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

As of June 2026, 7 flights take off from South Korea and land in State of Washington each day. The most common flight departure time for this route is 9:00PM, with 83% of daily flights taking off in the evening.

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

As of June 2026, 53 flights take off from South Korea and land in State of Washington each week. The most common flight departure day for this route is Mon, with 19% of weekly flights taking off on this day.

How long is the flight from South Korea to State of Washington?

If you’re flying from a popular airport in South Korea, such as Incheon or Seoul, and flying into State of Washington, then you can expect flight times to average 9h 50m and 18h 50m, respectively.

What is the cheapest airline that flies from South Korea to Washington?

Alaska Airlines, United Airlines, and Philippine Airlines are the most popular carriers operating from South Korea to Washington

What airlines fly to State of Washington?

Korean Air, Asiana Airlines and Alaska Airlines are the top three most popular airlines that fly to State of Washington from South Korea according to our data. Korean Air is the first choice among our users, with 39% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 6 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from South Korea to Washington are refreshed on a daily basis.

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

As of June 2026, there are 6 operators available to choose from for flights from South Korea to Washington.

How old do you have to be to fly from South Korea to Washington?

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 South Korea to Washington.

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

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

$473 Cheap Flights from South Korea to Washington in 2026

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Find the cheapest flights from South Korea to Washington

Round-trip

One-way

Last minute

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Recent round-trip flight deals from South Korea to Washington

Enter your travel dates to find the best prices.

7:35 pm - 2:05 pm

ICN

SEA

10h 30mnonstop

2:05 pm - 5:30 pm

SEA

ICN

11h 25mnonstop

$967Alaska Airlines

Mon, Jun 22 - Mon, Jun 29

7:35 pm - 4:55 pm

ICN

PDX

13h 20m

1 stop

6:19 am - 5:30 pm

PDX

ICN

19h 11m

1 stop

$973Alaska Airlines

Sat, Jun 13 - Sun, Jul 5

7:20 am - 8:05 pm

ICN

SEA

28h 45m

1 stop

11:10 pm - 7:15 pm

SEA

ICN

28h 05m

1 stop

$986Philippine Airlines

Tue, Oct 6 - Tue, Oct 13

8:15 pm - 6:00 am

ICN

SEA

26h 45m

1 stop

3:05 pm - 11:20 am

SEA

ICN

27h 15m

1 stop

$998Delta

Tue, Nov 10 - Tue, Nov 24

7:20 am - 8:05 pm

ICN

SEA

28h 45m

1 stop

11:10 pm - 7:15 pm

SEA

ICN

28h 05m

1 stop

$1,002Philippine Airlines

Thu, Sep 10 - Sun, Sep 20

5:45 pm - 7:11 pm

ICN

PDX

17h 26m

1 stop

7:45 pm - 4:05 pm

PDX

ICN

28h 20m

1 stop

$1,071Air Canada

Sat, Jun 20 - Sun, Aug 30

5:45 pm - 2:45 pm

ICN

PDX

13h 00m

1 stop

3:30 pm - 5:05 pm

PDX

ICN

33h 35m

2 stops

$1,088Air Canada

Sat, Jun 13 - Sun, Jul 5

4:10 pm - 2:45 pm

ICN

GEG

15h 35m

1 stop

7:55 am - 3:55 pm

GEG

ICN

15h 00m

1 stop

$1,506Korean Air

Tue, Nov 24 - Thu, Nov 26

7:40 pm - 9:37 pm

ICN

GEG

18h 57m

1 stop

10:50 am - 5:55 pm

GEG

ICN

14h 05m

1 stop

$1,507Korean Air

Tue, Nov 24 - Thu, Nov 26

10:40 am - 4:13 pm

PUS

PDX

21h 33m

2 stops

7:40 pm - 8:45 pm

PDX

PUS

33h 05m

2 stops

$1,516Delta

Thu, Oct 8 - Mon, Oct 19

Philippine Airlines flights from South Korea to State of Washington

Our best Philippine Airlines deals on South Korea to State of Washington flight tickets

