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$303+ Cheap flights from Seattle (SEA) 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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SAO
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Sao Paulo are usually found in May or October, booked 27 days in advance, depart on a Thursday or Tuesday and return on a Tuesday

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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$600
(Delta)

One-way from

$303
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$599
Provider with most accurate pricing for Seattle/Tacoma Intl-Sao Paulo (SAO) flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Sao Paulo (SAO) flights.
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From Seattle/Tacoma Intl to Sao Paulo (SAO)
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One-way flight from Seattle/Tacoma Intl to Sao Paulo (SAO)
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Highest demand for flights based on searches. 15% potential increase in price ($139 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($49 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Seattle to Sao Paulo

Cheapest flights from Seattle to Sao Paulo
Explore the most affordable flight options available from Seattle to Sao Paulo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Delta deal was found by Cheapflights users on 10/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:10 amSEA - GRU
2 stops24h 35mDelta
Thu 1/811:05 pmGRU - SEA
1 stop25h 30mDelta
Deal found 10/30$600
This United Airlines deal was found by Cheapflights users on 10/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/139:04 amSEA - GRU
2 stops20h 16mUnited Airlines
Sat 1/310:15 pmGRU - SEA
2 stops29h 53mUnited Airlines
Deal found 10/30$605
This Delta deal was found by Cheapflights users on 10/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/147:10 amSEA - GRU
1 stop17h 25mDelta
Sun 1/1812:55 pmGRU - SEA
1 stop28h 23mDelta
Deal found 10/30$606
This American Airlines deal was found by Cheapflights users on 10/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2612:59 amSEA - GRU
1 stop26h 11mAmerican Airlines
Wed 12/311:00 pmGRU - SEA
1 stop25h 12mAmerican Airlines
Deal found 10/29$610
This United Airlines deal was found by Cheapflights users on 10/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2611:59 pmSEA - GRU
1 stop28h 31mUnited Airlines
Wed 12/310:25 pmGRU - SEA
1 stop27h 29mUnited Airlines
Deal found 10/30$611
This American Airlines deal was found by Cheapflights users on 10/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3011:44 amSEA - GRU
1 stop16h 26mAmerican Airlines
Wed 11/512:15 amGRU - SEA
1 stop28h 11mAmerican Airlines
Deal found 10/29$613
This United Airlines deal was found by Cheapflights users on 10/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/21:40 pmSEA - GRU
2 stops39h 40mUnited Airlines
Mon 2/910:25 pmGRU - SEA
3 stops27h 47mUnited Airlines
Deal found 10/30$621
This Expedia deal was found by Cheapflights users on 10/29. 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.
Fri 11/289:15 pmSEA - GRU
2 stops27h 25mMultiple Airlines
Fri 12/55:45 pmGRU - SEA
2 stops25h 59mMultiple Airlines
Deal found 10/29$625
This Travelocity deal was found by Cheapflights users on 10/29. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/248:00 amSEA - GRU
1 stop16h 35mLATAM Airlines
Thu 11/278:35 amGRU - SEA
2 stops43h 24mLATAM Airlines
Deal found 10/29$633
This United Airlines deal was found by Cheapflights users on 10/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/129:04 amSEA - GRU
2 stops19h 26mUnited Airlines
Wed 11/1910:25 pmGRU - SEA
1 stop27h 29mUnited Airlines
Deal found 10/30$634
This Cheapflightsfares deal was found by Cheapflights users on 10/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1711:40 amSEA - GRU
1 stop16h 55mLATAM Airlines
Thu 11/278:35 amGRU - SEA
2 stops33h 04mLATAM Airlines
Deal found 10/29$637
This Kiwi.com deal was found by Cheapflights users on 10/30. 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.
Wed 11/128:35 amSEA - VCP
1 stop29h 45mMultiple Airlines
Wed 11/195:55 pmVCP - SEA
2 stops32h 00mMultiple Airlines
Deal found 10/30$1,145

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle 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 October 30, 2025.
Use the filters below to find and compare flights from Seattle to Sao Paulo that are best for you.

