What airlines fly to State of Washington?

Asiana Airlines, Korean Air and Delta are the top three most popular airlines that fly to State of Washington from South Korea according to our data. Asiana Airlines 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 6 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?

Air Canada, Hainan Airlines, and WestJet 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 November 2025, 56 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 18% of weekly flights taking off on this day.

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

As of November 2025, 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 90% of daily flights taking off in the evening.

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 13h 30m, 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 November 2025, 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.

$298 Cheap Flights from South Korea to Washington in 2025/26

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Recent round-trip flight deals from South Korea to Washington

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8:35 pm - 1:45 pmICN-SEA

10h 10mnonstop

1:40 pm - 6:35 pmSEA-ICN

11h 55mnonstop

$461Hawaiian Airlines

Find Deal

Fri, Nov 21 - Sun, Nov 30

8:35 pm - 1:45 pmICN-SEA

10h 10mnonstop

1:40 pm - 6:35 pmSEA-ICN

11h 55mnonstop

$462Hawaiian Airlines

Find Deal

Sat, Jan 17 - Fri, Feb 6

9:00 pm - 1:55 pmICN-SEA

9h 55mnonstop

12:10 am - 5:20 amSEA-ICN

12h 10mnonstop

$602Asiana Airlines

Find Deal

Tue, Dec 2 - Mon, Dec 8

9:00 pm - 1:55 pmICN-SEA

9h 55mnonstop

12:10 am - 5:20 amSEA-ICN

12h 10mnonstop

$604Asiana Airlines

Find Deal

Tue, Dec 23 - Tue, Dec 30

4:10 pm - 9:00 amICN-SEA

9h 50mnonstop

11:00 am - 3:55 pmSEA-ICN

11h 55mnonstop

$612Korean Air

Find Deal

Tue, Dec 23 - Tue, Jan 13

4:10 pm - 9:00 amICN-SEA

9h 50mnonstop

11:00 am - 3:55 pmSEA-ICN

11h 55mnonstop

$613Korean Air

Find Deal

Thu, Dec 25 - Wed, Dec 31

8:05 pm - 6:47 pmICN-GEG

15h 42m1 stop

5:05 am - 4:30 pmGEG-ICN

18h 25m1 stop

$623Delta

Find Deal

Thu, Feb 5 - Mon, Feb 9

8:05 pm - 4:24 pmICN-PDX

13h 19m1 stop

7:30 pm - 4:30 pmPDX-ICN

28h 00m1 stop

$624Delta

Find Deal

Thu, Dec 25 - Sat, Jan 3

8:35 pm - 10:53 amICN-PDX

31h 18m1 stop

2:38 pm - 6:35 pmPDX-ICN

34h 57m1 stop

$626Alaska Airlines

Find Deal

Sun, Dec 28 - Fri, Jan 16

8:35 pm - 5:59 pmICN-PDX

14h 24m1 stop

9:30 pm - 6:35 pmPDX-ICN

52h 05m2 stops

$648Alaska Airlines

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Mon, Feb 9 - Mon, Feb 16

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

Feb 13

GMP8:00 amSeoul Gimpo Intl

18h 55m

1 stop

SEA9:55 amSeattle/Tacoma Intl

Feb 21

SEA12:30 pmSeattle/Tacoma Intl

16h 35m

1 stop

GMP10:05 pmSeoul Gimpo Intl

$963

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Japan Airlines

Nov 12

GMP12:05 pmSeoul Gimpo Intl

14h 45m

1 stop

SEA9:50 amSeattle/Tacoma Intl

Nov 19

SEA12:10 pmSeattle/Tacoma Intl

16h 55m

1 stop

GMP10:05 pmSeoul Gimpo Intl

$1,374

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Hawaiian Airlines flights from South Korea to State of Washington

