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$368+ 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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SEL
Dec 20 — Dec 271
Sat 12/20
Sat 12/27
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Seoul are usually found in February or March, booked 51 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 November 20, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$691
(Air Canada)

One-way from

$368
(Alaska Airlines)

Popular in

June

Cheapest in

February

Average price

$1,092
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 ($229 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 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 November 20, 2025.

This Air Canada deal was found by Cheapflights users on 11/18. 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 11/309:50 amPDX - ICN
1 stop14h 20mAir Canada
Sun 12/215:55 pmICN - PDX
1 stop13h 45mAir Canada
Deal found 11/18$691
This Kiwi.com deal was found by Cheapflights users on 11/20. 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.
Mon 12/15:20 amPDX - ICN
2 stops39h 55mMultiple Airlines
Fri 12/1210:20 pmICN - PDX
1 stop27h 33mMultiple Airlines
Deal found 11/20$787
This Kiwi.com deal was found by Cheapflights users on 11/18. 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.
Sat 12/69:48 amPDX - ICN
2 stops42h 47mMultiple Airlines
Thu 12/111:20 pmICN - PDX
1 stop20h 17mMultiple Airlines
Deal found 11/18$795
This Air Canada deal was found by Cheapflights users on 11/19. 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 12/19:50 amPDX - ICN
1 stop14h 20mAir Canada
Wed 12/105:55 pmICN - PDX
1 stop13h 45mAir Canada
Deal found 11/19$799
This Air Canada deal was found by Cheapflights users on 11/19. 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 12/83:15 pmPDX - ICN
1 stop31h 45mAir Canada
Mon 12/226:55 pmICN - PDX
1 stop16h 35mAir Canada
Deal found 11/19$801
This Kiwi.com deal was found by Cheapflights users on 11/18. 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.
Mon 12/15:20 amPDX - ICN
2 stops39h 55mMultiple Airlines
Thu 12/111:20 pmICN - PDX
1 stop20h 17mMultiple Airlines
Deal found 11/18$806
This Kiwi.com deal was found by Cheapflights users on 11/20. 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 11/3010:30 pmPDX - ICN
2 stops45h 00mMultiple Airlines
Fri 12/1210:20 pmICN - PDX
1 stop27h 33mMultiple Airlines
Deal found 11/20$812
This Kiwi.com deal was found by Cheapflights users on 11/18. 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.
Thu 12/411:14 amPDX - ICN
2 stops36h 06mMultiple Airlines
Fri 12/1210:20 pmICN - PDX
1 stop27h 33mMultiple Airlines
Deal found 11/18$816
This Kiwi.com deal was found by Cheapflights users on 11/19. 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.
Thu 12/49:37 amPDX - ICN
2 stops20h 23mMultiple Airlines
Wed 12/1010:20 pmICN - PDX
1 stop35h 17mMultiple Airlines
Deal found 11/19$817
This Kiwi.com deal was found by Cheapflights users on 11/20. 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.
Mon 12/15:20 amPDX - ICN
2 stops22h 45mMultiple Airlines
Sun 12/1410:20 pmICN - PDX
1 stop35h 17mMultiple Airlines
Deal found 11/20$819
This Japan Airlines deal was found by Cheapflights users on 11/20. 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.
Tue 12/25:59 pmPDX - GMP
2 stops35h 06mMultiple Airlines
Fri 12/128:00 amGMP - PDX
2 stops26h 28mMultiple Airlines
Deal found 11/20$1,028
This FlightHub deal was found by Cheapflights users on 11/17. 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 12/47:04 amPDX - GMP
2 stops22h 01mJapan Airlines
Fri 1/98:00 amGMP - PDX
2 stops21h 38mJapan Airlines
Deal found 11/17$1,219

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 November 20, 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

Mon 2/9

5:35 am-4:15 pm

1 stop17h 40m

Incheon Intl

Mon 3/30

4:50 pm-8:33 pm

1 stop19h 43m

$816

PortlandIncheon

PDX - ICN

PDXICN

Portland

Thu 1/22

7:10 am-6:35 pm

1 stop18h 25m

Incheon Intl

Sun 2/15

8:35 pm-9:10 pm

1 stop17h 35m

$816

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sat 1/10

5:30 am-4:30 pm

1 stop18h 00m

Incheon Intl

Fri 1/16

8:05 pm-12:17 am

1 stop21h 12m

$816

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sat 1/10

8:30 am-5:40 am

2 stops28h 10m

Incheon Intl

Sun 2/15

6:00 pm-12:44 am

1 stop23h 44m

$820

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sun 1/25

7:10 am-6:35 pm

1 stop18h 25m

Incheon Intl

Thu 1/29

8:35 pm-10:46 pm

1 stop19h 11m

$863

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sun 11/30

12:59 am-4:45 pm

1 stop22h 46m

Incheon Intl

Wed 12/10

7:15 pm-9:24 pm

1 stop19h 09m

$916

PortlandIncheon

PDX - ICN

PDXICN

Portland

Tue 2/17

7:10 am-4:30 pm

1 stop16h 20m

Incheon Intl

Fri 2/27

8:05 pm-8:59 pm

1 stop17h 54m

$916

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 1/5

2:45 pm-5:40 am

2 stops21h 55m

Incheon Intl

Fri 1/30

6:00 pm-12:31 am

1 stop23h 31m

$916

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 12/1

9:11 am-4:30 pm

1 stop14h 19m

Incheon Intl

Sun 12/14

8:05 pm-6:50 pm

1 stop15h 45m

$916

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sun 11/30

7:15 am-4:30 pm

1 stop16h 15m

Incheon Intl

Fri 12/12

8:05 pm-6:50 pm

1 stop15h 45m

$916

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 37 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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Portland-Seoul flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 November 14, 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.

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 November 20, 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
1,170 reviews

Overall

8.4

Food

8.1

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

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
1,170 reviews
Korean Air
8.4
Very good
1,170 reviews

Overall

8.4

Food

8.1

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

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
488 reviews
Korean Air
8.4
Very good
1,170 reviews

Overall

8.4

Food

8.1

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

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
8,002 reviews
Korean Air
8.4
Very good
1,170 reviews

Overall

8.4

Food

8.1

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

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
9,028 reviews
Korean Air
8.4
Very good
1,170 reviews

Overall

8.4

Food

8.1

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

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
10,462 reviews
Korean Air
8.4
Very good
1,170 reviews

Overall

8.4

Food

8.1

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

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 $816, United Airlines can have you in Seoul from Portland in 17h 40m. 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 Alaska Airlines, which is currently one of the cheapest options available, starting at $368. Air Canada flights start at $401 while deals on Delta start at $418 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 Capilano Suspension Bridge 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 Capilano Suspension Bridge can be accessed by traveling approximately 6.5 mi, 6.6 mi, and 10.6 mi, respectively from Vancouver Intl. Travelers in need of a car in Vancouver can rent one for about $36 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

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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 November 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$767Average$1,292FlexibilityNo cancel feeOn-time85%
Air CanadaCheapest$809Average$1,102FlexibilityNo cancel feeOn-time67%
Alaska AirlinesCheapest$847Average$1,072FlexibilityNo cancel feeOn-time75%
DeltaCheapest$849Average$1,029FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$907Average$1,339FlexibilityNo cancel feeOn-time69%
Asiana AirlinesCheapest$912Average$1,126FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$1,082Average$1,518FlexibilityNo cancel feeOn-time81%

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