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Cheap flights from Portland to Seoul from $374

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 9/2. 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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Find the cheapest flights from Portland to Seoul

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
2:30 pm - 6:45 pmPDX  Portland-ICN Incheon Intl
36h 15m1 stop Calgary
Multiple Airlines Logo
1:30 pm - 9:25 amICN  Incheon Intl-PDX Portland
35h 55m2 stops Xiamen Gaoqi Intl Los Angeles
$779Multiple Airlines
Wed, Aug 26 - Tue, Sep 8
Multiple Airlines Logo
2:30 pm - 6:45 pmPDX  Portland-ICN Incheon Intl
36h 15m1 stop Calgary
Multiple Airlines Logo
7:35 pm - 8:50 pmICN  Incheon Intl-PDX Portland
17h 15m2 stops Seattle/Tacoma Intl San Francisco
$881Multiple Airlines
Wed, Sep 2 - Sat, Sep 12
Delta Logo
5:30 am - 4:50 pmPDX  Portland-ICN Incheon Intl
19h 20m1 stop Seattle/Tacoma Intl
Delta Logo
6:45 pm - 5:04 pmICN  Incheon Intl-PDX Portland
14h 19m1 stop Seattle/Tacoma Intl
$1,107Delta
Wed, Oct 14 - Thu, Oct 29
Delta Logo
11:25 am - 5:55 pmPDX  Portland-ICN Incheon Intl
14h 30m1 stop Seattle/Tacoma Intl
Delta Logo
6:45 pm - 6:53 pmICN  Incheon Intl-PDX Portland
17h 08m1 stop Seattle/Tacoma Intl
$1,107Delta
Tue, Oct 27 - Tue, Nov 10
United Airlines Logo
7:00 am - 3:00 pmPDX  Portland-ICN Incheon Intl
16h 00m1 stop San Francisco
United Airlines Logo
11:30 am - 10:15 amICN  Incheon Intl-PDX Portland
14h 45m1 stop San Francisco
$1,107United Airlines
Mon, Oct 5 - Tue, Oct 13
United Airlines Logo
5:30 am - 3:00 pmPDX  Portland-ICN Incheon Intl
17h 30m1 stop San Francisco
United Airlines Logo
11:30 am - 6:25 pmICN  Incheon Intl-PDX Portland
22h 55m1 stop San Francisco
$1,107United Airlines
Wed, Sep 16 - Wed, Sep 23
Alaska Airlines Logo
7:09 am - 5:30 pmPDX  Portland-ICN Incheon Intl
18h 21m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
7:35 pm - 6:38 pmICN  Incheon Intl-PDX Portland
39h 03m1 stop Seattle/Tacoma Intl
$1,113Alaska Airlines
Mon, Sep 21 - Wed, Sep 30
Air Canada Logo
10:00 am - 4:10 pmPDX  Portland-ICN Incheon Intl
14h 10m1 stop Vancouver Intl
Air Canada Logo
6:55 pm - 2:41 pmICN  Incheon Intl-PDX Portland
12h 46m1 stop Vancouver Intl
$1,137Air Canada
Mon, Oct 26 - Tue, Nov 10
Alaska Airlines Logo
7:40 pm - 5:30 pmPDX  Portland-ICN Incheon Intl
29h 50m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
8:00 pm - 9:52 pmICN  Incheon Intl-PDX Portland
18h 52m1 stop Seattle/Tacoma Intl
$1,144Alaska Airlines
Sun, Aug 23 - Fri, Dec 18
Air Canada Logo
10:10 am - 4:05 pmPDX  Portland-ICN Incheon Intl
13h 55m1 stop Vancouver Intl
Air Canada Logo
5:45 pm - 7:11 pmICN  Incheon Intl-PDX Portland
17h 26m1 stop Vancouver Intl
$1,166Air Canada
Sat, Sep 5 - Sat, Sep 12

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Delta flights from Portland to Incheon Intl Airport

Our best Delta deals on Portland to Incheon Intl Airport flight tickets
Delta
Aug 17
PDX9:29 amPortland
15h 21m
1 stop
ICN4:50 pmIncheon Intl
Aug 26
ICN7:00 pmIncheon Intl
14h 14m
1 stop
PDX5:14 pmPortland
$1,897
Delta
Aug 17
PDX9:29 amPortland
15h 21m
1 stop
ICN4:50 pmIncheon Intl
Aug 26
ICN7:00 pmIncheon Intl
14h 14m
1 stop
PDX5:14 pmPortland
$1,906
Delta
Aug 17
PDX5:30 amPortland
19h 20m
1 stop
ICN4:50 pmIncheon Intl
Aug 26
ICN7:40 pmIncheon Intl
19h 59m
2 stops
PDX11:39 pmPortland
$2,324

