HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Porto Alegre

$267+ Cheap flights from Dulles Intl (IAD) to Porto Alegre (POA)

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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — POA
abr. 21 — abr. 281
lun. 4/21
lun. 4/28
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Porto Alegre with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Dulles Intl to Porto Alegre

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Porto Alegre (POA). 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 abril 16, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$409
(United Airlines)

One-way from

$267
(Kiwi.com)
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Porto Alegre Salgado Filho flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Porto Alegre Salgado Filho flights.
Search Deals
From Washington, D.C. Dulles Intl to Porto Alegre Salgado Filho
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Porto Alegre Salgado Filho
Search Deals

Find flight deals from Dulles Intl to Porto Alegre

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

This United deal was found by Cheapflights users on 4/16. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/310:35 pmIAD - POA
1 stop17h 15mMultiple Airlines
lun. 11/310:15 amPOA - IAD
1 stop22h 20mMultiple Airlines
Deal found 4/16$510
This Avianca deal was found by Cheapflights users on 4/16. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/33:25 pmIAD - POA
2 stops18h 00mAvianca
mié. 11/127:35 pmPOA - IAD
2 stops19h 25mAvianca
Deal found 4/16$606
This Copa Airlines deal was found by Cheapflights users on 4/16. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/262:18 amIAD - POA
1 stop21h 14mCopa Airlines
dom. 11/91:37 amPOA - IAD
1 stop23h 56mCopa Airlines
Deal found 4/16$630
This GOL deal was found by Cheapflights users on 4/16. 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 GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/273:20 pmIAD - POA
2 stops17h 25mGOL
lun. 11/105:10 amPOA - IAD
2 stops33h 50mGOL
Deal found 4/16$675
This United Airlines deal was found by Cheapflights users on 4/16. 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.
sáb. 5/3110:18 pmIAD - POA
2 stops38h 02mUnited Airlines
sáb. 6/72:00 pmPOA - IAD
1 stop17h 25mUnited Airlines
Deal found 4/16$790
This KAYAK deal was found by Cheapflights users on 4/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/36:00 pmIAD - POA
2 stops20h 55mLATAM Airlines
mar. 11/114:40 amPOA - IAD
2 stops21h 27mLATAM Airlines
Deal found 4/16$818
This American Airlines deal was found by Cheapflights users on 4/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/1210:52 amIAD - POA
3 stops21h 43mAmerican Airlines
mié. 12/36:35 pmPOA - IAD
2 stops23h 31mAmerican Airlines
Deal found 4/16$2,487

Cheapflights Fare Finder

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

Fly from

Dulles Intl

Fly to

Porto Alegre

Route

Depart

Return

Price

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

mar. 6/3

10:35 pm-4:50 pm

1 stop17h 15m

Porto Alegre Salgado Filho

lun. 11/3

10:15 am-6:35 am

1 stop22h 20m

$510

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

mar. 6/3

3:25 pm-10:25 am

2 stops18h 00m

Porto Alegre Salgado Filho

mié. 11/12

7:35 pm-1:00 pm

2 stops19h 25m

$606

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

lun. 6/2

2:21 am-12:15 am

1 stop20h 54m

Porto Alegre Salgado Filho

dom. 11/2

1:37 am-11:33 pm

1 stop23h 56m

$708

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

sáb. 5/31

10:18 pm-1:20 pm

2 stops38h 02m

Porto Alegre Salgado Filho

sáb. 6/7

2:00 pm-6:25 am

1 stop17h 25m

$790

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

mar. 6/3

6:00 pm-3:55 pm

2 stops20h 55m

Porto Alegre Salgado Filho

mar. 11/11

4:40 am-12:07 am

2 stops21h 27m

$818

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

lun. 6/16

11:50 am-1:25 pm

3 stops24h 35m

Porto Alegre Salgado Filho

dom. 6/22

6:35 pm-10:39 pm

2 stops29h 04m

$2,989

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

mié. 6/4

3:25 pm-7:40 am

2 stops39h 15m

$267

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

mié. 6/4

3:25 pm-4:15 pm

3 stops23h 50m

$283

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

mié. 6/4

10:35 pm-4:50 pm

1 stop17h 15m

$463

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

mié. 6/4

2:21 am-12:15 am

1 stop20h 54m

$548

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

Compare providers for flights from Dulles Intl to Porto Alegre

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Porto Alegre in April.
ProviderPrice AccuracyTrust Score*
CheapfaremartPrice Accuracy-Trust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Porto Alegre flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Washington, D.C. Dulles Intl Airport-Porto Alegre flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Porto Alegre flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Porto Alegre flights, Cheapflights users trust AranGrant the most. AranGrant 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 Washington, D.C. Dulles Intl Airport-Porto Alegre 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 Dulles Intl to Porto Alegre

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

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

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

It’s optimal to fly from Washington, D.C. Dulles Intl Airport to Porto Alegre in the afternoon. By choosing this option you can save up to 14% on the cost of your flight, compared to a flight at noon.

