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Cheap flights from Portland to Seoul from $428

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 3/15. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
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
$722Multiple Airlines
Tue, Jan 20 - Tue, Feb 17
Multiple Airlines Logo
9:50 am - 1:35 am
PDX
-
ICN
22h 45m2 stops
Multiple Airlines Logo
6:40 am - 6:30 pm
ICN
-
PDX
28h 50m2 stops
$762Multiple Airlines
Tue, Feb 10 - Tue, Feb 17
Multiple Airlines Logo
9:50 am - 4:05 pm
PDX
-
ICN
14h 15m1 stop
Multiple Airlines Logo
2:30 am - 9:30 am
ICN
-
PDX
23h 00m2 stops
$780Multiple Airlines
Mon, Mar 30 - Sun, May 31
Multiple Airlines Logo
9:50 am - 5:10 pm
PDX
-
ICN
14h 20m1 stop
Multiple Airlines Logo
2:35 pm - 6:30 pm
ICN
-
PDX
20h 55m2 stops
$800Multiple Airlines
Mon, Feb 2 - Wed, Feb 11
Multiple Airlines Logo
9:50 am - 10:50 pm
PDX
-
ICN
20h 00m2 stops
Multiple Airlines Logo
9:50 am - 6:30 pm
ICN
-
PDX
25h 40m2 stops
$802Multiple Airlines
Tue, Jan 20 - Tue, Feb 17
Multiple Airlines Logo
9:50 am - 5:10 pm
PDX
-
ICN
14h 20m1 stop
Multiple Airlines Logo
2:35 pm - 6:30 pm
ICN
-
PDX
20h 55m2 stops
$804Multiple Airlines
Wed, Feb 18 - Wed, Feb 25
Multiple Airlines Logo
9:50 am - 1:20 am
PDX
-
ICN
22h 30m2 stops
Multiple Airlines Logo
5:55 pm - 2:40 pm
ICN
-
PDX
12h 45m1 stop
$809Multiple Airlines
Wed, Feb 25 - Tue, Mar 10
Multiple Airlines Logo
9:50 am - 4:05 pm
PDX
-
ICN
14h 15m1 stop
Multiple Airlines Logo
2:30 am - 9:30 am
ICN
-
PDX
23h 00m2 stops
$810Multiple Airlines
Thu, Apr 30 - Sat, May 9
Multiple Airlines Logo
9:53 am - 5:10 am
PDX
-
ICN
27h 17m1 stop
Multiple Airlines Logo
9:20 pm - 1:46 pm
ICN
-
PDX
32h 26m1 stop
$812Multiple Airlines
Sun, Mar 8 - Tue, Mar 17
Air Canada Logo
7:00 pm - 5:10 pm
PDX
-
ICN
29h 10m1 stop
Air Canada Logo
6:55 pm - 2:40 pm
ICN
-
PDX
12h 45m1 stop
$818Air Canada
Tue, Jan 20 - Tue, Feb 17

Air Canada flights from Portland to Incheon Intl Airport

Our best Air Canada deals on Portland to Incheon Intl Airport flight tickets
Air Canada
Jan 20
PDX7:00 pmPortland
29h 10m
1 stop
ICN5:10 pmIncheon Intl
Feb 17
ICN6:55 pmIncheon Intl
12h 45m
1 stop
PDX2:40 pmPortland
$818
Find similar
Air Canada
Mar 30
PDX7:05 pmPortland
29h 00m
1 stop
ICN4:05 pmIncheon Intl
Jun 1
ICN5:45 pmIncheon Intl
17h 20m
1 stop
PDX7:05 pmPortland
$819
Find similar
Air Canada
Apr 30
PDX9:50 amPortland
14h 15m
1 stop
ICN4:05 pmIncheon Intl
May 28
ICN5:45 pmIncheon Intl
17h 20m
1 stop
PDX7:05 pmPortland
$840
Find similar

American Airlines flights from Portland to Incheon Intl Airport

Our best American Airlines deals on Portland to Incheon Intl Airport flight tickets
American Airlines
Mar 22
PDX10:59 pmPortland
24h 56m
1 stop
ICN3:55 pmIncheon Intl
Apr 5
ICN5:25 pmIncheon Intl
23h 25m
1 stop
PDX12:50 amPortland
$916
Find similar
American Airlines
Mar 19
PDX11:59 pmPortland
23h 56m
1 stop
ICN3:55 pmIncheon Intl
Apr 1
ICN5:25 pmIncheon Intl
20h 37m
1 stop
PDX10:02 pmPortland
$926
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 28, 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

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

$722

PortlandIncheon

PDX - ICN

PDXICN

Portland

Tue 2/10

9:50 am-1:35 am

2 stops22h 45m

Incheon Intl

Tue 2/17

6:40 am-6:30 pm

2 stops28h 50m

$762

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 3/30

9:50 am-4:05 pm

1 stop14h 15m

Incheon Intl

Sun 5/31

2:30 am-9:30 am

2 stops23h 00m

$780

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 2/2

9:50 am-5:10 pm

1 stop14h 20m

Incheon Intl

Wed 2/11

2:35 pm-6:30 pm

2 stops20h 55m

$800

PortlandIncheon

PDX - ICN

PDXICN

Portland

Tue 1/20

9:50 am-10:50 pm

2 stops20h 00m

Incheon Intl

Tue 2/17

9:50 am-6:30 pm

2 stops25h 40m

$802

PortlandIncheon

PDX - ICN

PDXICN

Portland

Wed 2/18

9:50 am-5:10 pm

1 stop14h 20m

Incheon Intl

Wed 2/25

2:35 pm-6:30 pm

2 stops20h 55m

$804

PortlandIncheon

PDX - ICN

PDXICN

Portland

Wed 2/25

9:50 am-1:20 am

2 stops22h 30m

Incheon Intl

Tue 3/10

5:55 pm-2:40 pm

1 stop12h 45m

$809

PortlandIncheon

PDX - ICN

PDXICN

Portland

Thu 4/30

9:50 am-4:05 pm

1 stop14h 15m

Incheon Intl

Sat 5/9

2:30 am-9:30 am

2 stops23h 00m

$810

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sun 3/8

9:53 am-5:10 am

1 stop27h 17m

Incheon Intl

Tue 3/17

9:20 pm-1:46 pm

1 stop32h 26m

$812

PortlandIncheon

PDX - ICN

PDXICN

Portland

Tue 1/20

7:00 pm-5:10 pm

1 stop29h 10m

Incheon Intl

Tue 2/17

6:55 pm-2:40 pm

1 stop12h 45m

$818

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 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

15h 45m

Direct flights

None
The fastest flight from Portland to Incheon Intl Airport takes 15h 45m
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 15h 45m, 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
2,819 reviews
Search Hawaiian Airlines flights
Air CanadaPriceFrom $805Free CancellationRating
7.1
10,562 reviews
Search Air Canada flights
Alaska AirlinesPriceFrom $815Free CancellationRating
8.0
11,550 reviews
Search Alaska Airlines flights
DeltaPriceFrom $849Free CancellationRating
7.9
8,022 reviews
Search Delta flights
United AirlinesPriceFrom $907Free CancellationRating
7.4
9,117 reviews
Search United Airlines flights
Asiana AirlinesPriceFrom $912Free CancellationRating
8.2
501 reviews
Search Asiana Airlines flights
Korean AirPriceFrom $1,082Free CancellationRating
8.4
1,184 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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