SEA - POA

$447 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 6/1. 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, 0 bags

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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41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$856
United Airlines
Wed 3/25Wed 4/1
SEA - POA • 2 stops
Cheapest one-way
$447
Multiple Airlines
Mon 6/1
SEA - POA • 3 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!
Flight Deals
Booking Insights
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

Wed, Mar 25 - Wed, Apr 1
United Airlines Logo
6:45 am - 6:30 pm
SEA
-
POA
31h 45m
2 stops
United Airlines Logo
5:10 pm - 12:19 am
POA
-
SEA
35h 09m
2 stops
$856United Airlines
Wed, Feb 25 - Tue, Mar 31
Multiple Airlines Logo
10:40 pm - 2:05 pm
SEA
-
POA
34h 25m
2 stops
Multiple Airlines Logo
6:05 pm - 9:48 pm
POA
-
SEA
55h 43m
2 stops
$903Multiple Airlines
Wed, Feb 25 - Tue, Mar 31
LATAM Airlines Logo
10:20 pm - 2:05 pm
SEA
-
POA
34h 45m
2 stops
LATAM Airlines Logo
6:05 pm - 9:48 pm
POA
-
SEA
55h 43m
2 stops
$908LATAM Airlines
Fri, Mar 6 - Fri, Mar 20
United Airlines Logo
11:59 pm - 3:25 pm
SEA
-
POA
34h 26m
2 stops
United Airlines Logo
5:10 pm - 8:56 pm
POA
-
SEA
31h 46m
2 stops
$932United Airlines
Wed, Feb 25 - Wed, Apr 1
GOL Logo
11:45 am - 1:00 pm
SEA
-
POA
20h 15m
2 stops
GOL Logo
5:10 pm - 11:40 pm
POA
-
SEA
34h 30m
2 stops
$992GOL
Wed, Feb 25 - Wed, Apr 1
United Airlines Logo
12:43 pm - 2:20 pm
SEA
-
POA
44h 37m
3 stops
United Airlines Logo
5:10 pm - 10:37 pm
POA
-
SEA
33h 27m
2 stops
$1,059United Airlines
Wed, Mar 25 - Wed, Apr 1
Multiple Airlines Logo
8:00 am - 2:50 pm
SEA
-
POA
26h 50m
2 stops
Multiple Airlines Logo
6:05 pm - 3:03 pm
POA
-
SEA
24h 58m
3 stops
$1,130Multiple Airlines
Wed, Feb 25 - Tue, Mar 31
United Airlines Logo
12:43 pm - 4:20 pm
SEA
-
POA
46h 37m
3 stops
United Airlines Logo
5:10 pm - 7:00 pm
POA
-
SEA
29h 50m
2 stops
$1,152United Airlines
Fri, Mar 6 - Fri, Mar 20
United Airlines Logo
12:36 pm - 3:25 pm
SEA
-
POA
45h 49m
3 stops
United Airlines Logo
3:25 pm - 8:56 pm
POA
-
SEA
33h 31m
2 stops
$1,154United Airlines
Wed, Mar 25 - Wed, Apr 1
Air Canada Logo
5:40 am - 2:50 pm
SEA
-
POA
29h 10m
3 stops
Air Canada Logo
6:05 pm - 3:03 pm
POA
-
SEA
24h 58m
3 stops
$1,158Air Canada
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 ($856) and LATAM Airlines ($908).

Find deals

Good to know

Cheapest flight$447
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 $447 for a one-way ticket and $856 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.

  • 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)