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Cheap flights from Portland to Seoul from $427

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Seoul departing on 7/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
7:45 pm - 4:05 pm
PDX
-
ICN
28h 20m
1 stop
Air Canada Logo
5:45 pm - 7:10 pm
ICN
-
PDX
17h 25m
1 stop
$907Air Canada
Tue, May 12 - Wed, Jun 3
Air Canada Logo
7:45 pm - 4:05 pm
PDX
-
ICN
28h 20m
1 stop
Air Canada Logo
5:45 pm - 2:51 pm
ICN
-
PDX
13h 06m
1 stop
$908Air Canada
Tue, Sep 22 - Thu, Oct 8
Multiple Airlines Logo
9:54 am - 3:50 pm
PDX
-
ICN
37h 56m
1 stop
Multiple Airlines Logo
12:55 pm - 10:13 pm
ICN
-
PDX
49h 18m
2 stops
$914Multiple Airlines
Sun, Apr 19 - Fri, May 8
Air Canada Logo
3:30 pm - 4:05 pm
PDX
-
ICN
32h 35m
1 stop
Air Canada Logo
5:45 pm - 9:31 am
ICN
-
PDX
31h 46m
1 stop
$917Air Canada
Wed, Sep 16 - Mon, Sep 21
Multiple Airlines Logo
10:10 am - 9:40 pm
PDX
-
ICN
19h 30m
2 stops
Multiple Airlines Logo
5:45 pm - 2:51 pm
ICN
-
PDX
13h 06m
1 stop
$923Multiple Airlines
Wed, Sep 16 - Tue, Sep 22
Multiple Airlines Logo
10:51 am - 8:10 pm
PDX
-
ICN
17h 19m
1 stop
Multiple Airlines Logo
7:10 am - 9:50 am
ICN
-
PDX
42h 40m
2 stops
$927Multiple Airlines
Wed, Apr 22 - Wed, May 27
Asiana Airlines Logo
3:30 pm - 4:05 pm
PDX
-
ICN
32h 35m
1 stop
Asiana Airlines Logo
5:45 pm - 2:51 pm
ICN
-
PDX
13h 06m
1 stop
$931Asiana Airlines
Sun, Aug 30 - Wed, Sep 30
Asiana Airlines Logo
3:30 pm - 4:05 pm
PDX
-
ICN
32h 35m
1 stop
Asiana Airlines Logo
5:45 pm - 7:06 pm
ICN
-
PDX
17h 21m
1 stop
$934Asiana Airlines
Sun, Sep 13 - Mon, Sep 21
Multiple Airlines Logo
7:45 pm - 2:05 pm
PDX
-
ICN
26h 20m
2 stops
Multiple Airlines Logo
5:45 pm - 7:06 pm
ICN
-
PDX
17h 21m
1 stop
$935Multiple Airlines
Tue, Sep 22 - Thu, Oct 8
Asiana Airlines Logo
7:45 pm - 4:05 pm
PDX
-
ICN
28h 20m
1 stop
Asiana Airlines Logo
5:45 pm - 7:05 pm
ICN
-
PDX
17h 20m
1 stop
$938Asiana Airlines
Tue, May 12 - Wed, Jun 3

Asiana Airlines flights from Portland to Incheon Intl Airport

Our best Asiana Airlines deals on Portland to Incheon Intl Airport flight tickets
Asiana Airlines
Aug 30
PDX3:30 pmPortland
32h 35m
1 stop
ICN4:05 pmIncheon Intl
Sep 30
ICN5:45 pmIncheon Intl
13h 06m
1 stop
PDX2:51 pmPortland
$931
Asiana Airlines
Sep 13
PDX3:30 pmPortland
32h 35m
1 stop
ICN4:05 pmIncheon Intl
Sep 21
ICN5:45 pmIncheon Intl
17h 21m
1 stop
PDX7:06 pmPortland
$934
Asiana Airlines
May 12
PDX7:45 pmPortland
28h 20m
1 stop
ICN4:05 pmIncheon Intl
Jun 3
ICN5:45 pmIncheon Intl
17h 20m
1 stop
PDX7:05 pmPortland
$938

United Airlines flights from Portland to Incheon Intl Airport

Our best United Airlines deals on Portland to Incheon Intl Airport flight tickets
United Airlines
May 6
PDX5:20 amPortland
17h 40m
1 stop
ICN3:00 pmIncheon Intl
Jun 4
ICN11:30 amIncheon Intl
16h 38m
1 stop
PDX12:08 pmPortland
$963
United Airlines
May 7
PDX7:45 pmPortland
16h 35m
1 stop
ICN4:20 amIncheon Intl
Jun 7
ICN11:30 amIncheon Intl
19h 43m
2 stops
PDX3:13 pmPortland
$968
United Airlines
Apr 18
PDX7:14 pmPortland
17h 06m
1 stop
ICN4:20 amIncheon Intl
Apr 24
ICN4:50 pmIncheon Intl
36h 19m
2 stops
PDX1:09 pmPortland
$981

momondo Fare Finder

 
Customize your flight search to find flights from Portland to Incheon Intl Airport 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, momondo users made 832,500 searches. Data last updated March 29, 2026.
Use the filters below to find and compare flights from Portland to Incheon Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandIncheon

