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

The cheapest airlines for a one-way flight from State of Washington to Rio de Janeiro Santos Dumont Airport are GOL ($479), Air Canada ($633), and LATAM Airlines ($692).

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

To save up to 56% on this flight, we recommend booking at least 8 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from State of Washington to Rio de Janeiro Santos Dumont Airport from $770 1-2 weeks out and tickets from $1,204 for flights departing within the next 72 hours.

What is the cheapest month to fly from State of Washington to Rio de Janeiro Santos Dumont Airport?

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, November can be a great choice for travel to Rio de Janeiro Santos Dumont Airport. Flights to Rio de Janeiro Santos Dumont Airport from State of Washington in November are about $1,246 on average during November, but can be found for as low as $797.

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

When flying from State of Washington to Rio de Janeiro Santos Dumont Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Washington 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.

$429+ Flights from Washington to Rio de Janeiro Santos Dumont Airport, Brazil

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Cheap flight deals from Washington to Santos Dumont

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$857 (Mytrip)
One-way from	$429 (Kiwi.com)
Popular in	July
Cheapest in	November
Average price	$1,316

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 Washington to Rio de Janeiro Santos Dumont

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One-way flight from Washington to Rio de Janeiro Santos Dumont

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Highest demand for flights based on searches. 6% potential increase in price ($92 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($20 potential savings vs. average RT price).

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Average for round-trip flights in April 2025

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Find flight deals from Washington to Santos Dumont

Cheapest flights from Washington to Santos Dumont
Explore the most affordable flight options available from Washington to Santos Dumont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 4, 2025.

Tue 5/203:20 pmSEA - SDU

3 stops27h 05mMultiple Airlines

Fri 5/306:15 amSDU - SEA

3 stops36h 10mMultiple Airlines

Deal found 4/3

$857

Fri 5/2311:30 amSEA - SDU

2 stops24h 20mAir Canada

Sat 6/77:50 amSDU - SEA

2 stops40h 47mAir Canada

Deal found 4/3

$957

Wed 8/2010:58 pmSEA - SDU

2 stops31h 42mGOL

Wed 8/276:00 amSDU - SEA

2 stops22h 28mGOL

Deal found 4/3

$1,055

Tue 10/217:00 amPDX - SDU

2 stops22h 35mLATAM Airlines

Sat 11/18:20 pmSDU - PDX

2 stops20h 33mLATAM Airlines

Deal found 4/3

$1,192

Sun 8/105:00 amSEA - SDU

2 stops30h 50mUnited Airlines

Sun 8/311:00 pmSDU - SEA

2 stops30h 51mUnited Airlines

Deal found 4/3

$1,212

Thu 11/2710:20 amSEA - SDU

2 stops22h 20mLATAM Airlines

Sun 12/72:25 pmSDU - SEA

2 stops26h 33mLATAM Airlines

Deal found 4/3

$1,221

Tue 4/86:13 pmPDX - SDU

3 stops42h 17mMultiple Airlines

Tue 4/156:00 amSDU - PDX

3 stops35h 37mMultiple Airlines

Deal found 4/3

$1,275

Wed 5/216:50 amPDX - SDU

2 stops29h 00mUnited Airlines

Tue 6/31:00 pmSDU - PDX

2 stops34h 55mUnited Airlines

Deal found 4/4

$1,357

Mon 4/77:35 amSEA - SDU

2 stops22h 00mDelta

Sun 4/208:20 pmSDU - SEA

2 stops29h 24mDelta

Deal found 4/3

$1,782

Best flights from Washington to Santos Dumont
Discover carefully curated flight deals from Washington to Santos Dumont that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 4, 2025.

