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Porto Alegre

$285+ Cheap flights from Washington, D.C. (WAS) 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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — POA
Mar 15 — Mar 221
Sun 3/15
Sun 3/22
1 adult, Economy
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Find cheap flights from Washington, D.C. to Porto Alegre with Cheapflights

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Cheap flight deals from Washington, D.C. to Porto Alegre

Cheapest flights from Washington, D.C. to Porto Alegre
Explore the most affordable flight options available from Washington, D.C. to Porto Alegre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 13, 2026.

This Copa Airlines deal was found by Cheapflights users on 2/10. 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 3/232:18 am
IAD
-
POA
1 stop21h 07m
Copa Airlines
Sat 3/281:25 am
POA
-
IAD
1 stop14h 37m
Copa Airlines
Deal found 2/10$530
This United Airlines deal was found by Cheapflights users on 2/12. 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 3/110:30 pm
IAD
-
POA
2 stops37h 40m
United Airlines
Wed 3/115:10 pm
POA
-
IAD
1 stop14h 30m
United Airlines
Deal found 2/12$568
This Mytrip deal was found by Cheapflights users on 2/11. 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 3/33:35 pm
IAD
-
POA
1 stop30h 50m
Multiple Airlines
Thu 3/128:45 pm
POA
-
IAD
2 stops28h 47m
Multiple Airlines
Deal found 2/11$598
This Trip.com deal was found by Cheapflights users on 2/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/33:35 pm
IAD
-
POA
1 stop30h 50m
Multiple Airlines
Mon 3/167:20 pm
POA
-
IAD
2 stops43h 55m
Multiple Airlines
Deal found 2/11$617
This Mytrip deal was found by Cheapflights users on 2/11. 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.
Mon 3/21:18 am
IAD
-
POA
1 stop21h 07m
Multiple Airlines
Tue 3/179:05 pm
POA
-
IAD
2 stops18h 10m
Multiple Airlines
Deal found 2/11$618
This United Airlines deal was found by Cheapflights users on 2/10. 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 3/1511:30 pm
IAD
-
POA
1 stop15h 55m
United Airlines
Thu 3/193:30 pm
POA
-
IAD
2 stops33h 29m
United Airlines
Deal found 2/10$623
This BusinessClass deal was found by Cheapflights users on 2/12. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/33:35 pm
IAD
-
POA
1 stop30h 50m
Copa Airlines
Tue 3/101:30 am
POA
-
IAD
1 stop27h 45m
Copa Airlines
Deal found 2/12$640
This Delta deal was found by Cheapflights users on 2/12. 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.
Wed 3/46:00 am
IAD
-
POA
2 stops22h 30m
Delta
Thu 3/127:45 am
POA
-
IAD
2 stops26h 25m
Delta
Deal found 2/12$672

Find flight deals from Washington, D.C. to Porto Alegre

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) 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 February 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$530
(Copa Airlines)

One-way from

$285
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$687
Provider with most accurate pricing for Washington, D.C. (WAS)-Porto Alegre Salgado Filho flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Porto Alegre Salgado Filho flights.
Search Deals
From Washington, D.C. (WAS) to Porto Alegre Salgado Filho
Search Deals
One-way flight from Washington, D.C. (WAS) to Porto Alegre Salgado Filho
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($244 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($55 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 February 13, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Porto Alegre that are best for you.

Fly from

Washington, D.C.