Rainfall in Porto Alegre by month

Plan your trip to Porto Alegre by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Porto Alegre ranges from 2.8 - 5.1 inches per month. September is typically the wettest month, when rainfall can reach 5.1 in. November is typically the driest time to visit Porto Alegre when rainfall is around 2.8 in.

Temperature in Porto Alegre by month

Plan your trip to Porto Alegre by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Porto Alegre, 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 77.0 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 55.4 F).

Reviews of airlines servicing Porto Alegre

Get insights into the airlines that provide service to Porto Alegre. 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 Porto Alegre. Reviews last updated abril 16, 2025.
Copa Airlines
7.6
Good
1,408 reviews

Comfort

7.4

Food

6.8

Boarding

7.8

Entertainment

6.8

Crew

8.1

Overall

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LIM - PTY

you go security buy an expensive bottle of water to take on the plane and then you have to go to another security point where they confiscate your water, the planes left on time and arrived on time. excellent food was mostly tasteless and overheated, no entertainment. wifi was glitchy.
Copa Airlines
7.6
Good
1,408 reviews
Copa Airlines
7.6
Good
1,408 reviews

Comfort

7.4

Food

6.8

Boarding

7.8

Entertainment

6.8

Crew

8.1

Overall

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LIM - PTY

you go security buy an expensive bottle of water to take on the plane and then you have to go to another security point where they confiscate your water, the planes left on time and arrived on time. excellent food was mostly tasteless and overheated, no entertainment. wifi was glitchy.
LATAM Airlines
7.5
Good
1,761 reviews
Copa Airlines
7.6
Good
1,408 reviews

Comfort

7.4

Food

6.8

Boarding

7.8

Entertainment

6.8

Crew

8.1

Overall

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LIM - PTY

you go security buy an expensive bottle of water to take on the plane and then you have to go to another security point where they confiscate your water, the planes left on time and arrived on time. excellent food was mostly tasteless and overheated, no entertainment. wifi was glitchy.
United Airlines
7.4
Good
8,665 reviews
Copa Airlines
7.6
Good
1,408 reviews

Comfort

7.4

Food

6.8

Boarding

7.8

Entertainment

6.8

Crew

8.1

Overall

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LIM - PTY

you go security buy an expensive bottle of water to take on the plane and then you have to go to another security point where they confiscate your water, the planes left on time and arrived on time. excellent food was mostly tasteless and overheated, no entertainment. wifi was glitchy.
GOL
7.3
Good
1,057 reviews
Copa Airlines
7.6
Good
1,408 reviews

Comfort

7.4

Food

6.8

Boarding

7.8

Entertainment

6.8

Crew

8.1

Overall

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LIM - PTY

you go security buy an expensive bottle of water to take on the plane and then you have to go to another security point where they confiscate your water, the planes left on time and arrived on time. excellent food was mostly tasteless and overheated, no entertainment. wifi was glitchy.
American Airlines
7.2
Good
10,000 reviews
Copa Airlines
7.6
Good
1,408 reviews

Comfort

7.4

Food

6.8

Boarding

7.8

Entertainment

6.8

Crew

8.1

Overall

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LIM - PTY

you go security buy an expensive bottle of water to take on the plane and then you have to go to another security point where they confiscate your water, the planes left on time and arrived on time. excellent food was mostly tasteless and overheated, no entertainment. wifi was glitchy.

Related info for your journey

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

    Most people fly into Porto Alegre Salgado Filho (POA) if they book a flight to Porto Alegre from Washington, D.C. Dulles Intl. On average, Salgado Filho has 0 inbound flights from Washington, D.C. Dulles Intl per day from 1 airline. Porto Alegre Salgado Filho is conveniently located just 4.0 mi from Porto Alegre’s city center.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Porto Alegre round-trip?

    Flying on United Airlines is currently your cheapest option to Porto Alegre, with prices starting at $425. Additional round-trip tickets that might be worth considering are offered by Avianca and Copa Airlines, with the lowest prices starting at $606 and $708, respectively.

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

    To fly one-way, consider booking your trip with GOL, which is currently one of the cheapest options available, starting at $283. United Airlines flights start at $463 while deals on Copa Airlines start at $548 one-way.

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

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

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

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

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

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

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 Dulles Intl to Porto Alegre

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Santa Maria flights

Top airline flying from Dulles Intl to Porto Alegre

Discover the top airline that operate flights from Dulles Intl to Porto Alegre. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated abril 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$710Average$838FlexibilityNo cancel feeOn-time70%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.