paulo

Cheapest flights from Dulles Intl to Sao Paulo
Explore the most affordable flight options available from Dulles Intl to Sao Paulo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Avianca deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/74:05 amIAD - GRU
2 stops24h 30mAvianca
Wed 10/157:20 amGRU - IAD
1 stop31h 40mAvianca
Deal found 9/17$595
This Priceline deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/195:45 amIAD - GRU
1 stop14h 55mAvianca
Sun 11/232:40 amGRU - IAD
2 stops38h 15mAvianca
Deal found 9/17$596
This Avianca deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/134:15 pmIAD - GRU
2 stops31h 20mAvianca
Tue 11/252:40 amGRU - IAD
1 stop12h 35mAvianca
Deal found 9/15$597
This oojo deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/53:00 amIAD - GRU
2 stops20h 35mAvianca
Sat 11/81:20 amGRU - IAD
2 stops26h 20mAvianca
Deal found 9/16$598
This Flightnetwork deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/55:45 amIAD - GRU
2 stops19h 25mAvianca
Tue 10/141:45 amGRU - IAD
2 stops26h 00mAvianca
Deal found 9/15$599
This Kiwi.com deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/217:09 pmIAD - GRU
2 stops31h 41mMultiple Airlines
Tue 9/2311:10 amGRU - IAD
1 stop14h 20mMultiple Airlines
Deal found 9/17$600
This Air Canada deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/171:00 pmIAD - GRU
1 stop19h 40mAir Canada
Wed 9/249:00 pmGRU - IAD
1 stop25h 05mAir Canada
Deal found 9/14$603
This Air Canada deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/209:45 amIAD - GRU
1 stop21h 15mAir Canada
Sun 12/79:45 pmGRU - IAD
1 stop25h 14mAir Canada
Deal found 9/15$604
This Mytrip deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/254:05 amIAD - GRU
2 stops25h 55mMultiple Airlines
Sun 10/54:10 amGRU - IAD
1 stop26h 25mMultiple Airlines
Deal found 9/15$605
This Air Canada deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/271:20 pmIAD - GRU
1 stop17h 40mAir Canada
Tue 12/29:45 pmGRU - IAD
1 stop15h 38mAir Canada
Deal found 9/16$606
This Expedia deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/195:05 pmIAD - GRU
2 stops32h 05mAvianca
Tue 10/282:40 amGRU - IAD
2 stops26h 30mAvianca
Deal found 9/17$607
This Mytrip deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/22:35 pmIAD - CGH
2 stops21h 30mMultiple Airlines
Thu 11/64:20 pmCGH - IAD
2 stops22h 55mMultiple Airlines
Deal found 9/16$645

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Sao Paulo 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, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Sao Paulo that are best for you.