Singapore Airlines flights from Portland to Incheon Intl Airport

Our best Singapore Airlines deals on Portland to Incheon Intl Airport flight tickets
Singapore Airlines
Aug 21
PDX7:01 amPortland
32h 44m
2 stops
ICN7:45 amIncheon Intl
Sep 1
ICN11:50 pmIncheon Intl
37h 00m
3 stops
PDX8:50 pmPortland
$2,072
Singapore Airlines
Aug 21
PDX7:01 amPortland
32h 44m
2 stops
ICN7:45 amIncheon Intl
Aug 26
ICN11:50 pmIncheon Intl
37h 00m
3 stops
PDX8:50 pmPortland
$2,073
Singapore Airlines
Aug 21
PDX5:38 pmPortland
29h 52m
2 stops
ICN3:30 pmIncheon Intl
Sep 1
ICN11:50 pmIncheon Intl
37h 00m
3 stops
PDX8:50 pmPortland
$2,208

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 August 9, 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 Portland - ICN Incheon Intl

PDXICN

Portland

Wed 8/26

2:30 pm-6:45 pm

1 stop36h 15m

Incheon Intl

Tue 9/8

1:30 pm-9:25 am

2 stops35h 55m

$779

PortlandIncheon

PDX Portland - ICN Incheon Intl

PDXICN

Portland

Wed 9/2

2:30 pm-6:45 pm

1 stop36h 15m

Incheon Intl

Sat 9/12

7:35 pm-8:50 pm

2 stops17h 15m

$881

PortlandIncheon

PDX Portland - ICN Incheon Intl

PDXICN

Portland

Wed 10/14

5:30 am-4:50 pm

1 stop19h 20m

Incheon Intl

Thu 10/29

6:45 pm-5:04 pm

1 stop14h 19m

$1,107

PortlandIncheon

PDX Portland - ICN Incheon Intl

PDXICN

Portland

Tue 10/27

11:25 am-5:55 pm

1 stop14h 30m

Incheon Intl

Tue 11/10

6:45 pm-6:53 pm

1 stop17h 08m

$1,107

PortlandIncheon

PDX Portland - ICN Incheon Intl

PDXICN

Portland

Mon 10/5

7:00 am-3:00 pm

1 stop16h 00m

Incheon Intl

Tue 10/13

11:30 am-10:15 am

1 stop14h 45m

$1,107

PortlandIncheon

PDX Portland - ICN Incheon Intl

PDXICN

Portland

Wed 9/16

5:30 am-3:00 pm

1 stop17h 30m

Incheon Intl

Wed 9/23

11:30 am-6:25 pm

1 stop22h 55m

$1,107

PortlandIncheon

PDX Portland - ICN Incheon Intl

PDXICN

Portland

Mon 9/21

7:09 am-5:30 pm

1 stop18h 21m

Incheon Intl

Wed 9/30

7:35 pm-6:38 pm

1 stop39h 03m

$1,113
Quickest round-trip

PortlandIncheon

PDX Portland - ICN Incheon Intl

PDXICN

Portland

Mon 10/26

10:00 am-4:10 pm

1 stop14h 10m

Incheon Intl

Tue 11/10

6:55 pm-2:41 pm

1 stop12h 46m

$1,137

PortlandIncheon

PDX Portland - ICN Incheon Intl

PDXICN

Portland

Sun 8/23

7:40 pm-5:30 pm

1 stop29h 50m

Incheon Intl

Fri 12/18

8:00 pm-9:52 pm

1 stop18h 52m

$1,144

PortlandIncheon

PDX Portland - ICN Incheon Intl

PDXICN

Portland

Sat 9/5

10:10 am-4:05 pm

1 stop13h 55m

Incheon Intl

Sat 9/12

5:45 pm-7:11 pm

1 stop17h 26m

$1,166

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?

Prices are currently low for flights on this route.

Typical prices usually range from $950 to $1,335.
The lowest price recently found on this route was $779.

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 $989, 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 $1,031.

How far in advance should I book a flight from Portland 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 $1,268 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 $1,054 on momondo.

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

As of August 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

14h 59m

Direct flights

None
The fastest flight from Portland to Incheon Intl Airport takes 14h 59m
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

Frequently asked questions about flying from Portland to Incheon Intl Airport

  • 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 59m, 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
Alaska AirlinesPriceFrom $161Free CancellationRating
7.9
12,792 reviews
Search Alaska Airlines flights
Air CanadaPriceFrom $791Free CancellationRating
7.1
11,458 reviews
Search Air Canada flights
Asiana AirlinesPriceFrom $881Free CancellationRating
8.1
554 reviews
Search Asiana Airlines flights
United AirlinesPriceFrom $915Free CancellationRating
7.4
10,098 reviews
Search United Airlines flights
DeltaPriceFrom $916Free CancellationRating
7.8
8,497 reviews
Search Delta flights
Korean AirPriceFrom $1,155Free CancellationRating
8.4
1,222 reviews
Search Korean Air flights

Traveling to a place near Seoul?

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