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Santos Dumont

$347+ 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 3/23. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SDU
Feb 28 — Mar 71
Fri 2/28
Fri 3/7
1 adult, Economy
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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 February 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$853
(Mytrip)

One-way from

$347
(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 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. 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 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 February 23, 2025.

This Mytrip deal was found by Cheapflights users on 2/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/97:01 pmPDX - SDU
3 stops35h 39mMultiple Airlines
Wed 4/166:15 amSDU - PDX
3 stops30h 07mMultiple Airlines
Deal found 2/22$853
This Air Canada deal was found by Cheapflights users on 2/22. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/237:20 amSEA - SDU
2 stops28h 30mAir Canada
Sat 5/317:50 amSDU - SEA
2 stops39h 47mAir Canada
Deal found 2/22$957
This Mytrip deal was found by Cheapflights users on 2/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/810:20 amSEA - SDU
2 stops20h 20mMultiple Airlines
Tue 4/157:55 amSDU - SEA
3 stops31h 40mMultiple Airlines
Deal found 2/22$962
This United Airlines deal was found by Cheapflights users on 2/22. 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.
Fri 3/1411:25 pmSEA - SDU
2 stops31h 55mUnited Airlines
Thu 3/271:00 pmSDU - SEA
2 stops26h 49mUnited Airlines
Deal found 2/22$1,005
This KAYAK deal was found by Cheapflights users on 2/22. 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.
Tue 8/1910:58 pmSEA - SDU
2 stops31h 42mGOL
Tue 9/28:30 pmSDU - SEA
2 stops32h 03mGOL
Deal found 2/22$1,082
This KAYAK deal was found by Cheapflights users on 2/22. 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.
Fri 4/257:18 amSEA - SDU
2 stops22h 17mLATAM Airlines
Sat 5/39:35 amSDU - SEA
2 stops33h 10mLATAM Airlines
Deal found 2/22$1,212
This United deal was found by Cheapflights users on 2/22. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/1511:58 pmPDX - SDU
2 stops35h 52mUnited Airlines
Sat 3/221:05 pmSDU - PDX
2 stops37h 34mUnited Airlines
Deal found 2/22$1,237
This KAYAK deal was found by Cheapflights users on 2/22. 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 11/17:00 amPDX - SDU
2 stops22h 15mLATAM Airlines
Tue 11/48:20 pmSDU - PDX
2 stops20h 17mLATAM Airlines
Deal found 2/22$1,256
This Delta deal was found by Cheapflights users on 2/22. 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.
Sun 5/257:40 amSEA - SDU
2 stops21h 55mDelta
Sat 5/312:20 pmSDU - SEA
2 stops23h 46mDelta
Deal found 2/22$2,900

Find flights from Washington to Santos Dumont within your budget

Customize your flight search to find flights from Washington 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 23, 2025.

Fly from

Washington

Fly to

Santos Dumont

Route

Depart

Return

Price

PortlandRio de Janeiro

PDX - SDU

PDXSDU

Portland

Wed 4/9

7:01 pm-10:40 am

3 stops35h 39m

Rio de Janeiro Santos Dumont

Wed 4/16

6:15 am-8:22 am

3 stops30h 07m

$853

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Fri 5/23

7:20 am-3:50 pm

2 stops28h 30m

Rio de Janeiro Santos Dumont

Sat 5/31

7:50 am-7:37 pm

2 stops39h 47m

$957

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Tue 4/8

10:20 am-10:40 am

2 stops20h 20m

Rio de Janeiro Santos Dumont

Tue 4/15

7:55 am-11:35 am

3 stops31h 40m

$962

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Fri 3/14

11:25 pm-11:20 am

2 stops31h 55m

Rio de Janeiro Santos Dumont

Thu 3/27

1:00 pm-11:49 am

2 stops26h 49m

$1,005

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Fri 4/25

7:18 am-9:35 am

2 stops22h 17m

Rio de Janeiro Santos Dumont

Sat 5/3

9:35 am-2:45 pm

2 stops33h 10m

$1,212

PortlandRio de Janeiro

PDX - SDU

PDXSDU

Portland

Sat 3/15

11:58 pm-3:50 pm

2 stops35h 52m

Rio de Janeiro Santos Dumont

Sat 3/22

1:05 pm-10:39 pm

2 stops37h 34m

$1,237

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Thu 2/27

10:17 pm-4:55 pm

2 stops37h 38m

Rio de Janeiro Santos Dumont

Sun 3/9

8:30 pm-11:26 pm

2 stops30h 56m

$1,280

PortlandRio de Janeiro

PDX - SDU

PDXSDU

Portland

Sat 4/26

12:35 pm-9:45 pm

2 stops29h 10m

Rio de Janeiro Santos Dumont

Sun 5/11

11:00 am-1:25 pm

2 stops30h 25m

$1,445

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Sat 4/26

6:00 am-1:35 pm

2 stops27h 35m

Rio de Janeiro Santos Dumont

Sat 5/10

8:20 pm-12:20 pm

2 stops20h 00m

$9,869

SeattleRio de Janeiro

SEA - SDU

SEASDU

Seattle/Tacoma Intl

Sun 3/23

9:15 pm-8:30 am

3 stops55h 15m

$347

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

Showing 1-10 of 12 results
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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.

Travel insights for flights from Washington to Santos Dumont

Get recent, data-driven insights about flights from Washington 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 23, 2025.
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
8,191 reviews

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

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
8,191 reviews
Delta
8.0
Very good
8,191 reviews

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

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
1,784 reviews
Delta
8.0
Very good
8,191 reviews

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

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
8,746 reviews
Delta
8.0
Very good
8,191 reviews

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

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
1,065 reviews
Delta
8.0
Very good
8,191 reviews

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

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
8,766 reviews
Delta
8.0
Very good
8,191 reviews

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

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 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.

  • 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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Alternative routes for Washington to Santos Dumont

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