SEA - POA

$313 Find Cheap Flights from Seattle to Porto Alegre

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Porto Alegre departing on 10/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Porto Alegre

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Porto Alegre, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Porto Alegre, as well as popular online travel agencies
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Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Porto Alegre that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Porto Alegre

Sat, Nov 1 - Sat, Nov 8
United Airlines Logo
11:59 pm - 4:20 pmSEA-POA
36h 21m2 stops
United Airlines Logo
3:45 pm - 9:50 amPOA-SEA
23h 05m2 stops
$729United Airlines
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Thu, Oct 30 - Thu, Nov 6
Multiple Airlines Logo
8:00 am - 5:00 pmSEA-POA
29h 00m2 stops
Multiple Airlines Logo
7:45 am - 1:02 pmPOA-SEA
34h 17m2 stops
$865Multiple Airlines
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Thu, Oct 30 - Wed, Nov 5
Multiple Airlines Logo
4:30 pm - 6:30 amSEA-POA
34h 00m2 stops
Multiple Airlines Logo
4:45 am - 10:27 amPOA-SEA
34h 42m2 stops
$885Multiple Airlines
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Thu, Oct 30 - Thu, Nov 6
United Airlines Logo
7:10 am - 2:20 pmSEA-POA
27h 10m2 stops
United Airlines Logo
3:25 pm - 6:10 pmPOA-SEA
31h 45m3 stops
$995United Airlines
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Thu, Oct 30 - Thu, Nov 6
Air Canada Logo
10:05 am - 4:30 pmSEA-POA
26h 25m3 stops
Air Canada Logo
3:25 pm - 2:31 pmPOA-SEA
28h 06m3 stops
$1,119Air Canada
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Sat, Nov 1 - Sat, Nov 8
United Airlines Logo
8:00 am - 3:25 pmSEA-POA
27h 25m3 stops
United Airlines Logo
3:45 pm - 9:50 amPOA-SEA
23h 05m2 stops
$1,192United Airlines
Find Deal
Sat, Nov 1 - Sat, Nov 8
Air Canada Logo
5:50 am - 8:10 pmSEA-POA
34h 20m3 stops
Air Canada Logo
3:45 pm - 2:31 pmPOA-SEA
27h 46m3 stops
$1,195Air Canada
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Sat, Nov 1 - Fri, Nov 7
Copa Airlines Logo
12:41 pm - 12:30 amSEA-POA
31h 49m2 stops
Copa Airlines Logo
1:35 am - 10:30 pmPOA-SEA
25h 55m2 stops
$1,343Copa Airlines
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Everything you should know

Cheapest round-trip
$729
United Airlines
Sat 11/1Sat 11/8
SEA - POA • 2 stops
Cheapest one-way
$313
Multiple Airlines
Thu 10/30
SEA - POA • 2 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Porto Alegre!
Booking Insights

KAYAK's insights & trends for Seattle to Porto Alegre flights

Get data-powered insights and trends into flights from Seattle to Porto Alegre to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Seattle to Porto Alegre?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Seattle to Porto Alegre were found on United Airlines ($729) and Air Canada ($1,119).

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Good to know

Cheapest flight$313
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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Porto Alegre

  • What is the cheapest flight from Seattle to Porto Alegre?

    In the last 3 days, the lowest price for a flight from Seattle to Porto Alegre was $313 for a one-way ticket and $729 for a round-trip.

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

    Yes, you’ll need a passport to travel to Porto Alegre from Seattle.

  • Which aircraft models fly most regularly from Seattle to Porto Alegre?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Porto Alegre?

    Star Alliance is the only airline alliance operating flights between Seattle and Porto Alegre.

  • How does KAYAK find such low prices on flights from Seattle to Porto Alegre?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Porto Alegre.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Porto Alegre?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto Alegre from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Porto Alegre?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto Alegre with an airline and back to Seattle with another airline. Booking your flights between Seattle and POA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Porto Alegre?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto Alegre from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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)

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