PDX - BUE

$519 Find Cheap Flights from Portland to Buenos Aires

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 Buenos Aires departing on 6/29. 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 Buenos Aires

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Buenos Aires, 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 Portland to Buenos Aires, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$947
LATAM Airlines
Tue 6/9Tue 6/23
PDX - AEP • 2 stops
Cheapest one-way
$519
Multiple Airlines
Mon 6/29
PDX - EZE • 3 stops
Top airlines
Cheapest • from $947 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Portland and Buenos Aires. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $1,335 (round-trip)
Shortest trip • 15h 40m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 72% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Buenos Aires!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Portland to Buenos Aires (PDX-BUE)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Buenos Aires 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 Buenos Aires

Tue, Jun 9 - Tue, Jun 23
LATAM Airlines Logo
1:25 pm - 4:00 pm
PDX
-
AEP
22h 35m
2 stops
LATAM Airlines Logo
8:05 pm - 12:25 pm
AEP
-
PDX
20h 20m
2 stops
$947LATAM Airlines
Tue, Jun 9 - Tue, Jun 23
LATAM Airlines Logo
11:40 am - 9:40 am
PDX
-
EZE
18h 00m
2 stops
LATAM Airlines Logo
8:30 pm - 12:25 pm
EZE
-
PDX
19h 55m
2 stops
$951LATAM Airlines
Mon, Jun 8 - Mon, Jun 22
Delta Logo
6:35 am - 9:40 am
PDX
-
EZE
23h 05m
2 stops
Delta Logo
7:35 am - 12:25 pm
EZE
-
PDX
32h 50m
2 stops
$959Delta
Mon, Jun 8 - Mon, Jun 22
Delta Logo
1:25 pm - 4:00 pm
PDX
-
AEP
22h 35m
2 stops
Delta Logo
8:40 am - 12:25 pm
AEP
-
PDX
31h 45m
2 stops
$959Delta
Thu, Jun 11 - Thu, Jun 18
LATAM Airlines Logo
10:53 am - 11:30 am
PDX
-
EZE
20h 37m
2 stops
LATAM Airlines Logo
7:35 am - 10:30 am
EZE
-
PDX
30h 55m
2 stops
$967LATAM Airlines
Wed, May 20 - Wed, May 27
LATAM Airlines Logo
6:50 am - 8:30 am
PDX
-
AEP
21h 40m
2 stops
LATAM Airlines Logo
7:20 pm - 12:36 pm
AEP
-
PDX
21h 16m
2 stops
$967LATAM Airlines
Thu, Jun 11 - Thu, Jun 18
Multiple Airlines Logo
2:10 pm - 9:45 am
PDX
-
EZE
15h 35m
1 stop
Multiple Airlines Logo
10:40 pm - 12:22 am
EZE
-
PDX
29h 42m
2 stops
$987Multiple Airlines
Tue, Aug 4 - Tue, Aug 18
United Airlines Logo
11:16 am - 8:00 am
PDX
-
EZE
40h 44m
2 stops
United Airlines Logo
9:00 pm - 5:43 pm
EZE
-
PDX
24h 43m
2 stops
$991United Airlines
Thu, Jun 11 - Thu, Jun 18
Multiple Airlines Logo
6:35 am - 9:20 am
PDX
-
EZE
22h 45m
2 stops
Multiple Airlines Logo
10:40 pm - 12:22 am
EZE
-
PDX
29h 42m
2 stops
$992Multiple Airlines
Tue, Jun 9 - Tue, Jun 23
United Airlines Logo
7:13 am - 8:00 am
PDX
-
EZE
20h 47m
1 stop
United Airlines Logo
9:00 pm - 7:18 pm
EZE
-
PDX
26h 18m
1 stop
$1,017United Airlines
Booking Insights

KAYAK's insights & trends for Portland to Buenos Aires flights

Get data-powered insights and trends into flights from Portland to Buenos Aires to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Portland to Buenos Aires?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Portland to Buenos Aires departing in June.

What is the cheapest month to fly from Portland to Buenos Aires?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Buenos Aires, 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 Buenos Aires is July, where tickets cost $248 (return) on average. On the other hand, the most expensive months are June and September, where the average cost of round-trip tickets is $1,286 and $1,179 respectively.

Good to know

Low seasonMarch
Cheapest flight$519
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Portland to Buenos Aires Ministro Pistarini

When to book flights from Portland to Buenos Aires

Are your dates flexible? Find out the best times to travel from Portland to Buenos Aires 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 Portland to Buenos Aires

  • What is the cheapest flight from Portland to Buenos Aires?

    In the last 3 days, the lowest price for a flight from Portland to Buenos Aires was $519 for a one-way ticket and $947 for a round-trip.

  • Do I need a passport to fly between Portland and Buenos Aires?

    Yes, you’ll need a passport to travel to Buenos Aires from Portland.

  • Which aircraft models fly most regularly from Portland to Buenos Aires?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Portland to Buenos Aires?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Portland and Buenos Aires, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Portland to Buenos Aires, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Portland to Buenos Aires are Delta and United Airlines. With an average price for the route of $1,264 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $1,328 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Portland to Buenos Aires?

    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 Buenos Aires.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Buenos Aires from Portland 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 Buenos Aires?

    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 Buenos Aires with an airline and back to Portland with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Buenos Aires?

    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 Buenos Aires from Portland 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 Buenos Aires

 
See real verified KAYAK customer reviews for airlines flying from Portland to Buenos Aires. 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 Portland to Buenos Aires? 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 8466 reviews
8.1Boarding
7.9Comfort
8.5Crew
7.8Entertainment
7.2Food
Airline reviews

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.

6.0 GoodSilvestre, Apr 2026
MCO - GRU
Read more Delta reviews

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.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

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’s crews are fine, but God help you if you need any customer service. Their app and website never work, with error after error. Trying to solve anything over the phone is painful, and lastly, the boarding pass LATAM gave me to board the flight with Delta was invalid and I had to purchase an emergency one-way ticket at the last minute to get home.

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

Good flight, boarding ok and crew very nice. Flight was not full so I was able to be very comfortable. Blanket and pillow provided with was good as it was very cold during the flight . Food was very good(small snack sandwich and an excellent piece of orange cake). Overall good flight, no complaints.

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.

Poor, the airline was not able to help me move flights.

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

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.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

United Airline crews were very friendly and very attentive. 12 hours flight was gone like in a shorter one.

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

Food was surprisingly delicious. Space in the seat is horrible when the seating front is reclined. Movie offerings were terrible. Crew was friendly and helpful.

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

This flight was delayed but it worked in my favor because my Atlanta to Dallas flight was delayed.

This was a hard flight. 3 delays out of OKC (1 on the Tarmac). Delay in Atlanta coming to Dallas. total travel time was the equivalent of driving from OKC to Atlanta.

Like: flights are on time, good boarding process Can improve: planes are old, improve entertainment and make space more comfortable

Had to wait for a gate for a long time, then waited on the run way for a long time before leaving. The actual flights part was good.

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

Flying in the United States with the major airlines has become so underwhelming. A 2-3hr flight in most other parts of the world with the major carriers of the area comes with newer, CLEANER aircraft and significantly better in flight service in terms of both staff attitude and a actual meal service.

Everything you need to know for your flight from Portland to Buenos Aires

Information on your arrival and departure airports