SEA - POA

$530 Find Cheap Flights from Seattle to Porto Alegre - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$1,022
Typical prices: $1,100-$1,430
American Airlines
Mon 10/8Mon 10/15
SEA - POA • 2 stops
Cheapest one-way
$910
Typical prices: $429-$659
GOL
Thu 12/20
SEA - POA • 2 stops
When to travel
October
Cheapest • 44% price drop
December
Most popular
Good to know
+1
Good to know
+1
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We hope you love your trip to Porto Alegre!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Porto Alegre (SEA-POA)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Porto Alegre

Mon, Nov 16 - Wed, Dec 9
Multiple Airlines Logo
7:10 am - 5:15 pmSEA  Seattle/Tacoma Intl-POA Porto Alegre Salgado Filho
29h 05m2 stops New York John F Kennedy Intl Sao Paulo Guarulhos Intl
Multiple Airlines Logo
5:40 pm - 2:47 pmPOA  Porto Alegre Salgado Filho-SEA Seattle/Tacoma Intl
26h 07m2 stops Santiago Arturo Merino Benitez Los Angeles
$1,013Multiple Airlines
Thu, Oct 8 - Thu, Oct 15
American Airlines Logo
12:04 pm - 3:45 pmSEA  Seattle/Tacoma Intl-POA Porto Alegre Salgado Filho
23h 41m2 stops Dallas/Fort Worth Sao Paulo Guarulhos Intl
American Airlines Logo
2:05 pm - 11:14 amPOA  Porto Alegre Salgado Filho-SEA Seattle/Tacoma Intl
25h 09m2 stops Sao Paulo Guarulhos Intl Dallas/Fort Worth
$1,022American Airlines
Sun, Jan 31 - Thu, Feb 4
LATAM Airlines Logo
7:20 am - 4:50 pmSEA  Seattle/Tacoma Intl-POA Porto Alegre Salgado Filho
28h 30m2 stops New York John F Kennedy Intl 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
$1,065LATAM Airlines
Sun, Jan 31 - Thu, Feb 4
LATAM Airlines Logo
11:50 am - 4:50 pmSEA  Seattle/Tacoma Intl-POA Porto Alegre Salgado Filho
24h 00m2 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
$1,065LATAM Airlines
Wed, Oct 7 - Wed, Oct 14
LATAM Airlines Logo
8:05 am - 11:15 amSEA  Seattle/Tacoma Intl-POA Porto Alegre Salgado Filho
23h 10m2 stops Miami Sao Paulo Guarulhos Intl
LATAM Airlines Logo
5:50 pm - 2:12 pmPOA  Porto Alegre Salgado Filho-SEA Seattle/Tacoma Intl
24h 22m2 stops Sao Paulo Guarulhos Intl Boston Logan Intl
$1,075LATAM Airlines
Sun, Jan 31 - Thu, Feb 4
LATAM Airlines Logo
9:30 am - 4:50 pmSEA  Seattle/Tacoma Intl-POA Porto Alegre Salgado Filho
26h 20m2 stops Los Angeles 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
$1,165LATAM Airlines
Mon, Nov 16 - Wed, Dec 9
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
5:10 pm - 8:59 pmPOA  Porto Alegre Salgado Filho-SEA Seattle/Tacoma Intl
32h 49m2 stops Sao Paulo Guarulhos Intl Toronto Pearson Intl
$1,206Multiple Airlines
Mon, Nov 16 - Wed, Dec 9
Air Canada Logo
8:40 am - 3:00 pmSEA  Seattle/Tacoma Intl-POA Porto Alegre Salgado Filho
25h 20m3 stops Vancouver Intl Toronto Pearson Intl Sao Paulo Guarulhos Intl
Air Canada Logo
2:00 pm - 2:37 pmPOA  Porto Alegre Salgado Filho-SEA Seattle/Tacoma Intl
29h 37m3 stops Sao Paulo Guarulhos Intl Toronto Pearson Intl Vancouver Intl
$1,225Air Canada
Booking Insights

Price, demand and travel trends for Seattle to Porto Alegre flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Seattle to Porto Alegre with more confidence.

How much is a round-trip flight from Seattle to Porto Alegre?

Round-trip flights from Seattle to Porto Alegre start at $1,022. Prices are below average for this route right now, with typical round-trip fares ranging from $1,100 to $1,430. The lowest price found in the past 5 days was $1,022 on American Airlines.

What's the cheapest day of the week to fly from Seattle to Porto Alegre?

Thursday is the cheapest day of the week to fly from Seattle to Porto Alegre, it is 16% cheaper than the average day. Saturday is the most expensive day with flight prices 42% higher than average. Based on deals found by KAYAK users in the last 12 months.

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Key details for Seattle to Porto Alegre flights

Low season

April

Cheapest flight

$910
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 75% increase in price.
Flight from Seattle to Porto Alegre

When to book flights from Seattle to Porto Alegre

Are your dates flexible? Find out the best times to travel from Seattle to Porto Alegre based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Seattle to Porto Alegre flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Seattle to Porto Alegre?

    Flights from Seattle to Porto Alegre usually depart from Seattle/Tacoma Intl (SEA) and arrive at Porto Alegre Salgado Filho (POA).

  • What cabin classes can I book on flights from Seattle to Porto Alegre?

    Only Economy Class is available on flights from Seattle to Porto Alegre.

  • Can I save money by using flexible dates for flights from Seattle to Porto Alegre?

    Yes. Being flexible with your travel dates can save you up to 41% on the Seattle to Porto Alegre route. Thursday is the cheapest departure day at $1,010 round-trip on average, while Saturday is the most expensive at $1,708, a difference of $698. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Porto Alegre?

    Some of the most popular sights in Porto Alegre are Araujo Vianna Auditorium, Fiergs Exhibition and Convention Center and Moinhos de Vento Park. These are among the most viewed places in Porto Alegre on KAYAK.

  • Do I need a passport to fly from Seattle to Porto Alegre?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from Seattle to Porto Alegre changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $1,022 to $1,800. That means the highest observed fare was about 76% higher than the lowest one.

  • How are flight prices from Seattle to Porto Alegre looking right now?

    One-way fares from Seattle to Porto Alegre are currently higher than usual. Average one-way flight prices are about $912, which is 66% above the typical average for this route.

  • What is the time difference between Seattle and Porto Alegre?

    Porto Alegre is 4 hours ahead of Seattle (Brasilia Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Porto Alegre Salgado Filho Airport (POA)?

    Porto Alegre Salgado Filho Airport (POA) hosts 5 major car rental companies, with daily rates starting from around $2 for economy cars. Top options include:
    · FOCO
    · Localiza
    · Avis
    · MOVIDA
    · Budget

  • How much should I expect to pay for a Seattle to Porto Alegre flight?

    Round-trip flights from Seattle to Porto Alegre range from $1,100 to $1,430, with an average of $1,197 over the past 12 months. Anything below $1,100 counts as a good deal.

Your guide to booking Seattle to Porto Alegre flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Thursday departure instead of Saturday. On this route, Thursday flights average $1,010 - about $698 less than Saturday (41% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Seattle to Porto Alegre trip for October. Fares historically average $667 round-trip in that month - typically $1,426 less than the most expensive month, which is December (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Porto Alegre Salgado Filho Airport.
    - ibis Porto Alegre Aeroporto
    - Novotel Porto Alegre Airport
    - Hotel Express Aeroporto

Everything you need to know for your flight from Seattle to Porto Alegre

Information on your arrival and departure airports

Seattle (SEA)
Porto Alegre (POA)