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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 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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Find the cheapest flights from Portland to Seoul

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:10 am - 6:35 pm
PDX
-
ICN
16h 25m1 stop
Multiple Airlines Logo
8:35 pm - 5:59 pm
ICN
-
PDX
14h 24m1 stop
$706Multiple Airlines
Thu, Jan 22 - Thu, Feb 5
Multiple Airlines Logo
10:30 am - 6:35 pm
PDX
-
ICN
15h 05m1 stop
Multiple Airlines Logo
8:35 pm - 8:25 pm
ICN
-
PDX
15h 50m1 stop
$715Multiple Airlines
Sun, Feb 15 - Sun, Mar 22
Multiple Airlines Logo
7:10 am - 6:35 pm
PDX
-
ICN
18h 25m1 stop
Multiple Airlines Logo
8:35 pm - 8:47 pm
ICN
-
PDX
17h 12m1 stop
$716Multiple Airlines
Sun, Jan 18 - Fri, Jan 23
Multiple Airlines Logo
9:30 pm - 6:35 pm
PDX
-
ICN
28h 05m1 stop
Multiple Airlines Logo
8:35 pm - 5:59 pm
ICN
-
PDX
14h 24m1 stop
$721Multiple Airlines
Tue, Jan 20 - Thu, Feb 5
Multiple Airlines Logo
7:10 am - 6:35 pm
PDX
-
ICN
18h 25m1 stop
Multiple Airlines Logo
8:35 pm - 4:34 pm
ICN
-
PDX
12h 59m1 stop
$791Multiple Airlines
Fri, Jan 16 - Mon, Jan 26
Multiple Airlines Logo
5:35 pm - 6:35 pm
PDX
-
ICN
32h 00m1 stop
Multiple Airlines Logo
8:35 pm - 4:34 pm
ICN
-
PDX
12h 59m1 stop
$796Multiple Airlines
Fri, Jan 16 - Fri, Jan 23
Multiple Airlines Logo
7:05 pm - 4:05 pm
PDX
-
ICN
29h 00m1 stop
Multiple Airlines Logo
2:30 am - 9:15 am
ICN
-
PDX
22h 45m2 stops
$802Multiple Airlines
Wed, Apr 8 - Wed, Apr 29
Multiple Airlines Logo
7:16 pm - 4:20 pm
PDX
-
ICN
28h 04m1 stop
Multiple Airlines Logo
6:55 pm - 8:34 pm
ICN
-
PDX
17h 39m1 stop
$803Multiple Airlines
Mon, Mar 2 - Wed, Mar 11
Japan Airlines Logo
7:20 am - 10:05 pm
PDX
-
GMP
21h 45m2 stops
Japan Airlines Logo
12:05 pm - 12:38 pm
GMP
-
PDX
17h 33m2 stops
$872Japan Airlines
Thu, Jan 22 - Thu, Feb 5
Japan Airlines Logo
7:20 am - 10:05 pm
PDX
-
GMP
21h 45m2 stops
Japan Airlines Logo
12:05 pm - 4:50 pm
GMP
-
PDX
21h 45m2 stops
$884Japan Airlines
Tue, Jan 20 - Thu, Feb 5

Air Canada flights from Portland to Seoul

Our best Air Canada deals on Portland to Seoul flight tickets
Air Canada
Apr 30
PDX9:50 amPortland
14h 15m
1 stop
ICN4:05 pmIncheon Intl
May 28
ICN5:45 pmIncheon Intl
13h 00m
1 stop
PDX2:45 pmPortland
$846
Find similar
Air Canada
Feb 9
PDX9:50 amPortland
14h 20m
1 stop
ICN5:10 pmIncheon Intl
Feb 23
ICN6:55 pmIncheon Intl
12h 45m
1 stop
PDX2:40 pmPortland
$850
Find similar
Air Canada
May 3
PDX7:45 pmPortland
28h 20m
1 stop
ICN4:05 pmIncheon Intl
Jun 8
ICN5:45 pmIncheon Intl
13h 00m
1 stop
PDX2:45 pmPortland
$868
Find similar

American Airlines flights from Portland to Seoul

Our best American Airlines deals on Portland to Seoul flight tickets
American Airlines
Feb 1
PDX11:59 pmPortland
23h 46m
1 stop
ICN4:45 pmIncheon Intl
Feb 4
ICN7:15 pmIncheon Intl
20h 02m
1 stop
PDX10:17 pmPortland
$866
Find similar
American Airlines
Jan 18
PDX6:22 pmPortland
29h 23m
2 stops
ICN4:45 pmIncheon Intl
Jan 23
ICN7:15 pmIncheon Intl
19h 56m
1 stop
PDX10:11 pmPortland
$883
Find similar
American Airlines
Feb 5
PDX6:22 pmPortland
29h 23m
2 stops
ICN4:45 pmIncheon Intl
Feb 12
ICN7:15 pmIncheon Intl
22h 01m
2 stops
PDX12:16 amPortland
$889
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Portland 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 December 23, 2025.
Use the filters below to find and compare flights from Portland to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandIncheon

