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Cheap flights from Oregon to Seoul from $409

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Oregon to Seoul departing on 9/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Oregon to Seoul

Cheap round-trip flights

Air Canada Logo
10:05 am - 4:05 pmPDX-ICN
14h 00m1 stop
Air Canada Logo
5:45 pm - 11:01 pmICN-PDX
21h 16m1 stop
$799Air Canada
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Mon, Sep 1 - Tue, Sep 16
Logo
10:05 am - 9:10 pmPDX-ICN
19h 05m2 stops
Logo
5:45 pm - 2:46 pmICN-PDX
13h 01m1 stop
$810
Find Deal
Mon, Sep 1 - Sat, Sep 13
Logo
10:00 am - 8:00 pmPDX-ICN
18h 00m2 stops
Logo
5:45 pm - 11:01 pmICN-PDX
21h 16m1 stop
$818
Find Deal
Tue, Sep 9 - Wed, Sep 17
Alaska Airlines Logo
5:40 pm - 7:00 pmPDX-ICN
33h 20m1 stop
Alaska Airlines Logo
9:25 pm - 10:40 pmICN-PDX
17h 15m1 stop
$847Alaska Airlines
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Thu, Aug 28 - Wed, Sep 10
Alaska Airlines Logo
7:34 pm - 7:00 pmPDX-ICN
31h 26m2 stops
Alaska Airlines Logo
9:25 pm - 10:40 pmICN-PDX
17h 15m1 stop
$866Alaska Airlines
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Mon, Aug 25 - Fri, Aug 29
United Airlines Logo
3:50 pm - 4:20 amPDX-ICN
20h 30m1 stop
United Airlines Logo
11:30 am - 2:42 pmICN-PDX
19h 12m1 stop
$926United Airlines
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Thu, Sep 25 - Thu, Oct 2
Delta Logo
7:15 am - 4:30 pmPDX-ICN
17h 15m1 stop
Delta Logo
7:20 pm - 5:10 pmICN-PDX
13h 50m1 stop
$951Delta
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Wed, Sep 24 - Mon, Oct 6
United Airlines Logo
12:53 pm - 4:20 amPDX-ICN
23h 27m2 stops
United Airlines Logo
4:50 pm - 8:50 pmICN-PDX
20h 00m1 stop
$956United Airlines
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Thu, Sep 25 - Thu, Oct 2
Cathay Pacific Logo
5:55 pm - 6:35 pmPDX-ICN
31h 40m2 stops
Cathay Pacific Logo
10:05 am - 8:50 pmICN-PDX
27h 45m2 stops
$960Cathay Pacific
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Sun, Nov 2 - Mon, Nov 17
Delta Logo
11:14 am - 4:30 pmPDX-ICN
13h 16m1 stop
Delta Logo
7:20 pm - 10:58 pmICN-PDX
19h 38m1 stop
$961Delta
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Mon, Aug 25 - Fri, Aug 29

Delta flights from Oregon to Seoul

Our best Delta deals on Oregon to Seoul flight tickets
Delta
Sep 24
PDX7:15 amPortland
17h 15m
1 stop
ICN4:30 pmIncheon Intl
Oct 6
ICN7:20 pmIncheon Intl
13h 50m
1 stop
PDX5:10 pmPortland
$951
Find similar
Delta
Aug 25
PDX11:14 amPortland
13h 16m
1 stop
ICN4:30 pmIncheon Intl
Aug 29
ICN7:20 pmIncheon Intl
19h 38m
1 stop
PDX10:58 pmPortland
$961
Find similar
Delta
Oct 4
EUG6:30 amEugene
18h 00m
1 stop
ICN4:30 pmIncheon Intl
Oct 18
ICN7:20 pmIncheon Intl
19h 54m
1 stop
EUG11:14 pmEugene
$974
Find similar

Alaska Airlines flights from Oregon to Seoul

Our best Alaska Airlines deals on Oregon to Seoul flight tickets
Alaska Airlines
Aug 16
PDX9:40 pmPortland
29h 20m
2 stops
ICN7:00 pmIncheon Intl
Sep 6
ICN9:25 pmIncheon Intl
31h 02m
1 stop
PDX12:27 pmPortland
$841
Find similar
Alaska Airlines
Aug 28
PDX5:40 pmPortland
33h 20m
1 stop
ICN7:00 pmIncheon Intl
Sep 10
ICN9:25 pmIncheon Intl
17h 15m
1 stop
PDX10:40 pmPortland
$847
Find similar
Alaska Airlines
Aug 16
PDX5:35 pmPortland
33h 25m
1 stop
ICN7:00 pmIncheon Intl
Sep 6
ICN9:25 pmIncheon Intl
17h 15m
1 stop
PDX10:40 pmPortland
$853
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Oregon to Seoul 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 12, 2025.
Use the filters below to find and compare flights from Oregon to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 9/1

