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Cheap flights from Portland to Seoul from $475

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 9/15. 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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0 bags

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Cheap round-trip flights

Logo
7:21 am - 9:50 pmPDX-GMP
22h 29m2 stops
Logo
7:55 am - 1:24 pmGMP-PDX
21h 29m2 stops
$880
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Mon, Sep 1 - Tue, Sep 16
Japan Airlines Logo
7:00 am - 10:20 pmPDX-GMP
22h 20m2 stops
Japan Airlines Logo
12:05 pm - 4:28 pmGMP-PDX
21h 23m2 stops
$1,031Japan Airlines
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Tue, Jan 20 - Thu, Feb 5
Japan Airlines Logo
7:00 am - 10:20 pmPDX-GMP
22h 20m2 stops
Japan Airlines Logo
7:50 am - 5:12 pmGMP-PDX
26h 22m2 stops
$1,084Japan Airlines
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Wed, Nov 12 - Thu, Nov 20
Japan Airlines Logo
7:00 am - 10:20 pmPDX-GMP
22h 20m2 stops
Japan Airlines Logo
7:50 am - 4:28 pmGMP-PDX
25h 38m2 stops
$1,087Japan Airlines
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Mon, Feb 2 - Fri, Feb 6
Japan Airlines Logo
6:00 am - 10:20 pmPDX-GMP
23h 20m2 stops
Japan Airlines Logo
7:50 am - 4:50 pmGMP-PDX
26h 00m2 stops
$1,106Japan Airlines
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Fri, Dec 5 - Mon, Dec 8
Japan Airlines Logo
7:00 am - 10:20 pmPDX-GMP
22h 20m2 stops
Japan Airlines Logo
12:05 pm - 12:38 pmGMP-PDX
17h 33m2 stops
$1,148Japan Airlines
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Sun, Nov 2 - Wed, Nov 19
Logo
8:31 am - 9:50 pmPDX-GMP
21h 19m2 stops
Logo
12:05 pm - 2:48 pmGMP-PDX
18h 43m2 stops
$1,151
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Thu, Sep 25 - Wed, Oct 8
EVA Air Logo
6:40 pm - 6:10 pmPDX-GMP
55h 30m2 stops
EVA Air Logo
1:50 pm - 11:35 amGMP-PDX
37h 45m2 stops
$1,243EVA Air
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Sat, Oct 11 - Sat, Oct 25
ANA Logo
7:30 am - 10:20 pmPDX-GMP
22h 50m2 stops
ANA Logo
7:45 am - 6:30 pmGMP-PDX
26h 45m2 stops
$5,545ANA
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Tue, Oct 14 - Mon, Oct 27
ANA Logo
9:55 am - 11:05 amPDX-GMP
33h 10m2 stops
ANA Logo
12:25 pm - 6:30 pmGMP-PDX
23h 05m2 stops
$5,658ANA
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Mon, Oct 20 - Fri, Nov 14

Japan Airlines flights from Portland to Seoul Gimpo Intl Airport

Our best Japan Airlines deals on Portland to Seoul Gimpo Intl Airport flight tickets
Japan Airlines
Jan 20
PDX7:00 amPortland
22h 20m
2 stops
GMP10:20 pmSeoul Gimpo Intl
Feb 5
GMP12:05 pmSeoul Gimpo Intl
21h 23m
2 stops
PDX4:28 pmPortland
$1,031
Find similar
Japan Airlines
Nov 12
PDX7:00 amPortland
22h 20m
2 stops
GMP10:20 pmSeoul Gimpo Intl
Nov 20
GMP7:50 amSeoul Gimpo Intl
26h 22m
2 stops
PDX5:12 pmPortland
$1,084
Find similar
Japan Airlines
Feb 2
PDX7:00 amPortland
22h 20m
2 stops
GMP10:20 pmSeoul Gimpo Intl
Feb 6
GMP7:50 amSeoul Gimpo Intl
25h 38m
2 stops
PDX4:28 pmPortland
$1,087
Find similar

ANA flights from Portland to Seoul Gimpo Intl Airport

Our best ANA deals on Portland to Seoul Gimpo Intl Airport flight tickets
ANA
Oct 14
PDX7:30 amPortland
22h 50m
2 stops
GMP10:20 pmSeoul Gimpo Intl
Oct 27
GMP7:45 amSeoul Gimpo Intl
26h 45m
2 stops
PDX6:30 pmPortland
$5,545
Find similar
ANA
Oct 20
PDX9:55 amPortland
33h 10m
2 stops
GMP11:05 amSeoul Gimpo Intl
Nov 14
GMP12:25 pmSeoul Gimpo Intl
23h 05m
2 stops
PDX6:30 pmPortland
$5,658
Find similar
ANA
Oct 20
PDX9:55 amPortland
33h 10m
2 stops
GMP11:05 amSeoul Gimpo Intl
Nov 14
GMP12:25 pmSeoul Gimpo Intl
23h 05m
2 stops
PDX6:30 pmPortland
$5,673
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momondo Fare Finder

