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$427+ 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 7/25. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SEL
Apr 21 — Apr 281
Tue 4/21
Tue 4/28
1 adult, Economy
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Cheap 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 March 22, 2026.

This Air Canada deal was found by Cheapflights users on 3/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:45 pm
PDX
-
ICN
1 stop28h 20m
Air Canada
Wed 9/305:45 pm
ICN
-
PDX
1 stop17h 21m
Air Canada
Deal found 3/17$870
This Air Canada deal was found by Cheapflights users on 3/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:45 pm
PDX
-
ICN
2 stops26h 20m
Multiple Airlines
Wed 9/305:45 pm
ICN
-
PDX
1 stop17h 21m
Multiple Airlines
Deal found 3/17$897
This Expedia deal was found by Cheapflights users on 3/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/143:15 pm
PDX
-
ICN
1 stop32h 50m
Air Canada
Tue 4/285:45 pm
ICN
-
PDX
1 stop31h 25m
Air Canada
Deal found 3/19$904
This Expedia deal was found by Cheapflights users on 3/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:45 pm
PDX
-
ICN
1 stop28h 20m
Air Canada
Thu 10/85:45 pm
ICN
-
PDX
1 stop13h 06m
Air Canada
Deal found 3/17$907
This FlightHub deal was found by Cheapflights users on 3/17. 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.
Sun 5/107:45 pm
PDX
-
ICN
1 stop28h 20m
Air Canada
Mon 5/185:45 pm
ICN
-
PDX
1 stop13h 00m
Air Canada
Deal found 3/17$917
This FlightHub deal was found by Cheapflights users on 3/17. 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.
Mon 9/142:30 pm
PDX
-
ICN
2 stops28h 45m
Multiple Airlines
Mon 9/218:35 pm
ICN
-
PDX
2 stops29h 11m
Multiple Airlines
Deal found 3/17$918
This Air Canada deal was found by Cheapflights users on 3/19. 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.
Tue 4/149:50 am
PDX
-
ICN
2 stops17h 20m
Multiple Airlines
Tue 4/285:45 pm
ICN
-
PDX
1 stop16h 45m
Multiple Airlines
Deal found 3/19$927
This Air Canada deal was found by Cheapflights users on 3/18. 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.
Mon 4/139:50 am
PDX
-
ICN
2 stops17h 20m
Multiple Airlines
Thu 4/235:45 pm
ICN
-
PDX
1 stop12h 55m
Multiple Airlines
Deal found 3/18$929
This KAYAK deal was found by Cheapflights users on 3/18. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/137:45 pm
PDX
-
ICN
1 stop28h 20m
Asiana Airlines
Thu 5/215:45 pm
ICN
-
PDX
1 stop17h 20m
Asiana Airlines
Deal found 3/18$936
This FlightHub deal was found by Cheapflights users on 3/22. 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.
Wed 9/25:55 pm
PDX
-
ICN
2 stops33h 10m
Multiple Airlines
Mon 9/218:35 pm
ICN
-
PDX
2 stops29h 11m
Multiple Airlines
Deal found 3/22$942
This oojo deal was found by Cheapflights users on 3/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:00 am
PDX
-
GMP
2 stops22h 15m
Multiple Airlines
Sun 9/67:15 pm
GMP
-
PDX
2 stops37h 35m
Multiple Airlines
Deal found 3/19$987
This Cheapflightsfares deal was found by Cheapflights users on 3/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/217:00 am
PDX
-
GMP
2 stops22h 15m
Japan Airlines
Tue 9/112:05 pm
GMP
-
PDX
2 stops20h 45m
Japan Airlines
Deal found 3/19$997

Find 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 March 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$878
(CheapOair)

One-way from

$438
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,221
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. 17% potential increase in price ($238 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 22, 2026.
Use the filters below to find and compare flights from Portland to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sun 4/5

