$155 Find Cheap Flights from Seattle to South America

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 South America departing on 3/24. 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

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Cheap Flights from Seattle to South America

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lima
Lima2 stops$513
Bogotá
Bogotá1 stop$388
Buenos Aires
Buenos Aires2 stops$933
Sao Paulo
Sao Paulo1 stop$616
Rio de Janeiro
Rio de Janeiro2 stops$806
Santiago
Santiago2 stops$723
Cartagena
Cartagena2 stops$496
Quito
Quito2 stops$500
Guayaquil
Guayaquil2 stops$530
Cali
Cali2 stops$459
Cusco
Cusco2 stops$697
Pereira
Pereira2 stops$586
Montevideo
Montevideo3 stops$913
Barranquilla
Barranquilla2 stops$492
Asuncion
Asuncion2 stops$871
Lima
Lima2 stops$513
Bogotá
Bogotá1 stop$388
Buenos Aires
Buenos Aires2 stops$933
Sao Paulo
Sao Paulo1 stop$616
Rio de Janeiro
Rio de Janeiro2 stops$806
Santiago
Santiago2 stops$723
Cartagena
Cartagena2 stops$496
Quito
Quito2 stops$500
Guayaquil
Guayaquil2 stops$530
Cali
Cali2 stops$459
Cusco
Cusco2 stops$697
Pereira
Pereira2 stops$586
Montevideo
Montevideo3 stops$913
Barranquilla
Barranquilla2 stops$492
Asuncion
Asuncion2 stops$871

Book Cheap Seattle to South America Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to South America 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 South America

jue., may. 7 - lun., may. 11
Multiple Airlines Logo
2:20 pm - 12:25 pm
SEA
-
BOG
20h 05m
1 stop
Multiple Airlines Logo
11:55 pm - 9:59 pm
BOG
-
SEA
24h 04m
1 stop
$388Multiple Airlines
dom., may. 3 - mié., may. 6
Multiple Airlines Logo
2:20 pm - 6:15 am
SEA
-
BOG
13h 55m
1 stop
Multiple Airlines Logo
11:55 pm - 12:17 pm
BOG
-
SEA
14h 22m
1 stop
$391Multiple Airlines
vie., mar. 6 - lun., mar. 9
LATAM Airlines Logo
11:35 pm - 9:20 am
SEA
-
LIM
30h 45m
2 stops
LATAM Airlines Logo
8:00 am - 10:02 pm
LIM
-
SEA
16h 02m
1 stop
$535LATAM Airlines
mar., abr. 7 - mar., jun. 2
LATAM Airlines Logo
7:20 am - 8:50 am
SEA
-
GRU
21h 30m
1 stop
LATAM Airlines Logo
11:00 pm - 10:03 pm
GRU
-
SEA
27h 03m
1 stop
$616LATAM Airlines
lun., mar. 2 - mar., mar. 17
American Airlines Logo
11:45 am - 8:10 am
SEA
-
GRU
15h 25m
1 stop
American Airlines Logo
11:00 pm - 12:54 pm
GRU
-
SEA
17h 54m
1 stop
$632American Airlines
lun., ago. 10 - lun., ago. 31
Delta Logo
11:35 pm - 5:20 am
SEA
-
GRU
25h 45m
2 stops
Delta Logo
11:00 pm - 9:59 pm
GRU
-
SEA
26h 59m
1 stop
$633Delta
dom., mar. 1 - mar., mar. 17
Delta Logo
9:55 pm - 9:55 am
SEA
-
GRU
31h 00m
1 stop
Delta Logo
9:00 pm - 7:48 pm
GRU
-
SEA
26h 48m
1 stop
$634Delta
mié., mar. 11 - jue., mar. 19
GOL Logo
11:45 am - 4:30 pm
SEA
-
CGH
24h 45m
2 stops
GOL Logo
5:05 pm - 12:54 pm
CGH
-
SEA
23h 49m
2 stops
$911GOL
dom., mar. 22 - jue., abr. 2
GOL Logo
11:45 am - 1:20 pm
SEA
-
CGH
21h 35m
2 stops
GOL Logo
6:00 am - 11:40 pm
CGH
-
SEA
21h 40m
2 stops
$971GOL
mar., mar. 31 - mar., abr. 7
American Airlines Logo
7:25 am - 7:15 am
SEA
-
EZE
19h 50m
2 stops
American Airlines Logo
8:40 pm - 2:27 pm
EZE
-
SEA
21h 47m
2 stops
$1,036American Airlines
Booking Insights

