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Porto Alegre

$524+ 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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — POA
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheap flight deals from Washington, D.C. to Porto Alegre

Best flights from Washington, D.C. to Porto Alegre
Discover carefully curated flight deals from Washington, D.C. to Porto Alegre that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

This LATAM Airlines deal was found by Cheapflights users on 12/21. 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.
Fri 2/2010:08 amIAD - POA
2 stops25h 07mLATAM Airlines
Sun 3/17:30 pmPOA - IAD
2 stops18h 14mLATAM Airlines
Deal found 12/21$684
This Copa Airlines deal was found by Cheapflights users on 12/21. 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 2/208:29 amIAD - POA
1 stop13h 56mCopa Airlines
Sat 2/281:30 amPOA - IAD
1 stop24h 02mCopa Airlines
Deal found 12/21$880
This United Airlines deal was found by Cheapflights users on 12/21. 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 1/201:05 pmIAD - POA
2 stops19h 35mUnited Airlines
Tue 1/271:55 pmPOA - IAD
1 stop18h 40mUnited Airlines
Deal found 12/21$889
This Orbitz deal was found by Cheapflights users on 12/22. 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.
Fri 1/210:57 amIAD - POA
2 stops17h 33mMultiple Airlines
Sun 1/1810:25 amPOA - IAD
2 stops32h 06mMultiple Airlines
Deal found 12/22$949
This FlightHub deal was found by Cheapflights users on 12/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/45:25 pmIAD - POA
2 stops46h 35mLATAM Airlines
Sat 6/66:40 amPOA - IAD
2 stops37h 36mLATAM Airlines
Deal found 12/22$790
This Cheapflightsfares deal was found by Cheapflights users on 12/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/203:42 pmIAD - POA
2 stops23h 38mLATAM Airlines
Tue 1/2712:30 pmPOA - IAD
2 stops22h 43mLATAM Airlines
Deal found 12/21$828
This KAYAK deal was found by Cheapflights users on 12/21. 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.
Tue 1/208:25 amIAD - POA
1 stop14h 05mCopa Airlines
Mon 1/261:45 amPOA - IAD
1 stop23h 45mCopa Airlines
Deal found 12/21$1,080
This KAYAK deal was found by Cheapflights users on 12/21. 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.
Sun 1/185:59 pmIAD - POA
2 stops18h 06mLATAM Airlines
Wed 1/217:30 pmPOA - IAD
2 stops18h 13mLATAM Airlines
Deal found 12/21$904

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 December 23, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$684
(LATAM Airlines)

One-way from

$524
(Copa Airlines)

Popular in

December

Cheapest in

September

Average price

$1,297
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. 18% potential increase in price ($160 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($52 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 23, 2025.
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

Fri 2/20

10:08 am-1:15 pm

2 stops25h 07m

Porto Alegre Salgado Filho

Sun 3/1

7:30 pm-11:44 am

2 stops18h 14m

$684

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Sat 4/4

5:25 pm-5:00 pm

2 stops46h 35m

Porto Alegre Salgado Filho

Sat 6/6

6:40 am-7:16 pm

2 stops37h 36m

$790

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Tue 1/20

3:42 pm-5:20 pm

2 stops23h 38m

Porto Alegre Salgado Filho

Tue 1/27

12:30 pm-9:13 am

2 stops22h 43m

$828

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Fri 2/20

8:29 am-12:25 am

1 stop13h 56m

Porto Alegre Salgado Filho

Sat 2/28

1:30 am-11:32 pm

1 stop24h 02m

$880

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Tue 1/20

1:05 pm-10:40 am

2 stops19h 35m

Porto Alegre Salgado Filho

Tue 1/27

1:55 pm-6:35 am

1 stop18h 40m

$889

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Sun 1/18

5:59 pm-2:05 pm

2 stops18h 06m

Porto Alegre Salgado Filho

Wed 1/21

7:30 pm-11:43 am

2 stops18h 13m

$904

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Fri 1/2

10:57 am-6:30 am

2 stops17h 33m

Porto Alegre Salgado Filho

Sun 1/18

10:25 am-4:31 pm

2 stops32h 06m

$949

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Tue 1/20

8:25 am-12:30 am

1 stop14h 05m

Porto Alegre Salgado Filho

Mon 1/26

1:45 am-11:30 pm

1 stop23h 45m

$1,080

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Fri 1/9

1:12 am-12:30 am

1 stop21h 18m

$524

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Tue 1/6

8:25 am-12:30 am

1 stop14h 05m

$524

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 13 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 December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C.-Porto Alegre flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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

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

Find hourly flight availability from Washington, D.C. 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 December 23, 2025.

One of the essential ways to save on airfare from Washington, D.C. to Porto Alegre is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 31% on airfare.

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 December 23, 2025.
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
7.6
Good
1,557 reviews

Overall

7.6

Boarding

7.8

Comfort

7.4

Crew

8.1

Entertainment

6.8

Food

6.8

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
7.6
Good
1,557 reviews
Copa Airlines
7.6
Good
1,557 reviews

Overall

7.6

Boarding

7.8

Comfort

7.4

Crew

8.1

Entertainment

6.8

Food

6.8

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
9,106 reviews
Copa Airlines
7.6
Good
1,557 reviews

Overall

7.6

Boarding

7.8

Comfort

7.4

Crew

8.1

Entertainment

6.8

Food

6.8

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 2 airlines. 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?

    LATAM Airlines and Copa Airlines can get you from Washington, D.C. to Porto Alegre in just under 13h 56m. Your travel time can differ by up to 11h 11m. 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 40% 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 2 airlines flying from Washington, D.C. to Porto Alegre

Discover the top 2 airlines 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 December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$428Average$524FlexibilityNo cancel feeOn-time70%
LATAM AirlinesCheapest$798Average$809FlexibilityNo cancel feeOn-time81%

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