Fly from

Seattle

Fly to

Sao Paulo

Route

Depart

Return

Price

SeattleSao Paulo

SEA - GRU

SEAGRU

Seattle/Tacoma Intl

Sat 11/15

10:19 am-4:30 pm

2 stops25h 11m

Sao Paulo Guarulhos Intl

Thu 1/8

11:05 pm-7:35 pm

1 stop25h 30m

$600

SeattleSao Paulo

SEA - GRU

SEAGRU

Seattle/Tacoma Intl

Fri 11/14

8:00 am-10:20 am

1 stop21h 20m

Sao Paulo Guarulhos Intl

Wed 1/7

9:30 pm-11:07 am

1 stop18h 37m

$600

SeattleSao Paulo

SEA - GRU

SEAGRU

Seattle/Tacoma Intl

Mon 11/17

8:00 am-10:20 am

1 stop21h 20m

Sao Paulo Guarulhos Intl

Mon 1/5

9:45 pm-11:32 am

1 stop18h 47m

$600

SeattleSao Paulo

SEA - GRU

SEAGRU

Seattle/Tacoma Intl

Tue 11/18

11:27 am-9:55 am

1 stop17h 28m

Sao Paulo Guarulhos Intl

Wed 1/7

9:00 pm-8:00 pm

1 stop28h 00m

$600

SeattleSao Paulo

SEA - GRU

SEAGRU

Seattle/Tacoma Intl

Tue 4/7

9:25 am-9:30 am

2 stops20h 05m

Sao Paulo Guarulhos Intl

Tue 4/21

10:20 pm-7:12 pm

2 stops24h 52m

$600

SeattleSao Paulo

SEA - GRU

SEAGRU

Seattle/Tacoma Intl

Wed 11/12

7:10 am-12:45 pm

2 stops24h 35m

Sao Paulo Guarulhos Intl

Wed 1/7

9:00 pm-8:00 pm

1 stop28h 00m

$600

SeattleSao Paulo

SEA - GRU

SEAGRU

Seattle/Tacoma Intl

Fri 11/14

8:00 am-10:20 am

1 stop21h 20m

Sao Paulo Guarulhos Intl

Mon 1/5

9:45 pm-6:14 pm

1 stop25h 29m

$600

SeattleSao Paulo

SEA - GRU

SEAGRU

Seattle/Tacoma Intl

Thu 11/13

8:00 am-10:20 am

1 stop21h 20m

Sao Paulo Guarulhos Intl

Sun 1/4

10:25 pm-8:57 pm

1 stop27h 32m

$600

SeattleSao Paulo

SEA - GRU

SEAGRU

Seattle/Tacoma Intl

Wed 11/12

7:10 am-9:30 am

1 stop21h 20m

Sao Paulo Guarulhos Intl

Mon 1/5

9:45 pm-6:14 pm

1 stop25h 29m

$600

SeattleSao Paulo

SEA - GRU

SEAGRU

Seattle/Tacoma Intl

Sun 11/16

7:00 am-7:15 am

1 stop19h 15m

Sao Paulo Guarulhos Intl

Mon 1/5

9:45 pm-6:14 pm

1 stop25h 29m

$600

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 40 results
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Compare providers for flights from Seattle to Sao Paulo

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Sao Paulo in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Sao Paulo flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seattle-Sao Paulo flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Seattle-Sao Paulo flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Sao Paulo flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Sao Paulo flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 October 24, 2025.

The best time to book flights from Seattle to Sao Paulo is 2 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 $391). Flying from Seattle to Sao Paulo in July is currently the most expensive (average of $569). 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 SEA to SAO?

Find hourly flight availability from Seattle 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 October 30, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 14% on flights from Seattle to Sao Paulo by exploring options for tickets in the morning.

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 October 30, 2025.
Get a feel of what it's like to fly with Delta, LATAM Airlines, and United Airlines from Seattle to Sao Paulo by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,993 reviews

Boarding

8.2

Crew

8.5

Overall

7.9

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,993 reviews
Delta
7.9
Good
7,993 reviews

Boarding

8.2

Crew

8.5

Overall

7.9

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
LATAM Airlines
7.5
Good
1,872 reviews
Delta
7.9
Good
7,993 reviews

Boarding

8.2

Crew

8.5

Overall

7.9

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,998 reviews
Delta
7.9
Good
7,993 reviews

Boarding

8.2

Crew

8.5

Overall

7.9

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
GOL
7.3
Good
1,122 reviews
Delta
7.9
Good
7,993 reviews

Boarding

8.2

Crew

8.5

Overall

7.9

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,030 reviews
Delta
7.9
Good
7,993 reviews

Boarding

8.2

Crew

8.5

Overall

7.9

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers 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 6 different airlines.

  • How long is the flight from Seattle to Sao Paulo?

    Airlines like Delta, United Airlines, and GOL fly from Seattle to Sao Paulo in about 21h 20m. The time it takes to get you to your destination can typically vary by up to 18h 59m. Airlines will cover a distance of 6774 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Seattle to Sao Paulo round-trip?

    Flying on American Airlines is currently your cheapest option to Sao Paulo, with prices starting at $465. Additional round-trip tickets that might be worth considering are offered by LATAM Airlines and United Airlines, with the lowest prices starting at $494 and $498, respectively. These flights start at 36% lower than the current average price 3 months from now.

  • What are the most popular routes from Seattle to Sao Paulo?

    While some choose either Seattle/Tacoma Intl - Sao Paulo Viracopos or Seattle/Tacoma Intl - Sao Paulo Congonhas, Seattle/Tacoma Intl - Sao Paulo Guarulhos Intl is the most popular route from Seattle to Sao Paulo.

  • 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 $391). Flying from Seattle to Sao Paulo in July is currently the most expensive (average of $569). 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

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Alternative routes for Seattle to Sao Paulo

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Guarulhos Intl flights
Seattle to Viracopos flights
Portland to Guarulhos Intl flights

Top 6 airlines flying from Seattle to Sao Paulo

Discover the top 6 airlines that operate flights from Seattle 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$465Average$786FlexibilityNo cancel feeOn-time71%
LATAM AirlinesCheapest$494Average$687FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$498Average$659FlexibilityNo cancel feeOn-time69%
DeltaCheapest$498Average$734FlexibilityNo cancel feeOn-timeN/A
GOLCheapest$605Average$1,249FlexibilityNo cancel feeOn-time74%
Air CanadaCheapest$745Average$1,186FlexibilityNo cancel feeOn-time67%

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