Fly from

Dulles Intl

Fly to

Sao Paulo

Route

Depart

Return

Price

Washington, D.C.Sao Paulo

IAD - GRU

IADGRU

Washington, D.C. Dulles Intl

Wed 11/19

1:13 am-12:10 am

1 stop20h 57m

Sao Paulo Guarulhos Intl

Sun 12/7

5:25 am-11:33 pm

1 stop20h 08m

$703

Washington, D.C.Sao Paulo

IAD - GRU

IADGRU

Washington, D.C. Dulles Intl

Wed 2/11

10:30 pm-10:20 am

Nonstop9h 50m

Sao Paulo Guarulhos Intl

Sun 2/22

10:25 pm-6:35 am

Nonstop10h 10m

$739

Washington, D.C.Sao Paulo

IAD - GRU

IADGRU

Washington, D.C. Dulles Intl

Mon 3/16

11:30 pm-10:20 am

Nonstop9h 50m

Sao Paulo Guarulhos Intl

Tue 3/24

9:30 pm-6:40 am

Nonstop10h 10m

$740

Washington, D.C.Sao Paulo

IAD - GRU

IADGRU

Washington, D.C. Dulles Intl

Sun 3/15

11:30 pm-10:20 am

Nonstop9h 50m

Sao Paulo Guarulhos Intl

Tue 3/24

9:30 pm-6:40 am

Nonstop10h 10m

$740

Washington, D.C.Sao Paulo

IAD - GRU

IADGRU

Washington, D.C. Dulles Intl

Sun 3/15

11:30 pm-10:20 am

Nonstop9h 50m

Sao Paulo Guarulhos Intl

Wed 3/25

9:30 pm-6:40 am

Nonstop10h 10m

$740

Washington, D.C.Sao Paulo

IAD - VCP

IADVCP

Washington, D.C. Dulles Intl

Wed 10/15

7:00 am-7:00 pm

2 stops35h 00m

Sao Paulo Viracopos

Sun 10/19

9:45 am-2:00 pm

3 stops29h 15m

$741

Washington, D.C.Sao Paulo

IAD - GRU

IADGRU

Washington, D.C. Dulles Intl

Sat 3/14

2:18 am-12:10 am

1 stop20h 52m

Sao Paulo Guarulhos Intl

Fri 3/20

5:25 am-12:32 am

1 stop20h 07m

$742

Washington, D.C.Sao Paulo

IAD - GRU

IADGRU

Washington, D.C. Dulles Intl

Thu 3/12

2:18 am-12:15 am

1 stop20h 57m

Sao Paulo Guarulhos Intl

Sat 3/14

3:10 am-12:32 am

1 stop22h 22m

$742

Washington, D.C.Sao Paulo

IAD - GRU

IADGRU

Washington, D.C. Dulles Intl

Fri 10/10

2:25 am-12:30 am

1 stop21h 05m

Sao Paulo Guarulhos Intl

Sat 10/25

3:10 am-12:33 am

1 stop22h 23m

$744

Washington, D.C.Sao Paulo

IAD - GRU

IADGRU

Washington, D.C. Dulles Intl

Sun 3/15

5:20 pm-7:10 am

1 stop12h 50m

Sao Paulo Guarulhos Intl

Mon 3/23

9:30 pm-6:40 am

Nonstop10h 10m

$744

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 55 results
1
2
3
...
6

Best time to book a flight from Dulles Intl to Sao Paulo

Have a flexible travel schedule? Discover the best time to fly to Sao Paulo from Dulles 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 Washington, D.C. Dulles Intl Airport to Sao Paulo

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Sao Paulo?

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Sao Paulo. Price data was last updated on September 12, 2025.

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Sao Paulo may vary depending on when you book. For the best chance of a lower fare, look to book 48 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Sao Paulo?

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Sao Paulo (average of $680). Flying from Washington, D.C. Dulles Intl Airport to Sao Paulo in December is currently the most expensive (average of $1,209). 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.

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

Find hourly flight availability from Dulles Intl to Sao Paulo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Dulles Intl Airport to Sao Paulo in the afternoon. If you’re flexible enough to do this you can expect to save up to 27% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Sao Paulo?

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Sao Paulo. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Sao Paulo flight should consider departing on Monday mornings when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Sao Paulo

Explore weekly flight availability from Dulles Intl to Sao Paulo. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 17, 2025.

The most flights from IAD to SAO are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

What’s the top layover airport for flights from Washington, D.C. Dulles Intl Airport to Sao Paulo?

Share of 1-stop round-trip flights from Washington, D.C. Dulles Intl Airport to Sao Paulo chosen by Cheapflights users in the past 12 months, using the same layover each way.

Bogotá (BOG) – chosen by Cheapflights users on 93% of 1-stop itineraries from Washington, D.C. Dulles Intl Airport to Sao Paulo on Cheapflights.

What’s the cheapest layover airport for flights from Washington, D.C. Dulles Intl Airport to Sao Paulo?

Average round-trip fare for 1-stop flights from Washington, D.C. Dulles Intl Airport to Sao Paulo, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Bogotá (BOG) is the most affordable 1-stop option, with an average round-trip price of $1,333.

What’s the fastest layover option from Washington, D.C. Dulles Intl Airport to Sao Paulo?

Shortest average travel time for 1-stop one-way flights from Washington, D.C. Dulles Intl Airport to Sao Paulo, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Atlanta (ATL) have the shortest average one-way travel time for 1-stop routes: 12h 38m.

Which airport typically offers the quickest layover for flights from Washington, D.C. Dulles Intl Airport to Sao Paulo?

