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Porto Alegre

$915+ Cheap flights from Seattle (SEA) 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 7/27. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — POA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Seattle to Porto Alegre

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

Round-trip from

$915
(Trip.com)
From Seattle/Tacoma Intl to Porto Alegre Salgado Filho
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Find flight deals from Seattle to Porto Alegre

Cheapest flights from Seattle to Porto Alegre
Explore the most affordable flight options available from Seattle to Porto Alegre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Trip.com deal was found by Cheapflights users on 6/12. 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.
Sun 7/277:20 amSEA - POA
2 stops35h 55mMultiple Airlines
Sun 8/38:10 amPOA - SEA
2 stops30h 10mMultiple Airlines
Deal found 6/12$915
This United Airlines deal was found by Cheapflights users on 6/11. 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 7/48:00 amSEA - POA
2 stops28h 50mUnited Airlines
Fri 7/251:55 pmPOA - SEA
2 stops34h 53mUnited Airlines
Deal found 6/11$1,015
This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/306:00 amSEA - POA
2 stops33h 50mLATAM Airlines
Sat 7/127:20 amPOA - SEA
2 stops30h 51mLATAM Airlines
Deal found 6/10$1,232
This Copa Airlines deal was found by Cheapflights users on 6/11. 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 7/43:45 pmSEA - POA
2 stops28h 30mCopa Airlines
Thu 7/241:23 amPOA - SEA
2 stops24h 53mCopa Airlines
Deal found 6/11$1,320

Cheapflights Fare Finder

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

Fly from

Seattle

Fly to

Porto Alegre

Route

Depart

Return

Price

SeattlePorto Alegre

SEA - POA

SEAPOA

Seattle/Tacoma Intl

Sun 7/27

7:20 am-11:15 pm

2 stops35h 55m

Porto Alegre Salgado Filho

Sun 8/3

8:10 am-10:20 am

2 stops30h 10m

$915

SeattlePorto Alegre

SEA - POA

SEAPOA

Seattle/Tacoma Intl

Fri 7/4

8:00 am-4:50 pm

2 stops28h 50m

Porto Alegre Salgado Filho

Fri 7/25

1:55 pm-8:48 pm

2 stops34h 53m

$1,015

SeattlePorto Alegre

SEA - POA

SEAPOA

Seattle/Tacoma Intl

Mon 6/30

6:00 am-7:50 pm

2 stops33h 50m

Porto Alegre Salgado Filho

Sat 7/12

7:20 am-10:11 am

2 stops30h 51m

$1,232

SeattlePorto Alegre

SEA - POA

SEAPOA

Seattle/Tacoma Intl

Fri 7/4

3:45 pm-12:15 am

2 stops28h 30m

Porto Alegre Salgado Filho

Thu 7/24

1:23 am-10:16 pm

2 stops24h 53m

$1,320

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Best time to book a flight from Seattle to Porto Alegre

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

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

Find hourly flight availability from Seattle 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 June 12, 2025.

When flying from Seattle to Porto Alegre, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 17% versus a flight in the morning.

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 June 12, 2025.
LATAM Airlines
7.5
Good
1,785 reviews

Food

6.7

Boarding

7.6

Entertainment

7.0

Overall

7.5

Comfort

7.4

Crew

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2025

MCO - BOG

The problem was the delayed departure for airport reason I understood it was not a Latam responsibility. The crew could give something to drink and not only a candy.
LATAM Airlines
7.5
Good
1,785 reviews
LATAM Airlines
7.5
Good
1,785 reviews

Food

6.7

Boarding

7.6

Entertainment

7.0

Overall

7.5

Comfort

7.4

Crew

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2025

MCO - BOG

The problem was the delayed departure for airport reason I understood it was not a Latam responsibility. The crew could give something to drink and not only a candy.
Copa Airlines
7.5
Good
1,451 reviews
LATAM Airlines
7.5
Good
1,785 reviews

Food

6.7

Boarding

7.6

Entertainment

7.0

Overall

7.5

Comfort

7.4

Crew

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2025

MCO - BOG

The problem was the delayed departure for airport reason I understood it was not a Latam responsibility. The crew could give something to drink and not only a candy.
United Airlines
7.4
Good
8,790 reviews
LATAM Airlines
7.5
Good
1,785 reviews

Food

6.7

Boarding

7.6

Entertainment

7.0

Overall

7.5

Comfort

7.4

Crew

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2025

MCO - BOG

The problem was the delayed departure for airport reason I understood it was not a Latam responsibility. The crew could give something to drink and not only a candy.

Related info for your journey

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle 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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