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Santos Dumont

$343+ Cheap flights from Seattle (SEA) to Santos Dumont, Brazil (SDU)

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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SDU
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Seattle to Santos Dumont

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Santos Dumont (SDU). 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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$821
(Trip.com)

One-way from

$343
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$1,178
Provider with most accurate pricing for Seattle/Tacoma Intl-Rio de Janeiro (RIO) flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Rio de Janeiro (RIO) flights.
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From Seattle/Tacoma Intl to Rio de Janeiro Santos Dumont
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One-way flight from Seattle/Tacoma Intl to Rio de Janeiro Santos Dumont
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Highest demand for flights based on searches. 2% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Seattle to Santos Dumont

Cheapest flights from Seattle to Santos Dumont
Explore the most affordable flight options available from Seattle to Santos Dumont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This Trip.com deal was found by Cheapflights users on 2/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/57:10 amSEA - SDU
2 stops28h 40mMultiple Airlines
Sat 4/121:00 pmSDU - SEA
2 stops29h 16mMultiple Airlines
Deal found 2/19$821
This SmartFares deal was found by Cheapflights users on 2/19. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/16:05 amSEA - SDU
2 stops29h 45mAir Canada
Tue 4/87:55 amSDU - SEA
2 stops41h 31mAir Canada
Deal found 2/19$952
This eDestinos deal was found by Cheapflights users on 2/19. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/110:01 pmSEA - SDU
2 stops36h 04mGOL
Tue 4/88:30 pmSDU - SEA
2 stops31h 09mGOL
Deal found 2/19$1,036
This KAYAK deal was found by Cheapflights users on 2/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/128:50 amSEA - SDU
2 stops24h 45mLATAM Airlines
Sun 4/208:20 pmSDU - SEA
2 stops20h 06mLATAM Airlines
Deal found 2/19$1,337
This Delta deal was found by Cheapflights users on 2/18. 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.
Tue 3/1812:00 pmSEA - SDU
2 stops22h 00mDelta
Tue 4/12:20 pmSDU - SEA
2 stops24h 25mDelta
Deal found 2/18$3,902

Find flights from Seattle to Santos Dumont within your budget

Customize your flight search to find flights from Seattle to Santos Dumont 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 February 20, 2025.

Fly from

Seattle

Fly to

Santos Dumont

Route

Depart

Return

Price

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Wed 3/26

9:48 am-12:25 pm

3 stops46h 37m

Rio de Janeiro Santos Dumont

Wed 4/2

6:15 am-8:43 am

3 stops30h 28m

$738

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Tue 4/1

6:05 am-3:50 pm

2 stops29h 45m

Rio de Janeiro Santos Dumont

Tue 4/8

7:55 am-9:26 pm

2 stops41h 31m

$952

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Tue 4/1

10:01 pm-2:05 pm

2 stops36h 04m

Rio de Janeiro Santos Dumont

Tue 4/8

8:30 pm-11:39 pm

2 stops31h 09m

$1,036

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Sat 4/12

8:50 am-1:35 pm

2 stops24h 45m

Rio de Janeiro Santos Dumont

Sun 4/20

8:20 pm-12:26 pm

2 stops20h 06m

$1,337

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Tue 6/3

1:40 pm-1:40 pm

2 stops20h 00m

Rio de Janeiro Santos Dumont

Fri 6/13

8:20 pm-7:29 pm

2 stops27h 09m

$6,287

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Sun 4/27

7:46 pm-7:10 am

3 stops31h 24m

$343

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Sun 4/6

6:05 am-3:50 pm

2 stops29h 45m

$607

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Sun 3/2

7:15 am-2:15 pm

3 stops26h 00m

$693

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Thu 6/19

8:40 am-1:40 pm

2 stops25h 00m

$713

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Fri 4/25

7:18 am-9:35 am

2 stops22h 17m

$848

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Best time to book a flight from Seattle to Santos Dumont

Have a flexible travel schedule? Discover the best time to fly to Santos Dumont 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.

Travel insights for flights from Seattle to Santos Dumont

Get recent, data-driven insights about flights from Seattle to Santos Dumont including ideal travel times, pricing trends, and more.

Rainfall in Santos Dumont by month

Plan your trip to Santos Dumont by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Rio de Janeiro Santos Dumont Airport ranges from 1.6 - 5.1 inches per month. January is typically the wettest month, when rainfall can reach 5.1 in. July is typically the driest time to visit Rio de Janeiro Santos Dumont Airport when rainfall is around 1.6 in.

Temperature in Santos Dumont by month

Plan your trip to Santos Dumont by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Rio de Janeiro Santos Dumont Airport, use this chart to help with planning. For those seeking warmer temperatures, February is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 69.8 F).

Reviews of airlines servicing Santos Dumont

Get insights into the airlines that provide service to Santos Dumont. 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 Santos Dumont. Reviews last updated February 20, 2025.
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,220 reviews
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

LATAM Airlines
7.5
Good
1,795 reviews
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,766 reviews
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

GOL
7.3
Good
1,066 reviews
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Canada
7.0
Good
8,748 reviews
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Santos Dumont. 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 Rio de Janeiro Santos Dumont?

    If you book a flight to Rio de Janeiro Santos Dumont from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There are 0 flights from Seattle/Tacoma Intl to Rio de Janeiro Santos Dumont per day from 0 different airlines.

  • What are the cheapest airlines to fly from Seattle to Rio de Janeiro Santos Dumont Airport one-way?

    $607 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on United Airlines and LATAM Airlines, with prices starting from $693 and $813, respectively.

  • Can I find deals for flights from Seattle to Santos Dumont that include hotel bookings?

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

  • How can I find direct flights from Seattle to Santos Dumont?

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

  • Can I find deals for business class flights from Seattle to Santos Dumont?

    Yes. Cheapflights offers flight deals from Seattle to Santos Dumont by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Seattle to Santos Dumont

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Rio de Janeiro–Galeão Intl flights
Portland to Rio de Janeiro–Galeão Intl flights
Portland to Santos Dumont flights
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