$427 Cheap Flights from Portland (PDX) to Seoul (ICN)

View $427 flight on Sat, Dec 6, 2025Opens in a new window

Popular airlines from Portland International Airport (PDX) to Incheon Intl. Airport (ICN)

Cheap Flights from Portland to Seoul (PDX-ICN)

Prices were available within the past 7 days and start at $427 for one-way flights and $816 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Thu, Jan 8 - Sun, Feb 1
PDX
Portland
ICN
Seoul
$816 Roundtrip, found 12 hours ago
$816
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Thu, Jan 8 from Portland to Seoul, returning Sun, Feb 1, priced at $816 found 12 hours ago
Alaska Airlines
Thu, Jan 8 - Fri, Feb 6
PDX
Portland
ICN
Seoul
$816 Roundtrip, found 1 hour ago
$816
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Thu, Jan 8 from Portland to Seoul, returning Fri, Feb 6, priced at $816 found 1 hour ago
Alaska Airlines
Sun, Apr 5 - Mon, Apr 20
PDX
Portland
ICN
Seoul
$821 Roundtrip, found 12 hours ago
$821
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Sun, Apr 5 from Portland to Seoul, returning Mon, Apr 20, priced at $821 found 12 hours ago
Air Canada
Fri, Dec 12 - Sun, Dec 28
PDX
Portland
ICN
Seoul
$823 Roundtrip, found 12 hours ago
$823
Roundtrip
found 12 hours ago
Select Air Canada flight, departing Fri, Dec 12 from Portland to Seoul, returning Sun, Dec 28, priced at $823 found 12 hours ago
Alaska Airlines
Sun, Apr 5 - Mon, Apr 20
PDX
Portland
ICN
Seoul
$827 Roundtrip, found 12 hours ago
$827
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Sun, Apr 5 from Portland to Seoul, returning Mon, Apr 20, priced at $827 found 12 hours ago
Air Canada
Wed, Nov 5 - Mon, Nov 17
PDX
Portland
ICN
Seoul
$837 Roundtrip, found 9 hours ago
$837
Roundtrip
found 9 hours ago
Select Air Canada flight, departing Wed, Nov 5 from Portland to Seoul, returning Mon, Nov 17, priced at $837 found 9 hours ago
Air Canada
Wed, Nov 5 - Mon, Dec 1
PDX
Portland
ICN
Seoul
$841 Roundtrip, found 21 hours ago
$841
Roundtrip
found 21 hours ago
Select Air Canada flight, departing Wed, Nov 5 from Portland to Seoul, returning Mon, Dec 1, priced at $841 found 21 hours ago
Hawaiian Airlines
Wed, Nov 26 - Fri, Dec 5
PDX
Portland
ICN
Seoul
$853 Roundtrip, found 16 hours ago
$853
Roundtrip
found 16 hours ago
Select Hawaiian Airlines flight, departing Wed, Nov 26 from Portland to Seoul, returning Fri, Dec 5, priced at $853 found 16 hours ago
United
Tue, Dec 9 - Fri, Dec 26
PDX
Portland
ICN
Seoul
$853 Roundtrip, found 14 hours ago
$853
Roundtrip
found 14 hours ago
Select United flight, departing Tue, Dec 9 from Portland to Seoul, returning Fri, Dec 26, priced at $853 found 14 hours ago
American Airlines
Thu, Dec 4 - Thu, Dec 18
PDX
Portland
ICN
Seoul
$882 Roundtrip, found 1 day ago
$882
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Dec 4 from Portland to Seoul, returning Thu, Dec 18, priced at $882 found 1 day ago

Find the cheapest month to fly from Portland (PDX) to Seoul (ICN)

September is typically the cheapest month to fly

From $792 - $1,069 per traveler.

Alternative airports near Seoul

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

Select flight to Gimpo Intl. GMP. Closest option available. Average driving time to city center is 20 minutes. Flights from $2,398
GMP
Gimpo Intl.
Closest
Average driving time to city center20 min
Flights from $2,398

Frequently asked questions

How much does a flight from Portland Intl. Airport (PDX) to Incheon Intl. Airport (ICN) cost?
Get a cheap one-way flight from $427 or cheap return flight from $816 from Portland Intl. Airport (PDX) to Incheon Intl. Airport (ICN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Portland Intl. Airport (PDX) to Incheon Intl. Airport (ICN)?
Planning your getaway for January can help you save, as it's the cheapest month for flights between PDX and ICN. You'll usually find the lowest prices during off-peak months.
What is the cheapest airline that flies from Portland Intl. Airport (PDX) to Incheon Intl. Airport (ICN)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest PDX to ICN flight.
How many flights per day from Portland Intl. Airport (PDX) to Incheon Intl. Airport (ICN)?
You'll have to book a flight with a layover when traveling from Portland Intl. Airport (PDX) to Incheon Intl. Airport (ICN). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from PDX to ICN?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change based on various factors, including the time of year and airline.*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 Incheon Intl. Airport (ICN)?
To avoid potential delays on the Portland Intl. Airport (PDX) to Incheon Intl. Airport (ICN) route, fly before 3 PM. Departures after this time have a 22% higher chance of cancellation.**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 Incheon Intl. Airport (ICN) last-minute?
Waiting until right before your break to book your flight from PDX to ICN generally means paying more. While you may find some last-minute deals, there's no guarantee. Be flexible with your itinerary for the best chance of snagging a bargain.
Is it cheaper to book a PDX to ICN flight and hotel package?
Opting for a PDX to ICN flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Pick from our impressive range of accommodations and then add car rentals, activities and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Portland Intl. Airport (PDX) to Incheon Intl. Airport (ICN)?
You can usually reschedule or cancel your PDX to ICN flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Portland Intl.
Destination airport
Incheon Intl.
Airlines serving
Air Canada, Alaska Airlines, All Nippon Airways, American Airlines, Asiana Airlines, Cathay Pacific, Delta, Hawaiian Airlines, Korean Air, United, WestJet
Roundtrip price
$815
Distance
5276 mi

Book with confidence

Portland to Seoul Flights

The cheapest times to fly from Portland to Seoul

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

 

The best time to book a flight from Portland to Seoul

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

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 Seoul in 2025. You can also book with separate airlines for your outbound and return journeys, from $427 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 Seoul 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 Seoul 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 Seoul Flights

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*Available to One Key members.