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

As of March 2026, 8 flights take off from South Korea and land in State of Washington each day. The most common flight departure time for this route is 8:00PM, with 76% of daily flights taking off in the evening.

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 South Korea 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.

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

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

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

As of March 2026, 58 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 17% 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 Busan, and flying into State of Washington, then you can expect flight times to average 9h 50m and 18h 31m, respectively.

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 March 2026, there are 8 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.

$341 Cheap Flights from South Korea to Washington in 2026

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Find the cheapest flights from South Korea to Washington

Round-trip

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Recent round-trip flight deals from South Korea to Washington

Enter your travel dates to find the best prices.

5:45 pm - 6:30 pm

ICN

PDX

16h 45m

1 stop

10:10 am - 4:05 pm

PDX

ICN

13h 55m

1 stop

$519Air Canada

Wed, Apr 29 - Wed, May 6

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

Mon, Apr 20 - Thu, Apr 23

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

Wed, Apr 15 - Fri, 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

Tue, Apr 14 - Wed, Apr 15

7:00 pm - 9:32 pm

ICN

PDX

18h 32m

1 stop

9:05 am - 4:50 pm

PDX

ICN

15h 45m

1 stop

$565Delta

Fri, May 1 - Wed, May 6

7:00 pm - 11:59 pm

ICN

PDX

20h 59m

1 stop

3:35 pm - 4:50 pm

PDX

ICN

33h 15m

1 stop

$570Delta

Tue, Apr 7 - Tue, Apr 21

7:35 pm - 1:35 pm

ICN

SEA

10h 00mnonstop

1:40 pm - 5:30 pm

SEA

ICN

11h 50mnonstop

$602Alaska Airlines

Sat, Apr 25 - Mon, May 4

7:35 pm - 1:35 pm

ICN

SEA

10h 00mnonstop

1:40 pm - 5:30 pm

SEA

ICN

11h 50mnonstop

$607Alaska Airlines

Sat, Apr 25 - Mon, May 4

10:40 am - 10:40 am

PUS

SEA

16h 00m

1 stop

1:00 pm - 8:45 pm

SEA

PUS

15h 45m

1 stop

$867Korean Air

Tue, Apr 28 - Sat, May 2

8:00 am - 1:11 pm

PUS

SEA

21h 11m

1 stop

1:00 pm - 8:45 pm

SEA

PUS

15h 45m

1 stop

$919Korean Air

Fri, May 8 - Sat, May 16

Alaska Airlines flights from South Korea to State of Washington

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

Alaska Airlines

May 1

ICN7:35 pmIncheon Intl

10h 00m

SEA1:35 pmSeattle/Tacoma Intl

May 9

SEA1:40 pmSeattle/Tacoma Intl

11h 50m

ICN5:30 pmIncheon Intl

$584

Alaska Airlines

Mar 20

ICN8:35 pmIncheon Intl

10h 20m

SEA2:55 pmSeattle/Tacoma Intl

Apr 10

SEA2:45 pmSeattle/Tacoma Intl

11h 50m

ICN6:35 pmIncheon Intl

$598

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

Japan Airlines flights from South Korea to State of Washington

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

Japan Airlines

Apr 6

GMP8:00 amSeoul Gimpo Intl

18h 35m

1 stop

SEA10:35 amSeattle/Tacoma Intl

Apr 13

SEA1:15 pmSeattle/Tacoma Intl

29h 25m

1 stop

GMP10:40 amSeoul Gimpo Intl

$1,166

Japan Airlines

Mar 3

GMP12:05 pmSeoul Gimpo Intl

14h 50m

1 stop

SEA9:55 amSeattle/Tacoma Intl

Mar 9

SEA1:30 pmSeattle/Tacoma Intl

16h 35m

1 stop

GMP10:05 pmSeoul Gimpo Intl

$1,248

Japan Airlines

Mar 3

GMP12:05 pmSeoul Gimpo Intl

14h 50m

1 stop

SEA9:55 amSeattle/Tacoma Intl

Mar 9

SEA8:15 amSeattle/Tacoma Intl

21h 50m

2 stops

GMP10:05 pmSeoul Gimpo Intl

$1,254

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

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Wed 4/29

5:45 pm-6:30 pm

1 stop16h 45m

Portland

Wed 5/6

10:10 am-4:05 pm

1 stop13h 55m

$519

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Mon 4/20

5:45 pm-6:30 pm

1 stop16h 45m

Portland

Thu 4/23

7:05 pm-4:05 pm

1 stop29h 00m

$523

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Wed 4/15

5:45 pm-9:10 am

1 stop31h 25m

Portland

Fri 4/17

9:50 am-4:05 pm

1 stop14h 15m

$550

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Tue 4/14

5:45 pm-2:40 pm

1 stop12h 55m

Portland

Wed 4/15

7:05 pm-4:05 pm

1 stop29h 00m

$552

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Fri 5/1

7:00 pm-9:32 pm

1 stop18h 32m

Portland

Wed 5/6

9:05 am-4:50 pm

1 stop15h 45m

$565

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Tue 4/7

7:00 pm-11:59 pm

1 stop20h 59m

Portland

Tue 4/21

3:35 pm-4:50 pm

1 stop33h 15m

$570

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Sat 4/25

7:35 pm-1:35 pm

Nonstop10h 00m

Seattle/Tacoma Intl

Mon 5/4

1:40 pm-5:30 pm

Nonstop11h 50m

$602

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Sat 4/25

7:35 pm-1:35 pm

Nonstop10h 00m

Seattle/Tacoma Intl

Mon 5/4

1:40 pm-5:30 pm

Nonstop11h 50m

$607

BusanSeattle

PUS - SEA

PUSSEA

Busan Gimhae

Tue 4/28

10:40 am-10:40 am

1 stop16h 00m

Seattle/Tacoma Intl

Sat 5/2

1:00 pm-8:45 pm

1 stop15h 45m

$867

BusanSeattle

PUS - SEA

PUSSEA

Busan Gimhae

Fri 5/8

8:00 am-1:11 pm

1 stop21h 11m

Seattle/Tacoma Intl

Sat 5/16

1:00 pm-8:45 pm

1 stop15h 45m

$919

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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 November is, on average, the cheapest month to fly to State of Washington from South Korea, 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 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 $711. 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 $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 South Korea in the afternoon 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 to State of 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 $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 South Korea for as low as $519 on momondo.

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

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

You could potentially save up to 19% 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	$616
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 $616. The best round-trip flight deal from South Korea to State of Washington found on momondo in the last 72 hours is $690.

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

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 March 2026, there are 8 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 (28.91% of total bookings). The next most popular plane models are Boeing 787-9 Dreamliner (26.61%), Airbus A350-900 (20.24%), and Boeing 777-200/200ER (8.67%).

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 2,836 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 11,978 reviews	Search Alaska Airlines flights
Delta	PriceFrom $485	Free Cancellation	Rating 7.9 8,239 reviews	Search Delta flights
United Airlines	PriceFrom $516	Free Cancellation	Rating 7.4 9,377 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 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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Flights to Seattlefrom $48

Cheap flights from South Korea to Washington from $341

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 5/14. 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 South Korea to State of Washington

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

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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 to State of Washington?

What cabin class options are available on South Korea to 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

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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