Cheap Flights from Washington (IAD) to São Paulo (GRU)

Popular airlines from Washington Dulles Intl. Airport (IAD) to São Paulo/Guarulhos Intl. Airport

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Find the cheapest month to fly from Washington (IAD) to São Paulo (GRU)

March is typically the cheapest month to fly

From $500 - $789 per traveler.

Graph displaying average flight prices per month

Flights from Washington (IAD) to São Paulo (GRU)
Origin airport
Washington Dulles Intl.
Destination airport
Guarulhos - Governor André Franco Montoro Intl.
Airlines serving
Air Canada, American Airlines, Copa, Delta, GOL Linhas Aereas S.A., LATAM Airlines Group, United, avianca
Roundtrip price
$512
Distance
4752 mi
Average flight time
8 hours 55 mins

Washington to São Paulo Flights

The cheapest times to fly from Washington to São Paulo

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to São Paulo are during the month of . You can find some of the cheapest flights from Washington to São Paulo with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to São Paulo

Sunday is one of the best days to book for cheap flights from Washington to São Paulo: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to São Paulo

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to São Paulo in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to São Paulo flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to São Paulo airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Guarulhos - Governor Andre Franco Montoro Intl. Airport (GRU) cost?
You'll find affordable return tickets from Washington Dulles Intl. Airport (IAD) to Guarulhos - Governor Andre Franco Montoro Intl. Airport (GRU) starting at $610. Book a seat and be on your way. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a United flight leaving IAD on July 27 2025 and touching down at GRU. The price was last updated on July 4 2025 and has not changed since.
What is the cheapest month to fly from IAD to GRU?
The cheapest flights from IAD to GRU are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to Guarulhos - Governor Andre Franco Montoro Intl. Airport (GRU)?
You can fly straight from Washington Dulles Intl. Airport (IAD) to Guarulhos - Governor Andre Franco Montoro Intl. Airport (GRU) on a United Airlines flight.
What is the cheapest airline that flies from IAD to GRU?
Right now, the cheapest carrier offering one-way flights from IAD to GRU is United. You can jet off on this route from $748. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from IAD on August 2 2025. Prices were last updated on July 4 2025 and have not changed since.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Guarulhos - Governor Andre Franco Montoro Intl. Airport (GRU)?
On average, only 1 direct flight departs daily from Washington Dulles Intl. Airport (IAD) to Guarulhos - Governor Andre Franco Montoro Intl. Airport (GRU). Need more options? Use our filters to discover flights with layovers and add a new stop to your trip.
What are the most popular departure times for flights from Washington Dulles Intl. Airport (IAD) to Guarulhos - Governor Andre Franco Montoro Intl. Airport (GRU)?
Flights between IAD and GRU are their busiest at 10 PM. If you want a quieter trip and possibly cheaper prices, choose a departure outside the usual busy windows.
What day of the week has the most flights from IAD to GRU?
Friday has the most flights from Washington Dulles Intl. Airport (IAD) to Guarulhos - Governor Andre Franco Montoro Intl. Airport (GRU). Consider taking off on this day and you'll have the best chance of finding a departure that fits your plans.
What is the earliest flight from Washington Dulles Intl. Airport (IAD) to Guarulhos - Governor Andre Franco Montoro Intl. Airport (GRU)?
Washington Dulles Intl. Airport (IAD)'s earliest flight to Guarulhos - Governor Andre Franco Montoro Intl. Airport (GRU) is at approximately 10:30PM UTC-5. With a total journey time of 9h 50m, you'll land at around 10:20AM UTC-3.
How long does it take to fly from Washington Dulles Intl. Airport (IAD) to Guarulhos - Governor Andre Franco Montoro Intl. Airport (GRU)?
The average flight time from IAD to GRU is 9 hours and 50 minutes, covering a total distance of 4,800 mi.
What airline has the least delays from IAD to GRU?
Consider traveling with United Airlines if you'd like to fly straight from Washington Dulles Intl. Airport (IAD) to Guarulhos - Governor Andre Franco Montoro Intl. Airport (GRU) without any interruptions. This airline has the best track record for punctuality, with an on-time performance of 80%. Want to get notified of any changes? You can check your flight status using the Expedia App.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Guarulhos - Governor Andre Franco Montoro Intl. Airport (GRU)?
To avoid possible delays on the Washington Dulles Intl. Airport (IAD) to Guarulhos - Governor Andre Franco Montoro Intl. Airport (GRU) route, aim to fly before 3 PM. Departures after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Sao Paulo from Washington Dulles Intl. Airport (IAD)?
Compare your flight options from Washington Dulles Intl. Airport (IAD) to Guarulhos - Governor Andre Franco Montoro Intl. Airport (GRU). This is the only airport in Sao Paulo you can touch down at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Guarulhos - Governor Andre Franco Montoro Intl. Airport (GRU) last-minute?
Booking your flight from IAD to GRU just before your trip is typically more expensive. But if there's some wiggle room with your departure times and dates, you could score a cheap last-minute fare.
Is it cheaper to book an IAD to GRU flight and hotel package?
Booking an IAD to GRU flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Choose from our extensive range of stays and then add flights, car rentals and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Guarulhos - Governor Andre Franco Montoro Intl. Airport (GRU)?
Typically, you can modify or cancel your IAD to GRU flight. However, there may be additional fees, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline's rules and fees on flight changes, or if you want more details, go to our Customer Service portal.

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