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Dulles Intl

$300+ Cheap flights from Porto Alegre (POA) to Dulles Intl (IAD)

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
POA — IAD
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Porto Alegre to Dulles Intl

Cheapest flights from Porto Alegre to Dulles Intl
Explore the most affordable flight options available from Porto Alegre to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Copa Airlines deal was found by Cheapflights users on 1/26. 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.
Wed 2/251:30 am
POA
-
IAD
1 stop14h 30m
Copa Airlines
Sat 3/71:18 am
IAD
-
POA
1 stop21h 07m
Copa Airlines
Deal found 1/26$599
This Mytrip deal was found by Cheapflights users on 1/27. 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.
Thu 3/1210:45 am
POA
-
IAD
3 stops30h 10m
Multiple Airlines
Tue 3/242:18 am
IAD
-
POA
1 stop21h 07m
Multiple Airlines
Deal found 1/27$606
This United Airlines deal was found by Cheapflights users on 1/27. 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.
Thu 3/122:05 pm
POA
-
IAD
1 stop17h 35m
United Airlines
Wed 3/2511:30 pm
IAD
-
POA
1 stop14h 20m
United Airlines
Deal found 1/27$608
This United Airlines deal was found by Cheapflights users on 1/27. 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.
Wed 3/183:25 pm
POA
-
IAD
2 stops33h 34m
United Airlines
Sun 3/2210:31 pm
IAD
-
POA
2 stops38h 39m
United Airlines
Deal found 1/27$610
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Thu 2/263:45 pm
POA
-
IAD
2 stops22h 04m
United Airlines
Sun 3/811:30 pm
IAD
-
POA
1 stop15h 55m
United Airlines
Deal found 1/26$611
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Thu 3/123:30 pm
POA
-
IAD
1 stop16h 10m
United Airlines
Mon 3/1611:30 pm
IAD
-
POA
1 stop13h 40m
United Airlines
Deal found 1/28$625
This GOL deal was found by Cheapflights users on 1/28. 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 GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:40 pm
POA
-
IAD
2 stops19h 20m
GOL
Mon 5/257:00 am
IAD
-
POA
2 stops26h 40m
GOL
Deal found 1/28$730
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Sun 5/1711:15 am
POA
-
IAD
1 stop20h 10m
United Airlines
Tue 5/2610:30 pm
IAD
-
POA
1 stop16h 50m
United Airlines
Deal found 1/28$747
This United Airlines deal was found by Cheapflights users on 1/28. 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 5/183:25 pm
POA
-
IAD
2 stops33h 53m
United Airlines
Tue 5/2610:30 pm
IAD
-
POA
1 stop14h 50m
United Airlines
Deal found 1/28$752

Find flight deals from Porto Alegre to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Porto Alegre (POA) to Dulles Intl (IAD). 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$599
(Copa Airlines)

One-way from

$300
(Trip.com)

Popular in

July

Cheapest in

June

Average price

$771
Provider with most accurate pricing for Porto Alegre Salgado Filho-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Porto Alegre Salgado Filho-Washington, D.C. Dulles Intl flights.
Search Deals
From Porto Alegre Salgado Filho to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Porto Alegre Salgado Filho to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($50 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Porto Alegre to Dulles Intl 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 January 29, 2026.
Use the filters below to find and compare flights from Porto Alegre to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Porto Alegre

Fly to

Dulles Intl

Route

Depart

Return

Price

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Wed 2/25

1:30 am-2:00 pm

1 stop14h 30m

Washington, D.C. Dulles Intl

Sat 3/7

1:18 am-12:25 am

1 stop21h 07m

$599

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Thu 3/12

2:05 pm-6:40 am

1 stop17h 35m

Washington, D.C. Dulles Intl

Wed 3/25

11:30 pm-2:50 pm

1 stop14h 20m

$608

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Wed 3/18

5:10 pm-6:40 am

1 stop14h 30m

Washington, D.C. Dulles Intl

Sun 3/22

10:31 pm-2:10 pm

2 stops38h 39m

$610

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Thu 2/26

3:45 pm-11:49 am

2 stops22h 04m

Washington, D.C. Dulles Intl

Sun 3/8

11:30 pm-4:25 pm

1 stop15h 55m

$611

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Thu 3/12

3:30 pm-6:40 am

1 stop16h 10m

Washington, D.C. Dulles Intl

Mon 3/16

11:30 pm-2:10 pm

1 stop13h 40m

$625

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Thu 3/12

10:45 am-3:55 pm

3 stops30h 10m

Washington, D.C. Dulles Intl

Wed 3/25

6:45 am-9:05 am

2 stops25h 20m

$697

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Tue 5/19

5:10 pm-6:25 am

1 stop14h 15m

Washington, D.C. Dulles Intl

Tue 5/26

10:30 pm-9:45 am

1 stop34h 15m

$747

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Mon 5/18

3:25 pm-12:18 am

2 stops33h 53m

Washington, D.C. Dulles Intl

Tue 5/26

10:30 pm-2:20 pm

1 stop14h 50m

$752

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Thu 3/5

10:45 am-4:25 am

2 stops19h 40m

$300

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Wed 2/18

1:30 am-2:00 pm

1 stop14h 30m

$314

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 18 results
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  • Most accurate provider: When it comes to deals on Porto Alegre-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Porto Alegre-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Porto Alegre-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Porto Alegre-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Porto Alegre-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Porto Alegre to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl 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.

Related info for your journey

Find useful and relevant information for your journey from Porto Alegre to Dulles Intl. 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. Dulles Intl?

    If you book a flight to Washington, D.C. Dulles Intl from Porto Alegre, you will be flying from Salgado Filho, which is the city’s only airport. Porto Alegre Salgado Filho (POA) is located 4.0 mi from the center of Porto Alegre. There are 0 flights from Salgado Filho to Washington, D.C. Dulles Intl per day from 0 different airlines.

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

    There are many flights that can get you from Porto Alegre to Washington, D.C. Dulles Intl Airport in 14h 30m. Fly via Copa Airlines or United Airlines to get the fastest option. The distance from Porto Alegre to Washington, D.C. Dulles Intl Airport is about 5051 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Porto Alegre to Dulles Intl that include hotel bookings?

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

  • How can I find direct flights from Porto Alegre to Dulles Intl?

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

  • Can I find deals for business class flights from Porto Alegre to Dulles Intl?

    Yes. Cheapflights offers flight deals from Porto Alegre to Dulles Intl 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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Linthicum Heights
Rockville
Laurel
Towson
Manassas
Largo
Bowie
McLean
Clinton
Upper Marlboro

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Alternative routes for Porto Alegre to Dulles Intl

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