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Cheap flights from Portland 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 Portland to Seoul departing on 9/25. 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

Multiple Airlines Logo
1:21 pm - 4:20 pmPDX-ICN
34h 59m1 stop
Multiple Airlines Logo
8:35 pm - 1:50 pmICN-PDX
34h 15m1 stop
$770Multiple Airlines
Find Deal
sáb., nov. 1 - sáb., nov. 8
Multiple Airlines Logo
3:26 pm - 4:20 pmPDX-ICN
31h 54m2 stops
Multiple Airlines Logo
8:35 pm - 4:50 pmICN-PDX
13h 15m1 stop
$783Multiple Airlines
Find Deal
dom., nov. 9 - vie., dic. 12
Multiple Airlines Logo
3:29 pm - 7:25 pmPDX-ICN
34h 56m2 stops
Multiple Airlines Logo
8:35 pm - 4:50 pmICN-PDX
13h 15m1 stop
$784Multiple Airlines
Find Deal
lun., nov. 10 - vie., dic. 12
Multiple Airlines Logo
1:21 pm - 4:20 pmPDX-ICN
33h 59m1 stop
Multiple Airlines Logo
8:35 pm - 4:50 pmICN-PDX
13h 15m1 stop
$785Multiple Airlines
Find Deal
sáb., nov. 8 - vie., dic. 12
Multiple Airlines Logo
3:29 pm - 7:25 pmPDX-ICN
34h 56m2 stops
Multiple Airlines Logo
8:35 pm - 9:20 pmICN-PDX
17h 45m1 stop
$786Multiple Airlines
Find Deal
lun., nov. 10 - jue., dic. 11
Alaska Airlines Logo
7:30 am - 6:35 pmPDX-ICN
18h 05m1 stop
Alaska Airlines Logo
9:25 pm - 5:34 amICN-PDX
25h 09m1 stop
$848Alaska Airlines
Find Deal
vie., nov. 7 - vie., nov. 14
China Eastern Logo
5:29 am - 10:00 amPDX-GMP
35h 31m2 stops
China Eastern Logo
8:50 pm - 4:22 pmGMP-PDX
36h 32m2 stops
$1,036China Eastern
Find Deal
dom., nov. 2 - dom., nov. 9
Japan Airlines Logo
7:00 am - 10:05 pmPDX-GMP
22h 05m2 stops
Japan Airlines Logo
12:05 pm - 4:28 pmGMP-PDX
21h 23m2 stops
$1,065Japan Airlines
Find Deal
mar., ene. 20 - jue., feb. 5
Japan Airlines Logo
7:01 am - 10:05 pmPDX-GMP
22h 04m2 stops
Japan Airlines Logo
7:40 pm - 12:46 pmGMP-PDX
34h 06m2 stops
$1,099Japan Airlines
Find Deal
mar., nov. 25 - mié., dic. 3
EVA Air Logo
7:00 am - 12:50 pmPDX-GMP
37h 50m2 stops
EVA Air Logo
8:20 pm - 1:29 pmGMP-PDX
33h 09m2 stops
$1,143EVA Air
Find Deal
mié., oct. 15 - mié., oct. 22

Alaska Airlines flights from Portland to Seoul

Our best Alaska Airlines deals on Portland to Seoul flight tickets
Alaska Airlines
Nov 7
PDX7:30 amPortland
18h 05m
1 stop
ICN6:35 pmIncheon Intl
Nov 14
ICN9:25 pmIncheon Intl
25h 09m
1 stop
PDX5:34 amPortland
$848
Find similar
Alaska Airlines
Oct 1
PDX9:40 amPortland
16h 55m
1 stop
ICN6:35 pmIncheon Intl
Oct 17
ICN8:35 pmIncheon Intl
19h 43m
1 stop
PDX12:18 amPortland
$892
Find similar
Alaska Airlines
Oct 1
PDX6:05 amPortland
20h 30m
1 stop
ICN6:35 pmIncheon Intl
Oct 16
ICN8:35 pmIncheon Intl
16h 15m
2 stops
PDX8:50 pmPortland
$1,137
Find similar

