$158 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 1/29. 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 South America

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to South America

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lima
Lima1 stop$832
Bogotá
Bogotá2 stops$553
Buenos Aires
Buenos Aires2 stops$925
Sao Paulo
Sao Paulo1 stop$600
Rio de Janeiro
Rio de Janeiro2 stops$796
Santiago
Santiago1 stop$787
Cartagena
Cartagena1 stop$430
Quito
Quito3 stops$509
Guayaquil
Guayaquil2 stops$608
Cali
Cali1 stop$554
Cusco
Cusco3 stops$803
Pereira
Pereira2 stops$1,135
Montevideo
Montevideo2 stops$887
Barranquilla
Barranquilla2 stops$556
Florianopolis
Florianopolis2 stops$850
Lima
Lima1 stop$832
Bogotá
Bogotá2 stops$553
Buenos Aires
Buenos Aires2 stops$925
Sao Paulo
Sao Paulo1 stop$600
Rio de Janeiro
Rio de Janeiro2 stops$796
Santiago
Santiago1 stop$787
Cartagena
Cartagena1 stop$430
Quito
Quito3 stops$509
Guayaquil
Guayaquil2 stops$608
Cali
Cali1 stop$554
Cusco
Cusco3 stops$803
Pereira
Pereira2 stops$1,135
Montevideo
Montevideo2 stops$887
Barranquilla
Barranquilla2 stops$556
Florianopolis
Florianopolis2 stops$850

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

Wed, Dec 10 - Wed, Dec 17
Multiple Airlines Logo
10:26 pm - 2:14 pmSEA-MDE
12h 48m1 stop
Multiple Airlines Logo
3:10 pm - 10:45 amMDE-SEA
22h 35m1 stop
$424Multiple Airlines
Find Deal
Wed, Dec 10 - Tue, Dec 16
Multiple Airlines Logo
10:26 pm - 2:14 pmSEA-MDE
12h 48m1 stop
Multiple Airlines Logo
2:05 am - 10:29 pmMDE-SEA
23h 24m1 stop
$425Multiple Airlines
Find Deal
Wed, Mar 11 - Fri, Mar 20
United Airlines Logo
7:00 am - 5:10 amSEA-BOG
20h 10m2 stops
United Airlines Logo
1:30 am - 12:20 pmBOG-SEA
12h 50m1 stop
$553United Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
Delta Logo
6:00 am - 7:30 pmSEA-BOG
11h 30m1 stop
Delta Logo
11:00 pm - 12:16 amBOG-SEA
27h 16m2 stops
$554Delta
Find Deal
Tue, Mar 10 - Wed, Mar 11
Delta Logo
6:00 am - 7:30 pmSEA-BOG
11h 30m1 stop
Delta Logo
11:00 pm - 12:16 amBOG-SEA
27h 16m2 stops
$556Delta
Find Deal
Fri, Feb 13 - Fri, Feb 20
United Airlines Logo
2:20 pm - 10:35 pmSEA-BOG
29h 15m1 stop
United Airlines Logo
1:30 am - 6:03 pmBOG-SEA
19h 33m2 stops
$565United Airlines
Find Deal
Mon, Nov 17 - Fri, Nov 21
American Airlines Logo
12:41 am - 11:30 pmSEA-BOG
19h 49m1 stop
American Airlines Logo
11:55 pm - 9:16 pmBOG-SEA
24h 21m1 stop
$588American Airlines
Find Deal
Tue, Nov 18 - Fri, Nov 21
LATAM Airlines Logo
10:15 pm - 7:30 pmSEA-BOG
18h 15m2 stops
LATAM Airlines Logo
3:55 pm - 10:26 amBOG-SEA
21h 31m2 stops
$599LATAM Airlines
Find Deal
Tue, Jan 20 - Mon, Feb 2
American Airlines Logo
10:00 am - 8:50 amSEA-GRU
17h 50m2 stops
American Airlines Logo
12:15 am - 3:34 pmGRU-SEA
20h 19m2 stops
$602American Airlines
Find Deal
Wed, Nov 26 - Sun, Dec 7
LATAM Airlines Logo
6:00 am - 7:30 pmSEA-BOG
10h 30m1 stop
LATAM Airlines Logo
10:55 am - 11:58 pmBOG-SEA
16h 03m2 stops
$616LATAM Airlines
Find Deal
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 August, when tickets cost $920 (return) on average. On the other hand, the most expensive months are July and May, when the average cost of round-trip tickets is $1,224 and $1,088 respectively.

What’s the cheapest day of the week to fly from Seattle to South America?

The average price of all round-trip flights from Seattle to South America clicked on KAYAK for each day over the last 12 months.

