How many flights depart from Seoul to State of Washington on average per week?

The number of flights available between Seoul and State of Washington is 47 per week as of March 2026. The most frequent departure day is Mon, with 21% of weekly flights leaving on this day.

What is the cheapest airline that flies from Seoul to Washington?

Air Canada, Hainan Airlines, and Korean Air are the most popular carriers operating from Seoul to Washington

What airlines fly to State of Washington?

Korean Air, Asiana Airlines and Delta are the top three most popular airlines that fly to State of Washington from Seoul according to our data. Korean Air is the first choice among our users, with 41% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 7 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

How many flights depart from Seoul to State of Washington on average per day?

6 flights are operational daily from Seoul to State of Washington as of March 2026. The most popular departure time for this route is 8:00PM, with 76% of flights per day taking off in the evening.

How long is the flight from Seoul to State of Washington?

If you’re flying from a popular airport in Seoul, such as Incheon or Seoul, and flying into State of Washington, then you can expect flight times to average 9h 55m and 17h 45m, respectively.

When did momondo last update prices for flights from Seoul to Washington?

Prices for flights from Seoul to Washington were last updated today.

How many operators does momondo search for flights from Seoul to Washington?

There are 8 operators available for flights from Seoul to Washington as of March 2026.

How old do you have to be to fly from Seoul to Washington?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seoul to Washington.

What documentation or ID do you need to fly to Washington?

The necessary travel and health documents for your Washington trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$345 Cheap Flights from Seoul to Washington in 2026

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Cheap round-trip flights

Enter your travel dates to find the best prices.

