IAD - SAO

$261 Find Cheap Flights from Washington Dulles Airport to Sao Paulo

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Sao Paulo departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Sao Paulo

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Sao Paulo, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Sao Paulo, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$718
Overall average: $1,264
Avianca
Mon 12/29Wed 2/4
IAD - GRU • 1 stop
Cheapest non-stop
$729
Typical prices: $726-$845
United Airlines
Wed 1/28Wed 2/4
IAD - GRU • Non-stop
Top airlines
GOL
Cheapest • from $719 (round-trip)
Copa Airlines
Best reviews • 7.6 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
IAD-GRU
Cheapest
IAD-GRU
Most popular
Insights
Insights
Insights
Insights
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 29% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 27% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Sao Paulo!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Dulles Intl to Sao Paulo (IAD-SAO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Sao Paulo that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Sao Paulo

Mon, Dec 29 - Wed, Feb 4
Avianca Logo
5:45 am - 1:35 amIAD-GRU
17h 50m1 stop
Avianca Logo
1:20 am - 1:15 pmGRU-IAD
13h 55m1 stop
$718Avianca
Find Deal
Mon, Jan 19 - Fri, Mar 27
Multiple Airlines Logo
2:35 pm - 10:55 amIAD-VCP
18h 20m2 stops
Multiple Airlines Logo
10:10 am - 9:13 pmVCP-IAD
36h 03m1 stop
$719Multiple Airlines
Find Deal
Wed, Jan 28 - Tue, Feb 3
Avianca Logo
4:15 pm - 10:40 pmIAD-GRU
28h 25m2 stops
Avianca Logo
1:20 am - 1:40 amGRU-IAD
26h 20m2 stops
$719Avianca
Find Deal
Fri, Jan 16 - Sun, Feb 1
Copa Airlines Logo
1:12 am - 8:50 pmIAD-GRU
17h 38m1 stop
Copa Airlines Logo
3:10 am - 11:32 pmGRU-IAD
22h 22m1 stop
$720Copa Airlines
Find Deal
Sun, Feb 1 - Wed, Feb 4
Avianca Logo
4:15 pm - 10:40 pmIAD-GRU
28h 25m2 stops
Avianca Logo
5:25 pm - 2:55 pmGRU-IAD
23h 30m2 stops
$722Avianca
Find Deal
Tue, Dec 9 - Tue, Jan 20
Avianca Logo
4:30 am - 1:35 amIAD-GRU
19h 05m2 stops
Avianca Logo
5:25 pm - 4:25 amGRU-IAD
13h 00m1 stop
$723Avianca
Find Deal
Fri, Feb 13 - Fri, Feb 20
Avianca Logo
4:15 pm - 10:40 pmIAD-GRU
28h 25m2 stops
Avianca Logo
1:20 am - 4:25 amGRU-IAD
29h 05m1 stop
$724Avianca
Find Deal
Wed, Jan 28 - Wed, Feb 4
United Airlines Logo
10:30 pm - 10:20 amIAD-GRU
9h 50mnonstop
United Airlines Logo
10:25 pm - 6:35 amGRU-IAD
10h 10mnonstop
$729United Airlines
Find Deal
Sun, Mar 15 - Tue, Mar 24
GOL Logo
3:35 pm - 9:10 amIAD-VCP
16h 35m2 stops
GOL Logo
7:40 pm - 2:15 pmVCP-IAD
19h 35m2 stops
$736GOL
Find Deal
Sun, Mar 8 - Sun, Mar 22
GOL Logo
3:35 pm - 9:10 amIAD-VCP
16h 35m2 stops
GOL Logo
5:55 pm - 2:15 pmVCP-IAD
45h 20m2 stops
$741GOL
Find Deal
Booking Insights

KAYAK's insights & trends for Dulles Intl to Sao Paulo flights

Get data-powered insights and trends into flights from Dulles Intl to Sao Paulo to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Washington, D.C. Dulles Intl Airport to Sao Paulo?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. Dulles Intl Airport to Sao Paulo departing in December.

What is the cheapest Washington, D.C. Dulles Intl Airport to Sao Paulo flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Washington, D.C. Dulles Intl Airport to Sao Paulo costs $739 on the route between Washington, D.C. Dulles Intl Airport (IAD) and Sao Paulo Guarulhos Intl Airport (GRU). It is also the most popular route.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Sao Paulo?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Sao Paulo clicked on KAYAK for each day over the last 12 months.

When flying from Washington Dulles Airport to Sao Paulo, you should consider leaving on a Monday and avoid Sundays if you are looking for the best rates. For your return to Washington Dulles Airport, you’ll find the best rates on Thursdays and the most expensive ones on Sundays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Sao Paulo, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Sao Paulo is September, where tickets cost $627 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is $1,410 and $966 respectively.

Can I save money by flying with a layover from Washington, D.C. Dulles Intl Airport to Sao Paulo?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $816, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Sao Paulo, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Sao Paulo, you should book around 4 weeks before departure, which saves you about 29% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$295
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly with an average 64% increase in price.
Flight from Washington Dulles Airport to Sao Paulo

When to book flights from Dulles Intl to Sao Paulo

Are your dates flexible? Find out the best times to travel from Dulles Intl to Sao Paulo based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Sao Paulo flights

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Sao Paulo was $261 for a one-way ticket and $718 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Sao Paulo?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Washington Dulles Airport and on arrival in Sao Paulo.