10:05 am-4:05 pm

1 stop14h 00m

Incheon Intl

Tue 9/16

5:45 pm-11:01 pm

1 stop21h 16m

$799

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 9/1

10:05 am-9:10 pm

2 stops19h 05m

Incheon Intl

Sat 9/13

5:45 pm-2:46 pm

1 stop13h 01m

$810

PortlandIncheon

PDX - ICN

PDXICN

Portland

Tue 9/9

10:00 am-8:00 pm

2 stops18h 00m

Incheon Intl

Wed 9/17

5:45 pm-11:01 pm

1 stop21h 16m

$818

PortlandIncheon

PDX - ICN

PDXICN

Portland

Thu 8/28

5:40 pm-7:00 pm

1 stop33h 20m

Incheon Intl

Wed 9/10

9:25 pm-10:40 pm

1 stop17h 15m

$847

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 8/25

7:34 pm-7:00 pm

2 stops31h 26m

Incheon Intl

Fri 8/29

9:25 pm-10:40 pm

1 stop17h 15m

$866

PortlandIncheon

PDX - ICN

PDXICN

Portland

Thu 9/25

3:50 pm-4:20 am

1 stop20h 30m

Incheon Intl

Thu 10/2

11:30 am-2:42 pm

1 stop19h 12m

$926

PortlandIncheon

PDX - ICN

PDXICN

Portland

Wed 9/24

7:15 am-4:30 pm

1 stop17h 15m

Incheon Intl

Mon 10/6

7:20 pm-5:10 pm

1 stop13h 50m

$951

PortlandIncheon

PDX - ICN

PDXICN

Portland

Thu 9/25

12:53 pm-4:20 am

2 stops23h 27m

Incheon Intl

Thu 10/2

4:50 pm-8:50 pm

1 stop20h 00m

$956

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sun 11/2

5:55 pm-6:35 pm

2 stops31h 40m

Incheon Intl

Mon 11/17

10:05 am-8:50 pm

2 stops27h 45m

$960

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 8/25

11:14 am-4:30 pm

1 stop13h 16m

Incheon Intl

Fri 8/29

7:20 pm-10:58 pm

1 stop19h 38m

$961

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 Oregon to Seoul

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 Seoul?

The month of March is another great option to travel to Seoul, with average flight prices from Oregon averaging around $962.

What is the cheapest day to depart on your flight to Seoul?

According to our data, Thursday is the cheapest day to fly to Seoul from Oregon. The lowest ticket price found for a Thursday departure recently was $1,190. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Seoul is Friday, with ticket prices averaging around $1,498.

What is the cheapest time of day to depart on your flight to Seoul?

Flying to Seoul from Oregon in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $1,179 when looking at flights departing in the afternoon. In the evening is when there is more demand to fly to Seoul, so prices are often more expensive at around $1,565 per ticket.

How far in advance should I book a flight to Seoul?

You are more likely to see cheaper flights to Seoul from Oregon when booking weeks ahead of your departure date. In general, you can expect to find flights to Seoul for around $1,146 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seoul from Oregon for as low as $989 on momondo.

Cheap Oregon to Seoul flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Oregon to Seoul

Best Price Found

$409

Fastest flight time

13h 16m

Direct flights

None

Airports in Seoul

2 airports
The best one-way flight to Seoul from Oregon in the past 72 hours is $409. The best round-trip flight deal from Oregon to Seoul found on momondo in the last 72 hours is $799.
The fastest flight from Oregon to Seoul takes 13h 16m
There are no direct flights from Oregon to Seoul. Popular non-direct routes for this connection are Portland Airport - Incheon Intl Airport, Portland Airport - Seoul Gimpo Intl Airport and Eugene Airport - Incheon Intl Airport.
There are 2 airports near Seoul: Incheon Intl (ICN), Seoul Gimpo Intl (GMP)
Search flight deals

  • When did momondo last update prices for flights from Oregon to Seoul?

    Prices for flights from Oregon to Seoul refresh daily.

  • How many operators does momondo search for flights from Oregon to Seoul?

  • How old do you have to be to fly from Oregon to Seoul?

    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 Oregon to Seoul.

  • What documentation or ID do you need to fly to Seoul?

    The travel and health documents you'll need for your trip to Seoul 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 Seoul. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Oregon to Seoul

Compare and see reviews for airlines that fly from Oregon to Seoul with momondo
Airline
Rating
Free Cancellation
Price
Hawaiian AirlinesPriceFrom $767Free CancellationRating
7.8
2,651 reviews
Search Hawaiian Airlines flights
Air CanadaPriceFrom $809Free CancellationRating
7.1
9,943 reviews
Search Air Canada flights
DeltaPriceFrom $849Free CancellationRating
8.0
7,979 reviews
Search Delta flights
United AirlinesPriceFrom $877Free CancellationRating
7.4
8,920 reviews
Search United Airlines flights
Asiana AirlinesPriceFrom $912Free CancellationRating
8.2
473 reviews
Search Asiana Airlines flights
Korean AirPriceFrom $1,082Free CancellationRating
8.4
1,131 reviews
Search Korean Air flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Oregon to Seoul. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to Seoul from Oregon on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seoul from Oregon.

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

Of course. momondo tracks the price of Oregon 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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Find better results for your trip to South Korea

Fly into one of these airports located in Seoul

Airports listed have a maximum distance of 30.3 mi from Seoul
Seoul Gimpo Intl Airport
Incheon Intl Airport