How popular is this State of Washington to South Korea flight route?

The Washington to South Korea flight path was viewed by 200 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

What are the cheapest airlines to fly from State of Washington to South Korea one-way?

The cheapest airlines for a one-way flight from State of Washington to South Korea are WestJet ($489), China Airlines ($541), and EVA Air ($574).

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

Travelers have found it’s best to book a flight 24 days in advance to save up to 35% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 24 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from State of Washington to South Korea 1-2 weeks in advance for as low as $1,135, or $1,165 for flights within the next 24 hours.

What is the cheapest month to fly from State of Washington to South Korea?

February is one of the best times of the year to fly to South Korea from State of Washington. Prices for February average $1,256 per person but you can even find prices for as low as $857. The most expensive prices can be found in the month of June. Opting for a February flight can save you 33% on your journey compared to booking in June

Can I find deals for flights from Washington to South Korea that include hotel bookings?

Yes. In addition to deals on Washington to South Korea flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Washington to South Korea?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to South Korea.

Can I find deals for business class flights from Washington to South Korea?

Yes. Cheapflights offers flight deals from Washington to South Korea by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$934+ Flights from Washington to South Korea

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Cheap flight deals from Washington to South Korea

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$879 (Kiwi.com)
One-way from	$448 (Kiwi.com)
Popular in	June
Cheapest in	February
Average price	$1,185
Good round-trip deal	$787 or less
Good one-way deal	$503 or less

Provider with most accurate pricing for Seattle/Tacoma Intl-Seoul (SEL) flight deals.

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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Seoul (SEL) flights.

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From Washington to South Korea

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One-way flight from Washington to South Korea

Search Deals

Highest demand for flights based on searches. 18% potential increase in price ($291 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

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Price to beat on a round-trip flight from Washington to South Korea.

Search Deals

Price to beat on a one-way flight from Washington to South Korea.

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Find flight deals from Washington to South Korea

Cheapest flights from Washington to South Korea
Explore the most affordable flight options available from Washington to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 1, 2025.

Mon 4/219:40 amPDX - ICN

2 stops43h 35mMultiple Airlines

Mon 5/196:20 pmICN - PDX

1 stop35h 16mMultiple Airlines

Deal found 3/31

$879

Tue 9/21:40 amSEA - PUS

1 stop17h 35mChina Airlines

Tue 9/3012:15 pmPUS - SEA

1 stop23h 05mChina Airlines

Deal found 3/31

$919

Sat 9/131:50 pmSEA - ICN

1 stop36h 55mMultiple Airlines

Tue 10/145:45 pmICN - SEA

1 stop20h 31mMultiple Airlines

Deal found 3/31

$948

Sun 4/131:10 amSEA - ICN

1 stop26h 25mChina Airlines

Sun 5/1812:35 pmICN - SEA

1 stop22h 55mChina Airlines

Deal found 3/31

$952

Sun 9/72:05 pmSEA - ICN

1 stop36h 40mWestJet

Sat 10/118:45 pmICN - SEA

1 stop32h 14mWestJet

Deal found 3/31

$953

Thu 5/155:25 pmGEG - ICN

1 stop35h 05mMultiple Airlines

Thu 5/221:30 pmICN - GEG

2 stops43h 43mMultiple Airlines

Deal found 3/31

$962

Wed 9/31:30 amSEA - ICN

1 stop17h 30mEVA Air

Wed 10/1512:00 pmICN - SEA

1 stop23h 30mEVA Air

Deal found 3/31

$974

Thu 4/2411:00 amSEA - ICN

2 stops42h 30mHainan Airlines

Wed 5/710:35 pmICN - SEA

2 stops26h 25mHainan Airlines

Deal found 4/1

$982

Sun 11/212:10 amSEA - GMP

1 stop24h 50mEVA Air

Sat 11/151:50 pmGMP - SEA

1 stop20h 50mEVA Air

Deal found 3/31

$1,016

Mon 9/17:10 pmSEA - ICN

1 stop30h 30mTurkish Airlines

Mon 12/112:10 amICN - SEA

1 stop33h 55mTurkish Airlines

Deal found 4/1

$1,036

Wed 5/148:00 pmSEA - ICN

2 stops26h 05mCathay Pacific

Tue 5/203:10 pmICN - SEA

2 stops34h 45mCathay Pacific

Deal found 3/31

$1,060

Mon 9/12:45 pmPDX - ICN

2 stops31h 20mCathay Pacific

Tue 9/168:05 pmICN - PDX

2 stops31h 23mCathay Pacific

Deal found 3/31

$1,062

Best flights from Washington to South Korea
Discover carefully curated flight deals from Washington to South Korea that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 1, 2025.