KAYAK's insights & trends for Seattle to South America flights

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

What is the cheapest month to fly from Seattle to South America?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to South America, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to South America is January, when tickets cost $919 (return) on average. On the other hand, the most expensive months are July and February, when the average cost of round-trip tickets is $1,233 and $1,152 respectively.

How far in advance should I book a flight from Seattle to South America?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to South America, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to South America, you should book around 6 weeks before departure, which saves you about 21% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$155
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 20% increase in price.
Flight from Seattle to Bogotá

FAQs - booking South America flights

  • How does KAYAK find such low prices on flights from Seattle to South America?

    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 South America.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Seattle to South America 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 South America?

    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 from Seattle to South America with an airline and back with another airline.

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

    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 from Seattle to South America up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Seattle to South America

 
Need help choosing which airline to fly with from Seattle to South America? 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.
7.9
DeltaOverall score based on 8204 reviews
7.9Comfort
7.8Entertainment
7.2Food
8.5Crew
8.1Boarding
Airline reviews

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

10.0 ExcellentSoosnata, Feb 2026
LAX - HNL
Read more Delta reviews

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

Delta continues to set the benchmark for traveler-friendly service with minimal disruption and clear communication within the mainland US (coast to coast). I am consistently pleased to be a Delta customer, and this experience once again met my expectations. There was a brief delay departing from MIA due to a technical issue that required the aircraft to return to the gate. However, the situation was handled professionally and transparently. Fortunately, my planned layover allowed ample buffer time, so the adjustment caused no stress. Overall, another smooth and reassuring experience.

Good experience and the flight landed early. There was no food I had or entertainment.

Flight was delayed and no reasons provided. After the passengers were boarded, the crew made announcement that the captain has jot arrived and he would take another 15 mins. All passengers patiently sat until the captain came and started. Terrible experience!

Flight was delayed. No information on why it was delayed. After we boarded the flight, , the crew made announcement that the captain hs not arrived and he will take 15 mins more to arrive. Passengers were just sitting patiently for the captain to arrive and start, Terrible experience.

Totally worth the miles to upgrade to Delta Comfort. Plenty of legroom.

This was my first time flying Delta ever and I had a great experience!

Smallest leg room I've ever had on a plane.

They took all carry-on luggage from Groups 6 -9 - I was group 5 and waiting in line to board - they made me check my luggage too. That then went to baggage claim and delayed departure from the airport. There was overhead room in my seating area - Delta over reacted. Also, had a gentleman next to me that took up 1/2 my seat.

Excellent!!! Aeromexico is a great airline. What was not that good is the service provided by Kayak. It is never clear and not easy to manage.

Apart of Sky miles delta. And they go everywhere in Brazil

We were not allowed to carry a bottle of water onto the 8 hour flight.

Comfort in exit seat was excellent. FLight crew and flight were excellent. However exit seat tray table was broken so could not use it. Entertainment monitor did not work at all despite attempts to reset it.

We traveled with two young children, and it was not possible for our family to be seated together. No one offered help or assistance to organize seating so we could sit with our kids. In the end, we managed to find two seats in Economy so I could at least sit with one of them, even though I had originally paid for Comfort+. In summary, I had to downgrade my seat just to be able to sit with one of my children, which was very disappointing

I booked a flight through Kayak to Brazil I have traveled to Brazil several times before Kayak Delta or LATAM never mentioned during the booking or in the pre flight process that the visa requirements to visit Brazil have changed earlier this year. I was unaware of this change and as such never got a visa and was unable to fly from JFK to Sao Paulo Add to this that Delta allowed me to fly from Boston to JFK which they should not have as I didn’t have a visa. It has been a terrible experience and a huge loss of money

Wish the seats were a little more comfortable.. it was a 6 hrs nonstop trip. But the crew was courteous and w a smile

I like this airline a lot no problems at all, except being forced to check a carry-on bag ., Overall very good airline

The assistance we received and the flight itself was wonderful. We will fly with LATAM airlines again, in the future.

