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

$772 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on LATAM Airlines and GOL, with prices starting from $796 and $847, respectively.

How far in advance should I book a flight from Seattle to Rio de Janeiro Santos Dumont Airport?

Users have found that booking a flight from Seattle to Rio de Janeiro Santos Dumont Airport at least 8 days early can save you up to 58% on average compared to booking a flight this week. If booking 8 days before your flight isn’t an option for you, users have found flights from Seattle to Rio de Janeiro Santos Dumont Airport for as little as $770 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $1,223 for flights departing within the next 3 days.

What is the cheapest month to fly from Seattle to Rio de Janeiro Santos Dumont Airport?

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, October can be a great choice for travel to Rio de Janeiro Santos Dumont Airport. Flights to Rio de Janeiro Santos Dumont Airport from Seattle in October are about $1,270 on average during October, but can be found for as low as $796.

What is the cheapest time of day to fly from SEA to SDU?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Rio de Janeiro Santos Dumont Airport as you normally would.

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.

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.

$441+ Flights from Seattle to Rio de Janeiro Santos Dumont Airport, Brazil

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Seattle to Santos Dumont with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Seattle to Santos Dumont

Round-trip from	$724 (Gotogate)
One-way from	$441 (Kiwi.com)
Popular in	July
Cheapest in	October
Average price	$1,454

From Seattle/Tacoma Intl to Rio de Janeiro Santos Dumont

Search Deals

One-way flight from Seattle/Tacoma Intl to Rio de Janeiro Santos Dumont

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($119 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($24 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in June 2025

Search Deals

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 June 12, 2025.

Mon 9/2212:10 pmSEA - SDU

2 stops23h 40mMultiple Airlines

Sun 9/283:00 pmSDU - SEA

2 stops24h 09mMultiple Airlines

Deal found 6/11

$724

Thu 9/2512:10 pmSEA - SDU

2 stops23h 40mAir Canada

Thu 10/27:55 amSDU - SEA

2 stops39h 36mAir Canada

Deal found 6/9

$745

Thu 11/2711:50 amSEA - SDU

2 stops20h 50mLATAM Airlines

Sun 12/78:20 pmSDU - SEA

2 stops23h 07mLATAM Airlines

Deal found 6/11

$1,160

Thu 8/75:26 pmSEA - SDU

2 stops42h 24mUnited Airlines

Fri 8/151:00 pmSDU - SEA

2 stops33h 58mUnited Airlines

Deal found 6/10

$1,251

Thu 7/108:16 pmSEA - SDU

2 stops22h 09mGOL

Sun 7/206:10 amSDU - SEA

2 stops21h 47mGOL

Deal found 6/12

$1,482

Thu 12/116:00 amSEA - SDU

2 stops22h 05mDelta

Sun 1/48:20 pmSDU - SEA

2 stops21h 04mDelta

Deal found 6/11

$3,804

Best flights from Seattle to Santos Dumont
Discover carefully curated flight deals from Seattle to Santos Dumont that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2025.

Mon 9/2212:10 pmSEA - SDU

2 stops23h 40mMultiple Airlines

Sun 9/283:00 pmSDU - SEA

2 stops24h 09mMultiple Airlines

Deal found 6/11

$724

Thu 9/2512:10 pmSEA - SDU

2 stops23h 40mAir Canada

Thu 10/27:55 amSDU - SEA

2 stops39h 36mAir Canada

Deal found 6/9

$745

Thu 11/278:00 amSEA - SDU

2 stops20h 05mLATAM Airlines

Sun 12/78:20 pmSDU - SEA

2 stops23h 07mLATAM Airlines

Deal found 6/12

$1,160

Thu 8/75:26 pmSEA - SDU

2 stops42h 24mUnited Airlines

Fri 8/151:00 pmSDU - SEA

2 stops33h 58mUnited Airlines

Deal found 6/10

$1,251

Thu 7/108:16 pmSEA - SDU

2 stops22h 09mGOL

Sun 7/206:10 amSDU - SEA

2 stops21h 47mGOL

Deal found 6/12

$1,482

Mon 8/111:30 pmSEA - SDU

2 stops20h 10mDelta

Fri 8/228:20 pmSDU - SEA

2 stops26h 40mDelta

Deal found 6/11

$3,863

Last-minute flights from Seattle to Santos Dumont
Discover last-minute flight deals from Seattle to Santos Dumont. Data last updated June 12, 2025 and is based on user searches.

