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Cheap flights from Portland to Seoul from $375

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 8/12. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland to Seoul

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:37 am - 9:40 pm
PDX
-
ICN
19h 03m
1 stop
Multiple Airlines Logo
7:15 pm - 8:50 pm
ICN
-
PDX
17h 35m
1 stop
$901Multiple Airlines
Wed, Sep 2 - Wed, Sep 30
Multiple Airlines Logo
10:37 am - 9:40 pm
PDX
-
ICN
19h 03m
1 stop
Multiple Airlines Logo
7:15 pm - 8:50 pm
ICN
-
PDX
17h 35m
1 stop
$919Multiple Airlines
Wed, Sep 2 - Wed, Sep 16
Multiple Airlines Logo
10:37 am - 8:10 pm
PDX
-
ICN
17h 33m
1 stop
Multiple Airlines Logo
7:15 pm - 8:50 pm
ICN
-
PDX
17h 35m
1 stop
$927Multiple Airlines
Sat, Sep 19 - Wed, Sep 23
Multiple Airlines Logo
10:37 am - 9:40 pm
PDX
-
ICN
19h 03m
1 stop
Multiple Airlines Logo
7:15 pm - 8:50 pm
ICN
-
PDX
17h 35m
1 stop
$930Multiple Airlines
Wed, Sep 9 - Wed, Sep 16
Multiple Airlines Logo
10:37 am - 9:40 pm
PDX
-
ICN
19h 03m
1 stop
Multiple Airlines Logo
7:15 pm - 8:50 pm
ICN
-
PDX
17h 35m
1 stop
$931Multiple Airlines
Wed, Sep 16 - Wed, Sep 23
Multiple Airlines Logo
10:37 am - 9:40 pm
PDX
-
ICN
19h 03m
1 stop
Multiple Airlines Logo
7:15 pm - 8:51 pm
ICN
-
PDX
17h 36m
1 stop
$934Multiple Airlines
Wed, Aug 19 - Wed, Sep 2
Multiple Airlines Logo
10:37 am - 8:10 pm
PDX
-
ICN
17h 33m
1 stop
Multiple Airlines Logo
8:00 am - 2:27 pm
ICN
-
PDX
46h 27m
2 stops
$947Multiple Airlines
Sat, Aug 29 - Wed, Sep 9
Multiple Airlines Logo
10:37 am - 9:40 pm
PDX
-
ICN
19h 03m
1 stop
Multiple Airlines Logo
7:15 pm - 10:51 pm
ICN
-
PDX
19h 36m
1 stop
$950Multiple Airlines
Wed, Aug 19 - Mon, Aug 31
Japan Airlines Logo
7:03 am - 10:40 am
PDX
-
GMP
35h 37m
2 stops
Japan Airlines Logo
8:00 am - 1:37 pm
GMP
-
PDX
21h 37m
2 stops
$1,393Japan Airlines
Tue, Sep 15 - Thu, Sep 24
Japan Airlines Logo
7:19 am - 9:15 pm
PDX
-
GMP
21h 56m
2 stops
Japan Airlines Logo
12:05 pm - 4:50 pm
GMP
-
PDX
20h 45m
2 stops
$1,396Japan Airlines
Mon, Aug 17 - Tue, Sep 1

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Alaska Airlines flights from Portland to Seoul

Our best Alaska Airlines deals on Portland to Seoul flight tickets
Alaska Airlines
Jul 16
PDX8:19 amPortland
17h 11m
1 stop
ICN5:30 pmIncheon Intl
Jul 20
ICN7:35 pmIncheon Intl
36h 40m
2 stops
PDX4:15 pmPortland
$1,107
Alaska Airlines
Jul 15
PDX6:19 amPortland
19h 11m
1 stop
ICN5:30 pmIncheon Intl
Jul 22
ICN7:35 pmIncheon Intl
19h 55m
1 stop
PDX11:30 pmPortland
$1,111
Alaska Airlines
Jul 16
PDX6:19 amPortland
19h 11m
1 stop
ICN5:30 pmIncheon Intl
Jul 19
ICN7:35 pmIncheon Intl
20h 47m
1 stop
PDX12:22 amPortland
$1,112

