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Cheap flights from Seattle to Porto Alegre from $559

1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Seattle to Porto Alegre

Cheap round-trip flights

Enter your travel dates to find the best prices.
Copa Airlines Logo
4:39 pm - 12:25 amSEA  Seattle/Tacoma Intl-POA Porto Alegre Salgado Filho
26h 46m2 stops Los Angeles Panama City Tocumen Intl
Copa Airlines Logo
1:35 am - 9:58 pmPOA  Porto Alegre Salgado Filho-SEA Seattle/Tacoma Intl
25h 23m2 stops Panama City Tocumen Intl Los Angeles
$1,256Copa Airlines
Mon, Nov 16 - Mon, Dec 7
LATAM Airlines Logo
9:20 pm - 6:40 amSEA  Seattle/Tacoma Intl-POA Porto Alegre Salgado Filho
28h 20m2 stops Atlanta Hartsfield-Jackson Lima J Chavez Intl
LATAM Airlines Logo
7:30 am - 12:09 amPOA  Porto Alegre Salgado Filho-SEA Seattle/Tacoma Intl
21h 39m2 stops Lima J Chavez Intl Atlanta Hartsfield-Jackson
$1,303LATAM Airlines
Sun, Jan 31 - Thu, Feb 4
LATAM Airlines Logo
9:20 pm - 6:40 amSEA  Seattle/Tacoma Intl-POA Porto Alegre Salgado Filho
28h 20m2 stops Atlanta Hartsfield-Jackson Lima J Chavez Intl
LATAM Airlines Logo
7:30 am - 12:09 amPOA  Porto Alegre Salgado Filho-SEA Seattle/Tacoma Intl
21h 39m2 stops Lima J Chavez Intl Atlanta Hartsfield-Jackson
$1,353LATAM Airlines
Sun, Jan 31 - Thu, Feb 4
LATAM Airlines Logo
6:00 am - 4:50 pmSEA  Seattle/Tacoma Intl-POA Porto Alegre Salgado Filho
29h 50m2 stops Atlanta Hartsfield-Jackson Santiago Arturo Merino Benitez
LATAM Airlines Logo
7:30 am - 12:09 amPOA  Porto Alegre Salgado Filho-SEA Seattle/Tacoma Intl
21h 39m2 stops Lima J Chavez Intl Atlanta Hartsfield-Jackson
$1,353LATAM Airlines
Sun, Jan 31 - Thu, Feb 4
LATAM Airlines Logo
6:00 am - 5:15 pmSEA  Seattle/Tacoma Intl-POA Porto Alegre Salgado Filho
30h 15m2 stops Atlanta Hartsfield-Jackson Sao Paulo Guarulhos Intl
LATAM Airlines Logo
7:30 am - 12:09 amPOA  Porto Alegre Salgado Filho-SEA Seattle/Tacoma Intl
21h 39m2 stops Lima J Chavez Intl Atlanta Hartsfield-Jackson
$1,360LATAM Airlines
Sun, Jan 31 - Thu, Feb 4
Multiple Airlines Logo
9:00 pm - 12:10 amSEA  Seattle/Tacoma Intl-POA Porto Alegre Salgado Filho
46h 10m3 stops Los Angeles Lima J Chavez Intl Sao Paulo Guarulhos Intl
Multiple Airlines Logo
7:30 am - 9:00 amPOA  Porto Alegre Salgado Filho-SEA Seattle/Tacoma Intl
30h 30m2 stops Lima J Chavez Intl Los Angeles
$1,433Multiple Airlines
Mon, Nov 16 - Tue, Dec 8
United Airlines Logo
7:00 am - 12:55 pmSEA  Seattle/Tacoma Intl-POA Porto Alegre Salgado Filho
24h 55m2 stops Chicago O'Hare Intl Sao Paulo Guarulhos Intl
United Airlines Logo
3:45 pm - 8:10 pmPOA  Porto Alegre Salgado Filho-SEA Seattle/Tacoma Intl
33h 25m3 stops Sao Paulo Guarulhos Intl Chicago O'Hare Intl Washington, D.C. Dulles Intl
$1,533United Airlines
Sun, Jan 31 - Thu, Feb 4
Multiple Airlines Logo
8:40 am - 12:55 pmSEA  Seattle/Tacoma Intl-POA Porto Alegre Salgado Filho
23h 15m3 stops Vancouver Intl Toronto Pearson Intl Sao Paulo Guarulhos Intl
Multiple Airlines Logo
5:40 am - 10:10 amPOA  Porto Alegre Salgado Filho-SEA Seattle/Tacoma Intl
33h 30m3 stops Sao Paulo Guarulhos Intl Mexico City Benito Juarez Guadalajara Miguel Hidal
$1,747Multiple Airlines
Mon, Nov 16 - Tue, Dec 8