Tue 5/203:20 pmSEA - SDU

3 stops27h 05mMultiple Airlines

Fri 5/306:15 amSDU - SEA

3 stops36h 10mMultiple Airlines

Deal found 4/3

$857

Fri 5/2311:30 amSEA - SDU

2 stops24h 20mAir Canada

Sat 6/77:50 amSDU - SEA

2 stops40h 47mAir Canada

Deal found 4/3

$957

Wed 8/2010:58 pmSEA - SDU

2 stops31h 42mGOL

Wed 8/276:00 amSDU - SEA

2 stops22h 28mGOL

Deal found 4/3

$1,055

Sun 8/105:00 amSEA - SDU

2 stops30h 50mUnited Airlines

Sun 8/311:00 pmSDU - SEA

2 stops30h 51mUnited Airlines

Deal found 4/3

$1,212

Thu 6/198:20 amSEA - SDU

2 stops21h 15mLATAM Airlines

Sat 6/282:20 pmSDU - SEA

2 stops28h 20mLATAM Airlines

Deal found 4/4

$1,354

Wed 5/216:50 amPDX - SDU

2 stops29h 00mUnited Airlines

Tue 6/31:00 pmSDU - PDX

2 stops34h 55mUnited Airlines

Deal found 4/4

$1,357

Fri 4/2510:10 amPDX - SDU

3 stops23h 40mMultiple Airlines

Sat 5/36:15 amSDU - PDX

3 stops31h 42mMultiple Airlines

Deal found 4/3

$1,396

Fri 4/257:00 amPDX - SDU

2 stops22h 35mLATAM Airlines

Sun 5/42:20 pmSDU - PDX

2 stops25h 38mLATAM Airlines

Deal found 4/3

$1,793

Sat 7/127:20 amSEA - SDU

2 stops22h 15mDelta

Tue 7/298:20 pmSDU - SEA

2 stops21h 14mDelta

Deal found 4/4

$6,307

Last-minute flights from Washington to Santos Dumont
Discover last-minute flight deals from Washington to Santos Dumont. Data last updated April 4, 2025 and is based on user searches.

Mon 4/77:35 amSEA - SDU

2 stops22h 00mDelta

Sun 4/208:20 pmSDU - SEA

2 stops29h 24mDelta

Deal found 4/3

$1,782

Tue 4/86:13 pmPDX - SDU

3 stops42h 17mMultiple Airlines

Tue 4/156:00 amSDU - PDX

3 stops35h 37mMultiple Airlines

Deal found 4/3

$1,275

Wed 4/96:00 amSEA - SDU

2 stops29h 50mAir Canada

Mon 4/217:55 amSDU - SEA

2 stops41h 46mAir Canada

Deal found 4/3

$1,005

Wed 4/97:10 amSEA - SDU

2 stops22h 25mLATAM Airlines

Sun 4/208:20 pmSDU - SEA

2 stops29h 24mLATAM Airlines

Deal found 4/3

$1,740

Thu 4/107:35 amSEA - SDU

2 stops25h 50mDelta

Sun 4/208:20 pmSDU - SEA

2 stops29h 24mDelta

Deal found 4/3

$1,782

Sat 4/126:00 amSEA - SDU

2 stops29h 50mMultiple Airlines

Wed 4/237:55 amSDU - SEA

2 stops41h 46mMultiple Airlines

Deal found 4/4

$1,001

Sat 4/1210:10 pmSEA - SDU

2 stops38h 40mGOL

Sun 4/2011:35 amSDU - SEA

2 stops40h 04mGOL

Deal found 4/3

$1,468

Fri 4/257:00 amPDX - SDU

2 stops22h 35mLATAM Airlines

Sun 5/42:20 pmSDU - PDX

2 stops25h 38mLATAM Airlines

Deal found 4/3

$1,793

Fri 5/29:25 amSEA - SDU

2 stops21h 55mLATAM Airlines

Fri 5/95:40 pmSDU - SEA

2 stops24h 51mLATAM Airlines

Deal found 4/3

$1,367

Sat 5/175:18 pmSEA - SDU

2 stops42h 32mUnited Airlines

Sat 5/241:05 pmSDU - SEA

2 stops26h 30mUnited Airlines

Deal found 4/3

$1,303

Tue 5/203:20 pmSEA - SDU

3 stops27h 05mMultiple Airlines

Fri 5/306:15 amSDU - SEA

3 stops36h 10mMultiple Airlines

Deal found 4/3

$857

Wed 5/216:50 amPDX - SDU

2 stops29h 00mUnited Airlines

Tue 6/31:00 pmSDU - PDX

2 stops34h 55mUnited Airlines

Deal found 4/4

$1,357

One-way flights from Washington to Santos Dumont
Search for one-way flight options from Washington to Santos Dumont. Find affordable one-way fares based on user searches. Data last updated April 4, 2025.

Wed 4/167:51 pmSEA - SDU

3 stops43h 19mMultiple Airlines

Deal found 4/4

$429

Sat 4/267:00 amPDX - SDU

3 stops32h 10mMultiple Airlines

Deal found 4/3

$430

Thu 4/1710:10 pmSEA - SDU

2 stops32h 30mGOL

Deal found 4/4

$479

Mon 4/146:00 amSEA - SDU

2 stops29h 50mAir Canada

Deal found 4/4

$633

Wed 9/247:00 amPDX - SDU

2 stops22h 35mLATAM Airlines

Deal found 4/4

$692

Mon 9/17:00 amPDX - SDU

3 stops28h 50mUnited Airlines

Deal found 4/3

$764

Thu 5/86:15 amSEA - SDU

3 stops29h 35mUnited Airlines

Deal found 4/3

$810

Fri 4/187:00 amPDX - SDU

2 stops26h 50mDelta

Deal found 4/3

$813

Thu 5/17:30 amSEA - SDU

2 stops22h 05mLATAM Airlines

Deal found 4/4

$1,053

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington 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 5/20