Philippine Airlines

Oct 6

ICN7:20 amIncheon Intl

28h 45m

1 stop

SEA8:05 pmSeattle/Tacoma Intl

Oct 13

SEA11:10 pmSeattle/Tacoma Intl

28h 05m

1 stop

ICN7:15 pmIncheon Intl

$986

Philippine Airlines

Sep 10

ICN7:20 amIncheon Intl

28h 45m

1 stop

SEA8:05 pmSeattle/Tacoma Intl

Sep 20

SEA11:10 pmSeattle/Tacoma Intl

28h 05m

1 stop

ICN7:15 pmIncheon Intl

$1,002

Philippine Airlines

Sep 21

ICN8:30 pmIncheon Intl

39h 35m

1 stop

SEA8:05 pmSeattle/Tacoma Intl

Sep 30

SEA11:10 pmSeattle/Tacoma Intl

28h 05m

1 stop

ICN7:15 pmIncheon Intl

$1,007

China Airlines flights from South Korea to State of Washington

Our best China Airlines deals on South Korea to State of Washington flight tickets

China Airlines

Sep 12

PUS8:00 pmBusan Gimhae

15h 45m

1 stop

SEA7:45 pmSeattle/Tacoma Intl

Sep 14

SEA1:55 amSeattle/Tacoma Intl

17h 20m

1 stop

PUS11:15 amBusan Gimhae

$1,247

China Airlines

Sep 12

PUS8:00 pmBusan Gimhae

15h 45m

1 stop

SEA7:45 pmSeattle/Tacoma Intl

Sep 14

SEA1:55 amSeattle/Tacoma Intl

17h 20m

1 stop

PUS11:15 amBusan Gimhae

$1,251

momondo Fare Finder

Use the filters below to find and compare flights from South Korea to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Mon 6/22

7:35 pm-2:05 pm

Nonstop10h 30m

Seattle/Tacoma Intl

Mon 6/29

2:05 pm-5:30 pm

Nonstop11h 25m

$967

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Sat 6/13

7:35 pm-4:55 pm

1 stop13h 20m

Portland

Sun 7/5

6:19 am-5:30 pm

1 stop19h 11m

$973

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Tue 10/6

7:20 am-8:05 pm

1 stop28h 45m

Seattle/Tacoma Intl

Tue 10/13

11:10 pm-7:15 pm

1 stop28h 05m

$986

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Tue 11/10

8:15 pm-6:00 am

1 stop26h 45m

Seattle/Tacoma Intl

Tue 11/24

3:05 pm-11:20 am

1 stop27h 15m

$998

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Thu 9/10

7:20 am-8:05 pm

1 stop28h 45m

Seattle/Tacoma Intl

Sun 9/20

11:10 pm-7:15 pm

1 stop28h 05m

$1,002

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Sat 6/20

5:45 pm-7:11 pm

1 stop17h 26m

Portland

Sun 8/30

7:45 pm-4:05 pm

1 stop28h 20m

$1,071

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Sat 6/13

5:45 pm-2:45 pm

1 stop13h 00m

Portland

Sun 7/5

3:30 pm-5:05 pm

2 stops33h 35m

$1,088

IncheonSpokane

ICN - GEG

ICNGEG

Incheon Intl

Tue 11/24

4:10 pm-2:45 pm

1 stop15h 35m

Spokane

Thu 11/26

7:55 am-3:55 pm

1 stop15h 00m

$1,506

IncheonSpokane

ICN - GEG

ICNGEG

Incheon Intl

Tue 11/24

7:40 pm-9:37 pm

1 stop18h 57m

Spokane

Thu 11/26

10:50 am-5:55 pm

1 stop14h 05m

$1,507

BusanPortland

PUS - PDX

PUSPDX

Busan Gimhae

Thu 10/8

10:40 am-4:13 pm

2 stops21h 33m

Portland

Mon 10/19

7:40 pm-8:45 pm

2 stops33h 05m

$1,516

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from South Korea 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

Airlines

Other information

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

The month of August is, on average, the cheapest month to fly to State of Washington from South Korea, with most prices found around $143. If you aren’t able to travel to State of Washington during the month of August, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $329.