United Airlines flights from Portland to Seoul

Our best United Airlines deals on Portland to Seoul flight tickets
United Airlines
Sep 23
PDX5:30 amPortland
17h 30m
1 stop
ICN3:00 pmIncheon Intl
Sep 30
ICN4:50 pmIncheon Intl
32h 39m
2 stops
PDX9:29 amPortland
$897
Find similar
United Airlines
Sep 30
PDX7:30 amPortland
15h 30m
1 stop
ICN3:00 pmIncheon Intl
Oct 2
ICN11:30 amIncheon Intl
25h 36m
2 stops
PDX9:06 pmPortland
$1,054
Find similar
United Airlines
Sep 24
PDX10:55 amPortland
25h 25m
2 stops
ICN4:20 amIncheon Intl
Oct 25
ICN4:50 pmIncheon Intl
32h 48m
2 stops
PDX9:38 amPortland
$1,112
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 septiembre 17, 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

sáb. 11/1

1:21 pm-4:20 pm

1 stop34h 59m

Incheon Intl

sáb. 11/8

8:35 pm-1:50 pm

1 stop34h 15m

$770

PortlandIncheon

PDX - ICN

PDXICN

Portland

dom. 11/9

3:26 pm-4:20 pm

2 stops31h 54m

Incheon Intl

vie. 12/12

8:35 pm-4:50 pm

1 stop13h 15m

$783

PortlandIncheon

PDX - ICN

PDXICN

Portland

lun. 11/10

3:29 pm-7:25 pm

2 stops34h 56m

Incheon Intl

vie. 12/12

8:35 pm-4:50 pm

1 stop13h 15m

$784

PortlandIncheon

PDX - ICN

PDXICN

Portland

sáb. 11/8

1:21 pm-4:20 pm

1 stop33h 59m

Incheon Intl

vie. 12/12

8:35 pm-4:50 pm

1 stop13h 15m

$785

PortlandIncheon

PDX - ICN

PDXICN

Portland

lun. 11/10

3:29 pm-7:25 pm

2 stops34h 56m

Incheon Intl

jue. 12/11

8:35 pm-9:20 pm

1 stop17h 45m

$786

PortlandIncheon

PDX - ICN

PDXICN

Portland

vie. 11/7

7:30 am-6:35 pm

1 stop18h 05m

Incheon Intl

vie. 11/14

9:25 pm-5:34 am

1 stop25h 09m

$848

PortlandSeoul

PDX - GMP

PDXGMP

Portland

dom. 11/2

5:29 am-10:00 am

2 stops35h 31m

Seoul Gimpo Intl

dom. 11/9

8:50 pm-4:22 pm

2 stops36h 32m

$1,036

PortlandSeoul

PDX - GMP

PDXGMP

Portland

mar. 1/20

7:00 am-10:05 pm

2 stops22h 05m

Seoul Gimpo Intl

jue. 2/5

12:05 pm-4:28 pm

2 stops21h 23m

$1,065

PortlandSeoul

PDX - GMP

PDXGMP

Portland

mar. 11/25

7:01 am-10:05 pm

2 stops22h 04m

Seoul Gimpo Intl

mié. 12/3

7:40 pm-12:46 pm

2 stops34h 06m

$1,099

PortlandSeoul

PDX - GMP

PDXGMP

Portland

mié. 10/15

7:00 am-12:50 pm

2 stops37h 50m

Seoul Gimpo Intl

mié. 10/22

8:20 pm-1:29 pm

2 stops33h 09m

$1,143

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 $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 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 $1,153 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 $989 on momondo.

How have Portland to Seoul flight prices changed over time?

As of September 2025, prices for Portland to Seoul flights are approximately 9% cheaper 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

Direct flights

None
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 17h 30m, 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
2,729 reviews
Search Hawaiian Airlines flights
Air CanadaPriceFrom $809Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
DeltaPriceFrom $849Free CancellationRating
7.9
7,961 reviews
Search Delta flights
United AirlinesPriceFrom $907Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
Asiana AirlinesPriceFrom $912Free CancellationRating
8.2
481 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
1,140 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