$641 Cheap Flights from Portland (PDX) to Jeju (CJU)

View $641 flight on Tue, Nov 25, 2025Opens in a new window

Popular airlines from Portland International Airport (PDX) to Jeju Intl. Airport (CJU)

Cheap Flights from Portland to Jeju (PDX-CJU)

Prices were available within the past 7 days and start at $641 for one-way flights and $1,352 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, Mar 23 - Wed, Mar 25
PDX
Portland
CJU
Jeju City
$1,352 Roundtrip, found 1 day ago
$1,352
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Mar 23 from Portland to Jeju City, returning Wed, Mar 25, priced at $1,352 found 1 day ago
Korean Air
Mon, Apr 6 - Sun, Apr 12
PDX
Portland
CJU
Jeju City
$1,354 Roundtrip, found 3 days ago
$1,354
Roundtrip
found 3 days ago
Select Korean Air flight, departing Mon, Apr 6 from Portland to Jeju City, returning Sun, Apr 12, priced at $1,354 found 3 days ago
Korean Air
Mon, Mar 30 - Fri, Apr 10
PDX
Portland
CJU
Jeju City
$1,356 Roundtrip, found 4 days ago
$1,356
Roundtrip
found 4 days ago
Select Korean Air flight, departing Mon, Mar 30 from Portland to Jeju City, returning Fri, Apr 10, priced at $1,356 found 4 days ago
Delta
Sun, Mar 22 - Wed, Mar 25
PDX
Portland
CJU
Jeju City
$1,380 Roundtrip, found 1 day ago
$1,380
Roundtrip
found 1 day ago
Select Delta flight, departing Sun, Mar 22 from Portland to Jeju City, returning Wed, Mar 25, priced at $1,380 found 1 day ago
Korean Air
Sat, Mar 21 - Wed, Mar 25
PDX
Portland
CJU
Jeju City
$1,384 Roundtrip, found 1 day ago
$1,384
Roundtrip
found 1 day ago
Select Korean Air flight, departing Sat, Mar 21 from Portland to Jeju City, returning Wed, Mar 25, priced at $1,384 found 1 day ago
Korean Air
Sun, Apr 5 - Sun, Apr 12
PDX
Portland
CJU
Jeju City
$1,398 Roundtrip, found 3 days ago
$1,398
Roundtrip
found 3 days ago
Select Korean Air flight, departing Sun, Apr 5 from Portland to Jeju City, returning Sun, Apr 12, priced at $1,398 found 3 days ago
Korean Air
Fri, Apr 3 - Fri, Apr 10
PDX
Portland
CJU
Jeju City
$1,400 Roundtrip, found 4 days ago
$1,400
Roundtrip
found 4 days ago
Select Korean Air flight, departing Fri, Apr 3 from Portland to Jeju City, returning Fri, Apr 10, priced at $1,400 found 4 days ago
Air China
Wed, Apr 8 - Wed, Apr 15
PDX
Portland
CJU
Jeju City
$3,112 Roundtrip, found 3 days ago
$3,112
Roundtrip
found 3 days ago
Select Air China flight, departing Wed, Apr 8 from Portland to Jeju City, returning Wed, Apr 15, priced at $3,112 found 3 days ago
Alaska Airlines
Wed, Apr 1 - Wed, Apr 15
PDX
Portland
CJU
Jeju City
$3,836 Roundtrip, found 3 days ago
$3,836
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Apr 1 from Portland to Jeju City, returning Wed, Apr 15, priced at $3,836 found 3 days ago
Air Canada
Wed, Nov 12 - Sun, Nov 16
PDX
Portland
CJU
Jeju City
$4,494 Roundtrip, found 1 day ago
$4,494
Roundtrip
found 1 day ago
Select Air Canada flight, departing Wed, Nov 12 from Portland to Jeju City, returning Sun, Nov 16, priced at $4,494 found 1 day ago
Flights from Portland (PDX) to Jeju (CJU)
Origin airport
Portland Intl.
Destination airport
Jeju Intl.
Airlines serving
Korean Air
Roundtrip price
$1,352
Distance
5477 mi

Portland to Jeju Flights

The cheapest times to fly from Portland to Jeju

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

 

The best time to book a flight from Portland to Jeju

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

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 Jeju in 2025. You can also book with separate airlines for your outbound and return journeys, from $641 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 Jeju 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 Jeju 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 Jeju Intl. Airport (CJU) cost?
Snag a cheap one-way flight from $641 or cheap return flight from $1,352 from Portland Intl. Airport (PDX) to Jeju Intl. Airport (CJU) 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 Jeju Intl. Airport (CJU)?
Traveling in March is a good way to save, as it's the cheapest month for flights between PDX and CJU. You'll typically find the lowest prices during the off-season.
What is the cheapest airline that flies from Portland Intl. Airport (PDX) to Jeju Intl. Airport (CJU)?
To find the cheapest airline flying from PDX to CJU, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Portland Intl. Airport (PDX) to Jeju Intl. Airport (CJU)?
Nonstop flights from Portland Intl. Airport (PDX) to Jeju Intl. Airport (CJU) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from PDX to CJU?
Generally you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* But 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 Jeju Intl. Airport (CJU)?
Opt for a flight from Portland Intl. Airport (PDX) to Jeju Intl. Airport (CJU) that takes off before 3 PM to reduce the risk of cancellations and delays. Departures later than this 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 Jeju Intl. Airport (CJU) last-minute?
Holding off until right before your break to book a ticket from PDX to CJU often results in higher prices. Although you may find some last-minute offers, there's no guarantee. Keep your travel schedule open for a better chance of snagging a bargain.
Is it cheaper to book a PDX to CJU flight and hotel package?
You'll generally save money by securing a PDX to CJU flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've selected your preferred accommodations and flights, consider adding extras including car rentals, tours and activities.
Can I cancel or change the date of my flight from Portland Intl. Airport (PDX) to Jeju Intl. Airport (CJU)?
Usually, it's possible to reschedule or cancel your PDX to CJU 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 whether any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.