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Cheap flights from Portland to Seoul from $404

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 11/8. 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 Seoul

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:50 am - 5:10 pmPDX-ICN
14h 20m1 stop
Multiple Airlines Logo
2:35 pm - 6:30 pmICN-PDX
20h 55m2 stops
$772Multiple Airlines
Find Deal
Tue, Nov 18 - Tue, Nov 25
Multiple Airlines Logo
8:59 am - 9:35 pmPDX-ICN
43h 36m2 stops
Multiple Airlines Logo
6:55 pm - 8:50 pmICN-PDX
18h 55m1 stop
$787Multiple Airlines
Find Deal
Fri, Nov 28 - Mon, Dec 8
Air Canada Logo
9:50 am - 5:10 pmPDX-ICN
14h 20m1 stop
Air Canada Logo
6:55 pm - 2:40 pmICN-PDX
12h 45m1 stop
$813Air Canada
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Tue, Nov 18 - Mon, Dec 1
Alaska Airlines Logo
9:40 am - 6:35 pmPDX-ICN
16h 55m1 stop
Alaska Airlines Logo
8:35 pm - 12:03 amICN-PDX
19h 28m1 stop
$816Alaska Airlines
Find Deal
Mon, Mar 30 - Wed, Apr 15
Alaska Airlines Logo
2:38 pm - 6:35 pmPDX-ICN
34h 57m1 stop
Alaska Airlines Logo
8:35 pm - 6:56 pmICN-PDX
15h 21m1 stop
$821Alaska Airlines
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Tue, Jan 20 - Thu, Feb 5
Air Canada Logo
7:00 pm - 5:10 pmPDX-ICN
29h 10m1 stop
Air Canada Logo
6:55 pm - 6:30 pmICN-PDX
16h 35m1 stop
$850Air Canada
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Tue, Jan 20 - Thu, Feb 5
United Airlines Logo
1:00 pm - 5:40 amPDX-ICN
23h 40m1 stop
United Airlines Logo
12:45 pm - 6:36 pmICN-PDX
22h 51m1 stop
$853United Airlines
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Wed, Nov 12 - Fri, Nov 21
United Airlines Logo
4:02 pm - 5:40 amPDX-ICN
20h 38m2 stops
United Airlines Logo
6:00 pm - 2:46 pmICN-PDX
13h 46m1 stop
$857United Airlines
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Sun, Nov 16 - Fri, Nov 21
Asiana Airlines Logo
7:30 pm - 5:05 amPDX-ICN
17h 35m1 stop
Asiana Airlines Logo
8:40 pm - 8:05 pmICN-PDX
15h 25m1 stop
$923Asiana Airlines
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Tue, Mar 24 - Tue, Mar 31
Delta Logo
9:40 am - 4:30 pmPDX-ICN
14h 50m1 stop
Delta Logo
7:20 pm - 4:33 pmICN-PDX
13h 13m1 stop
$961Delta
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Tue, Mar 31 - Sat, Apr 18

American Airlines flights from Portland to Seoul

Our best American Airlines deals on Portland to Seoul flight tickets
American Airlines
Dec 1
PDX12:59 amPortland
22h 46m
1 stop
ICN4:45 pmIncheon Intl
Dec 12
ICN7:15 pmIncheon Intl
21h 08m
1 stop
PDX11:23 pmPortland
$866
Find similar
American Airlines
Nov 25
PDX12:59 amPortland
22h 46m
1 stop
ICN4:45 pmIncheon Intl
Dec 3
ICN7:15 pmIncheon Intl
19h 09m
1 stop
PDX9:24 pmPortland
$912
Find similar
American Airlines
Nov 30
PDX12:59 amPortland
22h 46m
1 stop
ICN4:45 pmIncheon Intl
Dec 10
ICN7:15 pmIncheon Intl
21h 08m
1 stop
PDX11:23 pmPortland
$937
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Delta flights from Portland to Seoul