Average layover duration for 1-stop one-way flights from Washington, D.C. Dulles Intl Airport to Sao Paulo, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Atlanta (ATL) offer the fastest connection on this route, with an average layover time of 2h 11m.

Reviews of airlines servicing Sao Paulo

Get insights into the airlines that provide service to Sao Paulo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sao Paulo. Reviews last updated September 17, 2025.
See what other customers who have flown with Copa Airlines, United Airlines, and Avianca from Washington, D.C. Dulles Intl Airport to Sao Paulo have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Copa Airlines
7.6
Good
1,533 reviews

Entertainment

6.8

Food

6.8

Comfort

7.4

Overall

7.6

Boarding

7.8

Crew

8.1

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip
Copa Airlines
7.6
Good
1,533 reviews
Copa Airlines
7.6
Good
1,533 reviews

Entertainment

6.8

Food

6.8

Comfort

7.4

Overall

7.6

Boarding

7.8

Crew

8.1

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip
United Airlines
7.4
Good
8,926 reviews
Copa Airlines
7.6
Good
1,533 reviews

Entertainment

6.8

Food

6.8

Comfort

7.4

Overall

7.6

Boarding

7.8

Crew

8.1

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip
Avianca
6.7
Okay
2,436 reviews
Copa Airlines
7.6
Good
1,533 reviews

Entertainment

6.8

Food

6.8

Comfort

7.4

Overall

7.6

Boarding

7.8

Crew

8.1

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Sao Paulo. 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 Washington, D.C. Dulles Intl Airport to Sao Paulo?

    Copa Airlines, United Airlines, and GOL can get you from Washington, D.C. Dulles Intl Airport to Sao Paulo in just under 9h 50m. Your travel time can differ by up to 16h 35m. There are 4749 mi between Washington, D.C. Dulles Intl Airport and Sao Paulo. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Sao Paulo round-trip?

    Flying on Avianca is currently your cheapest option to Sao Paulo, with prices starting at $509. Additional round-trip tickets that might be worth considering are offered by Copa Airlines and LATAM Airlines, with the lowest prices starting at $530 and $567, respectively. Avianca is priced at 41% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Sao Paulo one-way?

    $262 is the cheapest one-way deal found within the past few days, from Avianca. You may also be able to find cheap deals on GOL and Copa Airlines, with prices starting from $262 and $264, respectively.

  • What are the most popular routes from Washington, D.C. Dulles Intl Airport to Sao Paulo?

    While some choose either Washington, D.C. Dulles Intl - Sao Paulo Viracopos or Washington, D.C. Dulles Intl - Sao Paulo Congonhas, Washington, D.C. Dulles Intl - Sao Paulo Guarulhos Intl is the most popular route from Washington, D.C. Dulles Intl Airport to Sao Paulo.

  • What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Sao Paulo?

    While on average a flight from Washington, D.C. Dulles Intl Airport to Sao Paulo is generally $1,172, our data shows the cheapest flight currently is $299. When looking at the most popular route, (Washington, D.C. Dulles Intl - Sao Paulo Guarulhos Intl), you can expect to pay $510 for that flight.

  • Can I find deals for flights from Dulles Intl to Sao Paulo that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Sao Paulo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Sao Paulo?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Sao Paulo.

  • Can I find deals for business class flights from Dulles Intl to Sao Paulo?

    Yes. Cheapflights offers flight deals from Dulles Intl to Sao Paulo 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 Washington, D.C. Dulles Intl Airport to Sao Paulo?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Sao Paulo (average of $680). Flying from Washington, D.C. Dulles Intl Airport to Sao Paulo in December is currently the most expensive (average of $1,209). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 5 airlines flying from Dulles Intl to Sao Paulo

Discover the top 5 airlines that operate flights from Dulles Intl to Sao Paulo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$509Average$717FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$530Average$767FlexibilityNo cancel feeOn-time70%
LATAM AirlinesCheapest$567Average$605FlexibilityNo cancel feeOn-time81%
GOLCheapest$584Average$776FlexibilityNo cancel feeOn-time74%
United AirlinesCheapest$609Average$912FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.