3:20 pm-10:25 pm

3 stops27h 05m

Rio de Janeiro Santos Dumont

Fri 5/30

6:15 am-2:25 pm

3 stops36h 10m

$857

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Fri 5/23

11:30 am-3:50 pm

2 stops24h 20m

Rio de Janeiro Santos Dumont

Sat 6/7

7:50 am-8:37 pm

2 stops40h 47m

$957

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Wed 8/20

10:58 pm-10:40 am

2 stops31h 42m

Rio de Janeiro Santos Dumont

Wed 8/27

6:00 am-12:28 am

2 stops22h 28m

$1,055

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Sun 8/10

5:00 am-3:50 pm

2 stops30h 50m

Rio de Janeiro Santos Dumont

Sun 8/31

1:00 pm-3:51 pm

2 stops30h 51m

$1,212

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Thu 6/19

8:20 am-9:35 am

2 stops21h 15m

Rio de Janeiro Santos Dumont

Sat 6/28

2:20 pm-2:40 pm

2 stops28h 20m

$1,354

PortlandRio de Janeiro

PDX - SDU

PDXSDU

Portland

Wed 5/21

6:50 am-3:50 pm

2 stops29h 00m

Rio de Janeiro Santos Dumont

Tue 6/3

1:00 pm-7:55 pm

2 stops34h 55m

$1,357

PortlandRio de Janeiro

PDX - SDU

PDXSDU

Portland

Fri 4/25

10:10 am-1:50 pm

3 stops23h 40m

Rio de Janeiro Santos Dumont

Sat 5/3

6:15 am-9:57 am

3 stops31h 42m

$1,396

PortlandRio de Janeiro

PDX - SDU

PDXSDU

Portland

Fri 4/25

7:00 am-9:35 am

2 stops22h 35m

Rio de Janeiro Santos Dumont

Sun 5/4

2:20 pm-11:58 am

2 stops25h 38m

$1,793

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Sat 7/12

7:20 am-9:35 am

2 stops22h 15m

Rio de Janeiro Santos Dumont

Tue 7/29

8:20 pm-1:34 pm

2 stops21h 14m

$6,307

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Wed 4/16

7:51 pm-7:10 pm

3 stops43h 19m

$429

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/4

Showing 1-10 of 18 results

Best time to book a flight from Washington to Santos Dumont

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

See what other customers who have flown with Delta, LATAM Airlines and United Airlines from Washington to Rio de Janeiro have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,897 reviews

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

7,897 reviews

Delta

8.0

Very good

7,897 reviews

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

1,752 reviews

Delta

8.0

Very good

7,897 reviews

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

8,618 reviews

Delta

8.0

Very good

7,897 reviews

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

1,053 reviews

Delta

8.0

Very good

7,897 reviews

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

9,031 reviews

Delta

8.0

Very good

7,897 reviews

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

What are the cheapest airlines to fly from State of Washington to Rio de Janeiro Santos Dumont Airport one-way?
The cheapest airlines for a one-way flight from State of Washington to Rio de Janeiro Santos Dumont Airport are GOL ($479), Air Canada ($633), and LATAM Airlines ($692).
Can I find deals for flights from Washington to Santos Dumont that include hotel bookings?
Yes. In addition to deals on Washington to Santos Dumont flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington to Santos Dumont?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Santos Dumont.
Can I find deals for business class flights from Washington to Santos Dumont?
Yes. Cheapflights offers flight deals from Washington 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.

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$429+ Cheap flights from Washington 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 4/16. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington to Santos Dumont with Cheapflights

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Cheap flight deals from Washington to Santos Dumont

Keep the following information in mind while searching for Washington to Santos Dumont flight deals. Data was last updated April 4, 2025.

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Round-trip from

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Find flight deals from Washington to Santos Dumont

Cheapest flights from Washington to Santos DumontExplore the most affordable flight options available from Washington to Santos Dumont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 4, 2025.

Explore the most affordable flight options available from Washington to Santos Dumont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 4, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Washington to Santos Dumont

Have a flexible travel schedule? Discover the best time to fly to Santos Dumont from Washington with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington 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

See what other customers who have flown with Delta, LATAM Airlines and United Airlines from Washington to Rio de Janeiro have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Washington 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 are the cheapest airlines to fly from State of Washington to Rio de Janeiro Santos Dumont Airport one-way?

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

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

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

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Cheapest flights from Washington to Santos Dumont
Explore the most affordable flight options available from Washington to Santos Dumont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 4, 2025.