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Porto Alegre

$1,108+ 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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — POA
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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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 November 3, 2025.

Most accurate provider

AranGrant
2 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,091
(LATAM Airlines)
Provider with most accurate pricing for Seattle/Tacoma Intl-Porto Alegre Salgado Filho flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Porto Alegre Salgado Filho flights.
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From Washington to Porto Alegre Salgado Filho
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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 November 3, 2025.

This Expedia deal was found by Cheapflights users on 10/31. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1810:30 amPDX - POA
2 stops25h 30mLATAM Airlines
Tue 11/255:55 pmPOA - PDX
2 stops22h 51mLATAM Airlines
Deal found 10/31$1,141
This Delta deal was found by Cheapflights users on 11/2. 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.
Tue 12/3012:35 pmPDX - POA
2 stops39h 40mDelta
Wed 1/146:00 pmPOA - PDX
2 stops21h 37mDelta
Deal found 11/2$1,206
This KAYAK deal was found by Cheapflights users on 11/2. 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.
Fri 11/217:10 amSEA - POA
2 stops21h 10mLATAM Airlines
Fri 11/286:00 pmPOA - SEA
2 stops23h 39mLATAM Airlines
Deal found 11/2$1,248
This United Airlines deal was found by Cheapflights users on 10/31. 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 11/187:00 amPDX - POA
2 stops23h 05mUnited Airlines
Tue 11/253:25 pmPOA - PDX
3 stops36h 26mUnited Airlines
Deal found 10/31$1,298
This Travelocity deal was found by Cheapflights users on 11/2. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:35 pmPDX - POA
2 stops23h 30mMultiple Airlines
Tue 1/132:50 pmPOA - PDX
2 stops58h 00mMultiple Airlines
Deal found 11/2$1,366
This United Airlines deal was found by Cheapflights users on 11/2. 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 12/3111:02 amPDX - POA
2 stops22h 38mUnited Airlines
Tue 1/133:25 pmPOA - PDX
3 stops32h 23mUnited Airlines
Deal found 11/2$1,403
This Delta deal was found by Cheapflights users on 11/2. 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.
Tue 12/3012:35 pmPDX - POA
2 stops20h 30mDelta
Mon 1/126:00 pmPOA - PDX
2 stops21h 37mDelta
Deal found 11/2$1,406
This KAYAK deal was found by Cheapflights users on 11/2. 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 12/3010:05 pmPDX - POA
2 stops27h 25mLATAM Airlines
Tue 1/1310:05 amPOA - PDX
2 stops29h 32mLATAM Airlines
Deal found 11/2$1,426
This Ovago deal was found by Cheapflights users on 11/2. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1911:49 amSEA - POA
2 stops22h 51mGOL
Mon 1/59:20 pmPOA - SEA
2 stops42h 45mGOL
Deal found 11/2$2,203
This Copa Airlines deal was found by Cheapflights users on 11/2. 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 11/215:07 pmSEA - POA
2 stops26h 23mCopa Airlines
Thu 11/271:35 amPOA - SEA
2 stops39h 04mCopa Airlines
Deal found 11/2$2,311
This Ovago deal was found by Cheapflights users on 11/2. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1911:30 amSEA - POA
2 stops31h 25mLATAM Airlines
Sun 1/44:40 amPOA - SEA
2 stops23h 10mLATAM Airlines
Deal found 11/2$2,388
This Delta deal was found by Cheapflights users on 11/1. 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.
Sat 11/810:10 pmPDX - POA
2 stops27h 20mDelta
Sun 1/45:50 pmPOA - PDX
2 stops21h 47mDelta
Deal found 11/1$2,445

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 November 3, 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

PortlandPorto Alegre

PDX - POA

PDXPOA

Portland

Mon 2/2

11:59 am-7:20 pm

2 stops26h 21m

Porto Alegre Salgado Filho

Sat 2/7

6:00 pm-12:04 pm

2 stops23h 04m

$1,108

PortlandPorto Alegre

PDX - POA

PDXPOA

Portland

Mon 2/2

7:00 am-7:20 pm

2 stops31h 20m

Porto Alegre Salgado Filho

Mon 2/9

6:00 pm-12:04 pm

2 stops23h 04m

$1,108

PortlandPorto Alegre

PDX - POA

PDXPOA

Portland

Mon 1/26

7:00 am-7:20 pm

2 stops31h 20m

Porto Alegre Salgado Filho

Mon 2/9

7:45 am-10:24 pm

2 stops19h 39m

$1,108

PortlandPorto Alegre

PDX - POA

PDXPOA

Portland

Tue 3/3

11:45 am-6:30 am

2 stops37h 45m

Porto Alegre Salgado Filho

Sat 3/7

7:45 am-6:18 pm

2 stops39h 33m

$1,110

PortlandPorto Alegre

PDX - POA

PDXPOA

Portland

Mon 2/2

11:59 am-7:20 pm

2 stops26h 21m

Porto Alegre Salgado Filho

Tue 2/10

5:55 pm-10:49 am

2 stops21h 54m

$1,110

PortlandPorto Alegre

PDX - POA

PDXPOA

Portland

Mon 1/26

7:00 am-7:20 pm

2 stops31h 20m

Porto Alegre Salgado Filho

Wed 2/11

2:55 pm-7:03 pm

2 stops33h 08m

$1,110

PortlandPorto Alegre

PDX - POA

PDXPOA

Portland

Fri 1/30

7:00 am-5:05 pm

2 stops29h 05m

Porto Alegre Salgado Filho

Thu 2/12

2:55 pm-7:03 pm

2 stops33h 08m

$1,110

PortlandPorto Alegre

PDX - POA

PDXPOA

Portland

Tue 1/27

7:00 am-6:45 pm

2 stops30h 45m

Porto Alegre Salgado Filho

Wed 2/11

2:55 pm-7:03 pm

2 stops33h 08m

$1,110

PortlandPorto Alegre

PDX - POA

PDXPOA

Portland

Sat 1/31

7:00 am-9:15 am

2 stops45h 15m

Porto Alegre Salgado Filho

Mon 2/9

7:45 am-10:49 am

2 stops32h 04m

$1,116

PortlandPorto Alegre

PDX - POA

PDXPOA

Portland

Sat 1/31

7:00 am-9:15 am

2 stops45h 15m

Porto Alegre Salgado Filho

Thu 2/12

6:40 am-10:10 pm

2 stops44h 30m

$1,118

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 20 results
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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
No data available for this route at this time. Please check back soon.

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.

  • How long is the flight from State of Washington to Porto Alegre?

    Airlines like LATAM Airlines, Delta, and GOL fly from State of Washington to Porto Alegre in about 22h 51m. The time it takes to get you to your destination can typically vary by up to 14h 54m. Airlines will cover a distance of 6926 mi. This flight may include one or multiple stops.

  • 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

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Alternative routes for Washington to Porto Alegre

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