Tue 6/175:30 amSEA - SDU

3 stops28h 35mMultiple Airlines

Tue 6/242:20 pmSDU - SEA

2 stops24h 31mMultiple Airlines

Deal found 6/10

$1,395

Tue 6/178:00 amSEA - SDU

2 stops25h 40mLATAM Airlines

Tue 6/248:20 pmSDU - SEA

2 stops20h 22mLATAM Airlines

Deal found 6/10

$1,479

Thu 7/1012:05 pmSEA - SDU

2 stops22h 15mAir Canada

Tue 7/2211:25 amSDU - SEA

2 stops27h 35mAir Canada

Deal found 6/12

$1,076

Thu 7/108:16 pmSEA - SDU

2 stops22h 09mGOL

Sun 7/206:10 amSDU - SEA

2 stops21h 47mGOL

Deal found 6/12

$1,482

Sat 7/121:34 pmSEA - SDU

2 stops20h 01mDelta

Mon 7/218:20 pmSDU - SEA

2 stops22h 25mDelta

Deal found 6/12

$4,432

Tue 7/155:30 pmSEA - SDU

3 stops24h 55mMultiple Airlines

Tue 7/2211:25 amSDU - SEA

2 stops27h 45mMultiple Airlines

Deal found 6/10

$1,130

Sun 7/275:00 amSEA - SDU

2 stops29h 20mUnited Airlines

Sun 8/311:25 amSDU - SEA

2 stops32h 55mUnited Airlines

Deal found 6/12

$1,310

One-way flights from Seattle to Santos Dumont
Search for one-way flight options from Seattle to Santos Dumont. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

Thu 9/48:37 amSEA - SDU

2 stops33h 48mMultiple Airlines

Deal found 6/11

$441

Sun 8/312:20 amSEA - SDU

2 stops34h 00mUnited Airlines

Deal found 6/10

$772

Tue 8/1911:20 pmSEA - SDU

2 stops30h 15mLATAM Airlines

Deal found 6/10

$796

Tue 6/178:01 pmSEA - SDU

2 stops46h 24mGOL

Deal found 6/12

$847

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to Rio de Janeiro Santos Dumont Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Tue 8/5

12:05 pm-2:20 pm

2 stops22h 15m

Rio de Janeiro Santos Dumont

Sun 8/10

7:55 am-11:00 am

2 stops31h 05m

$960

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Thu 7/10

12:05 pm-2:20 pm

2 stops22h 15m

Rio de Janeiro Santos Dumont

Tue 7/22

11:25 am-11:00 am

2 stops27h 35m

$1,076

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Thu 8/7

5:26 pm-3:50 pm

2 stops42h 24m

Rio de Janeiro Santos Dumont

Fri 8/15

1:00 pm-6:58 pm

2 stops33h 58m

$1,251

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Tue 6/17

8:00 am-1:40 pm

2 stops25h 40m

Rio de Janeiro Santos Dumont

Tue 6/24

8:20 pm-12:42 pm

2 stops20h 22m

$1,479

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Thu 7/10

8:16 pm-10:25 pm

2 stops22h 09m

Rio de Janeiro Santos Dumont

Sun 7/20

6:10 am-11:57 pm

2 stops21h 47m

$1,482

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Mon 8/11

1:30 pm-1:40 pm

2 stops20h 10m

Rio de Janeiro Santos Dumont

Fri 8/22

8:20 pm-7:00 pm

2 stops26h 40m

$3,863

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Thu 9/4

8:37 am-10:25 pm

2 stops33h 48m

$441

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Sun 8/3

12:20 am-2:20 pm

2 stops34h 00m

$772

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Tue 8/19

11:20 pm-9:35 am

2 stops30h 15m

$796

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Tue 6/17

8:01 pm-10:25 pm

2 stops46h 24m

$847

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Rio de Janeiro Santos Dumont Airport

Rainfall in Santos Dumont 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

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

Delta

8.0

Very good

7,950 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,950 reviews

Delta

8.0

Very good

7,950 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

LATAM Airlines

7.5

Good

1,785 reviews

Delta

8.0

Very good

7,950 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,790 reviews

Delta

8.0

Very good

7,950 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

GOL

7.3

Good

1,073 reviews

Delta

8.0

Very good

7,950 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Air Canada

7.1

Good

9,531 reviews

Delta

8.0

Very good

7,950 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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?
$772 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on LATAM Airlines and GOL, with prices starting from $796 and $847, 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

Browse thousands of different options on Cheapflights for your next trip

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.

$441+ 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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Seattle to Santos Dumont with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Seattle to Santos Dumont

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Seattle to Santos Dumont

Cheapest flights from Seattle to Santos DumontExplore 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 June 12, 2025.

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 June 12, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to Rio de Janeiro Santos Dumont Airport that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Rio de Janeiro Santos Dumont Airport

Rainfall in Santos Dumont by month

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

Temperature in Santos Dumont by month

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

Reviews of airlines servicing Santos Dumont

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?

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

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

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

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

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.

Alternative routes for Seattle to Santos Dumont

See prices for flight routes from nearby airports that may be better suited for you.

100% Free

Book with Flexibility

Travel Smart

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 June 12, 2025.