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Cheap flights from Portland to Seoul from $339

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 1/13. 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
0 bags

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Find the cheapest flights from Portland to Seoul

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:30 am - 6:35 pm
PDX
-
ICN
15h 05m1 stop
Multiple Airlines Logo
8:35 pm - 4:34 pm
ICN
-
PDX
12h 59m1 stop
$615Multiple Airlines
Sun, Jan 25 - Sat, Jan 31
Multiple Airlines Logo
5:35 pm - 6:35 pm
PDX
-
ICN
32h 00m1 stop
Multiple Airlines Logo
8:35 pm - 9:29 am
ICN
-
PDX
29h 54m1 stop
$616Multiple Airlines
Fri, Jan 16 - Sun, Jan 25
Delta Logo
7:10 am - 4:30 pm
PDX
-
ICN
16h 20m1 stop
Delta Logo
8:05 pm - 8:55 pm
ICN
-
PDX
17h 50m1 stop
$712Delta
Tue, Jan 20 - Tue, Feb 17
Delta Logo
5:30 am - 4:30 pm
PDX
-
ICN
18h 00m1 stop
Delta Logo
8:05 pm - 4:30 pm
ICN
-
PDX
13h 25m1 stop
$714Delta
Mon, Feb 2 - Mon, Feb 9
Multiple Airlines Logo
10:30 am - 6:35 pm
PDX
-
ICN
15h 05m1 stop
Multiple Airlines Logo
8:35 pm - 5:59 pm
ICN
-
PDX
14h 24m1 stop
$716Multiple Airlines
Sun, Feb 1 - Fri, Feb 6
Multiple Airlines Logo
2:38 pm - 6:35 pm
PDX
-
ICN
34h 57m1 stop
Multiple Airlines Logo
8:35 pm - 8:47 pm
ICN
-
PDX
17h 12m1 stop
$721Multiple Airlines
Tue, Jan 20 - Thu, Feb 5
Multiple Airlines Logo
7:00 pm - 5:10 pm
PDX
-
ICN
29h 10m1 stop
Multiple Airlines Logo
9:50 am - 6:30 pm
ICN
-
PDX
25h 40m2 stops
$733Multiple Airlines
Tue, Jan 20 - Tue, Feb 17
Multiple Airlines Logo
9:30 pm - 6:35 pm
PDX
-
ICN
28h 05m1 stop
Multiple Airlines Logo
8:35 pm - 10:46 pm
ICN
-
PDX
19h 11m1 stop
$746Multiple Airlines
Fri, Jan 16 - Sun, Jan 25
Multiple Airlines Logo
5:40 pm - 6:35 pm
PDX
-
ICN
31h 55m1 stop
Multiple Airlines Logo
8:35 pm - 10:41 pm
ICN
-
PDX
18h 06m1 stop
$749Multiple Airlines
Thu, Mar 5 - Mon, Mar 9
Multiple Airlines Logo
7:10 am - 6:35 pm
PDX
-
ICN
18h 25m1 stop
Multiple Airlines Logo
9:20 pm - 8:27 pm
ICN
-
PDX
40h 07m2 stops
$754Multiple Airlines
Fri, Jan 16 - Sun, Jan 25

Delta flights from Portland to Incheon Intl Airport

Our best Delta deals on Portland to Incheon Intl Airport flight tickets
Delta
Jan 20
PDX7:10 amPortland
16h 20m
1 stop
ICN4:30 pmIncheon Intl
Feb 17
ICN8:05 pmIncheon Intl
17h 50m
1 stop
PDX8:55 pmPortland
$712
Find similar
Delta
Feb 2
PDX5:30 amPortland
18h 00m
1 stop
ICN4:30 pmIncheon Intl
Feb 9
ICN8:05 pmIncheon Intl
13h 25m
1 stop
PDX4:30 pmPortland
$714
Find similar
Delta
Dec 27
PDX9:19 amPortland
14h 11m
1 stop
ICN4:30 pmIncheon Intl
Jan 15
ICN8:05 pmIncheon Intl
15h 45m
1 stop
PDX6:50 pmPortland
$916
Find similar

Air Canada flights from Portland to Incheon Intl Airport

Our best Air Canada deals on Portland to Incheon Intl Airport flight tickets
Air Canada
Mar 30
PDX9:50 amPortland
14h 15m
1 stop
ICN4:05 pmIncheon Intl
Jun 1
ICN5:45 pmIncheon Intl
17h 20m
1 stop
PDX7:05 pmPortland
$795
Find similar
Air Canada
Apr 30
PDX9:50 amPortland
14h 15m
1 stop
ICN4:05 pmIncheon Intl
May 28
ICN5:45 pmIncheon Intl
13h 00m
1 stop
PDX2:45 pmPortland
$814
Find similar
Air Canada
Apr 30
PDX9:50 amPortland
14h 15m
1 stop
ICN4:05 pmIncheon Intl
May 28
ICN5:45 pmIncheon Intl
13h 00m
1 stop
PDX2:45 pmPortland
$846
Find similar