PDX - ICN

PDXICN

Portland

Tue 5/12

7:45 pm-4:05 pm

1 stop28h 20m

Incheon Intl

Wed 6/3

5:45 pm-7:10 pm

1 stop17h 25m

$907

PortlandIncheon

PDX - ICN

PDXICN

Portland

Tue 9/22

7:45 pm-4:05 pm

1 stop28h 20m

Incheon Intl

Thu 10/8

5:45 pm-2:51 pm

1 stop13h 06m

$908

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sun 4/19

9:54 am-3:50 pm

1 stop37h 56m

Incheon Intl

Fri 5/8

12:55 pm-10:13 pm

2 stops49h 18m

$914

PortlandIncheon

PDX - ICN

PDXICN

Portland

Wed 9/16

3:30 pm-4:05 pm

1 stop32h 35m

Incheon Intl

Mon 9/21

5:45 pm-9:31 am

1 stop31h 46m

$917
Quickest round-trip

PortlandIncheon

PDX - ICN

PDXICN

Portland

Wed 9/16

10:10 am-9:40 pm

2 stops19h 30m

Incheon Intl

Tue 9/22

5:45 pm-2:51 pm

1 stop13h 06m

$923

PortlandIncheon

PDX - ICN

PDXICN

Portland

Wed 4/22

10:51 am-8:10 pm

1 stop17h 19m

Incheon Intl

Wed 5/27

7:10 am-9:50 am

2 stops42h 40m

$927

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sun 8/30

3:30 pm-4:05 pm

1 stop32h 35m

Incheon Intl

Wed 9/30

5:45 pm-2:51 pm

1 stop13h 06m

$931

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sun 9/13

3:30 pm-4:05 pm

1 stop32h 35m

Incheon Intl

Mon 9/21

5:45 pm-7:06 pm

1 stop17h 21m

$934

PortlandIncheon

PDX - ICN

PDXICN

Portland

Tue 9/22

7:45 pm-2:05 pm

2 stops26h 20m

Incheon Intl

Thu 10/8

5:45 pm-7:06 pm

1 stop17h 21m

$935

PortlandIncheon

PDX - ICN

PDXICN

Portland

Tue 5/12

7:45 pm-4:05 pm

1 stop28h 20m

Incheon Intl

Wed 6/3

5:45 pm-7:05 pm

1 stop17h 20m

$938

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Portland to Incheon Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Portland and Incheon Intl Airport?

What is the cheapest month to fly to Incheon Intl Airport?

The cheapest month to fly to Incheon Intl Airport from Portland is in February. Flight prices, which tend to average around $956, are often lower during this time because this is during the off-season. If you are unable to visit Incheon Intl Airport during the month of February, then departing from Portland during the month August is also very affordable. Most momondo users find prices during this month for around $1,014.

How far in advance should I book a flight to Incheon Intl Airport?

You are more likely to see cheaper flights to Incheon Intl Airport from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Incheon Intl Airport for around $1,196 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Incheon Intl Airport from Portland for as low as $937 on momondo.

How have Portland to Incheon Intl Airport flight prices changed over time?

As of March 2026, prices for Portland to Incheon Intl Airport flights are approximately 3% cheaper when compared to flights at the same time last year.

When to book flights from Portland to Incheon Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Incheon Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Incheon Intl Airport (PDX to ICN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Incheon Intl Airport

Fastest flight time

17h 05m

Direct flights

None
The fastest flight from Portland to Incheon Intl Airport takes 17h 05m
There are no direct flights from Portland to Incheon Intl Airport. There are no popular flight routes from Portland to Incheon Intl Airport.
Search flight deals

  • How far is Portland to Incheon Intl by plane?

    Portland and Incheon Intl are 5272.8 mi apart from one another. Flights usually cover this in 17h 05m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Portland Airport to Incheon Intl Airport?

    Prices for flights from Portland Airport to Incheon Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Portland Airport to Incheon Intl Airport?

  • How old do you have to be to fly from Portland Airport to Incheon Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Incheon Intl Airport.

  • What documentation or ID do you need to fly to Incheon Intl Airport?

    The travel and health documents you'll need for your trip to Incheon Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Incheon Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Portland to Incheon Intl Airport?

Best airlines flying from Portland to Incheon Intl Airport

Compare and see reviews for airlines that fly from Portland to Incheon Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $791Free CancellationRating
7.1
10,856 reviews
Search Air Canada flights
Alaska AirlinesPriceFrom $815Free CancellationRating
7.9
12,134 reviews
Search Alaska Airlines flights
DeltaPriceFrom $849Free CancellationRating
7.9
8,359 reviews
Search Delta flights
Asiana AirlinesPriceFrom $881Free CancellationRating
8.1
507 reviews
Search Asiana Airlines flights
United AirlinesPriceFrom $910Free CancellationRating
7.4
9,508 reviews
Search United Airlines flights
Korean AirPriceFrom $1,082Free CancellationRating
8.4
1,203 reviews
Search Korean Air flights

Traveling to a place near Seoul?

Book flights to Seoul if you plan to visit one of these locations
Suwon
Daejeon
Seongnam
Anyang

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Seoul?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Portland to Seoul for you.

Can I find flights from Portland to Seoul with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Seoul from Portland with this policy.

How can momondo help me find flights from Portland to Seoul?

Once all potential Portland to Seoul flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Portland to Seoul right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Portland to Seoul flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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