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$320+ Cheap flights from Porto Alegre (POA) to Washington, D.C. (WAS)

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 12/24. Fares are subject to change and may not be available on all flights or dates of travel.
POA — WAS
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Porto Alegre to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Porto Alegre (POA) to Washington, D.C. (WAS). 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 September 16, 2025.

Round-trip from

$655
(Copa Airlines)

One-way from

$320
(United Airlines)

Popular in

April

Cheapest in

August

Average price

$674
From Porto Alegre Salgado Filho to Washington, D.C. (WAS)
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One-way flight from Porto Alegre Salgado Filho to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 7% potential increase in price ($60 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Porto Alegre to Washington, D.C.

Cheapest flights from Porto Alegre to Washington, D.C.
Explore the most affordable flight options available from Porto Alegre to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Copa Airlines deal was found by Cheapflights users on 9/15. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/211:25 amPOA - IAD
1 stop24h 05mCopa Airlines
Sun 10/192:25 amIAD - POA
1 stop20h 55mCopa Airlines
Deal found 9/15$596
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Mon 9/223:25 pmPOA - IAD
1 stop16h 00mUnited Airlines
Mon 10/206:50 pmIAD - POA
2 stops18h 45mUnited Airlines
Deal found 9/15$644
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Mon 9/223:25 pmPOA - DCA
2 stops21h 11mUnited Airlines
Mon 10/205:00 pmDCA - POA
2 stops20h 35mUnited Airlines
Deal found 9/16$646
This Copa Airlines deal was found by Cheapflights users on 9/14. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/201:25 amPOA - IAD
1 stop14h 40mCopa Airlines
Fri 10/319:34 amIAD - POA
1 stop13h 46mCopa Airlines
Deal found 9/14$782
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Tue 10/213:25 pmPOA - DCA
2 stops22h 34mUnited Airlines
Fri 10/311:00 pmDCA - POA
2 stops24h 35mUnited Airlines
Deal found 9/16$788
This 123 Milhas deal was found by Cheapflights users on 9/15. 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 123 Milhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/216:00 amPOA - IAD
2 stops24h 35mMultiple Airlines
Fri 10/316:45 amIAD - POA
2 stops27h 50mMultiple Airlines
Deal found 9/15$834
This 123 Milhas deal was found by Cheapflights users on 9/15. 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 123 Milhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/197:20 amPOA - DCA
2 stops27h 46mLATAM Airlines
Sat 11/14:03 pmDCA - POA
2 stops23h 57mLATAM Airlines
Deal found 9/15$868
This 123 Milhas deal was found by Cheapflights users on 9/16. 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 123 Milhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/213:50 pmPOA - BWI
2 stops18h 23mLATAM Airlines
Fri 10/3110:18 amBWI - POA
2 stops19h 12mLATAM Airlines
Deal found 9/16$869
This 123 Milhas deal was found by Cheapflights users on 9/16. 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 123 Milhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/47:20 amPOA - DCA
2 stops26h 49mLATAM Airlines
Sat 10/186:20 pmDCA - POA
2 stops18h 30mLATAM Airlines
Deal found 9/16$869
This 123 Milhas deal was found by Cheapflights users on 9/14. 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 123 Milhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/47:20 amPOA - BWI
2 stops18h 08mLATAM Airlines
Sat 10/187:05 amBWI - POA
2 stops22h 20mLATAM Airlines
Deal found 9/14$873
This 123 Milhas deal was found by Cheapflights users on 9/14. 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 123 Milhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/227:20 amPOA - BWI
2 stops18h 08mLATAM Airlines
Mon 10/206:18 amBWI - POA
2 stops17h 32mLATAM Airlines
Deal found 9/14$934
This Delta deal was found by Cheapflights users on 9/15. 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.
Sat 10/46:55 amPOA - BWI
2 stops18h 33mDelta
Sat 10/187:05 amBWI - POA
2 stops22h 20mDelta
Deal found 9/15$949

Cheapflights Fare Finder

 
Customize your flight search to find flights from Porto Alegre to Washington, D.C. 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 September 16, 2025.
Use the filters below to find and compare flights from Porto Alegre to Washington, D.C. that are best for you.

Fly from

Porto Alegre

Fly to

Washington, D.C.

Route

Depart

Return

Price

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Wed 3/4

1:30 am-11:32 pm

1 stop24h 02m

Washington, D.C. Dulles Intl

Thu 3/19

2:18 am-12:25 am

1 stop21h 07m

$655

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Thu 3/5

8:50 pm-1:15 pm

2 stops18h 25m

Washington, D.C. Dulles Intl

Fri 3/20

12:30 pm-11:35 am

2 stops22h 05m

$760

Porto AlegreWashington, D.C.