Mon 4/219:40 amPDX - ICN

2 stops43h 35mMultiple Airlines

Mon 5/196:20 pmICN - PDX

1 stop35h 16mMultiple Airlines

Deal found 3/31

$879

Tue 9/21:40 amSEA - PUS

1 stop17h 35mChina Airlines

Tue 9/3012:15 pmPUS - SEA

1 stop23h 05mChina Airlines

Deal found 3/31

$919

Thu 4/2411:00 amSEA - ICN

2 stops42h 30mHainan Airlines

Wed 5/710:35 pmICN - SEA

2 stops26h 25mHainan Airlines

Deal found 3/31

$982

Wed 6/47:05 amSEA - ICN

1 stop19h 40mWestJet

Sun 6/228:45 pmICN - SEA

1 stop15h 43mWestJet

Deal found 3/31

$993

Tue 4/291:30 amSEA - ICN

1 stop25h 15mEVA Air

Fri 10/247:45 pmICN - SEA

1 stop15h 45mEVA Air

Deal found 4/1

$1,013

Wed 5/148:00 pmSEA - ICN

2 stops26h 05mCathay Pacific

Tue 5/203:10 pmICN - SEA

2 stops34h 45mCathay Pacific

Deal found 3/31

$1,060

Sun 4/611:35 pmSEA - ICN

1 stop27h 45mPhilippine Airlines

Thu 4/108:30 pmICN - SEA

1 stop38h 45mPhilippine Airlines

Deal found 3/31

$1,072

Wed 5/217:10 pmSEA - ICN

1 stop30h 30mTurkish Airlines

Wed 6/1810:20 amICN - SEA

1 stop40h 15mTurkish Airlines

Deal found 4/1

$1,080

Thu 4/105:45 amSEA - ICN

1 stop18h 20mAir Canada

Wed 9/245:45 pmICN - SEA

1 stop12h 31mAir Canada

Deal found 3/31

$1,098

Tue 9/97:00 amPDX - GMP

2 stops22h 50mJapan Airlines

Wed 9/1712:05 pmGMP - PDX

2 stops20h 45mJapan Airlines

Deal found 3/31

$1,172

Thu 4/104:30 pmSEA - GMP

1 stop34h 05mANA

Mon 4/2112:40 pmGMP - SEA

1 stop17h 45mANA

Deal found 3/31

$1,173

Sun 8/317:10 amPDX - ICN

1 stop17h 20mDelta

Thu 9/117:20 pmICN - PDX

1 stop20h 31mDelta

Deal found 3/30

$1,205

Last-minute flights from Washington to South Korea
Discover last-minute flight deals from Washington to South Korea. Data last updated April 1, 2025 and is based on user searches.

Sun 4/611:35 pmSEA - ICN

1 stop27h 45mPhilippine Airlines

Thu 4/108:30 pmICN - SEA

1 stop38h 45mPhilippine Airlines

Deal found 3/31

$1,072

Sun 4/67:23 amPDX - ICN

1 stop17h 07mDelta

Sun 4/137:20 pmICN - PDX

1 stop20h 36mDelta

Deal found 4/1

$1,205

Sun 4/611:59 pmPDX - ICN

1 stop23h 31mAmerican Airlines

Sun 4/135:25 pmICN - PDX

2 stops22h 37mAmerican Airlines

Deal found 3/31

$1,224

Mon 4/712:50 pmSEA - ICN

Nonstop11h 50mKorean Air

Mon 4/147:20 pmICN - SEA

Nonstop10h 10mKorean Air

Deal found 4/1

$1,256

Tue 4/81:10 amSEA - ICN

1 stop26h 25mChina Airlines

Thu 5/18:35 pmICN - SEA

1 stop14h 55mChina Airlines

Deal found 4/1

$960

Tue 4/83:05 pmSEA - ICN

2 stops35h 40mMultiple Airlines

Thu 4/1712:45 pmICN - SEA

2 stops23h 06mMultiple Airlines

Deal found 4/1

$1,004

Tue 4/85:59 pmSEA - ICN

2 stops28h 06mCathay Pacific

Wed 4/233:10 pmICN - SEA

2 stops34h 40mCathay Pacific

Deal found 4/1

$1,199

Tue 4/87:10 pmSEA - ICN

1 stop45h 30mTurkish Airlines

Tue 4/2210:25 amICN - SEA

1 stop46h 50mTurkish Airlines

Deal found 4/1

$1,215

Wed 4/99:45 pmSEA - ICN

2 stops53h 00mWestJet

Thu 5/18:45 pmICN - SEA

1 stop32h 13mWestJet

Deal found 3/31

$1,239

Thu 4/105:45 amSEA - ICN

1 stop18h 20mAir Canada

Wed 9/245:45 pmICN - SEA

1 stop12h 31mAir Canada

Deal found 3/31

$1,098

Thu 4/101:30 amSEA - ICN

1 stop25h 15mEVA Air

Thu 5/2212:00 pmICN - SEA

1 stop23h 30mEVA Air

Deal found 3/31

$1,172

Thu 4/104:30 pmSEA - GMP

1 stop34h 05mANA

Mon 4/2112:40 pmGMP - SEA

1 stop17h 45mANA

Deal found 3/31

$1,173

One-way flights from Washington to South Korea
Search for one-way flight options from Washington to South Korea. Find affordable one-way fares based on user searches. Data last updated April 1, 2025.

