Find flights
When to book
FAQs

Cheap flights from Seattle to Sao Paulo, Brazil

SEA — SAO
11 Oct — 18 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Seattle to Sao Paulo

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) 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 11 September 2025.

Popular in

December

Cheapest in

May

Average price

C$ 955
Highest demand for flights based on searches. 19% potential increase in price (C$ 350 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (C$ 97 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Best time to book a flight from Seattle to Sao Paulo

Have a flexible travel schedule? Discover the best time to fly to Sao Paulo from Seattle 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 Seattle to Sao Paulo

How far ahead should I book a flight from Seattle to Sao Paulo?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Sao Paulo. Price data was last updated on 29 August 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Sao Paulo, you should look to book at least 2 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Seattle to Sao Paulo?

Currently, September is the cheapest month in which you can book a flight from Seattle to Sao Paulo (average of C$ 663). Flying from Seattle to Sao Paulo in December is currently the most expensive (average of C$ 1,113). 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.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Sao Paulo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Sao Paulo?

    Located just 18.4 km from the city centre, Seattle/Tacoma Intl is the airport most travellers will use when flying to Sao Paulo from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to Sao Paulo should be relatively easy as there are 0 daily outbound flights to Sao Paulo from 0 different airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle 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 Seattle to Sao Paulo?

    Currently, September is the cheapest month in which you can book a flight from Seattle to Sao Paulo (average of C$ 663). Flying from Seattle to Sao Paulo in December is currently the most expensive (average of C$ 1,113). 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.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to Sao Paulo?

Deals for Seattle to Sao Paulo flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Sao Paulo?

Millions of users choose and trust Cheapflights to book the best flight deals from Seattle to Sao Paulo for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Seattle to Sao Paulo with no change fees?

Yes, we can. To see specific flights from Seattle to Sao Paulo with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Seattle to Sao Paulo become cheaper?

Not ready to book yet? You can track prices for flights from Seattle to Sao Paulo on Cheapflights with our Price Alert feature and get notified when better prices are available.

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.