  • Which airlines offer Wi-Fi service onboard planes from Washington Dulles Airport to Sao Paulo?

    American Airlines, and Delta offer inflight Wi-Fi service on the Washington Dulles Airport to Sao Paulo flight route.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Sao Paulo?

    The Boeing 767-400 is the aircraft model that flies most regularly on the Washington Dulles Airport to Sao Paulo flight route.

  • Which airline alliances offer flights from Washington Dulles Airport to Sao Paulo?

    Star Alliance is the only airline alliance operating flights between Washington Dulles Airport and Sao Paulo.

  • On which days can I fly direct from Washington Dulles Airport to Sao Paulo?

    There are nonstop flights from Washington Dulles Airport to Sao Paulo on a daily basis.

  • Which is the best airline for flights from Washington, D.C. to Sao Paulo, Copa Airlines or United Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Sao Paulo are Copa Airlines and United Airlines. With an average price for the route of $740 and an overall rating of 7.6, Copa Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $914 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Sao Paulo?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Sao Paulo.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Sao Paulo?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sao Paulo from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Sao Paulo?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sao Paulo with an airline and back to Washington Dulles Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Sao Paulo?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sao Paulo from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Washington, D.C. Dulles Intl Airport to Sao Paulo

  • Looking for a cheap flight? 25% of our users found flights on this route for $777 or less one-way and $839 or less round-trip.

Prefer to fly direct from Washington Dulles Airport to Sao Paulo?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Washington, D.C. Dulles Intl to Sao Paulo.
Find which airlines fly direct from Washington, D.C. Dulles Intl Airport to Sao Paulo, which days they fly and book direct flights.

Direct departures

Washington, D.C. Dulles Intl to Sao Paulo

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Sao Paulo to Washington, D.C. Dulles Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Reviews of the top 3 airlines serving from Dulles Intl to Sao Paulo

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Sao Paulo. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Sao Paulo? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
Copa AirlinesOverall score based on 1568 reviews
6.8Entertainment
7.8Boarding
7.4Comfort
6.8Food
8.1Crew
Airline reviews

Very strict carry on rules meant most of the plane had to gate check their luggage. As is often the case had things that were broken because of this, but I appreciated not being charged to gate check. Otherwise good flight and great crew once on the plane

6.0 GoodZach, Oct 2025DEN - PTY
Read more Copa Airlines reviews

Very strict carry on rules meant most of the plane had to gate check their luggage. As is often the case had things that were broken because of this, but I appreciated not being charged to gate check. Otherwise good flight and great crew once on the plane

Simply as follows:- First, there was no vegetarian option for the meal Second, only 2 washrooms for the entire economy class.

I liked the meatloaf the chicken was awful but the plane was on time and got there and the staff was nice.

They were super friendly bumped me up to exit row free of charge, All flight legs were on time

Boarding was quick & efficient; they gave boarding groups due priority; staff & air crew were very cordial and helpful, pleasant flight.

Cops Airlines is fantastic! The level of care and professionalism provided by the entire crew was top rate.

We had a great flight just wished they had a tv so we can see a movie that would of made my trip excellent.

horrible service, food was an embarrassment, no charging for cellphones, stay away

Very happy with my flight. I would definitely recommend it.

Did upgrade, travel in business it was great (more room I could sleep)

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

Not even water is offered on the flight. You cannot lean back on the seats and the seats are so narrow you can’t avoid rubbing elbows with the person next to you.

I couldnt recline the seat. Other than that crew was very attentive and helpful. Thsnk you

I had to go to the boarding counter for them to enter my return flight as it’s not with Avianca. There was a long queue as there were lots of people being called to the counter.

This low cost airline looks and fells more like a local bus. In a 6 hour flight not being able to recline a seat is torture. The only thing available with no charge is a glass of water provided by, mostly, rude staff. Our luggage didn’t arrive

Horrible experience. Flight cancelled. Arrived at destination 12 hs later. No one gave us an answer or any information. Very very poor service. We won’t ever travel again with Avianca

Did not fly with Pakistan International Airlines. Have never flown with Pakistan International Airlines.

Boarding, crew were excellent, food was ok and entertainment need to improve

The seats were uncomfortable and barely reclined at all. Very little leg room despite being business class. The crew was friendly and the food was good. Had to use my own phone for in-flight entertainment.

Very uncomfortable planes , poor service on the plane , take your own water so you don’t dehydrate , in a 6 hs flight they sold one time food and beverage . 1 plane was delayed 6 hs , I lost a connecting flight . Then in the way back they announce a delay of 2 hs so I had to take a different flight to arrive on time for my connecting flight . Avoid this airline .

The check in is the only positive thing in Avianca. The seat is the most uncomfortable I have traveled, the distance is minimal.

Everything you need to know for your flight from Dulles Intl to Sao Paulo

Information on your arrival and departure airports