Mon 4/2810:07 amPDX - ICN

3 stops57h 08mMultiple Airlines

Deal found 3/31

$448

Sun 4/207:35 pmSEA - GMP

3 stops55h 50mMultiple Airlines

Deal found 3/31

$469

Tue 5/62:13 pmGEG - ICN

1 stop38h 17mMultiple Airlines

Deal found 3/31

$470

Sun 8/101:45 pmPDX - ICN

1 stop37h 00mWestJet

Deal found 3/30

$489

Tue 7/227:30 amPDX - GMP

2 stops37h 30mMultiple Airlines

Deal found 3/30

$492

Fri 5/94:59 pmSEA - PUS

2 stops55h 51mMultiple Airlines

Deal found 3/31

$515

Mon 4/71:10 amSEA - CJU

1 stop36h 55mMultiple Airlines

Deal found 3/31

$523

Wed 5/143:39 pmSEA - ICN

2 stops35h 06mWestJet

Deal found 3/31

$529

Sat 6/288:55 amSEA - ICN

2 stops19h 35mMultiple Airlines

Deal found 3/30

$530

Mon 4/71:10 amSEA - ICN

1 stop26h 25mChina Airlines

Deal found 3/31

$541

Sun 4/131:30 amSEA - GMP

1 stop24h 40mEVA Air

Deal found 3/31

$574

Tue 5/131:10 amSEA - PUS

1 stop25h 50mChina Airlines

Deal found 4/1

$589

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 4/21

9:40 am-9:15 pm

2 stops43h 35m

Incheon Intl

Wed 5/21

6:20 pm-4:46 pm

1 stop14h 26m

$879

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sat 9/13

1:50 pm-6:45 pm

1 stop36h 55m

Incheon Intl

Tue 10/14

5:45 pm-10:16 pm

1 stop20h 31m

$948

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sun 4/13

1:10 am-7:35 pm

1 stop26h 25m

Incheon Intl

Sun 5/18

12:35 pm-7:30 pm

1 stop22h 55m

$952

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sun 9/7

2:05 pm-6:45 pm

1 stop36h 40m

Incheon Intl

Sat 10/11

8:45 pm-12:59 pm

1 stop32h 14m

$953

SpokaneIncheon

GEG - ICN

GEGICN

Spokane

Thu 5/15

5:25 pm-8:30 pm

1 stop35h 05m

Incheon Intl

Thu 5/22

1:30 pm-5:13 pm

2 stops43h 43m

$962

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Wed 9/3

1:30 am-11:00 am

1 stop17h 30m

Incheon Intl

Wed 10/15

12:00 pm-7:30 pm

1 stop23h 30m

$974

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Thu 4/24

11:00 am-9:30 pm

2 stops42h 30m

Incheon Intl

Wed 5/7

10:35 pm-9:00 am

2 stops26h 25m

$982

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Mon 9/1

7:10 pm-5:40 pm

1 stop30h 30m

Incheon Intl

Mon 12/1

12:10 am-5:05 pm

1 stop33h 55m

$1,036

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Wed 5/14

8:00 pm-2:05 pm

2 stops26h 05m

Incheon Intl

Tue 5/20

3:10 pm-9:55 am

2 stops34h 45m

$1,060

PortlandIncheon

PDX - ICN

PDXICN

Portland

Mon 9/1

2:45 pm-2:05 pm

2 stops31h 20m

Incheon Intl

Tue 9/16

8:05 pm-11:28 am

2 stops31h 23m

$1,062

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 60 results

...

Best time to book a flight from Washington to South Korea

Have a flexible travel schedule? Discover the best time to fly to South Korea from Washington with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington to South Korea

What is the cheapest month to book a flight from State of Washington to South Korea?

Currently, February is the cheapest month in which you can book a flight from State of Washington to South Korea (average of $1,001). Flying from State of Washington to South Korea in June is currently the most expensive (average of $1,650). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WA to KR?

