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 Air Canada ($582), GOL ($632), and United Airlines ($713).

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 $1,245 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.

$446+ Flights from Washington to Rio de Janeiro Santos Dumont Airport, Brazil - Compare & Save Big

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Cheap flight deals from Washington to Santos Dumont

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$728 (Flightnetwork)
One-way from	$446 (Kiwi.com)
Popular in	July
Cheapest in	November
Average price	$1,301

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. 7% potential increase in price ($95 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 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 abril 25, 2025.

lun. 6/97:20 amSEA - SDU

3 stops28h 30mMultiple Airlines

lun. 6/161:00 pmSDU - SEA

2 stops25h 51mMultiple Airlines

Deal found 4/25

$728

dom. 6/17:20 amSEA - SDU

2 stops28h 30mAir Canada

mar. 6/171:00 pmSDU - SEA

2 stops25h 51mAir Canada

Deal found 4/25

$747

vie. 9/57:20 amSEA - SDU

2 stops22h 15mLATAM Airlines

lun. 9/158:20 pmSDU - SEA

2 stops22h 07mLATAM Airlines

Deal found 4/25

$1,100

dom. 8/310:05 pmSEA - SDU

2 stops37h 45mUnited Airlines

dom. 8/101:00 pmSDU - SEA

2 stops33h 58mUnited Airlines

Deal found 4/24

$1,159

lun. 6/95:40 pmPDX - SDU

3 stops35h 10mMultiple Airlines

lun. 6/166:10 amSDU - PDX

3 stops33h 07mMultiple Airlines

Deal found 4/25

$1,186

mar. 5/277:14 amPDX - SDU

2 stops26h 21mLATAM Airlines

dom. 6/12:20 pmSDU - PDX

2 stops25h 44mLATAM Airlines

Deal found 4/25

$1,472

vie. 4/2510:10 pmSEA - SDU

2 stops38h 40mGOL

sáb. 5/311:35 amSDU - SEA

2 stops40h 04mGOL

Deal found 4/25

$2,342

vie. 5/166:00 amPDX - SDU

2 stops23h 35mDelta

lun. 5/268:20 pmSDU - PDX

2 stops20h 40mDelta

Deal found 4/25

$8,395

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 abril 25, 2025.

lun. 6/97:20 amSEA - SDU

3 stops28h 30mMultiple Airlines

lun. 6/161:00 pmSDU - SEA

2 stops25h 51mMultiple Airlines

Deal found 4/25

$728

dom. 6/17:20 amSEA - SDU

2 stops28h 30mAir Canada

mar. 6/171:00 pmSDU - SEA

2 stops25h 51mAir Canada

Deal found 4/25

$747

vie. 9/57:20 amSEA - SDU

2 stops22h 15mLATAM Airlines

lun. 9/158:20 pmSDU - SEA

2 stops22h 07mLATAM Airlines

Deal found 4/25

$1,100

dom. 8/310:05 pmSEA - SDU

2 stops37h 45mUnited Airlines

dom. 8/101:00 pmSDU - SEA

2 stops33h 58mUnited Airlines

Deal found 4/24

$1,159

lun. 6/95:40 pmPDX - SDU

3 stops35h 10mMultiple Airlines

lun. 6/166:10 amSDU - PDX

3 stops33h 07mMultiple Airlines

Deal found 4/25

$1,186

lun. 6/92:12 pmPDX - SDU

2 stops21h 38mUnited Airlines

lun. 6/161:00 pmSDU - PDX

2 stops26h 56mUnited Airlines

Deal found 4/25

$1,357

mar. 5/277:14 amPDX - SDU

2 stops26h 21mLATAM Airlines

dom. 6/12:20 pmSDU - PDX

2 stops25h 44mLATAM Airlines

Deal found 4/25

$1,472

vie. 5/166:00 amPDX - SDU

2 stops23h 35mDelta

lun. 5/268:20 pmSDU - PDX

2 stops20h 40mDelta

Deal found 4/25

$8,395

Last-minute flights from Washington to Santos Dumont
Discover last-minute flight deals from Washington to Santos Dumont. Data last updated abril 25, 2025 and is based on user searches.

