HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Porto Alegre

$514+ Cheap flights from Washington to Porto Alegre (POA)

This is the cheapest round-trip 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.
SEA — POA
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington 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 Washington to Porto Alegre

Keep the following information in mind while searching for Washington to Porto Alegre flight deals. Data was last updated May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$514
(United Airlines)
Provider with most accurate pricing for Seattle/Tacoma Intl-Porto Alegre Salgado Filho flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Porto Alegre Salgado Filho flights.
Search Deals
From Washington to Porto Alegre Salgado Filho
Search Deals

Find flight deals from Washington to Porto Alegre

Cheapest flights from Washington to Porto Alegre
Explore the most affordable flight options available from Washington to Porto Alegre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This United Airlines deal was found by Cheapflights users on 4/29. 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.
Wed 6/48:00 amSEA - POA
2 stops30h 10mUnited Airlines
Mon 6/95:35 pmPOA - SEA
3 stops28h 50mUnited Airlines
Deal found 4/29$514
This Copa Airlines deal was found by Cheapflights users on 4/29. 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.
Wed 6/43:35 pmSEA - POA
2 stops28h 40mCopa Airlines
Sun 6/81:23 amPOA - SEA
2 stops24h 35mCopa Airlines
Deal found 4/29$729
This Gotogate deal was found by Cheapflights users on 4/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1110:00 amSEA - POA
3 stops26h 50mMultiple Airlines
Wed 6/252:00 pmPOA - SEA
2 stops34h 41mMultiple Airlines
Deal found 4/29$990

Cheapflights Fare Finder

Customize your flight search to find flights from Washington 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 May 1, 2025.
Use the filters below to find and compare flights from Washington to Porto Alegre that are best for you.

Fly from

Washington

Fly to

Porto Alegre

Route

Depart

Return

Price

SeattlePorto Alegre

SEA - POA

SEAPOA

Seattle/Tacoma Intl

Wed 6/4

12:55 pm-4:50 pm

2 stops23h 55m

Porto Alegre Salgado Filho

Mon 6/9

1:55 pm-6:53 pm

2 stops32h 58m

$514

SeattlePorto Alegre

SEA - POA

SEAPOA

Seattle/Tacoma Intl

Wed 6/4

3:35 pm-12:15 am

2 stops28h 40m

Porto Alegre Salgado Filho

Sun 6/8

1:23 am-9:58 pm

2 stops24h 35m

$729

SeattlePorto Alegre

SEA - POA

SEAPOA

Seattle/Tacoma Intl

Wed 6/11

10:00 am-4:50 pm

3 stops26h 50m

Porto Alegre Salgado Filho

Wed 6/25

2:00 pm-8:41 pm

2 stops34h 41m

$990

SeattlePorto Alegre

SEA - POA

SEAPOA

Seattle/Tacoma Intl

Sat 6/14

5:14 pm-12:15 am

2 stops27h 01m

$530

SeattlePorto Alegre

SEA - POA

SEAPOA

Seattle/Tacoma Intl

Sat 6/14

10:00 am-1:00 pm

3 stops23h 00m

$744

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Best time to book a flight from Washington to Porto Alegre

Have a flexible travel schedule? Discover the best time to fly to Porto Alegre from Washington 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 to Porto Alegre

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

Find hourly flight availability from Washington 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 May 1, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from State of Washington to Porto Alegre as you normally would.

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 May 1, 2025.
Copa Airlines
7.5
Good
1,414 reviews

Overall

7.5

Entertainment

6.8

Crew

8.1

Boarding

7.8

Food

6.8

Comfort

7.4

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
7.5
Good
1,414 reviews
Copa Airlines
7.5
Good
1,414 reviews

Overall

7.5

Entertainment

6.8

Crew

8.1

Boarding

7.8

Food

6.8

Comfort

7.4

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
8,696 reviews
Copa Airlines
7.5
Good
1,414 reviews

Overall

7.5

Entertainment

6.8

Crew

8.1

Boarding

7.8

Food

6.8

Comfort

7.4

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 Washington 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?

    Porto Alegre Salgado Filho (POA) is the airport you will fly into if you book a flight from Washington to Porto Alegre. It is only a 4.0 mi journey from Salgado Filho (POA) to Porto Alegre’s city center.

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

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

  • How can I find direct flights from Washington 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 to Porto Alegre.

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

    Yes. Cheapflights offers flight deals from Washington 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 Washington to Porto Alegre

See prices for flight routes from nearby airports that may be better suited for you.
Miami to Porto Alegre flights
Orlando to Porto Alegre flights
John F Kennedy Intl to Porto Alegre flights
Atlanta to Porto Alegre flights
Los Angeles to Porto Alegre flights
Newark to Porto Alegre flights
LaGuardia to Porto Alegre flights
Boston to Porto Alegre flights
Fort Lauderdale to Porto Alegre flights
San Francisco to Porto Alegre flights
Dulles Intl to Porto Alegre flights
Seattle to Porto Alegre flights
Las Vegas to Porto Alegre flights
O'Hare Intl to Porto Alegre flights
Dallas/Fort Worth to Porto Alegre flights
San Diego to Porto Alegre flights
Raleigh to Porto Alegre flights
Oakland to Porto Alegre flights
Austin to Porto Alegre flights
San Jose to Porto Alegre flights
Philadelphia to Porto Alegre flights
Detroit to Porto Alegre flights
George Bush Intcntl to Porto Alegre flights
Portland to Porto Alegre flights
Nashville to Porto Alegre flights
St. Louis to Porto Alegre flights
Ontario to Porto Alegre flights
San Antonio to Porto Alegre flights
San Francisco to Santa Maria flights
Sacramento to Porto Alegre flights
Santa Ana to Porto Alegre flights
Tulsa to Porto Alegre flights
Dulles Intl to Santa Maria flights
Newark to Caxias do Sul flights
New Orleans to Porto Alegre flights
Memphis to Porto Alegre flights
Hobby to Porto Alegre flights
Chattanooga to Porto Alegre flights
Birmingham to Porto Alegre flights

Top airline flying from Washington to Porto Alegre

Discover the top airline that operate flights from Washington 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$798Average$855FlexibilityNo cancel feeOn-time71%

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.