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Dulles Intl

$318+ 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 11/16. Fares are subject to change and may not be available on all flights or dates of travel.
POA — IAD
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Find 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 October 28, 2025.

This Copa Airlines deal was found by Cheapflights users on 10/27. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/51:35 amPOA - IAD
1 stop23h 58mCopa Airlines
Sun 3/18:29 amIAD - POA
1 stop13h 56mCopa Airlines
Deal found 10/27$798
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Sat 12/62:10 pmPOA - IAD
1 stop18h 25mUnited Airlines
Sun 3/110:30 pmIAD - POA
1 stop15h 40mUnited Airlines
Deal found 10/27$814
This 123 Milhas deal was found by Cheapflights users on 10/27. 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 123 Milhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:00 pmPOA - IAD
2 stops22h 40mLATAM Airlines
Sun 3/14:00 pmIAD - POA
2 stops23h 00mLATAM Airlines
Deal found 10/27$891
This 123 Milhas deal was found by Cheapflights users on 10/28. 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 123 Milhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1811:40 amPOA - IAD
2 stops18h 45mMultiple Airlines
Mon 11/241:30 amIAD - POA
2 stops37h 00mMultiple Airlines
Deal found 10/28$912
This Copa Airlines deal was found by Cheapflights users on 10/28. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/171:35 amPOA - IAD
1 stop14h 27mCopa Airlines
Mon 11/241:13 amIAD - POA
1 stop21h 17mCopa Airlines
Deal found 10/28$921
This Orbitz deal was found by Cheapflights users on 10/26. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/187:45 amPOA - IAD
2 stops18h 27mLATAM Airlines
Sun 12/286:59 pmIAD - POA
2 stops17h 06mLATAM Airlines
Deal found 10/26$1,172
This LATAM Airlines deal was found by Cheapflights users on 10/28. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/232:05 pmPOA - IAD
2 stops21h 41mLATAM Airlines
Thu 1/14:17 pmIAD - POA
2 stops22h 48mLATAM Airlines
Deal found 10/28$1,298
This Orbitz deal was found by Cheapflights users on 10/26. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/187:45 amPOA - IAD
2 stops18h 27mLATAM Airlines
Sat 12/276:59 pmIAD - POA
2 stops22h 21mLATAM Airlines
Deal found 10/26$1,328
This Copa Airlines deal was found by Cheapflights users on 10/28. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/221:35 amPOA - IAD
1 stop23h 58mCopa Airlines
Thu 1/15:25 amIAD - POA
1 stop17h 05mCopa Airlines
Deal found 10/28$1,459

Cheap 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 October 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$602
(United Airlines)

One-way from

$318
(United)

Popular in

December

Cheapest in

June

Average price

$754
Provider with most accurate pricing for Porto Alegre Salgado Filho-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Porto Alegre Salgado Filho-Washington, D.C. Dulles Intl flights.
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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. 5% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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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 October 28, 2025.
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

Thu 4/23

3:25 pm-6:25 am

1 stop16h 00m

Washington, D.C. Dulles Intl

Wed 4/29

4:10 pm-1:10 pm

2 stops20h 00m

$602

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Mon 3/2

1:30 am-11:32 pm

1 stop24h 02m

Washington, D.C. Dulles Intl

Fri 3/13

9:29 am-12:25 am

1 stop13h 56m

$675

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Wed 4/22

1:45 am-12:30 am

1 stop23h 45m

Washington, D.C. Dulles Intl

Tue 4/28

2:12 am-12:30 am

1 stop21h 18m

$778

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Sun 3/8

1:30 am-12:32 am

1 stop24h 02m

Washington, D.C. Dulles Intl

Thu 3/19

2:18 am-12:25 am

1 stop21h 07m

$778

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Fri 12/5

1:35 am-11:33 pm

1 stop23h 58m

Washington, D.C. Dulles Intl

Sun 3/1

8:29 am-12:25 am

1 stop13h 56m

$798

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Sun 4/5

1:45 am-12:30 am

1 stop23h 45m

Washington, D.C. Dulles Intl

Mon 4/13

2:12 am-12:30 am

1 stop21h 18m

$813

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Mon 3/9

5:55 pm-11:53 am

2 stops18h 58m

Washington, D.C. Dulles Intl

Fri 3/20

7:59 pm-5:05 pm

2 stops20h 06m

$819

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Mon 4/6

3:25 pm-7:04 pm

2 stops28h 39m

Washington, D.C. Dulles Intl

Tue 4/14

10:30 pm-2:35 pm

1 stop15h 05m

$820

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Mon 11/17

6:40 am-6:35 am

1 stop25h 55m

$318

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Tue 11/18

3:25 pm-11:59 pm

2 stops34h 34m

$319

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 17 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.

Cheapflights Insights

Everything you need to know about your flight from Porto Alegre to Washington, D.C. Dulles Intl Airport

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

Currently, May is the cheapest month in which you can book a flight from Porto Alegre to Washington, D.C. Dulles Intl Airport (average of $415). Flying from Porto Alegre to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $1,082). 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 IAD?

Find hourly flight availability from Porto Alegre to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 28, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 33% on flights from Porto Alegre to Washington, D.C. Dulles Intl Airport by exploring options for tickets in the morning.

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 16h. Fly via United Airlines or Copa 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.

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

    Currently, May is the cheapest month in which you can book a flight from Porto Alegre to Washington, D.C. Dulles Intl Airport (average of $415). Flying from Porto Alegre to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $1,082). 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

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
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Owings Mills
Linthicum Heights
Manassas
Largo
Oxon Hill
Laurel
Towson
National Harbor
Waldorf
Bowie

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