Cheap Flights from Portland (PDX) to Buenos Aires (BAI)

Popular airlines from Portland International Airport (PDX) to Buenos Aires (BAI)

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Frequently asked questions

How much does a flight from Portland Intl. Airport (PDX) to Buenos Aires (BAI) cost?
Secure a cheap one-way flight or cheap return flight from Portland Intl. Airport (PDX) to Buenos Aires (BAI) 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 Buenos Aires (BAI)?
is the cheapest month to fly from PDX to BAI. Traveling during quieter months is often the key to scoring lower fares.
What is the cheapest airline that flies from Portland Intl. Airport (PDX) to Buenos Aires (BAI)?
To find the cheapest airline flying from PDX to BAI, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Portland Intl. Airport (PDX) to Buenos Aires (BAI)?
Direct flights from Portland Intl. Airport (PDX) to Buenos Aires (BAI) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from PDX to BAI?
Typically you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can change depending on the time of year, carrier and other factors.*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 Buenos Aires (BAI)?
Choose a flight from Portland Intl. Airport (PDX) to Buenos Aires (BAI) that leaves before 3 PM to reduce the risk of cancellations. Departures after this hour 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 Buenos Aires (BAI) last-minute?
Last-minute bookings from PDX to BAI are usually more expensive. For the best prices, start searching for flights early. That said, if you can play around with your travel dates, it's possible to score a cheap fare right before your trip.
Is it cheaper to book a PDX to BAI flight and hotel package?
Compared with arranging hotels and flights separately, booking a PDX to BAI flight and hotel package with Expedia could result in significant savings. What's more, having everything in one convenient place will take the hassle out of travel planning. Simply pick your flights and select from our wide range of hotels, then tailor your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Portland Intl. Airport (PDX) to Buenos Aires (BAI)?
It's usually possible to cancel or reschedule your PDX to BAI flight. However, for bookings made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Travel information

Origin airport
Portland Intl.
Destination airport
Buenos Aires
Distance
3423 mi

Book with confidence

Book with confidence

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 . 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 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.

 

Portland to Buenos Aires Flights
*Available to One Key members.