POA - DCA

POADCA

Porto Alegre Salgado Filho

Tue 10/21

3:25 pm-12:59 pm

2 stops22h 34m

Washington, D.C. Reagan-National

Fri 10/31

1:00 pm-2:35 pm

2 stops24h 35m

$788

Porto AlegreWashington, D.C.

POA - DCA

POADCA

Porto Alegre Salgado Filho

Thu 3/5

5:55 pm-9:28 am

2 stops17h 33m

Washington, D.C. Reagan-National

Fri 3/20

12:37 pm-10:35 am

2 stops20h 58m

$799

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Thu 3/5

3:25 pm-6:35 am

1 stop17h 10m

Washington, D.C. Dulles Intl

Fri 3/20

11:30 pm-4:10 pm

1 stop15h 40m

$820

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Wed 2/4

1:30 am-11:32 pm

1 stop24h 02m

Washington, D.C. Dulles Intl

Mon 2/9

3:34 pm-12:25 am

1 stop30h 51m

$826

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Sun 10/19

2:35 pm-11:57 am

2 stops22h 22m

Washington, D.C. Dulles Intl

Sat 11/1

5:52 pm-5:00 pm

2 stops22h 08m

$867

Porto AlegreWashington, D.C.

POA - DCA

POADCA

Porto Alegre Salgado Filho

Sun 10/19

7:20 am-10:06 am

2 stops27h 46m

Washington, D.C. Reagan-National

Sat 11/1

4:03 pm-5:00 pm

2 stops23h 57m

$868

Porto AlegreBaltimore

POA - BWI

POABWI

Porto Alegre Salgado Filho

Tue 10/21

3:50 pm-9:13 am

2 stops18h 23m

Baltimore/Washington

Fri 10/31

10:18 am-6:30 am

2 stops19h 12m

$869

Porto AlegreWashington, D.C.

POA - DCA

POADCA

Porto Alegre Salgado Filho

Sat 10/4

7:20 am-9:09 am

2 stops26h 49m

Washington, D.C. Reagan-National

Sat 10/18

6:20 pm-1:50 pm

2 stops18h 30m

$869

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 29 results
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Best time to book a flight from Porto Alegre to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Porto Alegre 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 Porto Alegre to Washington, D.C.

What is the cheapest month to book a flight from Porto Alegre to Washington, D.C.?

Currently, August is the cheapest month in which you can book a flight from Porto Alegre to Washington, D.C. (average of $292). Flying from Porto Alegre to Washington, D.C. in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from POA to WAS?

Find hourly flight availability from Porto Alegre to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

It’s typically best to fly out from Porto Alegre to Washington, D.C. at noon. Doing so could potentially save you 6% on the flight price compared to flying in the morning, which is usually more expensive.

Related info for your journey

Find useful and relevant information for your journey from Porto Alegre to Washington, D.C.. 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 Porto Alegre to Washington, D.C.?

    Most people fly from Porto Alegre Salgado Filho (POA) if they book a flight from Porto Alegre to Washington, D.C.. On average, Salgado Filho has 0 outbound flights to Washington, D.C. per day from 0 airlines. Porto Alegre Salgado Filho is conveniently located just 4.0 mi from Porto Alegre’s city center.

  • How long is the flight from Porto Alegre to Washington, D.C.?

    For as low as $799, Copa Airlines can have you in Washington, D.C. from Porto Alegre in 17h 33m. There are 5036 mi between Porto Alegre and Washington, D.C.. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Porto Alegre to Washington, D.C. one-way?

    $320 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 Copa Airlines, with prices starting from $497 and $636, respectively.

  • What are the most popular routes from Porto Alegre to Washington, D.C.?

    While some choose either Porto Alegre Salgado Filho - Washington, D.C. Reagan-National or Porto Alegre Salgado Filho - Baltimore/Washington, Porto Alegre Salgado Filho - Washington, D.C. Dulles Intl is the most popular route from Porto Alegre to Washington, D.C..

  • Can I find deals for flights from Porto Alegre to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Porto Alegre to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Porto Alegre to Washington, D.C.?

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

  • Can I find deals for business class flights from Porto Alegre to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Porto Alegre to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Porto Alegre to Washington, D.C.?

    Currently, August is the cheapest month in which you can book a flight from Porto Alegre to Washington, D.C. (average of $292). Flying from Porto Alegre to Washington, D.C. in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Dundalk

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Alternative routes for Porto Alegre to Washington, D.C.

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