SEA - POA

$918 Find Cheap Flights from Seattle to Porto Alegre - Compare and Save

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Porto Alegre departing on 11/13. 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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Everything you should know

Cheapest round-trip
$918
LATAM Airlines
Fri 11/13Tue 11/17
SEA - POA • 2 stops
Top airlines
Cheapest • from $918 (round-trip)
Best reviews • 7.3 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Seattle and Porto Alegre. You'll need at least 2 connections.
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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)

 
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

Fri, Nov 13 - Tue, Nov 17
LATAM Airlines Logo
8:25 am - 12:15 pm
SEA
-
POA
22h 50m
2 stops
LATAM Airlines Logo
7:30 am - 12:09 am
POA
-
SEA
21h 39m
2 stops
$918LATAM Airlines
Wed, Aug 12 - Wed, Aug 19
GOL Logo
2:07 pm - 3:40 pm
SEA
-
POA
21h 33m
2 stops
GOL Logo
1:40 pm - 11:58 am
POA
-
SEA
26h 18m
2 stops
$921GOL
Thu, Jul 16 - Mon, Jul 27
Delta Logo
7:15 am - 11:15 am
SEA
-
POA
24h 00m
2 stops
Delta Logo
7:05 pm - 10:10 pm
POA
-
SEA
31h 05m
2 stops
$1,021Delta
Thu, Jul 16 - Tue, Jul 28
Delta Logo
7:15 am - 11:15 am
SEA
-
POA
24h 00m
2 stops
Delta Logo
5:50 pm - 2:55 pm
POA
-
SEA
25h 05m
2 stops
$1,059Delta
Sun, Aug 9 - Sun, Aug 16
LATAM Airlines Logo
8:05 am - 12:40 am
SEA
-
POA
36h 35m
2 stops
LATAM Airlines Logo
9:55 pm - 10:02 pm
POA
-
SEA
52h 07m
2 stops
$1,062LATAM Airlines
Wed, Jul 15 - Wed, Jul 29
Multiple Airlines Logo
6:03 am - 6:20 am
SEA
-
POA
20h 17m
2 stops
Multiple Airlines Logo
9:55 pm - 10:09 am
POA
-
SEA
40h 14m
2 stops
$1,102Multiple Airlines
Thu, Jul 16 - Thu, Jul 30
Delta Logo
7:15 am - 11:15 am
SEA
-
POA
24h 00m
2 stops
Delta Logo
7:05 pm - 8:28 pm
POA
-
SEA
29h 23m
2 stops
$1,124Delta
Fri, Jul 17 - Mon, Jul 27
LATAM Airlines Logo
7:15 am - 4:55 pm
SEA
-
POA
29h 40m
2 stops
LATAM Airlines Logo
7:05 pm - 10:10 pm
POA
-
SEA
31h 05m
2 stops
$1,127LATAM Airlines
Sun, Aug 9 - Sun, Aug 16
Multiple Airlines Logo
6:03 am - 6:20 am
SEA
-
POA
20h 17m
2 stops
Multiple Airlines Logo
9:55 pm - 10:09 am
POA
-
SEA
40h 14m
2 stops
$1,131Multiple Airlines
Wed, Aug 12 - Wed, Aug 19
GOL Logo
2:07 pm - 3:40 pm
SEA
-
POA
21h 33m
2 stops
GOL Logo
6:45 pm - 10:58 am
POA
-
SEA
20h 13m
2 stops
$1,146GOL
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 5 days.

In the past 5 days, the cheapest round-trip tickets from Seattle to Porto Alegre were found on LATAM Airlines ($918) and GOL ($921).

Good to know

Cheapest flight$918
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 5 days, the lowest price for a flight from Seattle to Porto Alegre was $918 for a round-trip ticket.

  • 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.

Reviews of the top airline flying from Seattle to Porto Alegre

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Porto Alegre. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Porto Alegre? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
GOLOverall score based on 1244 reviews
7.0Comfort
6.0Food
8.1Crew
6.2Entertainment
7.3Boarding
Airline reviews

The pilots landing and taking off was very bad on the first flight, the second one taking off was great but landing was also rough

4.0 OkayAndre, Jan 2026
MIA - BSB
Read more GOL reviews

The pilots landing and taking off was very bad on the first flight, the second one taking off was great but landing was also rough

The check in and on the ground experience is very poor. Their online check and trip management is the worst I have ever seen and they have long lines to check in at the airport, technology is glitchy/unusable and have exorbitant baggage fees. The flight itself is fine, although the food is about what you would expect and their was no functioning entertainment for an international flight.

My experience with this flight was extremely negative and resulted in serious financial and personal consequences. The flight departed with a significant delay, which caused me to miss my international connecting flight. As a direct result of this delay — which was entirely beyond my control — I was unable to reach my final destination on time, causing me to lose a previously scheduled hair transplant surgery that had been arranged months in advance. This was not a minor inconvenience. The surgery involved: • A reserved operating room • Medical and technical staff scheduled specifically for that date • Surgical instruments prepared in advance • Strict scheduling that does not allow for easy rescheduling Due to the airline’s delay and poor handling of the situation: • I lost already paid international flight tickets • I was forced to purchase new tickets, incurring duplicate expenses • I spent over six additional hours in airports, under stressful conditions • I incurred unexpected costs for meals and transportation • I lost a medical opportunity that cannot be easily recovered, along with the emotional distress associated with it Although the airline covered one night of hotel accommodation, this did not address the real impact of the delay, nor the significant damages caused by missing a critical medical procedure. The lack of punctuality, planning, and effective solutions reflects a serious lack of responsibility toward passengers, especially when international connections and time-sensitive medical commitments are involved. I do not recommend this airline for travelers with important schedules, medical appointments, or critical connections. In my case, the delay did not merely cause inconvenience — it resulted in the loss of a surgery and substantial financial damage.

I was not able to get on the flight due to delays out of Philadelphia. I arrived in MIA at 10:30pm and there was no one at the GOL Desk. Is there any flight credit available for this flight?

the boarding staff were incredibly officious. our carry-on case was borderline within dimensions but staff were not prepared to show ANY flexibility even though many others with larger carry-on luggage were allowed to board. we were understandably furious but the staff were incredibly disrespectful. we called the supervisor who eventually agreed to look on board the plane to see if there was room for our case (one case between 2 of us) and reluctantly agreed to allow us on. The staff on board were excellent though and realized we had been treated badly and were very helpful both in finding a place for our case, some distance from our seats, and helping us to retrieve it when we landed. We are regular travelers on Gol and have Diamante status and had chosen the better Conforto + seats, so we expected better treatment from the ground staff. Also the cabins are of a size that will only fit 3 cases of normal size with a large gap of about 30cm of wasted space. If our case were deemed to be oversize, which I dispute, the extra 1cm would not have made the slightest difference.

It was really bad. Inexperienced and rude people during check-in in Miami, a small and uncomfortable airplane, and problems with the airline caused me to lose my connection flight in Brasilia. Terrible experience!

Obviously it would be better if we had screens available.

The plane was fine and the crew was very nice. Even though we bought our tickets eight months in advance and had seats reserved, they changed our seats. Instead of being in seats 7E and 7F, we were separated and put in two middle seats away from each other. When checking in, the attendant put us in an exit row together, but 10 rows back from where we had reserved. But you have to be younger than 60 to be in an exit row. So when everyone else boarded we were moved to last row 33, right next to bathrooms.

I missed it because of the delay in the other flights. Attendants in the airport sent me from one side to the other many times due to poor information.

Too much delay in the first two flights, so I lost the connection to the final destination.

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

Information on your arrival and departure airports