7:05 pm-4:05 pm

1 stop29h 00m

Incheon Intl

Sat 5/2

5:45 pm-2:45 pm

1 stop13h 00m

$967

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sun 4/19

7:05 pm-4:05 pm

1 stop29h 00m

Incheon Intl

Sat 5/2

5:45 pm-7:05 pm

1 stop17h 20m

$1,005

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sun 4/5

3:15 pm-12:40 pm

2 stops29h 25m

Incheon Intl

Sat 5/2

8:05 pm-9:30 am

2 stops29h 25m

$1,123

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sun 4/12

7:14 pm-4:20 am

1 stop17h 06m

Incheon Intl

Sun 4/26

11:30 am-6:07 pm

1 stop22h 37m

$1,136

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 4/13

7:14 pm-4:20 am

1 stop17h 06m

Incheon Intl

Sun 4/26

11:30 am-2:31 pm

1 stop19h 01m

$1,136
Quickest round-trip

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sun 4/12

5:30 am-3:00 pm

1 stop17h 30m

Incheon Intl

Sat 4/25

11:30 am-12:25 pm

1 stop16h 55m

$1,136

PortlandIncheon

PDX - ICN

PDXICN

Portland

Wed 4/8

5:00 am-4:20 am

2 stops31h 20m

Incheon Intl

Fri 4/24

4:50 pm-9:48 am

2 stops32h 58m

$1,141

PortlandIncheon

PDX - ICN

PDXICN

Portland

Fri 7/24

12:50 pm-4:20 am

2 stops23h 30m

Incheon Intl

Wed 8/12

11:30 am-10:12 am

1 stop14h 42m

$1,141

PortlandIncheon

PDX - ICN

PDXICN

Portland

Thu 5/7

8:11 pm-4:50 pm

1 stop28h 39m

Incheon Intl

Sun 6/7

7:00 pm-4:33 pm

1 stop13h 33m

$1,143

PortlandSeoul

PDX - GMP

PDXGMP

Portland

Sun 5/10

7:00 am-9:15 pm

2 stops22h 15m

Seoul Gimpo Intl

Mon 5/18

7:15 pm-4:50 pm

2 stops37h 35m

$1,159

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/19

Showing 1-10 of 38 resultsSorted by cheapest first
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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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 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 March 13, 2026.

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 38 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, April is the cheapest month in which you can book a flight from Portland to Seoul (average of $780). Flying from Portland to Seoul in July is currently the most expensive (average of $1,205). 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 March 22, 2026.
See what other customers who have flown with Korean Air,Asiana Airlines, andDelta 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
1,205 reviews

Boarding

8.5

Comfort

8.3

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

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
1,205 reviews
Korean Air
8.4
Very good
1,205 reviews

Boarding

8.5

Comfort

8.3

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

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
8.1
Very good
505 reviews
Korean Air
8.4
Very good
1,205 reviews

Boarding

8.5

Comfort

8.3

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

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
8,314 reviews
Korean Air
8.4
Very good
1,205 reviews

Boarding

8.5

Comfort

8.3

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

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
9,455 reviews
Korean Air
8.4
Very good
1,205 reviews

Boarding

8.5

Comfort

8.3

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

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
10,830 reviews
Korean Air
8.4
Very good
1,205 reviews

Boarding

8.5

Comfort

8.3

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

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. 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.

  • How long is the flight from Portland to Seoul?

    For as low as $1,159, Air Canada can have you in Seoul from Portland in 22h 15m. Airlines will cover a distance of 5254 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, Air Canada ($791), Alaska Airlines ($815), and Delta ($849) offers the cheapest pricing from Portland to Seoul. Air Canada 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 Delta, which is currently one of the cheapest options available, starting at $432. Air Canada flights start at $450 while deals on United Airlines start at $450 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 $33 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, April is the cheapest month in which you can book a flight from Portland to Seoul (average of $780). Flying from Portland to Seoul in July is currently the most expensive (average of $1,205). 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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Alternative routes for Portland to Seoul

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Incheon Intl flights
Boise to Incheon Intl flights

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 March 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$791Average$1,188FlexibilityNo cancel feeOn-time67%
Alaska AirlinesCheapest$815Average$988FlexibilityNo cancel feeOn-time75%
DeltaCheapest$849Average$1,227FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$910Average$1,209FlexibilityNo cancel feeOn-time69%
Asiana AirlinesCheapest$914Average$1,139FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$1,082Average$1,540FlexibilityNo cancel feeOn-time81%

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