HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seoul

$385+ Cheap flights from Portland (PDX) to Seoul (SEL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SEL
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portland to Seoul with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Portland to Seoul are usually found in March or January, booked 81 days in advance, depart on a Thursday or Tuesday and return on a Tuesday

Cheap flight deals from Portland to Seoul

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Seoul (SEL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 1, 2025.

Round-trip from

$911
(American Airlines)

One-way from

$385
(Kiwi.com)

Popular in

August

Cheapest in

March

Average price

$1,409
From Portland to Seoul (SEL)
Search Deals
One-way flight from Portland to Seoul (SEL)
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($168 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from Portland to Seoul

Cheapest flights from Portland to Seoul
Explore the most affordable flight options available from Portland to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.

This Mytrip deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/36:15 amPDX - ICN
2 stops20h 30mMultiple Airlines
Wed 9/1010:35 amICN - PDX
2 stops24h 11mMultiple Airlines
Deal found 7/1$783
This American Airlines deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/111:59 pmPDX - ICN
1 stop23h 31mAmerican Airlines
Tue 9/165:25 pmICN - PDX
1 stop20h 02mAmerican Airlines
Deal found 6/29$911
This Air Canada deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/156:15 amPDX - ICN
1 stop17h 50mAir Canada
Wed 10/155:45 pmICN - PDX
1 stop13h 01mAir Canada
Deal found 6/30$925
This oojo deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/32:30 pmPDX - ICN
2 stops28h 45mChina Airlines
Tue 9/1612:35 pmICN - PDX
2 stops27h 40mChina Airlines
Deal found 6/30$999
This Delta deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/247:15 amPDX - ICN
1 stop17h 15mDelta
Mon 10/67:20 pmICN - PDX
1 stop13h 46mDelta
Deal found 6/30$1,011
This United Airlines deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/237:00 amPDX - ICN
2 stops29h 20mUnited Airlines
Wed 10/111:30 amICN - PDX
1 stop23h 03mUnited Airlines
Deal found 6/29$1,015
This Alaska Airlines deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/165:30 pmPDX - ICN
2 stops33h 05mAlaska Airlines
Fri 10/178:35 pmICN - PDX
2 stops30h 28mAlaska Airlines
Deal found 6/29$1,017
This FlightHub deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/286:14 amPDX - ICN
2 stops37h 41mChina Eastern
Thu 9/116:25 pmICN - PDX
2 stops37h 47mChina Eastern
Deal found 6/29$1,044
This oojo deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/37:00 amPDX - GMP
2 stops22h 20mJapan Airlines
Mon 11/177:40 pmGMP - PDX
2 stops38h 10mJapan Airlines
Deal found 6/29$1,106
This Japan Airlines deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/207:40 amPDX - GMP
2 stops22h 10mMultiple Airlines
Mon 10/2712:05 pmGMP - PDX
2 stops20h 45mMultiple Airlines
Deal found 6/29$1,164
This Booking.com deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/17:30 amPDX - GMP
2 stops35h 50mANA
Sat 11/1512:25 pmGMP - PDX
2 stops22h 59mANA
Deal found 6/28$1,406

Cheapflights Fare Finder

Customize your flight search to find flights from Portland to Seoul that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 1, 2025.
Use the filters below to find and compare flights from Portland to Seoul that are best for you.

Fly from

Portland

Fly to

Seoul

Route

Depart

Return

Price

PortlandIncheon

PDX - ICN

PDXICN

Portland

Wed 9/3

6:15 am-6:45 pm

2 stops20h 30m

Incheon Intl

Wed 9/10

10:35 am-6:46 pm

2 stops24h 11m

$783

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 9/1

11:59 pm-3:30 pm

1 stop23h 31m

Incheon Intl

Sat 9/13

5:25 pm-9:27 pm

1 stop20h 02m

$911

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 9/15

6:15 am-4:05 pm

1 stop17h 50m

Incheon Intl

Wed 10/15

5:45 pm-2:46 pm

1 stop13h 01m

$925

PortlandIncheon

PDX - ICN

PDXICN

Portland

Wed 9/3

2:30 pm-11:15 am

2 stops28h 45m

Incheon Intl

Tue 9/16

12:35 pm-12:15 am

2 stops27h 40m

$999

PortlandIncheon

PDX - ICN

PDXICN

Portland

Wed 9/24

7:15 am-4:30 pm

1 stop17h 15m

Incheon Intl

Mon 10/6

7:20 pm-5:06 pm

1 stop13h 46m

$1,011

PortlandIncheon

PDX - ICN

PDXICN

Portland

Tue 9/23

7:00 am-4:20 am

2 stops29h 20m

Incheon Intl

Wed 10/1

11:30 am-6:33 pm

1 stop23h 03m

$1,015

PortlandIncheon

PDX - ICN

PDXICN

Portland

Tue 9/16

5:30 pm-6:35 pm

2 stops33h 05m

Incheon Intl

Fri 10/17

8:35 pm-11:03 am

2 stops30h 28m

$1,017

PortlandIncheon

PDX - ICN

PDXICN

Portland

Thu 8/28

6:14 am-11:55 am

2 stops37h 41m

Incheon Intl

Thu 9/11

6:25 pm-4:12 pm

2 stops37h 47m

$1,044

PortlandSeoul

PDX - GMP

PDXGMP

Portland

Mon 11/3

7:00 am-10:20 pm

2 stops22h 20m

Seoul Gimpo Intl

Mon 11/17

7:40 pm-4:50 pm

2 stops38h 10m

$1,106

PortlandSeoul

PDX - GMP

PDXGMP

Portland

Mon 10/20

7:40 am-9:50 pm

2 stops22h 10m

Seoul Gimpo Intl

Mon 10/27

12:05 pm-4:50 pm

2 stops20h 45m

$1,164

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 16 results
1
2

Best time to book a flight from Portland to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to Seoul

How far ahead should I book a flight from Portland to Seoul?