When flying from State of Washington to South Korea, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from State of Washington to South Korea

The most flights from USWA to KR0 are scheduled on a Monday (8 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in South Korea by month

In terms of precipitation, rainfall in South Korea ranges from 0.8 - 10.2 inches per month. July is typically the wettest month, when rainfall can reach 10.2 in. January is typically the driest time to visit South Korea when rainfall is around 0.8 in.

Temperature in South Korea by month

If weather is an important factor for your trip to South Korea, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

Reviews of airlines servicing South Korea

See what other customers who have flown with EVA Air, Korean Air and Japan Airlines from Washington to South Korea have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

EVA Air

8.4

Very good

1,170 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

EVA Air

8.4

Very good

1,170 reviews

EVA Air

8.4

Very good

1,170 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

Korean Air

8.4

Very good

1,052 reviews

EVA Air

8.4

Very good

1,170 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

Japan Airlines

8.3

Very good

1,440 reviews

EVA Air

8.4

Very good

1,170 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

ANA

8.3

Very good

830 reviews

EVA Air

8.4

Very good

1,170 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

China Airlines

8.2

Very good

724 reviews

EVA Air

8.4

Very good

1,170 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

Related info for your journey

How popular is this State of Washington to South Korea flight route?
The Washington to South Korea flight path was viewed by 200 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
What are the cheapest airlines to fly from State of Washington to South Korea one-way?
The cheapest airlines for a one-way flight from State of Washington to South Korea are WestJet ($489), China Airlines ($541), and EVA Air ($574).
Can I find deals for flights from Washington to South Korea that include hotel bookings?
Yes. In addition to deals on Washington to South Korea flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington to South Korea?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to South Korea.
Can I find deals for business class flights from Washington to South Korea?
Yes. Cheapflights offers flight deals from Washington to South Korea by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from State of Washington to South Korea?
Currently, February is the cheapest month in which you can book a flight from State of Washington to South Korea (average of $1,001). Flying from State of Washington to South Korea in June is currently the most expensive (average of $1,650). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top 9 airlines flying from Washington to South Korea

Airline	Cheapest	Average	Flexibility	On-time
Hawaiian Airlines	Cheapest$600	Average$881	FlexibilityNo cancel fee	On-time85%
United Airlines	Cheapest$660	Average$1,475	FlexibilityNo cancel fee	On-time69%
Air Canada	Cheapest$835	Average$963	FlexibilityNo cancel fee	On-time67%
China Airlines	Cheapest$862	Average$960	FlexibilityNo cancel fee	On-time70%
Delta	Cheapest$872	Average$1,402	FlexibilityNo cancel fee	On-timeN/A
Asiana Airlines	Cheapest$925	Average$1,267	FlexibilityNo cancel fee	On-time76%
Korean Air	Cheapest$966	Average$1,572	FlexibilityNo cancel fee	On-time81%
Turkish Airlines	Cheapest$970	Average$1,249	FlexibilityNo cancel fee	On-time77%
EVA Air	Cheapest$986	Average$1,089	FlexibilityNo cancel fee	On-time74%

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$448+ Cheap flights from Washington to South Korea

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/28. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Washington to South Korea

Keep the following information in mind while searching for Washington to South Korea flight deals. Data was last updated April 1, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Washington to South Korea

Cheapest flights from Washington to South KoreaExplore the most affordable flight options available from Washington to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 1, 2025.

Explore the most affordable flight options available from Washington to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 1, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Washington to South Korea

Have a flexible travel schedule? Discover the best time to fly to South Korea from Washington with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington to South Korea

What is the cheapest month to book a flight from State of Washington to South Korea?

What is the cheapest time of day to fly from WA to KR?

Find hourly flight availability from Washington to South Korea. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 1, 2025.

Weekly flight availability from State of Washington to South Korea

Rainfall in South Korea by month

Plan your trip to South Korea by taking into account the average rainfall totals by month.

Temperature in South Korea by month

Plan your trip to South Korea by taking into account the average temperature totals by month.

Reviews of airlines servicing South Korea

See what other customers who have flown with EVA Air, Korean Air and Japan Airlines from Washington to South Korea have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Washington to South Korea. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How popular is this State of Washington to South Korea flight route?

What are the cheapest airlines to fly from State of Washington to South Korea one-way?

Can I find deals for flights from Washington to South Korea that include hotel bookings?

How can I find direct flights from Washington to South Korea?

Can I find deals for business class flights from Washington to South Korea?

What is the cheapest month to book a flight from State of Washington to South Korea?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington to South Korea

See prices for flight routes from nearby airports that may be better suited for you.

Top 9 airlines flying from Washington to South Korea

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Cheapest flights from Washington to South Korea
Explore the most affordable flight options available from Washington to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 1, 2025.