5:45 pm - 6:30 pm

ICN

PDX

16h 45m

1 stop

7:05 pm - 4:05 pm

PDX

ICN

29h 00m

1 stop

$523Air Canada

Mo, Apr 20 - Do, Apr 23

5:45 pm - 2:40 pm

ICN

PDX

12h 55m

1 stop

7:45 pm - 4:05 pm

PDX

ICN

28h 20m

1 stop

$524Air Canada

Fr, Apr 24 - Mo, Mai 4

5:45 pm - 9:10 am

ICN

PDX

31h 25m

1 stop

9:50 am - 4:05 pm

PDX

ICN

14h 15m

1 stop

$550Asiana Airlines

Mi, Apr 15 - Fr, Apr 17

5:45 pm - 2:40 pm

ICN

PDX

12h 55m

1 stop

7:05 pm - 4:05 pm

PDX

ICN

29h 00m

1 stop

$552Asiana Airlines

Di, Apr 14 - Mi, Apr 15

8:35 pm - 2:55 pm

ICN

SEA

10h 20mnonstop

2:45 pm - 6:35 pm

SEA

ICN

11h 50mnonstop

$556Alaska Airlines

Fr, Mrz 20 - Mo, Apr 13

7:00 pm - 8:59 pm

ICN

PDX

17h 59m

1 stop

7:32 pm - 4:50 pm

PDX

ICN

29h 18m

1 stop

$565Delta

Di, Apr 7 - Di, Apr 21

8:35 pm - 2:35 pm

ICN

SEA

10h 00mnonstop

2:45 pm - 6:35 pm

SEA

ICN

11h 50mnonstop

$596Alaska Airlines

Do, Apr 2 - Mi, Apr 15

7:35 pm - 1:35 pm

ICN

SEA

10h 00mnonstop

1:40 pm - 5:30 pm

SEA

ICN

11h 50mnonstop

$602Alaska Airlines

Sa, Apr 25 - Mo, Mai 4

7:35 pm - 2:16 pm

ICN

GEG

34h 41m

1 stop

6:00 am - 5:30 pm

GEG

ICN

19h 30m

1 stop

$650Alaska Airlines

Do, Apr 30 - Mo, Mai 4

8:05 pm - 12:03 am

ICN

GEG

19h 58m

1 stop

3:25 pm - 3:55 pm

GEG

ICN

32h 30m

1 stop

$927Delta

Mi, Mrz 18 - Sa, Mrz 21

Alaska Airlines flights from Seoul to State of Washington

Our best Alaska Airlines deals on Seoul to State of Washington flight tickets

Alaska Airlines

Mar 20

ICN8:35 pmIncheon Intl

10h 20m

SEA2:55 pmSeattle/Tacoma Intl

Apr 5

SEA2:45 pmSeattle/Tacoma Intl

11h 50m

ICN6:35 pmIncheon Intl

$556

Alaska Airlines

Apr 2

ICN8:35 pmIncheon Intl

10h 00m

SEA2:35 pmSeattle/Tacoma Intl

Apr 15

SEA2:45 pmSeattle/Tacoma Intl

11h 50m

ICN6:35 pmIncheon Intl

$596

Alaska Airlines

Apr 24

ICN7:35 pmIncheon Intl

30h 03m

2 stops

PDX9:38 amPortland

May 4

PDX8:45 amPortland

16h 45m

1 stop

ICN5:30 pmIncheon Intl

$600

Korean Air flights from Seoul to State of Washington

Our best Korean Air deals on Seoul to State of Washington flight tickets

Korean Air

Apr 17

ICN12:25 pmIncheon Intl

24h 14m

1 stop

PDX8:39 pmPortland

Apr 19

PDX4:35 pmPortland

33h 15m

1 stop

ICN5:50 pmIncheon Intl

$640

Korean Air

May 1

ICN7:00 pmIncheon Intl

10h 11m

SEA1:11 pmSeattle/Tacoma Intl

May 5

SEA1:00 pmSeattle/Tacoma Intl

11h 50m

ICN4:50 pmIncheon Intl

$650

Korean Air

Apr 30

ICN7:00 pmIncheon Intl

10h 07m

SEA1:07 pmSeattle/Tacoma Intl

May 4

SEA12:50 pmSeattle/Tacoma Intl

11h 50m

ICN4:40 pmIncheon Intl

$655

Fly from

Fly to

Route

Depart

Return

Price

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Mo 4/20

5:45 pm-6:30 pm

1 stop16h 45m

Portland

Do 4/23

7:05 pm-4:05 pm

1 stop29h 00m

$523

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Fr 4/24

5:45 pm-2:40 pm

1 stop12h 55m

Portland

Mo 5/4

7:45 pm-4:05 pm

1 stop28h 20m

$524

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Mi 4/15

5:45 pm-9:10 am

1 stop31h 25m

Portland

Fr 4/17

9:50 am-4:05 pm

1 stop14h 15m

$550

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Di 4/14

5:45 pm-2:40 pm

1 stop12h 55m

Portland

Mi 4/15

7:05 pm-4:05 pm

1 stop29h 00m

$552

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Fr 3/20

8:35 pm-2:55 pm

Nonstop10h 20m

Seattle/Tacoma Intl

Mo 4/13

2:45 pm-6:35 pm

Nonstop11h 50m

$556

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Di 4/7

7:00 pm-8:59 pm

1 stop17h 59m

Portland

Di 4/21

7:32 pm-4:50 pm

1 stop29h 18m

$565

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Do 4/2

8:35 pm-2:35 pm

Nonstop10h 00m

Seattle/Tacoma Intl

Mi 4/15

2:45 pm-6:35 pm

Nonstop11h 50m

$596

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Sa 4/25

7:35 pm-1:35 pm

Nonstop10h 00m

Seattle/Tacoma Intl

Mo 5/4

1:40 pm-5:30 pm

Nonstop11h 50m

$602

IncheonSpokane

ICN - GEG

ICNGEG

Incheon Intl

Do 4/30

7:35 pm-2:16 pm

1 stop34h 41m

Spokane

Mo 5/4

6:00 am-5:30 pm

1 stop19h 30m

$650

IncheonSpokane

ICN - GEG

ICNGEG

Incheon Intl

Mi 3/18

8:05 pm-12:03 am

1 stop19h 58m

Spokane

Sa 3/21

3:25 pm-3:55 pm

1 stop32h 30m

$927

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How to get the cheapest flight ticket from Seoul to State of Washington

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

Prices

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What is the cheapest month to fly to State of Washington?

The month of November is, on average, the cheapest month to fly to State of Washington from Seoul, with most prices found around $556. If you aren’t able to travel to State of Washington during the month of November, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $569.

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart from Seoul to State of Washington is on a Monday. Travelers who choose to depart for State of Washington on a Monday will often find tickets for as low as $711. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Seoul to State of Washington for around $859.

What is the cheapest time of day to depart on your flight to State of Washington?

The cheapest time of day to fly to State of Washington is in the evening when flights can be purchased for as low as $741. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $753 on average. Flights to State of Washington from Seoul in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Seoul to Washington flight route?