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LATAM Airlines flights from Seattle to Porto Alegre

Our best LATAM Airlines deals on Seattle to Porto Alegre flight tickets
LATAM Airlines
Jan 31
SEA9:20 pmSeattle/Tacoma Intl
28h 20m
2 stops
POA6:40 amPorto Alegre Salgado Filho
Feb 4
POA7:30 amPorto Alegre Salgado Filho
21h 39m
2 stops
SEA12:09 amSeattle/Tacoma Intl
$1,303
LATAM Airlines
Jan 31
SEA6:00 amSeattle/Tacoma Intl
29h 50m
2 stops
POA4:50 pmPorto Alegre Salgado Filho
Feb 4
POA7:30 amPorto Alegre Salgado Filho
21h 39m
2 stops
SEA12:09 amSeattle/Tacoma Intl
$1,353
LATAM Airlines
Jan 31
SEA6:00 amSeattle/Tacoma Intl
30h 15m
2 stops
POA5:15 pmPorto Alegre Salgado Filho
Feb 4
POA7:30 amPorto Alegre Salgado Filho
21h 39m
2 stops
SEA12:09 amSeattle/Tacoma Intl
$1,360

momondo Fare Finder

 
Use the filters below to find and compare flights from Seattle to Porto Alegre that are best for you.