Delta flights from Portland to Seoul

Our best Delta deals on Portland to Seoul flight tickets
Delta
Jul 11
PDX5:30 amPortland
19h 20m
1 stop
ICN4:50 pmIncheon Intl
Jul 17
ICN7:00 pmIncheon Intl
17h 02m
1 stop
PDX8:02 pmPortland
$1,120
Delta
Jul 8
PDX8:44 pmPortland
28h 06m
1 stop
ICN4:50 pmIncheon Intl
Jul 13
ICN7:00 pmIncheon Intl
19h 00m
1 stop
PDX10:00 pmPortland
$1,125
Delta
Jul 8
PDX8:44 pmPortland
28h 06m
1 stop
ICN4:50 pmIncheon Intl
Jul 12
ICN7:00 pmIncheon Intl
19h 00m
1 stop
PDX10:00 pmPortland
$1,225

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 July 2, 2026.
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

Cheapest round-trip

PortlandIncheon

PDX - ICN

PDXICN

Portland

Wed 9/2

10:37 am-9:40 pm

1 stop19h 03m

Incheon Intl

Wed 9/30

7:15 pm-8:50 pm

1 stop17h 35m

$901

PortlandIncheon

PDX - ICN

PDXICN

Portland

Wed 9/2

10:37 am-9:40 pm

1 stop19h 03m

Incheon Intl

Wed 9/16

7:15 pm-8:50 pm

1 stop17h 35m

$919
Quickest round-trip

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sat 9/19

10:37 am-8:10 pm

1 stop17h 33m

Incheon Intl

Wed 9/23

7:15 pm-8:50 pm

1 stop17h 35m

$927

PortlandIncheon

PDX - ICN

PDXICN

Portland

Wed 9/9

10:37 am-9:40 pm

1 stop19h 03m

Incheon Intl

Wed 9/16

7:15 pm-8:50 pm

1 stop17h 35m

$930

PortlandIncheon

PDX - ICN

PDXICN

Portland

Wed 9/16

10:37 am-9:40 pm

1 stop19h 03m

Incheon Intl

Wed 9/23

7:15 pm-8:50 pm

1 stop17h 35m

$931

PortlandIncheon

PDX - ICN

PDXICN

Portland

Wed 8/19

10:37 am-9:40 pm

1 stop19h 03m

Incheon Intl

Wed 9/2

7:15 pm-8:51 pm

1 stop17h 36m

$934

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sat 8/29

10:37 am-8:10 pm

1 stop17h 33m

Incheon Intl

Wed 9/9

8:00 am-2:27 pm

2 stops46h 27m

$947

PortlandIncheon

PDX - ICN

PDXICN

Portland

Wed 8/19

10:37 am-9:40 pm

1 stop19h 03m

Incheon Intl

Mon 8/31

7:15 pm-10:51 pm

1 stop19h 36m

$950

PortlandSeoul

PDX - GMP

PDXGMP

Portland

Tue 9/15

7:03 am-10:40 am

2 stops35h 37m

Seoul Gimpo Intl

Thu 9/24

8:00 am-1:37 pm

2 stops21h 37m

$1,393

PortlandSeoul

PDX - GMP

PDXGMP

Portland

Mon 8/17

7:19 am-9:15 pm

2 stops21h 56m

Seoul Gimpo Intl

Tue 9/1

12:05 pm-4:50 pm

2 stops20h 45m

$1,396

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 July is another great option to travel to Seoul, with average flight prices from Portland averaging around $169.

How far in advance should I book a flight from Portland 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 $1,244 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 $843 on momondo.

How have Portland to Seoul flight prices changed over time?

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

13h 35m

Direct flights

None
The fastest flight from Portland to Seoul takes 13h 35m
There are no direct flights from Portland to Seoul. There are no popular flight routes from Portland to Seoul.
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Frequently asked questions about flying from Portland to Seoul

  • How far is Portland to Seoul by plane?

    There are 5247.7 mi between Portland and Seoul. Flights usually cover this in 13h 35m, 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
Air CanadaPriceFrom $791Free CancellationRating
7.1
11,291 reviews
Search Air Canada flights
Alaska AirlinesPriceFrom $815Free CancellationRating
7.9
12,607 reviews
Search Alaska Airlines flights
Asiana AirlinesPriceFrom $881Free CancellationRating
8.1
550 reviews
Search Asiana Airlines flights
United AirlinesPriceFrom $910Free CancellationRating
7.4
9,927 reviews
Search United Airlines flights
DeltaPriceFrom $916Free CancellationRating
7.8
8,454 reviews
Search Delta flights
Korean AirPriceFrom $1,155Free CancellationRating
8.4
1,220 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