Use this chart to determine the optimal time to book a round-trip flight from Portland to Seoul. Price data was last updated on June 27, 2025.

The price you pay for your flight from Portland to Seoul may vary depending on when you book. For the best chance of a lower fare, look to book 80 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Portland to Seoul?

Currently, February is the cheapest month in which you can book a flight from Portland to Seoul (average of $998). Flying from Portland to Seoul in December is currently the most expensive (average of $1,635). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PDX to SEL?

Find hourly flight availability from Portland to Seoul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 1, 2025.

It’s optimal to fly from Portland to Seoul at noon. By choosing this option you can save up to 25% on the cost of your flight, compared to a flight in the afternoon.

How much does it cost to fly round-trip from Portland to Seoul?

Reviews of airlines servicing Seoul

Get insights into the airlines that provide service to Seoul. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seoul. Reviews last updated July 1, 2025.
See what other customers who have flown with ANA, Japan Airlines, and China Airlines from Portland to Seoul have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.4
Very good
892 reviews

Food

7.7

Overall

8.4

Boarding

8.5

Comfort

8.2

Entertainment

7.9

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
ANA
8.4
Very good
892 reviews
ANA
8.4
Very good
892 reviews

Food

7.7

Overall

8.4

Boarding

8.5

Comfort

8.2

Entertainment

7.9

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
Japan Airlines
8.3
Very good
1,505 reviews
ANA
8.4
Very good
892 reviews

Food

7.7

Overall

8.4

Boarding

8.5

Comfort

8.2

Entertainment

7.9

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
China Airlines
8.3
Very good
745 reviews
ANA
8.4
Very good
892 reviews

Food

7.7

Overall

8.4

Boarding

8.5

Comfort

8.2

Entertainment

7.9

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
Alaska Airlines
8.0
Very good
10,000 reviews
ANA
8.4
Very good
892 reviews

Food

7.7

Overall

8.4

Boarding

8.5

Comfort

8.2

Entertainment

7.9

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
Delta
8.0
Very good
7,973 reviews
ANA
8.4
Very good
892 reviews

Food

7.7

Overall

8.4

Boarding

8.5

Comfort

8.2

Entertainment

7.9

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.

Related info for your journey

Find useful and relevant information for your journey from Portland to Seoul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Portland to Seoul?

    Portland (PDX), located 6.0 mi from the city center, is the airport you fly out of when you book flights from Portland to Seoul. 6 airlines have flights from Portland to Seoul on a regular basis. Booking flights from Portland to Seoul should not be difficult; the airport handles an average of 0 outbound flights to Seoul per day.

  • What are the cheapest airlines flying from Portland to Seoul round-trip?

    According to our current data, American Airlines ($911), Air Canada ($925), and China Airlines ($999) offers the cheapest pricing from Portland to Seoul. American Airlines is 21% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Portland to Seoul one-way?

    To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at $473. American Airlines flights start at $548 while deals on Japan Airlines start at $559 one-way.

  • Where are the most common layover locations when flying from Portland to Seoul?

    Of the flights from Portland to Seoul that have layovers, most of them stop in Vancouver.

  • What are some popular things to do or see while on a layover in Vancouver?

    Pacific Central Station, Orpheum Theatre, and Capilano Suspension Bridge are the most popular attractions in Vancouver if you're in need of something to do during your layover. Pacific Central Station, Orpheum Theatre, and Capilano Suspension Bridge can be accessed by traveling approximately 6.6 mi, 6.5 mi, and 10.6 mi, respectively from Vancouver Intl. Travelers in need of a car in Vancouver can rent one for about $63 per day.

  • Where are the least popular layover locations for Portland to Seoul flights?

    The least popular layover on flights from Portland to Seoul is Seattle.

  • Can I find deals for flights from Portland to Seoul that include hotel bookings?

    Yes. In addition to deals on Portland to Seoul flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Seoul?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Seoul.

  • Can I find deals for business class flights from Portland to Seoul?

    Yes. Cheapflights offers flight deals from Portland to Seoul by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland to Seoul?

    Currently, February is the cheapest month in which you can book a flight from Portland to Seoul (average of $998). Flying from Portland to Seoul in December is currently the most expensive (average of $1,635). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 6 airlines flying from Portland to Seoul

Discover the top 6 airlines that operate flights from Portland to Seoul. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$403Average$1,292FlexibilityNo cancel feeOn-time85%
Air CanadaCheapest$809Average$1,092FlexibilityNo cancel feeOn-time67%
DeltaCheapest$849Average$1,203FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$907Average$1,265FlexibilityNo cancel feeOn-time69%
Asiana AirlinesCheapest$912Average$1,126FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$1,082Average$1,512FlexibilityNo cancel feeOn-time81%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.