$561 Cheap Flights from Eugene (EUG) to Seoul (ICN)

View $561 flight on Mon, Sep 29, 2025Opens in a new window

Popular airlines from Mahlon Sweet Field Airport (EUG) to Incheon Intl. Airport (ICN)

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Cheap Flights from Eugene to Seoul (EUG-ICN)

Prices were available within the past 7 days and start at $561 for one-way flights and $945 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sun, Nov 30 - Sun, Dec 14
EUG
Eugene
ICN
Seoul
$945 Roundtrip, found 3 days ago
$945
Roundtrip
found 3 days ago
Select Delta flight, departing Sun, Nov 30 from Eugene to Seoul, returning Sun, Dec 14, priced at $945 found 3 days ago
Delta
Sun, Oct 5 - Thu, Oct 23
EUG
Eugene
ICN
Seoul
$951 Roundtrip, found 3 hours ago
$951
Roundtrip
found 3 hours ago
Select Delta flight, departing Sun, Oct 5 from Eugene to Seoul, returning Thu, Oct 23, priced at $951 found 3 hours ago
Alaska Airlines
Sat, Nov 1 - Sun, Nov 16
EUG
Eugene
ICN
Seoul
$951 Roundtrip, found 3 days ago
$951
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Nov 1 from Eugene to Seoul, returning Sun, Nov 16, priced at $951 found 3 days ago
Delta
Thu, Oct 2 - Mon, Oct 13
EUG
Eugene
ICN
Seoul
$955 Roundtrip, found 3 days ago
$955
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Oct 2 from Eugene to Seoul, returning Mon, Oct 13, priced at $955 found 3 days ago
Alaska Airlines
Fri, Sep 12 - Sun, Sep 28
EUG
Eugene
ICN
Seoul
$956 Roundtrip, found 2 hours ago
$956
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Fri, Sep 12 from Eugene to Seoul, returning Sun, Sep 28, priced at $956 found 2 hours ago
Delta
Thu, Oct 2 - Mon, Oct 13
EUG
Eugene
ICN
Seoul
$961 Roundtrip, found 3 days ago
$961
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Oct 2 from Eugene to Seoul, returning Mon, Oct 13, priced at $961 found 3 days ago
Delta
Thu, Oct 2 - Mon, Oct 13
EUG
Eugene
ICN
Seoul
$961 Roundtrip, found 3 days ago
$961
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Oct 2 from Eugene to Seoul, returning Mon, Oct 13, priced at $961 found 3 days ago
American Airlines
Mon, Sep 29 - Fri, Oct 17
EUG
Eugene
ICN
Seoul
$982 Roundtrip, found 1 day ago
$982
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Sep 29 from Eugene to Seoul, returning Fri, Oct 17, priced at $982 found 1 day ago
United
Sat, Dec 6 - Fri, Dec 26
EUG
Eugene
ICN
Seoul
$1,041 Roundtrip, found 3 days ago
$1,041
Roundtrip
found 3 days ago
Select United flight, departing Sat, Dec 6 from Eugene to Seoul, returning Fri, Dec 26, priced at $1,041 found 3 days ago
Hawaiian Airlines
Thu, Nov 13 - Mon, Nov 17
EUG
Eugene
ICN
Seoul
$1,142 Roundtrip, found 6 days ago
$1,142
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Thu, Nov 13 from Eugene to Seoul, returning Mon, Nov 17, priced at $1,142 found 6 days ago
Flights from Eugene (EUG) to Seoul (ICN)
Origin airport
Eugene
Destination airport
Incheon Intl.
Airlines serving
Alaska Airlines, American Airlines, Asiana Airlines, Delta, Korean Air, United
Roundtrip price
$944
Distance
5318 mi

Eugene to Seoul Flights

The cheapest times to fly from Eugene 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 Eugene to Seoul are during the month of November. You can find some of the cheapest flights from Eugene to Seoul with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Eugene to Seoul

Sunday is one of the best days to book for cheap flights from Eugene 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 Eugene 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 Eugene to Seoul in 2025. You can also book with separate airlines for your outbound and return journeys, from $561 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 Eugene 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 Eugene 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.

 

Frequently asked questions

How much does a flight from Mahlon Sweet Field Airport (EUG) to Incheon Intl. Airport (ICN) cost?
Discover the latest flight deals from EUG to ICN by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from EUG to ICN?
The cheapest flights from EUG to ICN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from EUG to ICN?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from EUG to ICN. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Mahlon Sweet Field Airport (EUG) to Incheon Intl. Airport (ICN)?
Nonstop flights from Mahlon Sweet Field Airport (EUG) to Incheon Intl. Airport (ICN) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from EUG to ICN?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary 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 Mahlon Sweet Field Airport (EUG) to Incheon Intl. Airport (ICN)?
To land at Incheon Intl. Airport (ICN) on schedule, book a flight that leaves Mahlon Sweet Field Airport (EUG) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Mahlon Sweet Field Airport (EUG) to Incheon Intl. Airport (ICN) last-minute?
Booking your plane ticket from EUG to ICN right before your journey is usually more expensive. But if you're flexible with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book an EUG to ICN flight and hotel package?
Compared with arranging hotels and flights separately, booking an EUG to ICN flight and hotel package with Expedia could result in significant savings. What's more, having everything in one easy place will take the hassle out of travel planning. Simply pick your flights and choose from our extensive range of stays, then personalize your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Mahlon Sweet Field Airport (EUG) to Incheon Intl. Airport (ICN)?
Typically, you're able to cancel or reschedule your EUG to ICN flight. However, there may be additional charges, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you need further information, go to our Customer Service portal.

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*Available to One Key members.