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Cheap flights from Portland to Seoul from $368

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 2/1. 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.
Air Canada Logo
9:50 am - 5:10 pmPDX-ICN
14h 20m1 stop
Air Canada Logo
5:55 pm - 2:40 pmICN-PDX
13h 45m1 stop
$691Air Canada
Find Deal
Sun, Nov 30 - Sun, Dec 21
Alaska Airlines Logo
7:10 am - 6:35 pmPDX-ICN
18h 25m1 stop
Alaska Airlines Logo
8:35 pm - 12:09 amICN-PDX
20h 34m1 stop
$716Alaska Airlines
Find Deal
Sun, Jan 25 - Thu, Jan 29
Alaska Airlines Logo
1:38 pm - 6:35 pmPDX-ICN
35h 57m1 stop
Alaska Airlines Logo
8:35 pm - 10:46 pmICN-PDX
19h 11m1 stop
$721Alaska Airlines
Find Deal
Tue, Jan 20 - Thu, Feb 5
Multiple Airlines Logo
9:50 am - 9:35 pmPDX-ICN
18h 45m1 stop
Multiple Airlines Logo
9:20 pm - 6:30 pmICN-PDX
14h 10m1 stop
$767Multiple Airlines
Find Deal
Sun, Jan 18 - Sat, Jan 31
Multiple Airlines Logo
9:48 am - 9:35 pmPDX-ICN
42h 47m2 stops
Multiple Airlines Logo
1:20 pm - 4:37 pmICN-PDX
20h 17m1 stop
$795Multiple Airlines
Find Deal
Sat, Dec 6 - Fri, Dec 12
Air Canada Logo
9:50 am - 5:10 pmPDX-ICN
14h 20m1 stop
Air Canada Logo
5:55 pm - 2:40 pmICN-PDX
13h 45m1 stop
$799Air Canada
Find Deal
Mon, Dec 1 - Wed, Dec 10
Air Canada Logo
3:15 pm - 4:00 pmPDX-ICN
31h 45m1 stop
Air Canada Logo
6:55 pm - 2:40 pmICN-PDX
12h 45m1 stop
$801Air Canada
Find Deal
Wed, Dec 10 - Thu, Dec 18
Multiple Airlines Logo
5:20 am - 2:15 pmPDX-ICN
39h 55m2 stops
Multiple Airlines Logo
1:20 pm - 4:37 pmICN-PDX
20h 17m1 stop
$806Multiple Airlines
Find Deal
Mon, Dec 1 - Thu, Dec 11
Multiple Airlines Logo
9:50 am - 10:25 pmPDX-ICN
19h 35m2 stops
Multiple Airlines Logo
5:55 pm - 2:40 pmICN-PDX
13h 45m1 stop
$812Multiple Airlines
Find Deal
Tue, Dec 2 - Fri, Dec 12
Alaska Airlines Logo
10:30 am - 6:35 pmPDX-ICN
15h 05m1 stop
Alaska Airlines Logo
8:35 pm - 10:41 pmICN-PDX
19h 06m1 stop
$816Alaska Airlines
Find Deal
Fri, Feb 20 - Mon, Feb 23

Air Canada flights from Portland to Incheon Intl Airport

Our best Air Canada deals on Portland to Incheon Intl Airport flight tickets
Air Canada
Nov 30
PDX9:50 amPortland
14h 20m
1 stop
ICN5:10 pmIncheon Intl
Dec 21
ICN5:55 pmIncheon Intl
13h 45m
1 stop
PDX2:40 pmPortland
$691
Find similar
Air Canada
Dec 1
PDX9:50 amPortland
14h 20m
1 stop
ICN5:10 pmIncheon Intl
Dec 10
ICN5:55 pmIncheon Intl
13h 45m
1 stop
PDX2:40 pmPortland
$799
Find similar
Air Canada
Dec 10
PDX3:15 pmPortland
31h 45m
1 stop
ICN4:00 pmIncheon Intl
Dec 18
ICN6:55 pmIncheon Intl
12h 45m
1 stop
PDX2:40 pmPortland
$801
Find similar