Fly to

Porto Alegre

Route

Depart

Return

Price

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Mon 3/23

2:18 am-12:25 am

1 stop21h 07m

Porto Alegre Salgado Filho

Sat 3/28

1:25 am-3:02 pm

1 stop14h 37m

$530

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Sun 3/1

10:30 pm-2:10 pm

2 stops37h 40m

Porto Alegre Salgado Filho

Wed 3/11

5:10 pm-6:40 am

1 stop14h 30m

$568

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Sun 3/1

10:30 pm-2:10 pm

2 stops37h 40m

Porto Alegre Salgado Filho

Thu 3/12

3:30 pm-6:40 am

1 stop16h 10m

$568

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Tue 3/3

3:35 pm-12:25 am

1 stop30h 50m

Porto Alegre Salgado Filho

Thu 3/12

8:45 pm-12:32 am

2 stops28h 47m

$598

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Tue 3/3

3:35 pm-12:25 am

1 stop30h 50m

Porto Alegre Salgado Filho

Mon 3/16

7:20 pm-2:15 pm

2 stops43h 55m

$617

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Mon 3/2

1:18 am-12:25 am

1 stop21h 07m

Porto Alegre Salgado Filho

Tue 3/17

9:05 pm-2:15 pm

2 stops18h 10m

$618

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Sun 3/15

11:30 pm-4:25 pm

1 stop15h 55m

Porto Alegre Salgado Filho

Thu 3/19

2:05 pm-11:59 pm

2 stops34h 54m

$623

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Wed 3/4

6:00 am-6:30 am

2 stops22h 30m

Porto Alegre Salgado Filho

Thu 3/12

7:45 am-9:10 am

2 stops26h 25m

$672

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Sun 3/1

8:29 am-12:40 am

2 stops38h 11m

$285

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Sun 6/7

5:25 pm-6:15 pm

2 stops23h 50m

$286

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Showing 1-10 of 15 results
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Compare providers for flights from Washington, D.C. 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 Washington, D.C. to Porto Alegre in February.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 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.-Porto Alegre flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-Porto Alegre flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Porto Alegre flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Porto Alegre 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 Washington, D.C.-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 Washington, D.C. to Porto Alegre

Have a flexible travel schedule? Discover the best time to fly to Porto Alegre from Washington, D.C. 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. to Porto Alegre
No data available for this route at this time. Please check back soon.

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 February 13, 2026.
Get a feel of what it's like to fly with Copa Airlines and United Airlines from Washington, D.C. to Porto Alegre by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Copa Airlines
7.5
Good
1,559 reviews

Boarding

7.8

Comfort

7.4

Entertainment

6.8

Food

6.8

Crew

8.1

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Maria,Dec 2025

PTY - SLA

Old plain no entertainment , no outlet for cell or computer! And online they said you have all that! Almost 6 hrs looking to the floor..terrible expirencw and I pay a lot of money for it
Copa Airlines
7.5
Good
1,559 reviews
Copa Airlines
7.5
Good
1,559 reviews

Boarding

7.8

Comfort

7.4

Entertainment

6.8

Food

6.8

Crew

8.1

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Maria,Dec 2025

PTY - SLA

Old plain no entertainment , no outlet for cell or computer! And online they said you have all that! Almost 6 hrs looking to the floor..terrible expirencw and I pay a lot of money for it
United Airlines
7.4
Good
9,285 reviews
Copa Airlines
7.5
Good
1,559 reviews

Boarding

7.8

Comfort

7.4

Entertainment

6.8

Food

6.8

Crew

8.1

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Maria,Dec 2025

PTY - SLA

Old plain no entertainment , no outlet for cell or computer! And online they said you have all that! Almost 6 hrs looking to the floor..terrible expirencw and I pay a lot of money for it

Related info for your journey

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

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

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

    Copa Airlines and United Airlines can get you from Washington, D.C. to Porto Alegre in just under 21h 07m. Your travel time can differ by up to 16h 33m. The distance between Washington, D.C. and Porto Alegre is about 5051 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Washington, D.C. to Porto Alegre round-trip?

    Copa Airlines, at $428, was found to be the cheapest airline from Washington, D.C. to Porto Alegre.. Users have found that Copa Airlines is 41% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington, D.C. 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

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

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

Top airline flying from Washington, D.C. to Porto Alegre

Discover the top airline that operate flights from Washington, D.C. 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 February 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$428Average$524FlexibilityNo cancel feeOn-time70%

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