IAD - SAO

$278 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 11/25. 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

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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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

Wed, Nov 5 - Sat, Nov 15
Avianca Logo
4:30 am - 1:35 amIAD-GRU
19h 05m2 stops
Avianca Logo
2:40 am - 1:40 amGRU-IAD
25h 00m2 stops
$657Avianca
Find Deal
Sat, Nov 1 - Tue, Dec 9
Avianca Logo
3:00 am - 1:35 amIAD-GRU
20h 35m2 stops
Avianca Logo
7:35 am - 1:40 amGRU-IAD
20h 05m2 stops
$658Avianca
Find Deal
Sun, Mar 8 - Thu, Mar 12
GOL Logo
3:35 pm - 1:35 amIAD-GRU
33h 00m1 stop
GOL Logo
1:20 am - 2:15 pmGRU-IAD
13h 55m1 stop
$659GOL
Find Deal
Sat, Nov 8 - Tue, Nov 18
Avianca Logo
3:00 am - 1:35 amIAD-GRU
20h 35m2 stops
Avianca Logo
2:40 am - 1:40 amGRU-IAD
25h 00m2 stops
$660Avianca
Find Deal
Mon, Nov 17 - Sat, Nov 22
Copa Airlines Logo
3:24 pm - 6:30 amIAD-GRU
13h 06m1 stop
Copa Airlines Logo
11:10 am - 12:07 amGRU-IAD
14h 57m1 stop
$663Copa Airlines
Find Deal
Wed, Feb 25 - Tue, Mar 10
Copa Airlines Logo
8:29 am - 12:15 amIAD-GRU
13h 46m1 stop
Copa Airlines Logo
3:10 am - 12:32 amGRU-IAD
22h 22m1 stop
$664Copa Airlines
Find Deal
Sun, Mar 8 - Fri, Mar 13
LATAM Airlines Logo
1:00 pm - 5:45 amIAD-GRU
15h 45m2 stops
LATAM Airlines Logo
8:45 pm - 11:53 amGRU-IAD
16h 08m2 stops
$668LATAM Airlines
Find Deal
Wed, Dec 3 - Wed, Dec 10
Multiple Airlines Logo
5:45 am - 9:10 amIAD-VCP
25h 25m2 stops
Multiple Airlines Logo
7:40 pm - 3:10 amVCP-IAD
33h 30m3 stops
$673Multiple Airlines
Find Deal
Mon, Mar 16 - Wed, Mar 18
GOL Logo
3:35 pm - 5:40 amIAD-GRU
13h 05m1 stop
GOL Logo
5:25 pm - 2:15 pmGRU-IAD
21h 50m1 stop
$682GOL
Find Deal
Wed, Dec 3 - Wed, Dec 10
Multiple Airlines Logo
5:45 am - 9:10 amIAD-VCP
25h 25m2 stops
Multiple Airlines Logo
7:40 pm - 1:15 pmVCP-IAD
19h 35m2 stops
$698Multiple Airlines
Find Deal

Everything you should know

Top airlines
Avianca
Cheapest • from $657 (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 18% 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
Cheapest round-trip
$657
Typical prices: $662-$805
Avianca
Wed 11/5Sat 11/15
IAD - GRU • 2 stops
Cheapest non-stop
$740
Typical prices: $724-$1,027
United Airlines
Thu 3/12Wed 3/25
IAD - GRU • Non-stop
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!
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.

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 $563 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 Mondays 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 $1,478 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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $786 on average.

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 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$278
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly with an average 71% increase in price.
Flight from Washington Dulles Airport to Sao Paulo Guarulhos Airport

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 $278 for a one-way ticket and $657 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 $760 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 $919 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 $299 or less one-way and $739 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 1557 reviews
8.1Crew
7.8Boarding
6.8Entertainment
6.8Food
7.4Comfort
Airline reviews

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

4.0 OkayKaushik, Oct 2025YYZ - PTY
Read more Copa Airlines reviews

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

the food served was an embarrassment. No connection for charging the cellphone... What a crappy airline.

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

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

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.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

We were given vouchers we couldn’t use with a 5.5 hour delay

Terrible. Out flight was delayed for 21 (twenty one) hours. United is a joke.

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 .

Not what it used to be. The sale of food makes them look greedy!

The incoming plane was late and no information was shared. They even announced we would board in 10 muntes 40 minutes prior to the plane arriving, and the website said until takeoff that we had taken off an hour earlier

Boarding was excessively slow. They do it by groups in a way that it doesn’t make sense. After business class , ppl that need assistance and any other priority group they should have ppl board from the back to the front. First rows 20+. Then 15+. Then 10, etc. having ppl sitting in the back board last makes no sense. The libe backame long as soon as ppl on rows 10 or so where told to board. The line went all the way up the ramp and tunnel for 25 mins.

Seats are very tight even in Plus, no complimentary snacks or beverage

I receive a service for what I pay, so it is fair.

There isn't much space in-between seats and even water needs to be paid for during the flight.

We did not know about the bag fees until check in. They are way too high. It’s insane. We also had a huge delay and everything costed extra which was very annoying.

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

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