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$422+ 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SEL
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Seoul are usually found in February or March, booked 55 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 October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$789
(Kiwi.com)

One-way from

$422
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,063
Provider with most accurate pricing for Portland-Seoul (SEL) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Seoul (SEL) flights.
Search Deals
From Portland to Seoul (SEL)
Search Deals
One-way flight from Portland to Seoul (SEL)
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($221 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 October 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 October 16, 2025.

This Air Canada deal was found by Cheapflights users on 10/15. 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.
Sun 11/27:00 pmPDX - ICN
1 stop29h 10mMultiple Airlines
Thu 11/132:35 pmICN - PDX
2 stops20h 55mMultiple Airlines
Deal found 10/15$800
This Kiwi.com deal was found by Cheapflights users on 10/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/91:21 pmPDX - ICN
2 stops29h 59mMultiple Airlines
Sun 11/236:55 pmICN - PDX
1 stop31h 40mMultiple Airlines
Deal found 10/15$837
This Kiwi.com deal was found by Cheapflights users on 10/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:00 amPDX - ICN
1 stop20h 30mMultiple Airlines
Wed 11/196:55 pmICN - PDX
1 stop14h 55mMultiple Airlines
Deal found 10/15$841
This Kiwi.com deal was found by Cheapflights users on 10/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/115:41 pmPDX - ICN
1 stop33h 49mMultiple Airlines
Thu 12/119:20 pmICN - PDX
2 stops29h 14mMultiple Airlines
Deal found 10/15$846
This Gotogate deal was found by Cheapflights users on 10/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/107:00 pmPDX - ICN
1 stop29h 10mMultiple Airlines
Mon 11/242:35 pmICN - PDX
2 stops20h 55mMultiple Airlines
Deal found 10/16$849
This Gotogate deal was found by Cheapflights users on 10/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/39:50 amPDX - ICN
1 stop14h 20mMultiple Airlines
Mon 11/172:35 pmICN - PDX
2 stops20h 55mMultiple Airlines
Deal found 10/15$853
This Air Canada deal was found by Cheapflights users on 10/15. 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.
Sun 11/27:00 pmPDX - ICN
1 stop29h 10mAir Canada
Mon 11/176:55 pmICN - PDX
1 stop12h 45mAir Canada
Deal found 10/15$868
This Air Canada deal was found by Cheapflights users on 10/13. 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.
Sun 11/97:00 pmPDX - ICN
1 stop29h 10mAir Canada
Mon 11/246:55 pmICN - PDX
1 stop16h 35mAir Canada
Deal found 10/13$869
This Mytrip deal was found by Cheapflights users on 10/14. 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.
Sun 11/169:50 amPDX - ICN
1 stop18h 45mMultiple Airlines
Sat 11/229:20 pmICN - PDX
1 stop14h 10mMultiple Airlines
Deal found 10/14$873
This Booking.com deal was found by Cheapflights users on 10/16. 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.
Thu 11/139:50 amPDX - ICN
1 stop14h 20mMultiple Airlines
Thu 11/272:35 pmICN - PDX
2 stops20h 55mMultiple Airlines
Deal found 10/16$875
This Ovago deal was found by Cheapflights users on 10/15. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/26:00 amPDX - GMP
2 stops23h 05mJapan Airlines
Fri 12/128:00 amGMP - PDX
2 stops25h 50mJapan Airlines
Deal found 10/15$1,027
This oojo deal was found by Cheapflights users on 10/14. 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 12/15:20 amPDX - GMP
2 stops23h 45mMultiple Airlines
Wed 12/1012:05 pmGMP - PDX
2 stops21h 45mMultiple Airlines
Deal found 10/14$1,048

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 October 16, 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

