$574 Cheap Flights from Portland (PDX) to Asuncion (ASU)

View $574 flight on Tue, Oct 21, 2025Opens in a new window

Popular airlines from Portland International Airport (PDX) to Asuncion (ASU-Silvio Pettirossi Intl.)

Cheap Flights from Portland to Asuncion (PDX-ASU)

Prices were available within the past 7 days and start at $574 for one-way flights and $1,132 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Oct 15 - Wed, Oct 22
PDX
Portland
ASU
Asuncion
$1,132 Roundtrip, found 5 days ago
$1,132
Roundtrip
found 5 days ago
Select United flight, departing Wed, Oct 15 from Portland to Asuncion, returning Wed, Oct 22, priced at $1,132 found 5 days ago
United
Tue, Oct 21 - Thu, Oct 30
PDX
Portland
ASU
Asuncion
$1,158 Roundtrip, found 2 days ago
$1,158
Roundtrip
found 2 days ago
Select United flight, departing Tue, Oct 21 from Portland to Asuncion, returning Thu, Oct 30, priced at $1,158 found 2 days ago
Alaska Airlines
Thu, Oct 30 - Thu, Nov 6
PDX
Portland
ASU
Asuncion
$1,238 Roundtrip, found 6 days ago
$1,238
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Thu, Oct 30 from Portland to Asuncion, returning Thu, Nov 6, priced at $1,238 found 6 days ago
Copa
Tue, Oct 21 - Thu, Oct 30
PDX
Portland
ASU
Asuncion
$1,268 Roundtrip, found 2 days ago
$1,268
Roundtrip
found 2 days ago
Select Copa flight, departing Tue, Oct 21 from Portland to Asuncion, returning Thu, Oct 30, priced at $1,268 found 2 days ago
Copa
Wed, Oct 15 - Wed, Oct 22
PDX
Portland
ASU
Asuncion
$1,281 Roundtrip, found 5 days ago
$1,281
Roundtrip
found 5 days ago
Select Copa flight, departing Wed, Oct 15 from Portland to Asuncion, returning Wed, Oct 22, priced at $1,281 found 5 days ago
Copa
Tue, Oct 21 - Thu, Oct 30
PDX
Portland
ASU
Asuncion
$1,288 Roundtrip, found 2 days ago
$1,288
Roundtrip
found 2 days ago
Select Copa flight, departing Tue, Oct 21 from Portland to Asuncion, returning Thu, Oct 30, priced at $1,288 found 2 days ago
Alaska Airlines
Thu, Oct 30 - Thu, Nov 6
PDX
Portland
ASU
Asuncion
$1,296 Roundtrip, found 6 days ago
$1,296
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Thu, Oct 30 from Portland to Asuncion, returning Thu, Nov 6, priced at $1,296 found 6 days ago
United
Tue, Oct 21 - Thu, Oct 30
PDX
Portland
ASU
Asuncion
$1,314 Roundtrip, found 2 days ago
$1,314
Roundtrip
found 2 days ago
Select United flight, departing Tue, Oct 21 from Portland to Asuncion, returning Thu, Oct 30, priced at $1,314 found 2 days ago
LATAM Airlines Group
Mon, Mar 9 - Mon, Mar 16
PDX
Portland
ASU
Asuncion
$1,340 Roundtrip, found 12 hours ago
$1,340
Roundtrip
found 12 hours ago
Select LATAM Airlines Group flight, departing Mon, Mar 9 from Portland to Asuncion, returning Mon, Mar 16, priced at $1,340 found 12 hours ago
Delta
Sat, Mar 21 - Tue, Apr 7
PDX
Portland
ASU
Asuncion
$1,360 Roundtrip, found 1 day ago
$1,360
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Mar 21 from Portland to Asuncion, returning Tue, Apr 7, priced at $1,360 found 1 day ago

Frequently asked questions

How much does a flight from Portland Intl. Airport (PDX) to Silvio Pettirossi Intl. Airport (ASU) cost?
Secure a cheap one-way flight from $574 or cheap return flight from $1,132 from Portland Intl. Airport (PDX) to Silvio Pettirossi Intl. Airport (ASU) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Portland Intl. Airport (PDX) to Silvio Pettirossi Intl. Airport (ASU)?
October is the least expensive month to fly from PDX to ASU. Traveling during quieter months is often the key to finding better deals on flights.
What is the cheapest airline that flies from Portland Intl. Airport (PDX) to Silvio Pettirossi Intl. Airport (ASU)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from PDX to ASU. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from Portland Intl. Airport (PDX) to Silvio Pettirossi Intl. Airport (ASU)?
There are no daily nonstop flights departing from Portland Intl. Airport (PDX) to Silvio Pettirossi Intl. Airport (ASU). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from PDX to ASU?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*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 Silvio Pettirossi Intl. Airport (ASU)?
Select a flight from Portland Intl. Airport (PDX) to Silvio Pettirossi Intl. Airport (ASU) that leaves before 3 PM to reduce the risk of cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**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 Silvio Pettirossi Intl. Airport (ASU) last-minute?
Booking your flight from PDX to ASU right before your journey is generally more expensive. However, if you're flexible with your departure dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book a PDX to ASU flight and hotel package?
Securing a PDX to ASU flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Pick from our wide range of accommodations and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Portland Intl. Airport (PDX) to Silvio Pettirossi Intl. Airport (ASU)?
If you reserved your PDX to ASU flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond this timeframe. 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.

Travel information

Travel information

Origin airport
Portland Intl.
Destination airport
Silvio Pettirossi Intl.
Airlines serving
Copa, GOL Linhas Aereas S.A., LATAM Airlines Group, United
Roundtrip price
$1,131
Distance
6367 mi

Book with confidence

Book with confidence

Portland to Asuncion Flights

The cheapest times to fly from Portland to Asuncion

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 Asuncion are during the month of October. You can find some of the cheapest flights from Portland to Asuncion with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Portland to Asuncion

Sunday is one of the best days to book for cheap flights from Portland to Asuncion: 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 Asuncion

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 Asuncion in 2025. You can also book with separate airlines for your outbound and return journeys, from $574 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 Asuncion 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 Asuncion 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 Asuncion Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.