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Depart

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Price

Cheapest round-trip

SeattlePorto Alegre

SEA Seattle/Tacoma Intl - POA Porto Alegre Salgado Filho

SEAPOA

Seattle/Tacoma Intl

Mon 11/16

4:39 pm-12:25 am

2 stops26h 46m

Porto Alegre Salgado Filho

Mon 12/7

1:35 am-9:58 pm

2 stops25h 23m

$1,256
Quickest round-trip

SeattlePorto Alegre

SEA Seattle/Tacoma Intl - POA Porto Alegre Salgado Filho

SEAPOA

Seattle/Tacoma Intl

Sun 1/31

9:20 pm-6:40 am

2 stops28h 20m

Porto Alegre Salgado Filho

Thu 2/4

7:30 am-12:09 am

2 stops21h 39m

$1,303

SeattlePorto Alegre

SEA Seattle/Tacoma Intl - POA Porto Alegre Salgado Filho

SEAPOA

Seattle/Tacoma Intl

Sun 1/31

9:20 pm-6:40 am

2 stops28h 20m

Porto Alegre Salgado Filho

Thu 2/4

7:30 am-12:09 am

2 stops21h 39m

$1,353

SeattlePorto Alegre

SEA Seattle/Tacoma Intl - POA Porto Alegre Salgado Filho

SEAPOA

Seattle/Tacoma Intl

Sun 1/31

6:00 am-4:50 pm

2 stops29h 50m

Porto Alegre Salgado Filho

Thu 2/4

7:30 am-12:09 am

2 stops21h 39m

$1,353

SeattlePorto Alegre

SEA Seattle/Tacoma Intl - POA Porto Alegre Salgado Filho

SEAPOA

Seattle/Tacoma Intl

Sun 1/31

6:00 am-5:15 pm

2 stops30h 15m

Porto Alegre Salgado Filho

Thu 2/4

7:30 am-12:09 am

2 stops21h 39m

$1,360

SeattlePorto Alegre

SEA Seattle/Tacoma Intl - POA Porto Alegre Salgado Filho

SEAPOA

Seattle/Tacoma Intl

Mon 11/16

9:00 pm-12:10 am

3 stops46h 10m

Porto Alegre Salgado Filho

Tue 12/8

7:30 am-9:00 am

2 stops30h 30m

$1,433

SeattlePorto Alegre

SEA Seattle/Tacoma Intl - POA Porto Alegre Salgado Filho

SEAPOA

Seattle/Tacoma Intl

Sun 1/31

7:00 am-12:55 pm

2 stops24h 55m

Porto Alegre Salgado Filho

Thu 2/4

3:45 pm-8:10 pm

3 stops33h 25m

$1,533

SeattlePorto Alegre

SEA Seattle/Tacoma Intl - POA Porto Alegre Salgado Filho

SEAPOA

Seattle/Tacoma Intl

Mon 11/16

8:40 am-12:55 pm

3 stops23h 15m

Porto Alegre Salgado Filho

Tue 12/8

5:40 am-10:10 am

3 stops33h 30m

$1,747
Cheapest one-way

SeattlePorto Alegre

SEA Seattle/Tacoma Intl - POA Porto Alegre Salgado Filho

SEAPOA

Seattle/Tacoma Intl

Sun 10/25

8:08 am-12:25 am

2 stops36h 17m

$559
Quickest one-way

SeattlePorto Alegre

SEA Seattle/Tacoma Intl - POA Porto Alegre Salgado Filho

SEAPOA

Seattle/Tacoma Intl

Sun 10/25

8:08 am-11:20 pm

3 stops35h 12m

$631

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Seattle to Porto Alegre

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Porto Alegre according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Porto Alegre (SEA to POA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Porto Alegre

Best Price Found

$559

Fastest flight time

27h 30m

Direct flights

None
The best one-way flight to Porto Alegre from Seattle in the past 72 hours is $559. The best round-trip flight deal from Seattle to Porto Alegre found on momondo in the last 72 hours is $1,256.
The fastest flight from Seattle to Porto Alegre takes 27h 30m
There are no direct flights from Seattle to Porto Alegre. There are no popular flight routes from Seattle to Porto Alegre.
Search flight deals

Frequently asked questions about flying from Seattle to Porto Alegre

  • How far is Seattle/Tacoma Intl to Porto Alegre Salgado Filho by plane?

    The distance between Seattle/Tacoma Intl and Porto Alegre Salgado Filho is about 6933.3 mi. In terms of flight time, this usually takes a little over 27h 30m.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Porto Alegre Salgado Filho Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Porto Alegre Salgado Filho Airport were last updated today.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Porto Alegre Salgado Filho Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Porto Alegre Salgado Filho Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Porto Alegre Salgado Filho Airport.

  • What documentation or ID do you need to fly to Porto Alegre Salgado Filho Airport?

    The travel and health documents you'll need for your trip to Porto Alegre Salgado Filho Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Porto Alegre Salgado Filho Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Seattle to Porto Alegre?

Best airlines flying from Seattle to Porto Alegre

Compare and see reviews for airlines that fly from Seattle to Porto Alegre with momondo
Airline
Rating
Free Cancellation
Price
GOLPriceFrom $1,100Free CancellationRating
7.3
1,314 reviews
Search GOL flights

Frequently asked questions about flying from Seattle to Porto Alegre

  • How do I get Price Alerts for flights from Seattle to Porto Alegre?

    Confirm your travel details to search for the latest offers for flights from Seattle to Porto Alegre. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Seattle to Porto Alegre with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Porto Alegre?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Porto Alegre. momondo saves you time and could save you money on your trip.

Can I find flights from Seattle to Porto Alegre with flexible booking policies on momondo?

momondo does allow users to show only those flights to Porto Alegre from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Porto Alegre?

momondo provides multiple filters to help you find the best flight to Porto Alegre from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Seattle to Porto Alegre right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Seattle to Porto Alegre flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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