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 December 21, 2025.
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

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sun 1/25

10:30 am-6:35 pm

1 stop15h 05m

Incheon Intl

Sat 1/31

8:35 pm-4:34 pm

1 stop12h 59m

$615

PortlandIncheon

PDX - ICN

PDXICN

Portland

Fri 1/16

5:35 pm-6:35 pm

1 stop32h 00m

Incheon Intl

Sun 1/25

8:35 pm-9:29 am

1 stop29h 54m

$616

PortlandIncheon

PDX - ICN

PDXICN

Portland

Tue 1/20

7:10 am-4:30 pm

1 stop16h 20m

Incheon Intl

Tue 2/17

8:05 pm-8:55 pm

1 stop17h 50m

$712

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 2/2

5:30 am-4:30 pm

1 stop18h 00m

Incheon Intl

Mon 2/9

8:05 pm-4:30 pm

1 stop13h 25m

$714

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sun 2/1

10:30 am-6:35 pm

1 stop15h 05m

Incheon Intl

Fri 2/6

8:35 pm-5:59 pm

1 stop14h 24m

$716

PortlandIncheon

PDX - ICN

PDXICN

Portland

Tue 1/20

2:38 pm-6:35 pm

1 stop34h 57m

Incheon Intl

Thu 2/5

8:35 pm-8:47 pm

1 stop17h 12m

$721

PortlandIncheon

PDX - ICN

PDXICN

Portland

Tue 1/20

7:00 pm-5:10 pm

1 stop29h 10m

Incheon Intl

Tue 2/17

9:50 am-6:30 pm

2 stops25h 40m

$733

PortlandIncheon

PDX - ICN

PDXICN

Portland

Fri 1/16

9:30 pm-6:35 pm

1 stop28h 05m

Incheon Intl

Sun 1/25

8:35 pm-10:46 pm

1 stop19h 11m

$746

PortlandIncheon

PDX - ICN

PDXICN

Portland

Thu 3/5

5:40 pm-6:35 pm

1 stop31h 55m

Incheon Intl

Mon 3/9

8:35 pm-10:41 pm

1 stop18h 06m

$749

PortlandIncheon

PDX - ICN

PDXICN

Portland

Fri 1/16

7:10 am-6:35 pm

1 stop18h 25m

Incheon Intl

Sun 1/25

9:20 pm-8:27 pm

2 stops40h 07m

$754

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seoul from

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 $907, 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 April is also very affordable. Most momondo users find prices during this month for around $991.

What is the cheapest day to depart on your flight to Incheon Intl Airport?

The cheapest day to depart from Portland to Incheon Intl Airport is on a Monday when prices can be found for as low as $1,346. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,477. These prices are subject to change though, so be sure to set up a Price Alert for flights to Incheon Intl Airport.

What is the cheapest time of day to depart on your flight to Incheon Intl Airport?

In the afternoon is the cheapest time of day to fly from Portland to Incheon Intl Airport when you can find flight prices for as low as $886. Flying to Incheon Intl Airport in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $1,498 on average. Flights to Incheon Intl Airport from Portland in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $1,166 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 $982 on momondo.

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

As of December 2025, prices for Portland to Incheon Intl Airport flights are approximately 27% 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

14h 11m

Direct flights

None
The fastest flight from Portland to Incheon Intl Airport takes 14h 11m
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 14h 11m, 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
Hawaiian AirlinesPriceFrom $767Free CancellationRating
7.8
2,821 reviews
Search Hawaiian Airlines flights
Air CanadaPriceFrom $805Free CancellationRating
7.1
10,551 reviews
Search Air Canada flights
Alaska AirlinesPriceFrom $815Free CancellationRating
8.0
11,497 reviews
Search Alaska Airlines flights
DeltaPriceFrom $849Free CancellationRating
7.9
8,014 reviews
Search Delta flights
United AirlinesPriceFrom $907Free CancellationRating
7.4
9,102 reviews
Search United Airlines flights
Asiana AirlinesPriceFrom $912Free CancellationRating
8.2
495 reviews
Search Asiana Airlines flights
Korean AirPriceFrom $1,082Free CancellationRating
8.4
1,185 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
Seongnam
Daejeon
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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