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Porto Alegre

$590+ Cheap flights from Portland (PDX) 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.
PDX — POA
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Portland to Porto Alegre

Best flights from Portland to Porto Alegre
Discover carefully curated flight deals from Portland to Porto Alegre that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/10. 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 4/296:53 amPDX - POA
2 stops31h 27mUnited Airlines
Sun 5/311:15 amPOA - PDX
2 stops38h 53mUnited Airlines
Deal found 12/10$1,423

Find flight deals from Portland to Porto Alegre

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) 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 12, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$1,423
(United Airlines)

One-way from

$590
(Kiwi.com)
Provider with most accurate pricing for Portland-Porto Alegre Salgado Filho flight deals.
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Provider most trusted by Cheapflights users for Portland-Porto Alegre Salgado Filho flights.
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From Portland to Porto Alegre Salgado Filho
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One-way flight from Portland to Porto Alegre Salgado Filho
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland 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 12, 2025.
Use the filters below to find and compare flights from Portland to Porto Alegre that are best for you.

Fly from

Portland

Fly to

Porto Alegre

Route

Depart

Return

Price

PortlandPorto Alegre

PDX - POA

PDXPOA

Portland

Wed 4/29

6:53 am-6:20 pm

2 stops31h 27m

Porto Alegre Salgado Filho

Sun 5/3

11:15 am-10:08 pm

2 stops38h 53m

$1,423

PortlandPorto Alegre

PDX - POA

PDXPOA

Portland

Fri 1/9

10:29 am-12:30 am

2 stops33h 01m

$590

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

  • Most accurate provider: When it comes to deals on Portland-Porto Alegre flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Porto Alegre flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Porto Alegre flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Porto Alegre flights, Cheapflights users trust FlightHub the most. FlightHub 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 Portland-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 Portland to Porto Alegre

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

Related info for your journey

Find useful and relevant information for your journey from Portland to Porto Alegre. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Portland to Porto Alegre?

    A quick flight from Portland to Porto Alegre can take about 31h 27m. United Airlines provides one of the quickest options available for as low as $1,423. Portland and Porto Alegre are separated by a distance of 6866 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland 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.

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