Fly from Incheon Intl to Seattle/Tacoma Intl for the best Seoul - Washington flight prices

How far in advance should I book a flight to State of Washington?

You are more likely to see cheaper flights to State of Washington from Seoul when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $697 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from Seoul for as low as $519 on momondo.

What cabin class options are available on Seoul to Washington flights?

There are 4 cabin classes available to choose from on Seoul to Washington flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seoul to State of Washington flights?

You could potentially save up to 19% on your flight if you consider stops on a Seoul to State of Washington flight.

Cheap Seoul to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seoul to State of Washington

Best Price Found	$616
Fastest flight time	9h 55m
Direct flights	Every day
Airports in State of Washington	96 airports

The best one-way flight to State of Washington from Seoul in the past 72 hours is $616. The best round-trip flight deal from Seoul to State of Washington found on momondo in the last 72 hours is $690.

The fastest flight from Seoul to State of Washington takes 9h 55m

Direct flights go from Seoul to State of Washington every day.

There are 96 airports in State of Washington. From Seoul there are direct flights to Seattle/Tacoma Intl (SEA).

Search flight deals

When did momondo last update prices for flights from Seoul to Washington?
Prices for flights from Seoul to Washington were last updated today.
How many operators does momondo search for flights from Seoul to Washington?
There are 8 operators available for flights from Seoul to Washington as of March 2026.
How old do you have to be to fly from Seoul to Washington?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seoul to Washington.
What documentation or ID do you need to fly to Washington?
The necessary travel and health documents for your Washington trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seoul to State of Washington?
Based on momondo bookings for flights between Seoul and State of Washington, the leading plane model is Boeing 787-10 Dreamliner, making up 28.91% of the total bookings. Other popular models include Boeing 787-9 Dreamliner with 26.61%, Airbus A350-900 with 20.24%, and Boeing 777-200/200ER with 8.67%.

Best airlines flying from Seoul to State of Washington

Compare and see reviews for airlines that fly from Seoul to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
Hawaiian Airlines	PriceFrom $351	Free Cancellation	Rating 7.8 2,836 reviews	Search Hawaiian Airlines flights
Asiana Airlines	PriceFrom $466	Free Cancellation	Rating 8.1 502 reviews	Search Asiana Airlines flights
Korean Air	PriceFrom $470	Free Cancellation	Rating 8.4 1,195 reviews	Search Korean Air flights
Alaska Airlines	PriceFrom $476	Free Cancellation	Rating 8.0 11,983 reviews	Search Alaska Airlines flights
Delta	PriceFrom $485	Free Cancellation	Rating 7.9 8,245 reviews	Search Delta flights
United Airlines	PriceFrom $516	Free Cancellation	Rating 7.4 9,383 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $583	Free Cancellation	Rating 0.0	Search Alaska Airlines flights

Why use momondo?

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

It is quick and easy to find Seoul to Washington 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 Washington that suits you.

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

Yes. momondo enables you to select and highlight flights to Washington from Seoul with this policy.

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

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 Seoul to Washington.

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

If you are not ready to book a flight from Seoul to Washington now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington and let you know when they change.

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Cheap flights from Seoul to Washington from $345

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seoul to Washington departing on 4/24. 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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Alaska Airlines flights from Seoul to State of Washington

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How to get the cheapest flight ticket from Seoul to State of Washington

What is the cheapest month to fly to State of Washington?

What is the cheapest day to depart on your flight to State of Washington?

What is the cheapest time of day to depart on your flight to State of Washington?

What is the cheapest Seoul to Washington flight route?

How far in advance should I book a flight to State of Washington?

What cabin class options are available on Seoul to Washington flights?

Can stopping save me money on Seoul to State of Washington flights?

What is the cheapest airline that flies from Seoul to Washington?

What airlines fly to State of Washington?

How many flights depart from Seoul to State of Washington on average per day?

How many flights depart from Seoul to State of Washington on average per week?

How long is the flight from Seoul to State of Washington?

Cheap Seoul to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seoul to State of Washington

Best Price Found

Fastest flight time

Direct flights

Airports in State of Washington

Best airlines flying from Seoul to State of Washington

Compare and see reviews for airlines that fly from Seoul to State of Washington with momondo

Why use momondo?

An easier way to manage your State of Washington trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Washington

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