Sun 2/22

6:00 am-6:35 pm

1 stop19h 35m

Incheon Intl

Sat 2/28

8:35 pm-4:40 pm

1 stop13h 05m

$866

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sun 3/1

10:40 am-6:35 pm

1 stop14h 55m

Incheon Intl

Sun 3/8

8:35 pm-5:59 pm

1 stop13h 24m

$866

PortlandIncheon

PDX - ICN

PDXICN

Portland

Tue 11/11

7:00 pm-5:10 pm

1 stop29h 10m

Incheon Intl

Tue 1/13

6:55 pm-6:30 pm

1 stop16h 35m

$868

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 12/1

7:00 pm-5:10 pm

1 stop29h 10m

Incheon Intl

Wed 12/10

6:55 pm-6:30 pm

1 stop16h 35m

$868

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sat 3/7

1:45 pm-6:35 pm

1 stop35h 50m

Incheon Intl

Sun 3/15

8:35 pm-10:26 pm

1 stop17h 51m

$871

PortlandIncheon

PDX - ICN

PDXICN

Portland

Tue 11/11

9:50 am-5:10 pm

1 stop14h 20m

Incheon Intl

Tue 1/13

2:35 pm-6:30 pm

2 stops20h 55m

$894

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 11/10

7:38 pm-5:55 am

1 stop17h 17m

Incheon Intl

Wed 6/3

8:40 pm-6:36 pm

1 stop13h 56m

$903

PortlandIncheon

PDX - ICN

PDXICN

Portland

Wed 11/5

7:38 pm-5:55 am

1 stop17h 17m

Incheon Intl

Wed 5/13

8:40 pm-12:19 am

1 stop19h 39m

$903

PortlandIncheon

PDX - ICN

PDXICN

Portland

Fri 11/7

5:30 am-4:30 pm

1 stop18h 00m

Incheon Intl

Sat 11/22

8:05 pm-10:40 pm

1 stop19h 35m

$912

PortlandSeoul

PDX - GMP

PDXGMP

Portland

Tue 2/10

7:20 am-10:05 pm

2 stops21h 45m

Seoul Gimpo Intl

Tue 2/17

12:05 pm-12:36 pm

2 stops17h 31m

$969

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/15

Showing 1-10 of 36 results
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Compare providers for flights from Portland to Seoul

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Seoul in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland-Seoul flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Seoul flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Seoul flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Seoul flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Seoul flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 October 10, 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 51 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, June is the cheapest month in which you can book a flight from Portland to Seoul (average of $686). Flying from Portland to Seoul in August is currently the most expensive (average of $961). 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 October 16, 2025.

It’s optimal to fly from Portland to Seoul in the afternoon. By choosing this option you can save up to 44% on the cost of your flight, compared to a flight at noon.

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 October 16, 2025.
See what other customers who have flown with Korean Air, Asiana Airlines, and Delta 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.
Korean Air
8.4
Very good
1,149 reviews

Crew

8.7

Boarding

8.5

Entertainment

8.2

Overall

8.4

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,149 reviews
Korean Air
8.4
Very good
1,149 reviews

Crew

8.7

Boarding

8.5

Entertainment

8.2

Overall

8.4

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Asiana Airlines
8.2
Very good
486 reviews
Korean Air
8.4
Very good
1,149 reviews

Crew

8.7

Boarding

8.5

Entertainment

8.2

Overall

8.4

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Delta
7.9
Good
7,981 reviews
Korean Air
8.4
Very good
1,149 reviews

Crew

8.7

Boarding

8.5

Entertainment

8.2

Overall

8.4

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
United Airlines
7.4
Good
8,982 reviews
Korean Air
8.4
Very good
1,149 reviews

Crew

8.7

Boarding

8.5

Entertainment

8.2

Overall

8.4

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Air Canada
7.1
Good
10,306 reviews
Korean Air
8.4
Very good
1,149 reviews

Crew

8.7

Boarding

8.5

Entertainment

8.2

Overall

8.4

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

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. 7 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.

  • How long is the flight from Portland to Seoul?

    For as low as $866, Hawaiian Airlines can have you in Seoul from Portland in 19h 35m. Airlines will cover a distance of 5273 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    According to our current data, Hawaiian Airlines ($767), Air Canada ($809), and Alaska Airlines ($847) offers the cheapest pricing from Portland to Seoul. Hawaiian Airlines is 31% 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 American Airlines, which is currently one of the cheapest options available, starting at $456. Hawaiian Airlines flights start at $458 while deals on Air Canada start at $458 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?

    Orpheum Theatre, Pacific Central Station, and Queen Elizabeth Theatre are the most popular attractions in Vancouver if you're in need of something to do during your layover. Orpheum Theatre, Pacific Central Station, and Queen Elizabeth Theatre can be accessed by traveling approximately 6.5 mi, 6.6 mi, and 6.6 mi, respectively from Vancouver Intl. Travelers in need of a car in Vancouver can rent one for about $39 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, June is the cheapest month in which you can book a flight from Portland to Seoul (average of $686). Flying from Portland to Seoul in August is currently the most expensive (average of $961). 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

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Top 7 airlines flying from Portland to Seoul

Discover the top 7 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 October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$767Average$1,292FlexibilityNo cancel feeOn-time85%
Air CanadaCheapest$809Average$1,083FlexibilityNo cancel feeOn-time67%
Alaska AirlinesCheapest$847Average$1,072FlexibilityNo cancel feeOn-time75%
DeltaCheapest$849Average$1,012FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$907Average$1,200FlexibilityNo cancel feeOn-time69%
Asiana AirlinesCheapest$912Average$1,126FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$1,084Average$1,485FlexibilityNo cancel feeOn-time81%

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