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

Hawaiian Airlines

Nov 21

ICN8:35 pmIncheon Intl

10h 10m

SEA1:45 pmSeattle/Tacoma Intl

Nov 30

SEA1:40 pmSeattle/Tacoma Intl

11h 55m

ICN6:35 pmIncheon Intl

$461

Find similar

Hawaiian Airlines

Jan 17

ICN8:35 pmIncheon Intl

10h 10m

SEA1:45 pmSeattle/Tacoma Intl

Feb 6

SEA1:40 pmSeattle/Tacoma Intl

11h 55m

ICN6:35 pmIncheon Intl

$462

Find similar

Hawaiian Airlines

Nov 23

ICN8:35 pmIncheon Intl

10h 10m

SEA1:45 pmSeattle/Tacoma Intl

Dec 3

SEA1:40 pmSeattle/Tacoma Intl

11h 55m

ICN6:35 pmIncheon Intl

$465

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momondo Fare Finder

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

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Fly to

Route

Depart

Return

Price

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Fri 11/21

8:35 pm-1:45 pm

Nonstop10h 10m

Seattle/Tacoma Intl

Sun 11/30

1:40 pm-6:35 pm

Nonstop11h 55m

$461

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Sat 1/17

8:35 pm-1:45 pm

Nonstop10h 10m

Seattle/Tacoma Intl

Fri 2/6

1:40 pm-6:35 pm

Nonstop11h 55m

$462

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Tue 12/2

9:00 pm-1:55 pm

Nonstop9h 55m

Seattle/Tacoma Intl

Mon 12/8

12:10 am-5:20 am

Nonstop12h 10m

$602

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Tue 12/23

9:00 pm-1:55 pm

Nonstop9h 55m

Seattle/Tacoma Intl

Tue 12/30

12:10 am-5:20 am

Nonstop12h 10m

$604

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Tue 12/23

4:10 pm-9:00 am

Nonstop9h 50m

Seattle/Tacoma Intl

Tue 1/13

11:00 am-3:55 pm

Nonstop11h 55m

$612

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

Thu 12/25

4:10 pm-9:00 am

Nonstop9h 50m

Seattle/Tacoma Intl

Wed 12/31

11:00 am-3:55 pm

Nonstop11h 55m

$613

IncheonSpokane

ICN - GEG

ICNGEG

Incheon Intl

Thu 2/5

8:05 pm-6:47 pm

1 stop15h 42m

Spokane

Mon 2/9

5:05 am-4:30 pm

1 stop18h 25m

$623

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Thu 12/25

8:05 pm-4:24 pm

1 stop13h 19m

Portland

Sat 1/3

7:30 pm-4:30 pm

1 stop28h 00m

$624

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Sun 12/28

8:35 pm-10:53 am

1 stop31h 18m

Portland

Fri 1/16

2:38 pm-6:35 pm

1 stop34h 57m

$626

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

Mon 2/9

8:35 pm-5:59 pm

1 stop14h 24m

Portland

Mon 2/16

9:30 pm-6:35 pm

2 stops52h 05m

$648

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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 $573. If you aren’t able to travel to State of Washington during the month of November, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $610.

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 Thursday. Travelers who choose to depart for State of Washington on a Thursday will often find tickets for as low as $745. 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 $924.

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 $788. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,059 on average. Flights to State of Washington from South Korea in the morning 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 $718 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 $613 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 25% 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	$407
Fastest flight time	9h 50m
Direct flights	Every day
Airports in State of Washington	1 airport

The best one-way flight to State of Washington from South Korea in the past 72 hours is $407. The best round-trip flight deal from South Korea to State of Washington found on momondo in the last 72 hours is $533.

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 is 1 airport near State of Washington: 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 November 2025, 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 787-9 Dreamliner (31.93% of total bookings). The next most popular plane models are Airbus A350-900 (18.74%), Boeing 787-10 Dreamliner (17.92%), and Boeing 777-300ER (7.05%).

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
Asiana Airlines	PriceFrom $469	Free Cancellation	Rating 8.2 484 reviews	Search Asiana Airlines flights
Korean Air	PriceFrom $470	Free Cancellation	Rating 8.4 1,160 reviews	Search Korean Air flights
Air Canada	PriceFrom $472	Free Cancellation	Rating 7.1 10,415 reviews	Search Air Canada flights
Alaska Airlines	PriceFrom $476	Free Cancellation	Rating 8.0 11,243 reviews	Search Alaska Airlines flights
Hawaiian Airlines	PriceFrom $485	Free Cancellation	Rating 7.8 2,804 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $606	Free Cancellation	Rating 7.9 8,001 reviews	Search Delta 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.

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.

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Cheap flights from South Korea to Washington from $298

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 12/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

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Find the cheapest flights from South Korea to Washington

Recent round-trip flight deals from South Korea to Washington

Recent one-way flight deals from South Korea to Washington

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Recent direct flight deals from South Korea to Washington

Japan Airlines flights from South Korea to State of Washington

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

Hawaiian Airlines flights from South Korea to State of Washington

Our best Hawaiian 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.

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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

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?

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?

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 25% on your flight if you consider stops on a South Korea to State of Washington flight.

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

Air Canada, Hainan Airlines, and WestJet are the most popular carriers operating 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?

As of November 2025, 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 90% 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 November 2025, 56 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 18% 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 13h 30m, respectively.

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

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

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

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

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

What is the most popular plane model from South Korea to 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?

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

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

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

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

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

Popular cities in Washington

Popular flights according to clicks in the last 7 days on momondo