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Porto Alegre

$426+ 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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — POA
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap 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 September 17, 2025.

Round-trip from

$560
(Copa Airlines)

One-way from

$426
(123 Milhas)

Popular in

December

Cheapest in

October

Average price

$586
From Washington, D.C. (WAS) to Porto Alegre Salgado Filho
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One-way flight from Washington, D.C. (WAS) to Porto Alegre Salgado Filho
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Highest demand for flights based on searches. 22% potential increase in price ($211 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 17, 2025.

This Copa Airlines deal was found by Cheapflights users on 9/15. 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 9/152:25 amIAD - POA
1 stop20h 55mCopa Airlines
Mon 9/221:25 amPOA - IAD
1 stop24h 05mCopa Airlines
Deal found 9/15$466
This Copa Airlines deal was found by Cheapflights users on 9/15. 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 9/229:35 amIAD - POA
1 stop13h 45mCopa Airlines
Sat 9/271:25 amPOA - IAD
1 stop14h 40mCopa Airlines
Deal found 9/15$506
This Copa Airlines deal was found by Cheapflights users on 9/16. 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.
Thu 10/99:34 amIAD - POA
1 stop13h 46mCopa Airlines
Wed 10/291:30 amPOA - IAD
1 stop14h 35mCopa Airlines
Deal found 9/16$560
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Mon 10/2711:30 pmIAD - POA
1 stop13h 35mUnited Airlines
Mon 11/103:25 pmPOA - IAD
1 stop17h 10mUnited Airlines
Deal found 9/16$581
This Copa Airlines deal was found by Cheapflights users on 9/15. 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.
Sun 10/262:25 amIAD - POA
1 stop20h 55mCopa Airlines
Sun 11/91:35 amPOA - IAD
1 stop14h 27mCopa Airlines
Deal found 9/15$584
This United Airlines deal was found by Cheapflights users on 9/15. 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 9/1610:35 pmIAD - POA
1 stop15h 00mUnited Airlines
Tue 9/235:10 pmPOA - IAD
1 stop14h 15mUnited Airlines
Deal found 9/15$602
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/304:41 pmIAD - POA
1 stop30h 39mCopa Airlines
Wed 11/51:35 amPOA - IAD
1 stop23h 58mCopa Airlines
Deal found 9/15$631

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 September 17, 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

Thu 10/9

9:34 am-12:20 am

1 stop13h 46m

Porto Alegre Salgado Filho

Wed 10/29

1:30 am-3:05 pm

1 stop14h 35m

$560

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Mon 10/27

11:30 pm-2:05 pm

1 stop13h 35m

Porto Alegre Salgado Filho

Mon 11/10

3:25 pm-6:35 am

1 stop17h 10m

$581

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Sun 10/26

2:25 am-12:20 am

1 stop20h 55m

Porto Alegre Salgado Filho

Sun 11/9

1:35 am-2:02 pm

1 stop14h 27m

$584

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Tue 3/10

1:05 pm-2:35 pm

2 stops24h 30m

Porto Alegre Salgado Filho

Tue 3/17

5:10 pm-11:43 am

2 stops19h 33m

$617

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Wed 10/29

2:25 am-12:20 am

1 stop20h 55m

Porto Alegre Salgado Filho

Wed 11/5

1:35 am-11:33 pm

1 stop23h 58m

$676

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Thu 10/30

6:30 am-4:20 pm

2 stops32h 50m

Porto Alegre Salgado Filho

Thu 11/6

3:25 pm-6:35 am

1 stop17h 10m

$702

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Thu 10/9

8:30 am-4:10 pm

2 stops30h 40m

Porto Alegre Salgado Filho

Thu 10/30

3:25 pm-11:49 am

2 stops21h 24m

$713

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Sat 1/10

12:30 pm-6:45 pm

2 stops28h 15m

$426

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Tue 1/6

5:25 pm-6:45 pm

2 stops23h 20m

$516

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

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 12 results
1
2

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 September 17, 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 14% 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 September 17, 2025.
Get a feel of what it's like to fly with Copa 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
1,531 reviews

Comfort

7.4

Entertainment

6.8

Overall

7.6

Boarding

7.8

Food

6.8

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Juan Pablo,Sep 2025

MEX - PTY

never better, had a very plesent trip to panama, cant say the same thing of my trip, from panama to santa cruz... it was very poor, unconftrable and boring
Copa Airlines
7.6
Good
1,531 reviews
Copa Airlines
7.6
Good
1,531 reviews

Comfort

7.4

Entertainment

6.8

Overall

7.6

Boarding

7.8

Food

6.8

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Juan Pablo,Sep 2025

MEX - PTY

never better, had a very plesent trip to panama, cant say the same thing of my trip, from panama to santa cruz... it was very poor, unconftrable and boring

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?

    Copa Airlines and United Airlines can get you from Washington, D.C. to Porto Alegre in just under 13h 35m. Your travel time can differ by up to 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 42% 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$428Average$485FlexibilityNo cancel feeOn-time70%
LATAM AirlinesCheapest$798Average$811FlexibilityNo cancel feeOn-time81%

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