$157 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 2/7. 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.
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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$595
Bogotá
Bogotá1 stop$553
Buenos Aires
Buenos Aires3 stops$988
Sao Paulo
Sao Paulo2 stops$591
Rio de Janeiro
Rio de Janeiro2 stops$744
Santiago
Santiago2 stops$809
Cartagena
Cartagena2 stops$442
Quito
Quito2 stops$502
Guayaquil
Guayaquil2 stops$525
Cali
Cali2 stops$431
Cusco
Cusco2 stops$1,039
Pereira
Pereira2 stops$580
Montevideo
Montevideo3 stops$970
Barranquilla
Barranquilla2 stops$596
Asuncion
Asuncion2 stops$1,482
Lima
Lima2 stops$595
Bogotá
Bogotá1 stop$553
Buenos Aires
Buenos Aires3 stops$988
Sao Paulo
Sao Paulo2 stops$591
Rio de Janeiro
Rio de Janeiro2 stops$744
Santiago
Santiago2 stops$809
Cartagena
Cartagena2 stops$442
Quito
Quito2 stops$502
Guayaquil
Guayaquil2 stops$525
Cali
Cali2 stops$431
Cusco
Cusco2 stops$1,039
Pereira
Pereira2 stops$580
Montevideo
Montevideo3 stops$970
Barranquilla
Barranquilla2 stops$596
Asuncion
Asuncion2 stops$1,482

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

Sat, Apr 18 - Fri, Apr 24
Multiple Airlines Logo
10:55 pm - 10:55 amSEA-MDE
34h 00m1 stop
Multiple Airlines Logo
3:15 am - 8:52 pmMDE-SEA
19h 37m2 stops
$434Multiple Airlines
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Sat, Apr 18 - Fri, Apr 24
Multiple Airlines Logo
10:55 pm - 10:55 amSEA-MDE
34h 00m1 stop
Multiple Airlines Logo
3:15 am - 8:52 pmMDE-SEA
19h 37m2 stops
$438Multiple Airlines
Find Deal
Wed, Apr 22 - Sun, May 3
United Airlines Logo
6:45 am - 7:20 pmSEA-BOG
10h 35m1 stop
United Airlines Logo
12:14 am - 7:12 pmBOG-SEA
20h 58m1 stop
$553United Airlines
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Mon, Feb 2 - Tue, Feb 3
United Airlines Logo
7:00 am - 11:05 pmSEA-BOG
13h 05m1 stop
United Airlines Logo
1:30 am - 9:12 pmBOG-SEA
22h 42m3 stops
$558United Airlines
Find Deal
Thu, Feb 26 - Tue, Mar 3
American Airlines Logo
12:59 am - 11:27 pmSEA-BOG
19h 28m1 stop
American Airlines Logo
8:00 am - 11:42 pmBOG-SEA
18h 42m1 stop
$565American Airlines
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Thu, Feb 26 - Tue, Mar 3
American Airlines Logo
12:59 am - 11:27 pmSEA-BOG
19h 28m1 stop
American Airlines Logo
8:00 am - 11:07 pmBOG-SEA
18h 07m2 stops
$570American Airlines
Find Deal
Tue, Apr 7 - Tue, Apr 21
LATAM Airlines Logo
7:20 am - 8:50 amSEA-GRU
21h 30m1 stop
LATAM Airlines Logo
8:30 pm - 10:24 amGRU-SEA
17h 54m1 stop
$598LATAM Airlines
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Sun, Mar 1 - Tue, Mar 10
Delta Logo
6:05 am - 9:35 amSEA-GRU
22h 30m1 stop
Delta Logo
9:00 pm - 2:45 pmGRU-SEA
21h 45m2 stops
$605Delta
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Wed, Jan 21 - Thu, Jan 29
LATAM Airlines Logo
11:55 am - 12:40 pmSEA-GRU
19h 45m2 stops
LATAM Airlines Logo
11:55 pm - 9:35 pmGRU-SEA
26h 40m2 stops
$607LATAM Airlines
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Sun, Jan 18 - Sat, Jan 24
Delta Logo
10:55 pm - 7:25 amSEA-GRU
27h 30m2 stops
Delta Logo
12:55 pm - 9:49 pmGRU-SEA
37h 54m1 stop
$612Delta
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 $1,229 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 5 weeks before departure, which saves you about 13% 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$157
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 30% 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 7998 reviews
8.1Boarding
7.9Entertainment
8.5Crew
7.9Comfort
7.3Food
Airline reviews

First, Delta needs more flights to/from Miami. Second, a 1000pm leaving at 1230pm is unacceptable from their biggest airport world hub. Another aircraft could have been used such as the aircraft scheduled to be used in the morning for that exact same route. Yes, I did get me there but the lack of sleep the next day didn't help me enjoy my entire trip since I was busy with activities during the weekend. This can be and is expected from Spirit (going bankrupt) and Frontier (despite they're nickel and dimers). But from Delta's World Hub? That's totally unacceptable!

