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Cheap flights from Portland to South Korea from $355

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 South Korea departing on 10/6. 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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0 bags

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Find the cheapest flights from Portland to South Korea

Cheap round-trip flights

Logo
11:23 am - 3:45 pmPDX-ICN
36h 22m2 stops
Logo
8:35 pm - 6:20 amICN-PDX
25h 45m1 stop
$708
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Mon, Oct 6 - Fri, Oct 17
Logo
11:45 am - 4:50 amPDX-ICN
25h 05m2 stops
Logo
8:35 pm - 8:28 pmICN-PDX
15h 53m1 stop
$710
Find Deal
Mon, Oct 13 - Thu, Oct 23
Logo
2:18 pm - 3:45 pmPDX-ICN
33h 27m1 stop
Logo
8:35 pm - 8:28 pmICN-PDX
15h 53m1 stop
$715
Find Deal
Sun, Oct 12 - Thu, Oct 23
Logo
11:23 am - 3:45 pmPDX-ICN
36h 22m2 stops
Logo
6:20 pm - 4:54 pmICN-PDX
14h 34m1 stop
$732
Find Deal
Mon, Oct 6 - Wed, Oct 15
Delta Logo
9:17 am - 4:30 pmPDX-ICN
15h 13m1 stop
Delta Logo
7:20 pm - 11:57 pmICN-PDX
20h 37m1 stop
$754Delta
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Mon, Oct 6 - Thu, Oct 16
Alaska Airlines Logo
7:30 am - 6:35 pmPDX-ICN
18h 05m1 stop
Alaska Airlines Logo
8:35 pm - 6:49 pmICN-PDX
15h 14m1 stop
$756Alaska Airlines
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Sun, Nov 2 - Sun, Nov 9
United Airlines Logo
7:38 pm - 5:40 amPDX-ICN
17h 02m1 stop
United Airlines Logo
6:00 pm - 9:26 pmICN-PDX
20h 26m2 stops
$759United Airlines
Find Deal
Mon, Nov 10 - Thu, Nov 20
Delta Logo
5:50 pm - 4:30 pmPDX-ICN
30h 40m1 stop
Delta Logo
7:20 pm - 7:19 pmICN-PDX
15h 59m1 stop
$760Delta
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Sun, Oct 5 - Mon, Oct 13
Alaska Airlines Logo
9:34 am - 6:35 pmPDX-ICN
17h 01m1 stop
Alaska Airlines Logo
8:35 pm - 12:09 amICN-PDX
20h 34m1 stop
$792Alaska Airlines
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Fri, Oct 31 - Sat, Nov 15
Air Canada Logo
10:00 am - 4:05 pmPDX-ICN
14h 05m1 stop
Air Canada Logo
5:45 pm - 11:01 pmICN-PDX
21h 16m1 stop
$799Air Canada
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Tue, Sep 30 - Tue, Oct 14

Alaska Airlines flights from Portland to South Korea

Our best Alaska Airlines deals on Portland to South Korea flight tickets
Alaska Airlines
Nov 2
PDX7:30 amPortland
18h 05m
1 stop
ICN6:35 pmIncheon Intl
Nov 9
ICN8:35 pmIncheon Intl
15h 14m
1 stop
PDX6:49 pmPortland
$756
Find similar
Alaska Airlines
Oct 31
PDX9:34 amPortland
17h 01m
1 stop
ICN6:35 pmIncheon Intl
Nov 15
ICN8:35 pmIncheon Intl
20h 34m
1 stop
PDX12:09 amPortland
$792
Find similar
Alaska Airlines
Sep 24
PDX7:00 amPortland
19h 35m
2 stops
ICN6:35 pmIncheon Intl
Oct 6
ICN8:35 pmIncheon Intl
18h 58m
2 stops
PDX11:33 pmPortland
$1,117
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American Airlines flights from Portland to South Korea

Our best American Airlines deals on Portland to South Korea flight tickets
American Airlines
Sep 20
PDX2:56 pmPortland
32h 34m
2 stops
ICN3:30 pmIncheon Intl
Oct 6
ICN5:45 pmIncheon Intl
33h 11m
1 stop
PDX10:56 amPortland
$870
Find similar
American Airlines
Sep 15
PDX11:42 amPortland
35h 48m
1 stop
ICN3:30 pmIncheon Intl
Oct 15
ICN5:45 pmIncheon Intl
21h 44m
1 stop
PDX11:29 pmPortland
$871
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Portland to South Korea 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 September 11, 2025.
Use the filters below to find and compare flights from Portland to South Korea that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 10/6