vie. 4/2510:10 pmSEA - SDU

2 stops38h 40mGOL

sáb. 5/311:35 amSDU - SEA

2 stops40h 04mGOL

Deal found 4/25

$2,342

sáb. 4/269:25 amSEA - SDU

2 stops20h 10mLATAM Airlines

sáb. 5/38:20 pmSDU - SEA

2 stops22h 25mLATAM Airlines

Deal found 4/25

$2,891

vie. 5/166:00 amPDX - SDU

2 stops23h 35mDelta

lun. 5/268:20 pmSDU - PDX

2 stops20h 40mDelta

Deal found 4/25

$8,395

dom. 5/182:14 pmPDX - SDU

2 stops21h 36mMultiple Airlines

dom. 5/251:05 pmSDU - PDX

2 stops26h 51mMultiple Airlines

Deal found 4/25

$1,532

lun. 5/2611:30 amSEA - SDU

2 stops24h 20mMultiple Airlines

sáb. 5/311:05 pmSDU - SEA

2 stops34h 32mMultiple Airlines

Deal found 4/25

$1,246

mar. 5/277:14 amPDX - SDU

2 stops26h 21mLATAM Airlines

dom. 6/12:20 pmSDU - PDX

2 stops25h 44mLATAM Airlines

Deal found 4/25

$1,472

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 abril 25, 2025.

jue. 6/261:19 pmPDX - SDU

3 stops37h 51mMultiple Airlines

Deal found 4/25

$446

lun. 6/911:35 amSEA - SDU

2 stops24h 15mAir Canada

Deal found 4/25

$582

lun. 6/910:00 amSEA - SDU

3 stops25h 50mMultiple Airlines

Deal found 4/25

$626

mar. 8/2610:58 pmSEA - SDU

2 stops37h 52mGOL

Deal found 4/25

$632

mar. 8/267:05 amSEA - SDU

3 stops28h 45mUnited Airlines

Deal found 4/25

$713

mié. 9/248:35 amPDX - SDU

3 stops27h 15mUnited Airlines

Deal found 4/25

$764

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

lun. 6/9

7:20 am-3:50 pm

3 stops28h 30m

Rio de Janeiro Santos Dumont

lun. 6/16

1:00 pm-10:51 am

2 stops25h 51m

$728

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

dom. 6/1

7:20 am-3:50 pm

2 stops28h 30m

Rio de Janeiro Santos Dumont

mar. 6/17

1:00 pm-10:51 am

2 stops25h 51m

$747

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

vie. 9/5

7:20 am-9:35 am

2 stops22h 15m

Rio de Janeiro Santos Dumont

lun. 9/15

8:20 pm-2:27 pm

2 stops22h 07m

$1,100

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

dom. 8/3

10:05 pm-3:50 pm

2 stops37h 45m

Rio de Janeiro Santos Dumont

dom. 8/10

1:00 pm-6:58 pm

2 stops33h 58m

$1,159

PortlandRio de Janeiro

PDX - SDU

PDXSDU

Portland

lun. 6/9

5:40 pm-8:50 am

3 stops35h 10m

Rio de Janeiro Santos Dumont

lun. 6/16

6:10 am-11:17 am

3 stops33h 07m

$1,186

PortlandRio de Janeiro

PDX - SDU

PDXSDU

Portland

lun. 6/9

2:12 pm-3:50 pm

2 stops21h 38m

Rio de Janeiro Santos Dumont

lun. 6/16

1:00 pm-11:56 am

2 stops26h 56m

$1,357

PortlandRio de Janeiro

PDX - SDU

PDXSDU

Portland

mar. 5/27

7:14 am-1:35 pm

2 stops26h 21m

Rio de Janeiro Santos Dumont

dom. 6/1

2:20 pm-12:04 pm

2 stops25h 44m

$1,472

PortlandRio de Janeiro

PDX - SDU

PDXSDU

Portland

vie. 5/16

6:00 am-9:35 am

2 stops23h 35m

Rio de Janeiro Santos Dumont

lun. 5/26

8:20 pm-1:00 pm

2 stops20h 40m

$8,395

PortlandRio de Janeiro

PDX - SDU

PDXSDU

Portland

jue. 6/26

1:19 pm-7:10 am

3 stops37h 51m

$446

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

lun. 6/9

11:35 am-3:50 pm

2 stops24h 15m

$582

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/25

Showing 1-10 of 14 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

7,920 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

7,920 reviews

Delta

8.0

Very good

7,920 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

1,767 reviews

Delta

8.0

Very good

7,920 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

8,685 reviews

Delta

8.0

Very good

7,920 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

1,066 reviews

Delta

8.0

Very good

7,920 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

9,210 reviews

Delta

8.0

Very good

7,920 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 Air Canada ($582), GOL ($632), and United Airlines ($713).
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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$446+ 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 6/26. 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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2. Select your favorite providers

3. Compare prices and book

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 abril 25, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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 abril 25, 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 abril 25, 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 abril 25, 2025.