2.0 MediocreAnonymous, Nov 2025ATL - TPA
Read more Delta reviews

First, Delta needs more flights to/from Miami. Second, a 1000pm leaving at 1230pm is unacceptable from their biggest airport world hub. Another aircraft could have been used such as the aircraft scheduled to be used in the morning for that exact same route. Yes, I did get me there but the lack of sleep the next day didn't help me enjoy my entire trip since I was busy with activities during the weekend. This can be and is expected from Spirit (going bankrupt) and Frontier (despite they're nickel and dimers). But from Delta's World Hub? That's totally unacceptable!

This flight was straightforward and without difficulty. Service was OK, but I continue to be underwhelmed by level of attention given to Sky Priority passengers.

It would’ve been nice for all that money to have a more substantial snack for free. I remember once upon a time getting a very nice turkey sandwich with Swiss cheese on whole wheat bread for no charge along with a drink. I guess those days are gone. it’s a little insulting being given a cookie or a bag of baked chips Going forward I’ll just bring my own.

Great. Seamless. Check in agent at kiosk international was amazing and extremely helpful.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Service in business class was not impressive. I ordered coffee with dinner and then watched other people get 2 refills before I got my 1 cup of coffee, and only after I pressed the attendant button overhead. Furthermore, the seats in the forward cabin need maintenance on this 737-800: the upholstery is detaching from the seat frame, at least on the backs of seats 1C, 1D.

Plenty of leg room, temperature was great and staff was excellent. Would do it more often.

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

Flight delayed then cancelled. Misplaced luggage. Still do not have. Rented car 1100 mile drive. I had to buy some overnight Hotels clothes toiletries gas food at my expense. Still not home. Not sure where luggage is. Over 4 hours on hold to Felta

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

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)

We had a five hour layover in the way home from Colombia. I read the "bout your flight" email carefully before we checked bags. We had to go through security right at the gate. Almost lost our ground coffee because that airport only allows 16 ounce of coffee and we had 18. I've been to 48 countries and never heard of a coffee restriction. I can't follow a rule I don't know about. I requested they bring our coffee to our checked luggage. Instead tey gate checked our bag for free. Back to planning transfers in Dallas I guess

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.

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.

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.

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.

Very nice flight love the small aircraft. We had a wonderful flight attendant. Nice to see someone that really enjoys her job. Don't have her name but had a southern accent.

This was an older airplane. The cabin was constantly warm to hot throughout the 10 hour flight and there were no vents to personalize air flow. Also since it was an older plane, the material and comfort of the chairs were very uncomfortable. I left my flight with major soreness on my tailbone.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.

Even though we were delayed, we were able to make our connection

Seats in waiting area and on plane hard as rock. Fast internet on the flight was great! Crew was kind.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

Older aircraft, no meal, only food was for purchase. Not impressed United.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Always wish for more healthy, gluten free options. We have to bring our own.

The flight was delayed multiple times, again no fault of American but again the extra cost, for everything makes it feel like a cheap airline! Especially when flights are outrageously expensive already

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

I had a positive experience on American. I'm blind and traveling with a guide dog and the flight attendants were so kind, friendly, and helpful towards us. They checked in on us during the flight and they made us feel comfortable and welcomed. There was an hour delay before depature, but overall the flight was a smooth ride. I appreciate that there were no issues on this long flight back home.

We were told the flight was delayed 5 times, then it was moved to the next day.

More choices on snacks. Built-in video screen to enjoy entertainment choices.

we landed at cmh ten minutes early but had to sit on tarmac for twenty minutes because a plane was at our gate despite the fact that 3 other gates were open.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

I have a gluten allergy so did have any food

I have a gluten allergy so didn't have any food

Loved the crew . Absolutely no complaints. Except for luggage lost

Everything you need to know for your flight to South America

Information on your arrival and departure airports