When flying from Seattle to South America, you should consider leaving on a Tuesday and avoid Sundays if you are looking for the best rates. For your return to Seattle, you’ll find the best rates on Sundays and the most expensive ones on Saturdays.

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 15% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$158
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 26% 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.

  • What is the cheapest time of day to fly to South America?

    The cheapest time of day to fly to South America is generally in the evening, when round-trip flights cost $883 on average. Morning departures are around 4% more expensive than evening flights, on average. The most expensive time of day to fly to South America is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,010.

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 8004 reviews
8.5Crew
7.3Food
8.2Boarding
7.9Entertainment
7.9Comfort
Airline reviews

I truly love flying with Delta. They have always treated me with the upmost respect

10.0 ExcellentMAYRA, Nov 2025JFK - MIA
Read more Delta reviews

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The aircraft interior is old and tired on this aircraft. The entertainment system never worked despite the crews attempt to reset the system.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Old plane and old configuration/seats but still comfortable for a morning flight

Very strict carry on rules meant most of the plane had to gate check their luggage. As is often the case had things that were broken because of this, but I appreciated not being charged to gate check. Otherwise good flight and great crew once on the plane

Some of the Air hostesses are not that friendly. Need improvement

I liked the meatloaf the chicken was awful but the plane was on time and got there and the staff was nice.

Boarding was quick & efficient; they gave boarding groups due priority; staff & air crew were very cordial and helpful, pleasant flight.

As always, Copa Airlines is great to fly on. The flights are always on time, the staff are pleasant and helpful and it's always a wonderful flying experience.

horrible service, food was an embarrassment, no charging for cellphones, stay away

Very happy with my flight. I would definitely recommend it.

Did upgrade, travel in business it was great (more room I could sleep)

Tell people to remain in their seats during the meal/beverage distribution. Enforce boarding by group numbers. No one was checking. Tell people to turn their electronics speakers off. Bigger cups for drinks.

Enforce the boarding process by group numbers. Tell people to stay seated during the meal/drink distribution. It took forever to get food and drinks because people would not stay out the isle and let the crew do their jobs. Everyone wanted to go to the bathroom forcing the crew to enter and leave the isle constantly so people can pass. Tell people to keep their electronics off speaker mode. No one wants to hear phone conversations and music playing.

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.

The plane broke down at the Lima stopover and they offered to put me on a flight the be t day but I had to be back in LA that morning and so I had to buy another ticket from Avianca and United for $2k I asked LATAM for compensation and received none. Very bad experience

The flight was late. Please do not delay next time.

I couldn't travel, now I can't get a refund and to change the date I have to pay an absurd fine.

Boarding was confusing with a delayed flight because there was no English translation

My biggest complaint is the comfort. I am not tall and there was no legroom. It was very uncomfortable. During my transfer in Sao Paola, the flight was slightly delayed so boarding was confusing because there were no instructions in English.

Horrible the worst airlines I have ever flown. Cancelled flight with no choices and when contacted them they were not helpful

I never got this flight. You sent me to Chile!!! And from Chile I got the other flight to São Paulo... I've arrived 7h latter than I was supposed to arrive because of Delta delays.

Because the flight was late, we lost the connection to Brazil. You, Delta delayed, and you Delta anticipated the door closing in 15 min from Miami to GRU. Why? It caused a lot of stress! I almost could not see my mother in law alive because of your delay.

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

My experience on this United Airlines flight was highly uncomfortable, primarily due to two issues: Cabin Temperature: The temperature on the Boeing 737 MAX 8 was unacceptably high, feeling consistently around 80 degrees throughout the flight. This made sleeping impossible and significantly detracted from the experience. Seating Arrangement: Being stuck in a middle seat for a six-and-a-half-hour overnight flight compounded the discomfort. Moving forward, I will always purchase a seat assignment to avoid this situation.

Premium Plus is a really good idea for longer flights

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

The person I bought the ticket for didn’t make the flight.

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

We loved the steward on the plane. He made the night enjoyable

I enjoyed the extra leg room compared to other airlines. The first stewards made my daughter’s birthday special by giving her an extra snack. Then the last one coming home from Chicago to Appleton made our night really enjoyable Thanks for making our trip enjoyable

The flight was smooth, the pilot kept us informed about delays and we arrived more of less on time

Flight delay was communicated before leaving for airport which caused it to be a non-event. Great flight and crew!

Did not get any refreshments. Crew was very nice but limited. Small seats

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

Wish a flight with more than 2 hours with some snack rather than just cookie/biscuit.

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

Flight was delayed leaving Dallas. Arrived about 2 hours later than scheduled.

Everything you need to know for your flight to South America

Information on your arrival and departure airports