 
Customize your flight search to find flights from Portland to Seoul Gimpo 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 21, 2025.
Use the filters below to find and compare flights from Portland to Seoul Gimpo Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandSeoul

PDX - GMP

PDXGMP

Portland

Mon 9/1

7:21 am-9:50 pm

2 stops22h 29m

Seoul Gimpo Intl

Tue 9/16

7:55 am-1:24 pm

2 stops21h 29m

$880

PortlandSeoul

PDX - GMP

PDXGMP

Portland

Tue 1/20

7:00 am-10:20 pm

2 stops22h 20m

Seoul Gimpo Intl

Thu 2/5

12:05 pm-4:28 pm

2 stops21h 23m

$1,031

PortlandSeoul

PDX - GMP

PDXGMP

Portland

Wed 11/12

7:00 am-10:20 pm

2 stops22h 20m

Seoul Gimpo Intl

Thu 11/20

7:50 am-5:12 pm

2 stops26h 22m

$1,084

PortlandSeoul

PDX - GMP

PDXGMP

Portland

Mon 2/2

7:00 am-10:20 pm

2 stops22h 20m

Seoul Gimpo Intl

Fri 2/6

7:50 am-4:28 pm

2 stops25h 38m

$1,087

PortlandSeoul

PDX - GMP

PDXGMP

Portland

Fri 12/5

6:00 am-10:20 pm

2 stops23h 20m

Seoul Gimpo Intl

Mon 12/8

7:50 am-4:50 pm

2 stops26h 00m

$1,106

PortlandSeoul

PDX - GMP

PDXGMP

Portland

Sun 11/2

7:00 am-10:20 pm

2 stops22h 20m

Seoul Gimpo Intl

Wed 11/19

12:05 pm-12:38 pm

2 stops17h 33m

$1,148

PortlandSeoul

PDX - GMP

PDXGMP

Portland

Thu 9/25

8:31 am-9:50 pm

2 stops21h 19m

Seoul Gimpo Intl

Wed 10/8

12:05 pm-2:48 pm

2 stops18h 43m

$1,151

PortlandSeoul

PDX - GMP

PDXGMP

Portland

Sat 10/11

6:40 pm-6:10 pm

2 stops55h 30m

Seoul Gimpo Intl

Sat 10/25

1:50 pm-11:35 am

2 stops37h 45m

$1,243

PortlandSeoul

PDX - GMP

PDXGMP

Portland

Tue 10/14

7:30 am-10:20 pm

2 stops22h 50m

Seoul Gimpo Intl

Mon 10/27

7:45 am-6:30 pm

2 stops26h 45m

$5,545

PortlandSeoul

PDX - GMP

PDXGMP

Portland

Mon 10/20

9:55 am-11:05 am

2 stops33h 10m

Seoul Gimpo Intl

Fri 11/14

12:25 pm-6:30 pm

2 stops23h 05m

$5,658

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 Gimpo 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 cheapest airline that flies from Portland to Seoul Gimpo Intl?

Japan Airlines, EVA Air, and Air China are the most popular carriers operating from Portland to Seoul Gimpo Intl

When to book flights from Portland to Seoul Gimpo Intl Airport

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

Cheap Portland to Seoul Gimpo Intl Airport (PDX to GMP) flight deals and tips

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

Direct flights

None
There are no direct flights from Portland to Seoul Gimpo Intl Airport. There are no popular flight routes from Portland to Seoul Gimpo Intl Airport.
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  • How far is Portland to Seoul Gimpo Intl by plane?

    The distance between Portland and Seoul Gimpo Intl is about 5253.9 mi. A reasonable flight in good conditions will take 18h 20m.

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

    Prices for flights from Portland Airport to Seoul Gimpo Intl Airport refresh daily.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Seoul Gimpo Intl Airport.

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

    The required travel and health documents for your Seoul Gimpo Intl Airport 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 Seoul Gimpo Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

It is quick and easy to find Portland to Seoul flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seoul that suits you.

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

All flight searches from Portland to Seoul on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Seoul from Portland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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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