United Airlines flights from Portland to Incheon Intl Airport

Our best United Airlines deals on Portland to Incheon Intl Airport flight tickets
United Airlines
Dec 1
PDX4:02 pmPortland
20h 38m
2 stops
ICN5:40 amIncheon Intl
Dec 11
ICN6:00 pmIncheon Intl
20h 15m
2 stops
PDX9:15 pmPortland
$920
Find similar
United Airlines
Dec 2
PDX1:14 pmPortland
23h 26m
2 stops
ICN5:40 amIncheon Intl
Dec 8
ICN6:00 pmIncheon Intl
20h 15m
2 stops
PDX9:15 pmPortland
$965
Find similar
United Airlines
Dec 2
PDX1:14 pmPortland
23h 26m
2 stops
ICN5:40 amIncheon Intl
Dec 5
ICN12:45 pmIncheon Intl
25h 30m
2 stops
PDX9:15 pmPortland
$1,028
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 November 19, 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 11/30

9:50 am-5:10 pm

1 stop14h 20m

Incheon Intl

Sun 12/21

5:55 pm-2:40 pm

1 stop13h 45m

$691

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-12:09 am

1 stop20h 34m

$716

PortlandIncheon

PDX - ICN

PDXICN

Portland

Tue 1/20

1:38 pm-6:35 pm

1 stop35h 57m

Incheon Intl

Thu 2/5

8:35 pm-10:46 pm

1 stop19h 11m

$721

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sun 1/18

9:50 am-9:35 pm

1 stop18h 45m

Incheon Intl

Sat 1/31

9:20 pm-6:30 pm

1 stop14h 10m

$767

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sat 12/6

9:48 am-9:35 pm

2 stops42h 47m

Incheon Intl

Fri 12/12

1:20 pm-4:37 pm

1 stop20h 17m

$795

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 12/1

9:50 am-5:10 pm

1 stop14h 20m

Incheon Intl

Wed 12/10

5:55 pm-2:40 pm

1 stop13h 45m

$799

PortlandIncheon

PDX - ICN

PDXICN

Portland

Wed 12/10

3:15 pm-4:00 pm

1 stop31h 45m

Incheon Intl

Thu 12/18

6:55 pm-2:40 pm

1 stop12h 45m

$801

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 12/1

5:20 am-2:15 pm

2 stops39h 55m

Incheon Intl

Thu 12/11

1:20 pm-4:37 pm

1 stop20h 17m

$806

PortlandIncheon

PDX - ICN

PDXICN

Portland

Tue 12/2

9:50 am-10:25 pm

2 stops19h 35m

Incheon Intl

Fri 12/12

5:55 pm-2:40 pm

1 stop13h 45m

$812

PortlandIncheon

PDX - ICN

PDXICN

Portland

Fri 2/20

10:30 am-6:35 pm

1 stop15h 05m

Incheon Intl

Mon 2/23

8:35 pm-10:41 pm

1 stop19h 06m

$816

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 $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 April is also very affordable. Most momondo users find prices during this month for around $1,003.

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 $1,176 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 $994 on momondo.

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

As of November 2025, prices for Portland to Incheon Intl Airport flights are approximately 7% 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

Direct flights

None
There are no direct flights from Portland to Incheon Intl Airport. There are no popular flight routes from Portland to Incheon Intl Airport.
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  • 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 20m, 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
2,809 reviews
Search Hawaiian Airlines flights
Air CanadaPriceFrom $809Free CancellationRating
7.1
10,462 reviews
Search Air Canada flights
Alaska AirlinesPriceFrom $847Free CancellationRating
8.0
11,316 reviews
Search Alaska Airlines flights
DeltaPriceFrom $849Free CancellationRating
7.9
8,003 reviews
Search Delta flights
United AirlinesPriceFrom $907Free CancellationRating
7.4
9,019 reviews
Search United Airlines flights
Asiana AirlinesPriceFrom $912Free CancellationRating
8.2
487 reviews
Search Asiana Airlines flights
Korean AirPriceFrom $1,082Free CancellationRating
8.4
1,167 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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