11:23 am-3:45 pm

2 stops36h 22m

Incheon Intl

Fri 10/17

8:35 pm-6:20 am

1 stop25h 45m

$708

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 10/13

11:45 am-4:50 am

2 stops25h 05m

Incheon Intl

Thu 10/23

8:35 pm-8:28 pm

1 stop15h 53m

$710

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sun 10/12

2:18 pm-3:45 pm

1 stop33h 27m

Incheon Intl

Thu 10/23

8:35 pm-8:28 pm

1 stop15h 53m

$715

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 10/6

11:23 am-3:45 pm

2 stops36h 22m

Incheon Intl

Wed 10/15

6:20 pm-4:54 pm

1 stop14h 34m

$732

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 10/6

9:17 am-4:30 pm

1 stop15h 13m

Incheon Intl

Thu 10/16

7:20 pm-11:57 pm

1 stop20h 37m

$754

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sun 11/2

7:30 am-6:35 pm

1 stop18h 05m

Incheon Intl

Sun 11/9

8:35 pm-6:49 pm

1 stop15h 14m

$756

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 11/10

7:38 pm-5:40 am

1 stop17h 02m

Incheon Intl

Thu 11/20

6:00 pm-9:26 pm

2 stops20h 26m

$759

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sun 10/5

5:50 pm-4:30 pm

1 stop30h 40m

Incheon Intl

Mon 10/13

7:20 pm-7:19 pm

1 stop15h 59m

$760

PortlandIncheon

PDX - ICN

PDXICN

Portland

Fri 10/31

9:34 am-6:35 pm

1 stop17h 01m

Incheon Intl

Sat 11/15

8:35 pm-12:09 am

1 stop20h 34m

$792

PortlandIncheon

PDX - ICN

PDXICN

Portland

Tue 9/30

10:00 am-4:05 pm

1 stop14h 05m

Incheon Intl

Tue 10/14

5:45 pm-11:01 pm

1 stop21h 16m

$799

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 South Korea from

How to get the cheapest flight ticket from Portland to South Korea

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 South Korea?

If you aren’t able to travel to South Korea during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $980.

What is the cheapest day to depart on your flight to South Korea?

On average, the least expensive day to fly to South Korea from Portland is on a Thursday. momondo users have found tickets for Thursday departures for as low as $1,190. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Portland to South Korea for around $1,498.

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

Flying to South Korea from Portland 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. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $1,565 on average. Flights to South Korea 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 South Korea?

You are more likely to see cheaper flights to South Korea from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to South Korea for around $1,150 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to South Korea from Portland for as low as $989 on momondo.

Cheap Portland to South Korea flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to South Korea

Direct flights

None
There are no direct flights from Portland to South Korea. There are no popular flight routes from Portland to South Korea.
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  • When did momondo last update prices for flights from Portland Airport to South Korea?

    Prices for flights from Portland Airport to South Korea were last updated today.

  • How many operators does momondo search for flights from Portland Airport to South Korea?

  • How old do you have to be to fly from Portland Airport to South Korea?

    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 South Korea.

  • What documentation or ID do you need to fly to South Korea?

    The required travel and health documents for your South Korea trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at South Korea. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Portland to South Korea

Compare and see reviews for airlines that fly from Portland to South Korea with momondo
Airline
Rating
Free Cancellation
Price
Hawaiian AirlinesPriceFrom $767Free CancellationRating
7.8
2,723 reviews
Search Hawaiian Airlines flights
Air CanadaPriceFrom $809Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
China EasternPriceFrom $822Free CancellationRating
7.2
165 reviews
Search China Eastern flights
DeltaPriceFrom $849Free CancellationRating
7.9
7,960 reviews
Search Delta flights
United AirlinesPriceFrom $907Free CancellationRating
7.4
8,937 reviews
Search United Airlines flights
Asiana AirlinesPriceFrom $912Free CancellationRating
8.2
479 reviews
Search Asiana Airlines flights
Alaska AirlinesPriceFrom $951Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
Korean AirPriceFrom $1,084Free CancellationRating
8.4
1,139 reviews
Search Korean Air flights

Why use momondo?

Why should I use momondo to find a flight deal from Portland to South Korea?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to South Korea from Portland.

Can I find flights from Portland to South Korea with flexible booking policies on momondo?

momondo does allow users to show only those flights to South Korea from Portland which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Portland to South Korea?

Once you have performed a search for Portland to South Korea flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to South Korea from Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your South Korea trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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