PDX - ICN

PDXICN

Portland

Thu 1/22

9:10 am-6:35 pm

1 stop16h 25m

Incheon Intl

Thu 2/5

8:35 pm-5:59 pm

1 stop14h 24m

$706

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sun 2/15

10:30 am-6:35 pm

1 stop15h 05m

Incheon Intl

Sun 3/22

8:35 pm-8:25 pm

1 stop15h 50m

$715

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sun 1/18

7:10 am-6:35 pm

1 stop18h 25m

Incheon Intl

Fri 1/23

8:35 pm-8:47 pm

1 stop17h 12m

$716

PortlandIncheon

PDX - ICN

PDXICN

Portland

Tue 1/20

9:30 pm-6:35 pm

1 stop28h 05m

Incheon Intl

Thu 2/5

8:35 pm-5:59 pm

1 stop14h 24m

$721

PortlandIncheon

PDX - ICN

PDXICN

Portland

Fri 1/16

7:10 am-6:35 pm

1 stop18h 25m

Incheon Intl

Mon 1/26

8:35 pm-4:34 pm

1 stop12h 59m

$791

PortlandIncheon

PDX - ICN

PDXICN

Portland

Fri 1/16

5:35 pm-6:35 pm

1 stop32h 00m

Incheon Intl

Fri 1/23

8:35 pm-4:34 pm

1 stop12h 59m

$796

PortlandIncheon

PDX - ICN

PDXICN

Portland

Wed 4/8

7:05 pm-4:05 pm

1 stop29h 00m

Incheon Intl

Wed 4/29

2:30 am-9:15 am

2 stops22h 45m

$802

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 3/2

7:16 pm-4:20 pm

1 stop28h 04m

Incheon Intl

Wed 3/11

6:55 pm-8:34 pm

1 stop17h 39m

$803

PortlandSeoul

PDX - GMP

PDXGMP

Portland

Thu 1/22

7:20 am-10:05 pm

2 stops21h 45m

Seoul Gimpo Intl

Thu 2/5

12:05 pm-12:38 pm

2 stops17h 33m

$872

PortlandSeoul

PDX - GMP

PDXGMP

Portland

Tue 1/20

7:20 am-10:05 pm

2 stops21h 45m

Seoul Gimpo Intl

Thu 2/5

12:05 pm-4:50 pm

2 stops21h 45m

$884

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 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 typical price of a round-trip flight between Portland and Seoul?

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 Portland averaging around $944.

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 Portland. 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 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. 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 Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Seoul 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 Seoul from Portland for as low as $982 on momondo.

How have Portland to Seoul flight prices changed over time?

As of December 2025, prices for Portland to Seoul flights are approximately 21% more expensive when compared to flights at the same time last year.

When to book flights from Portland to Seoul

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Seoul according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Seoul (PDX to SEL) flight deals and tips

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

Fastest flight time

14h 15m

Direct flights

None
The fastest flight from Portland to Seoul takes 14h 15m
There are no direct flights from Portland to Seoul. There are no popular flight routes from Portland to Seoul.
Search flight deals

  • How far is Portland to Seoul by plane?

    There are 5247.7 mi between Portland and Seoul. Flights usually cover this in 14h 15m, depending on flying conditions and air traffic around both airports.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Seoul.

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

    The travel and health documents required for your trip to Seoul can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seoul. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Portland to Seoul?

Best airlines flying from Portland to Seoul

Compare and see reviews for airlines that fly from Portland to Seoul with momondo
Airline
Rating
Free Cancellation
Price
Hawaiian AirlinesPriceFrom $767Free CancellationRating
7.8
2,820 reviews
Search Hawaiian Airlines flights
Air CanadaPriceFrom $805Free CancellationRating
7.1
10,551 reviews
Search Air Canada flights
Alaska AirlinesPriceFrom $815Free CancellationRating
8.0
11,517 reviews
Search Alaska Airlines flights
DeltaPriceFrom $849Free CancellationRating
7.9
8,015 reviews
Search Delta flights
United AirlinesPriceFrom $907Free CancellationRating
7.4
9,109 reviews
Search United Airlines flights
Asiana AirlinesPriceFrom $912Free CancellationRating
8.2
499 reviews
Search Asiana Airlines flights
Korean AirPriceFrom $1,082Free CancellationRating
8.4
1,185 reviews
Search Korean Air flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to Seoul. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Seoul 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 Seoul?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to Seoul.

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

Yes momondo offers price alerts on flights to Seoul from Portland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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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