$262 Find Cheap Flights from Portland 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 Portland to South America departing on 8/26. 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 Portland to South America

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lima
Lima1 stop$760
Bogotá
Bogotá2 stops$591
Buenos Aires
Buenos Aires1 stop$967
Rio de Janeiro
Rio de Janeiro2 stops$1,077
Santiago
Santiago2 stops$988
Cartagena
Cartagena2 stops$778
Quito
Quito1 stop$672
Guayaquil
Guayaquil1 stop$681
Cali
Cali2 stops$819
Cusco
Cusco2 stops$1,126
Georgetown
Georgetown1 stop$1,036
Montevideo
Montevideo2 stops$1,486
Asuncion
Asuncion2 stops$1,518
Lima
Lima1 stop$760
Bogotá
Bogotá2 stops$591
Buenos Aires
Buenos Aires1 stop$967
Rio de Janeiro
Rio de Janeiro2 stops$1,077
Santiago
Santiago2 stops$988
Cartagena
Cartagena2 stops$778
Quito
Quito1 stop$672
Guayaquil
Guayaquil1 stop$681
Cali
Cali2 stops$819
Cusco
Cusco2 stops$1,126
Georgetown
Georgetown1 stop$1,036
Montevideo
Montevideo2 stops$1,486
Asuncion
Asuncion2 stops$1,518

Book Cheap Portland 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 Portland 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 Portland to South America

Mon, Aug 31 - Mon, Sep 7
Aeromexico Logo
7:10 am - 6:05 am
PDX
-
BOG
20h 55m
2 stops
Aeromexico Logo
1:05 am - 10:22 pm
BOG
-
PDX
23h 17m
2 stops
$591Aeromexico
Sun, Aug 2 - Tue, Aug 11
Aeromexico Logo
6:33 am - 11:50 pm
PDX
-
BOG
15h 17m
2 stops
Aeromexico Logo
1:05 am - 10:13 pm
BOG
-
PDX
23h 08m
2 stops
$598Aeromexico
Tue, Sep 8 - Wed, Sep 23
LATAM Airlines Logo
6:30 am - 10:10 pm
PDX
-
LIM
13h 40m
1 stop
LATAM Airlines Logo
12:50 am - 12:13 pm
LIM
-
PDX
13h 23m
1 stop
$760LATAM Airlines
Tue, Sep 8 - Wed, Sep 23
LATAM Airlines Logo
6:30 am - 10:10 pm
PDX
-
LIM
13h 40m
1 stop
LATAM Airlines Logo
12:15 am - 6:55 pm
LIM
-
PDX
20h 40m
2 stops
$764LATAM Airlines
Sun, Aug 16 - Wed, Aug 26
United Airlines Logo
4:07 pm - 9:10 pm
PDX
-
MDE
27h 03m
2 stops
United Airlines Logo
9:45 am - 10:51 pm
MDE
-
PDX
15h 06m
1 stop
$771United Airlines
Sun, Aug 16 - Wed, Aug 26
United Airlines Logo
7:13 am - 9:10 pm
PDX
-
MDE
11h 57m
1 stop
United Airlines Logo
9:45 am - 10:51 pm
MDE
-
PDX
15h 06m
1 stop
$776United Airlines
Thu, Jul 30 - Tue, Aug 4
American Airlines Logo
5:20 am - 11:48 pm
PDX
-
MDE
16h 28m
2 stops
American Airlines Logo
6:00 am - 11:08 pm
MDE
-
PDX
19h 08m
2 stops
$795American Airlines
Mon, Jul 13 - Mon, Jul 20
Delta Logo
5:37 pm - 4:00 pm
PDX
-
AEP
18h 23m
2 stops
Delta Logo
3:45 pm - 10:27 am
AEP
-
PDX
22h 42m
2 stops
$967Delta
Sun, Oct 25 - Mon, Nov 16
Delta Logo
5:10 pm - 6:05 am
PDX
-
EZE
32h 55m
2 stops
Delta Logo
8:05 pm - 11:50 am
EZE
-
PDX
20h 45m
1 stop
$976Delta
Sun, Nov 1 - Thu, Nov 19
American Airlines Logo
5:30 am - 9:25 am
PDX
-
GIG
22h 55m
2 stops
American Airlines Logo
11:55 pm - 7:15 pm
GIG
-
PDX
24h 20m
2 stops
$1,087American Airlines
Booking Insights

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

Get data-powered insights and trends into flights from Portland 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 Portland to South America?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland 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 Portland to South America is September, when tickets cost $84 (return) on average. On the other hand, the most expensive months are January and March, when the average cost of round-trip tickets is $678 and $674 respectively.

