$391 Cheap Flights from Portland (PDX) to Buenos Aires (EZE)

View $391 flight on Mon, Oct 20, 2025Opens in a new window

Popular airlines from Portland International Airport (PDX) to Ministro Pistarini Intl. Airport (EZE)

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

Prices were available within the past 7 days and start at $391 for one-way flights and $902 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Jan 14 - Wed, Feb 4
PDX
Portland
EZE
Buenos Aires
$902 Roundtrip, found 8 hours ago
$902
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Wed, Jan 14 from Portland to Buenos Aires, returning Wed, Feb 4, priced at $902 found 8 hours ago
Delta
Tue, Oct 21 - Wed, Nov 5
PDX
Portland
EZE
Buenos Aires
$902 Roundtrip, just found
$902
Roundtrip
just found
Select Delta flight, departing Tue, Oct 21 from Portland to Buenos Aires, returning Wed, Nov 5, priced at $902 just found
United
Wed, Oct 22 - Wed, Oct 29
PDX
Portland
EZE
Buenos Aires
$902 Roundtrip, found 3 hours ago
$902
Roundtrip
found 3 hours ago
Select United flight, departing Wed, Oct 22 from Portland to Buenos Aires, returning Wed, Oct 29, priced at $902 found 3 hours ago
United
Wed, Oct 22 - Wed, Oct 29
PDX
Portland
EZE
Buenos Aires
$906 Roundtrip, found 3 hours ago
$906
Roundtrip
found 3 hours ago
Select United flight, departing Wed, Oct 22 from Portland to Buenos Aires, returning Wed, Oct 29, priced at $906 found 3 hours ago
American Airlines
Wed, Jan 14 - Wed, Feb 4
PDX
Portland
EZE
Buenos Aires
$913 Roundtrip, found 8 hours ago
$913
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Wed, Jan 14 from Portland to Buenos Aires, returning Wed, Feb 4, priced at $913 found 8 hours ago
United
Sun, Jan 25 - Thu, Feb 12
PDX
Portland
EZE
Buenos Aires
$914 Roundtrip, found 1 day ago
$914
Roundtrip
found 1 day ago
Select United flight, departing Sun, Jan 25 from Portland to Buenos Aires, returning Thu, Feb 12, priced at $914 found 1 day ago
Delta
Mon, Oct 20 - Mon, Nov 3
PDX
Portland
EZE
Buenos Aires
$915 Roundtrip, found 5 hours ago
$915
Roundtrip
found 5 hours ago
Select Delta flight, departing Mon, Oct 20 from Portland to Buenos Aires, returning Mon, Nov 3, priced at $915 found 5 hours ago
Alaska Airlines
Tue, Dec 2 - Wed, Dec 17
PDX
Portland
EZE
Buenos Aires
$917 Roundtrip, found 2 days ago
$917
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Dec 2 from Portland to Buenos Aires, returning Wed, Dec 17, priced at $917 found 2 days ago
American Airlines
Mon, Jan 26 - Tue, Feb 10
PDX
Portland
EZE
Buenos Aires
$917 Roundtrip, found 5 days ago
$917
Roundtrip
found 5 days ago
Select American Airlines flight, departing Mon, Jan 26 from Portland to Buenos Aires, returning Tue, Feb 10, priced at $917 found 5 days ago
LATAM Airlines Group
Tue, Oct 21 - Sun, Oct 26
PDX
Portland
EZE
Buenos Aires
$932 Roundtrip, found 5 hours ago
$932
Roundtrip
found 5 hours ago
Select LATAM Airlines Group flight, departing Tue, Oct 21 from Portland to Buenos Aires, returning Sun, Oct 26, priced at $932 found 5 hours ago

Find the cheapest month to fly from Portland (PDX) to Buenos Aires (EZE)

October is typically the cheapest month to fly

From $1,033 - $1,732 per traveler.

Alternative airports near Buenos Aires

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ministro Pistarini Intl. EZE. Cheapest option available. Average driving time to city center is 25 minutes. Flights from $902
EZE
Ministro Pistarini Intl.
Cheapest
Average driving time to city center25 min
Flights from $902
Flights from Portland (PDX) to Buenos Aires (EZE)
Origin airport
Portland Intl.
Destination airport
Ministro Pistarini Intl.
Airlines serving
Aeromexico, Air Canada, American Airlines, Copa, Delta, LATAM Airlines Group, United
Roundtrip price
$901
Distance
6839 mi

Portland to Buenos Aires Flights

The cheapest times to fly from Portland to Buenos Aires

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Portland to Buenos Aires are during the month of January. You can find some of the cheapest flights from Portland to Buenos Aires with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Portland to Buenos Aires

Sunday is one of the best days to book for cheap flights from Portland to Buenos Aires: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Portland to Buenos Aires

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Portland to Buenos Aires in 2025. You can also book with separate airlines for your outbound and return journeys, from $391 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Portland to Buenos Aires flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Portland to Buenos Aires airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Portland Intl. Airport (PDX) to Ministro Pistarini Intl. Airport (EZE) cost?
Snag a cheap one-way flight from $391 or cheap return flight from $902 from Portland Intl. Airport (PDX) to Ministro Pistarini Intl. Airport (EZE) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Portland Intl. Airport (PDX) to Ministro Pistarini Intl. Airport (EZE)?
Planning your getaway for January may help you find better deals, as it's the cheapest month for flights between PDX and EZE. You'll usually find the lowest prices during the off-season.
What is the cheapest airline that flies from Portland Intl. Airport (PDX) to Ministro Pistarini Intl. Airport (EZE)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest PDX to EZE flight.
How many flights per day from Portland Intl. Airport (PDX) to Ministro Pistarini Intl. Airport (EZE)?
You'll have to catch a flight with a layover when traveling from Portland Intl. Airport (PDX) to Ministro Pistarini Intl. Airport (EZE). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from PDX to EZE?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Portland Intl. Airport (PDX) to Ministro Pistarini Intl. Airport (EZE)?
Select a flight from Portland Intl. Airport (PDX) to Ministro Pistarini Intl. Airport (EZE) that takes off before 3 PM to reduce the risk of cancellations. Departures after this time are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Portland Intl. Airport (PDX) to Ministro Pistarini Intl. Airport (EZE) last-minute?
Booking your flight from PDX to EZE right before your getaway is usually more expensive. But if there's some wiggle room with your travel times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book a PDX to EZE flight and hotel package?
Compared with arranging flights and hotels separately, booking a PDX to EZE flight and hotel package with Expedia could lead to significant savings. Better yet, having it all in one place takes the hassle out of planning your trip. Simply pick your flights and select from our wide range of hotels, then tailor your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Portland Intl. Airport (PDX) to Ministro Pistarini Intl. Airport (EZE)?
If you booked your PDX to EZE flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

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*Available to One Key members.