Latam may be the worst airline in the world, far worse than even the lowest of low cost airlines in the USA. I wasted hours trying to PAY THEM TO CHECK A BAG! Then they misled me at the terminal, sent me through the wrong security line, the list goes on and on... Just absolutely terrible in every way. Avoid at all costs.

Check in -- in business took over 30 mins as there was only one attendant. Boarding was also a mess. The seat was too narrow and was not working properly. Food was very bad and the entertainment very poor. Crew was very polite and helpful, in fairness.

Entertainment kept turning itself off. Gave up on watching a movie.

Both the WIFI and entertainment did not work for 2.5h

The crew made our experience extremely bad. They were rude and didn’t have anything for kids.

Very old flight - time to retire it for newer airplanes

2+ hours delayed Outlet in row 12 did not work Tv monitors did not work Lights kept off the entire flight for at 5pm-7pm flight

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Do not like the size of the overhead bin. I think staff should monitor the size of suitcases that are being carried on by passengers to ensure they meet the size requirement.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

Both of my flights arrived early and check in process was smooth

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?

I have a hand injury and the flight attendant denied to help me with luggage, she said "she couldn't help me because I should manage my own way to put the luggage on the plane" SO RUDE

I had two around 6 hours flight and they did not even offer water to us.

Overall it was good. The food was not great quality and seats were very uncomfortable. But overall the staff was very friendly and helpful.

We flew with Avianca, some how they are not n sync, making the process a bit uncomfortable.

Unfortunately it was very disappointed experience. Our first flight our was delayed 2 hours, as a consequence we missed our connecting international flight. Customer server at Miami American Airlines was very disrespectful, gave us the worst replace itenarary for the next day that we had to spend 2 hours calling Gol to get a better itinerary otherwise we wouldn't make it on time to fulfill our trip purpose. We would have missed the reason to travel all the way to Brazil if we didn't change for a better itinerary. The worst thing is that our baggage was missing for 4 days. We had no cloths for all this time, plus the aggravation to locate our baggage. Nobody knew where our baggage was. We ended up picking it up at the airport when they said that they will bring them home. Unfortunately our experience was very dissatisfied.

Flight on time, check in and flight attendants courteous and helpful. Smaller plane for international flights, tight space, no comfortable.

The smell from the bathroom kept wafting through the cabin. It made people sick.

The flight was really crowded. Flight attendants were just ok.

Boarding delayed 20 minutes for no reason, no wifi, in flight entertainment, or snacks / waters?

Didn't get a seat assignment until the last minute even though i picked a seat.

American has been able to implement an algorithm that makes it possible for nearly every one of my evening flights to be late. Congratulations!

I was on a small regional flight from Detroit to Philadelphia. When we landed the outside cruise needed to turn something off with the engine, which took quite a long time. Then, when they allowed us to get off the plane it was outside. They took their time, unloading all the luggage and waited till they unloaded all the luggage before they brought it over to us. It was 9 o’clock at night freezing cold out, and there was no proactive hustle to try to get people their luggage. It was really one of the worst experiences I think I’ve ever had with American until a manager came over. I don’t think they were going to even consider pulling the luggage over to the people that had been waiting outside for at least 10 minutes in the freezing cold.

The flight was fine, once we got underway. It was more than hour delayed

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

Waited for oxygen tanks for 30 minutes after boarding was complete.

The seats are too uncomfortable for anyone over 5ft 8in. I'm 5'10" with a back and hip issue and I was in pai for the full duration of the flight.

Everything you need to know for your flight to South America

Information on your arrival and departure airports