Our best Delta deals on Portland to Seoul flight tickets
Delta
Oct 31
PDX7:30 amPortland
17h 00m
1 stop
ICN4:30 pmIncheon Intl
Nov 15
ICN8:05 pmIncheon Intl
19h 35m
1 stop
PDX10:40 pmPortland
$912
Find similar
Delta
Mar 31
PDX9:40 amPortland
14h 50m
1 stop
ICN4:30 pmIncheon Intl
Apr 18
ICN7:20 pmIncheon Intl
13h 13m
1 stop
PDX4:33 pmPortland
$961
Find similar
Delta
Oct 30
PDX12:40 amPortland
22h 50m
1 stop
ICN3:30 pmIncheon Intl
Nov 15
ICN8:05 pmIncheon Intl
16h 14m
1 stop
PDX7:19 pmPortland
$1,159
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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 October 29, 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

Tue 11/18

9:50 am-5:10 pm

1 stop14h 20m

Incheon Intl

Tue 11/25

2:35 pm-6:30 pm

2 stops20h 55m

$772

PortlandIncheon

PDX - ICN

PDXICN

Portland

Fri 11/28

8:59 am-9:35 pm

2 stops43h 36m

Incheon Intl

Mon 12/8

6:55 pm-8:50 pm

1 stop18h 55m

$787

PortlandIncheon

PDX - ICN

PDXICN

Portland

Tue 11/18

9:50 am-5:10 pm

1 stop14h 20m

Incheon Intl

Mon 12/1

6:55 pm-2:40 pm

1 stop12h 45m

$813

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 3/30

9:40 am-6:35 pm

1 stop16h 55m

Incheon Intl

Wed 4/15

8:35 pm-12:03 am

1 stop19h 28m

$816

PortlandIncheon

PDX - ICN

PDXICN

Portland

Tue 1/20

2:38 pm-6:35 pm

1 stop34h 57m

Incheon Intl

Thu 2/5

8:35 pm-6:56 pm

1 stop15h 21m

$821

PortlandIncheon

PDX - ICN

PDXICN

Portland

Tue 1/20

7:00 pm-5:10 pm

1 stop29h 10m

Incheon Intl

Thu 2/5

6:55 pm-6:30 pm

1 stop16h 35m

$850

PortlandIncheon

PDX - ICN

PDXICN

Portland

Wed 11/12

1:00 pm-5:40 am

1 stop23h 40m

Incheon Intl

Fri 11/21

12:45 pm-6:36 pm

1 stop22h 51m

$853

PortlandIncheon

PDX - ICN

PDXICN

Portland

Sun 11/16

4:02 pm-5:40 am

2 stops20h 38m

Incheon Intl

Fri 11/21

6:00 pm-2:46 pm

1 stop13h 46m

$857

PortlandIncheon

PDX - ICN

PDXICN

Portland

Tue 3/24

7:30 pm-5:05 am

1 stop17h 35m

Incheon Intl

Tue 3/31

8:40 pm-8:05 pm

1 stop15h 25m

$923

PortlandIncheon

PDX - ICN

PDXICN

Portland

Tue 3/31

9:40 am-4:30 pm

1 stop14h 50m

Incheon Intl

Sat 4/18

7:20 pm-4:33 pm

1 stop13h 13m

$961

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 $961.

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 $1,171 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 October 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.
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  • 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
2,796 reviews
Search Hawaiian Airlines flights
Air CanadaPriceFrom $809Free CancellationRating
7.1
10,374 reviews
Search Air Canada flights
Alaska AirlinesPriceFrom $847Free CancellationRating
8.0
11,213 reviews
Search Alaska Airlines flights
DeltaPriceFrom $849Free CancellationRating
7.9
7,992 reviews
Search Delta flights
United AirlinesPriceFrom $907Free CancellationRating
7.4
8,999 reviews
Search United Airlines flights
Asiana AirlinesPriceFrom $912Free CancellationRating
8.2
483 reviews
Search Asiana Airlines flights
Korean AirPriceFrom $1,082Free CancellationRating
8.4
1,155 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