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

The cheapest day to depart from South Korea 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 $706. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from South Korea to State of Washington for around $919.

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 afternoon when flights can be purchased for as low as $758. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $765 on average. Flights to State of Washington from South Korea in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest South Korea to Washington flight route?

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

How far in advance should I book a flight from South Korea to Washington?

You are more likely to see cheaper flights to State of Washington from South Korea when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $712 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 South Korea for as low as $585 on momondo.

What cabin class options are available on South Korea to State of Washington flights?

There are 4 cabin classes available to choose from on South Korea to State of 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 South Korea to State of Washington flights?

You could potentially save up to 21% on your flight if you consider stops on a South Korea to State of Washington flight.

Cheap South Korea to State of Washington flight deals and tips

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

Best Price Found	$611
Fastest flight time	9h 50m
Direct flights	Every day
Airports in State of Washington	96 airports

The best one-way flight to State of Washington from South Korea in the past 72 hours is $611. The best round-trip flight deal from South Korea to State of Washington found on momondo in the last 72 hours is $996.

The fastest flight from South Korea to State of Washington takes 9h 50m

Direct flights go from South Korea to State of Washington every day.

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

Search flight deals

Frequently asked questions about flying from South Korea to Washington

When did momondo last update prices for flights from South Korea to Washington?
Prices for flights from South Korea to Washington are refreshed on a daily basis.
How many operators does momondo search for flights from South Korea to Washington?
As of June 2026, there are 6 operators available to choose from for flights from South Korea to Washington.
How old do you have to be to fly from South Korea to Washington?
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 South Korea to Washington.
What documentation or ID do you need to fly to Washington?
The required travel and health documents for your Washington 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 Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from South Korea to State of Washington?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from South Korea to State of Washington is Boeing 787-10 Dreamliner (26.73% of total bookings). The next most popular plane models are Boeing 787-9 Dreamliner (22.22%), Airbus A350-900 (19.60%), and Boeing 777-200/200ER (8.33%).

Best airlines flying from South Korea to State of Washington

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

Airline	Rating	Free Cancellation	Price
Hawaiian Airlines	PriceFrom $351	Free Cancellation	Rating 7.8 2,831 reviews	Search Hawaiian Airlines flights
Air Canada	PriceFrom $472	Free Cancellation	Rating 7.1 11,126 reviews	Search Air Canada flights
Alaska Airlines	PriceFrom $476	Free Cancellation	Rating 7.9 12,464 reviews	Search Alaska Airlines flights
Delta	PriceFrom $484	Free Cancellation	Rating 7.9 8,395 reviews	Search Delta flights
Korean Air	PriceFrom $486	Free Cancellation	Rating 8.4 1,217 reviews	Search Korean Air flights
Asiana Airlines	PriceFrom $512	Free Cancellation	Rating 8.1 539 reviews	Search Asiana Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington from South Korea.

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

momondo does allow users to show only those flights to Washington from South Korea which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from South Korea to Washington?

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

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

Yes momondo offers price alerts on flights to Washington from South Korea. 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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Cheap flights from South Korea to Washington from $473

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from South Korea to Washington departing on 6/22. 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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Philippine Airlines flights from South Korea to State of Washington

Our best Philippine Airlines deals on South Korea to State of Washington flight tickets

China Airlines flights from South Korea to State of Washington

Our best China Airlines deals on South Korea to State of Washington flight tickets

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Use the filters below to find and compare flights from South Korea to Washington that are best for you.

See travel insights to Washington from

How to get the cheapest flight ticket from South Korea 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 South Korea to Washington flight route?

How far in advance should I book a flight from South Korea to Washington?

What cabin class options are available on South Korea to State of Washington flights?

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

What is the cheapest airline that flies from South Korea to Washington?

What airlines fly to State of Washington?

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

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

How long is the flight from South Korea to State of Washington?

Cheap South Korea to State of Washington flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in State of Washington

Frequently asked questions about flying from South Korea to Washington

Best airlines flying from South Korea to State of Washington

Compare and see reviews for airlines that fly from South Korea 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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