How far in advance should I book a flight from Portland 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 Portland 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 Portland to South America, you should book around 4 weeks before departure, which saves you about 28% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$262
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 24% increase in price.
Flight from Portland to Quito

FAQs - booking South America flights

  • How does KAYAK find such low prices on flights from Portland 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 Portland to South America.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Portland 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 Portland 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 Portland 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 Portland 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 Portland 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 4 airlines serving from Portland to South America

 
Need help choosing which airline to fly with from Portland 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 8458 reviews
7.9Comfort
7.2Food
8.1Boarding
8.5Crew
7.8Entertainment
Airline reviews

Much better than Latam, the worse airline company ever. I hope I don't have the need to fly Latam ever in my life again.

10.0 ExcellentIrmara, May 2026
MCO - BOS
Read more Delta reviews

Much better than Latam, the worse airline company ever. I hope I don't have the need to fly Latam ever in my life again.

Seats in Delta Main are unbelievably close to the seat in front of. Hard to get a backpack under the seat.

The flight was operated by Latam. The aircraft had a technical issue and the flight was delayed for the next day. They grounded other passengers to get their airplane assigned to my flight. Most of he ground staff don't speak English (Orlando Airport), but were very polite.The crew on the other hand could speak English and Portuguese. On board service was good.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

Honestly first time flying with delta and it was pretty good. All the process very smooth and crew was always nice and attentive.

Deleted flight made me loose my connection flight now stuck in Atlanta for a day

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

Latam wouldn’t tell me how much checked luggage would until I was at the airport and they charged me the highest price possible. Besides that, it was okay.

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

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.

we were missing our luggage, trying to find someone to have any empathy was pretty much not happening....

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

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Cree was organized and pleasant. Plane had good seating but as it’s a shuttle toilets hadn’t been thoroughly cleaned (eg. bins too full)

I liked that my son and I were reseated next to each other (we had different bookings). I liked that it was a directg flight and mostly on time. I liked that you provided pillows and blankets. Flight attendants were generally courteous. The messaging through wifi did not work well. The food was not good. Seats are very narrow and I felt slightly claustraphobic in the window seat.

Overall a good experience, but no wifi available for free or for purchase and we got wet from condensation or other water source during descent.

Some crew were unfriendly or in some cases just straight up rude.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Terrible, horrible, disappointing- without telling us they changed planes and moved and separated our seats to opposite sides - said they changed seats putting us together - got to airport to find no, they did not - we sat opposing sides of plane - food overly salty to inedible, never saw stewardess but once - it was terrible

not sure why you ask about food, I n3ver get food on flights except maybe cookies or pretzels. wifi was slow and in and out most of the flight not good.

The crew was very attentive through out the flight. Seats were comfortable, nice flight bag with pillow and blanket. Food was okay, since it was a overnight flight seemed to go by fast.

The flight attendant on my side of business class seemed like a novice and did not provide good service. Otherwise the flight was good and the entertainment system was very good. No free WiFi.

Cancelled BOYH legs of our flight home 30 min before initial boarding

Cancelled the flight half hour before boarding. Then cancelled the connecting flight too.

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

I would like a refund for the extra cost the seat I paid for. An oversized person sat next to me and I couldn’t fit on my seat and had to move to another seat.

Boarding gate at LAX was too crowded—two gates next to one another

The flight was delayed about an hour for a maintenance specialist to approve the maintenance repair

Everything you need to know for your flight to South America

Information on your arrival and departure airports