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$510+ Cheap flights from Porto Alegre (POA) to Washington

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 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
POA — SEA
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Find flight deals from Porto Alegre to Washington

Cheapest flights from Porto Alegre to Washington
Explore the most affordable flight options available from Porto Alegre to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This SmartFares deal was found by Cheapflights users on 10/29. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/286:00 pmPOA - SEA
2 stops23h 39mLATAM Airlines
Fri 12/57:55 amSEA - POA
2 stops28h 05mLATAM Airlines
Deal found 10/29$968
This Trip.com deal was found by Cheapflights users on 10/28. 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.
Thu 11/67:45 amPOA - PDX
3 stops39h 51mMultiple Airlines
Tue 11/111:26 pmPDX - POA
3 stops36h 04mMultiple Airlines
Deal found 10/28$1,072
This LATAM Airlines deal was found by Cheapflights users on 10/28. 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.
Thu 11/63:50 pmPOA - PDX
2 stops24h 55mLATAM Airlines
Wed 11/126:10 amPDX - POA
2 stops19h 20mLATAM Airlines
Deal found 10/28$1,220
This KAYAK deal was found by Cheapflights users on 10/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/65:55 pmPOA - PDX
2 stops22h 50mLATAM Airlines
Mon 11/107:05 amPDX - POA
2 stops23h 30mLATAM Airlines
Deal found 10/29$1,228
This American Airlines deal was found by Cheapflights users on 10/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/65:55 pmPOA - PDX
2 stops30h 14mAmerican Airlines
Mon 11/1010:45 pmPDX - POA
2 stops31h 15mAmerican Airlines
Deal found 10/28$1,248
This SmartFares deal was found by Cheapflights users on 10/28. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/54:50 amPOA - PDX
2 stops35h 45mMultiple Airlines
Mon 11/107:05 amPDX - POA
2 stops23h 30mMultiple Airlines
Deal found 10/28$1,250
This FlightHub deal was found by Cheapflights users on 10/28. 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.
Tue 11/44:40 amPOA - PDX
2 stops36h 26mLATAM Airlines
Mon 11/107:20 amPDX - POA
2 stops21h 00mLATAM Airlines
Deal found 10/28$1,323
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Fri 11/283:25 pmPOA - SEA
3 stops31h 45mUnited Airlines
Fri 12/57:10 amSEA - POA
2 stops28h 00mUnited Airlines
Deal found 10/29$2,390

Cheap flight deals from Porto Alegre to Washington

Keep the following information in mind while searching for Porto Alegre to Washington flight deals. Data was last updated October 30, 2025.

Round-trip from

$508
(United Airlines)

Popular in

December

Cheapest in

June

Average price

$1,066
From Porto Alegre Salgado Filho to Washington
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($297 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Porto Alegre to Washington 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 October 30, 2025.
Use the filters below to find and compare flights from Porto Alegre to Washington that are best for you.

Fly from

Porto Alegre

Fly to

Washington

Route

Depart

Return

Price

Porto AlegreSeattle

POA - SEA

POASEA

Porto Alegre Salgado Filho

Wed 3/25

3:25 pm-10:32 pm

2 stops35h 07m

Seattle/Tacoma Intl

Sun 3/29

11:50 pm-4:10 pm

2 stops36h 20m

$510

Porto AlegreSeattle

POA - SEA

POASEA

Porto Alegre Salgado Filho

Mon 3/9

5:10 pm-8:35 pm

2 stops31h 25m

Seattle/Tacoma Intl

Wed 3/25

7:00 am-6:20 pm

2 stops31h 20m

$609

Porto AlegreSeattle

POA - SEA

POASEA

Porto Alegre Salgado Filho

Fri 3/6

5:10 pm-11:23 am

2 stops23h 13m

Seattle/Tacoma Intl

Tue 3/24

12:45 pm-2:35 pm

3 stops45h 50m

$609

Porto AlegreSeattle

POA - SEA

POASEA

Porto Alegre Salgado Filho

Wed 3/11

3:25 pm-11:07 pm

2 stops35h 42m

Seattle/Tacoma Intl

Wed 3/25

12:45 pm-2:35 pm

3 stops45h 50m

$609

Porto AlegreSeattle

POA - SEA

POASEA

Porto Alegre Salgado Filho

Mon 3/9

5:10 pm-8:35 pm

2 stops31h 25m

Seattle/Tacoma Intl

Thu 3/26

7:00 am-2:35 pm

2 stops27h 35m

$709

Porto AlegreSeattle

POA - SEA

POASEA

Porto Alegre Salgado Filho

Thu 3/12

3:25 pm-11:07 pm

2 stops35h 42m

Seattle/Tacoma Intl

Sun 3/22

11:59 pm-4:10 pm

2 stops36h 11m

$775

Porto AlegreSeattle

POA - SEA

POASEA

Porto Alegre Salgado Filho

Sun 3/8

3:10 pm-12:20 pm

2 stops25h 10m

Seattle/Tacoma Intl

Sat 3/21

11:59 pm-2:35 pm

2 stops34h 36m

$775

Porto AlegreSeattle

POA - SEA

POASEA

Porto Alegre Salgado Filho

Sun 3/8

3:10 pm-6:58 pm

2 stops31h 48m

Seattle/Tacoma Intl

Wed 3/25

7:00 am-6:20 pm

2 stops31h 20m

$775

Porto AlegreSeattle

POA - SEA

POASEA

Porto Alegre Salgado Filho

Sun 3/8

3:10 pm-4:14 pm

3 stops29h 04m

Seattle/Tacoma Intl

Tue 3/24

11:00 am-2:35 pm

2 stops23h 35m

$775

Porto AlegreSeattle

POA - SEA

POASEA

Porto Alegre Salgado Filho

Wed 2/4

3:25 pm-4:01 pm

2 stops29h 36m

Seattle/Tacoma Intl

Mon 2/16

11:59 pm-6:20 pm

2 stops37h 21m

$775

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 27 results
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Best time to book a flight from Porto Alegre to Washington

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

What is the cheapest month to book a flight from Porto Alegre to State of Washington?

Currently, June is the cheapest month in which you can book a flight from Porto Alegre to State of Washington (average of $501). Flying from Porto Alegre to State of Washington in November is currently the most expensive (average of $1,293). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Porto Alegre to Washington. 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 from for flights from Porto Alegre to Washington?

    Porto Alegre Salgado Filho (POA), located 4.0 mi from the city center, is the airport you fly out of when you book flights from Porto Alegre to Washington.

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

    Airlines like United Airlines, Delta, and LATAM Airlines fly from Porto Alegre to State of Washington in about 30h 13m. The time it takes to get you to your destination can typically vary by up to 4h 54m. There are 6866 mi between Porto Alegre and State of Washington. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Porto Alegre to State of Washington one-way?

    The cheapest airlines for a one-way flight from Porto Alegre to State of Washington are LATAM Airlines ($727), American Airlines ($729), and United Airlines ($820).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Porto Alegre to Washington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Porto Alegre to State of Washington?

    Currently, June is the cheapest month in which you can book a flight from Porto Alegre to State of Washington (average of $501). Flying from Porto Alegre to State of Washington in November is currently the most expensive (average of $1,293). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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