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 ($536), China Airlines ($556), and EVA Air ($584).

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 35 days in advance to save up to 28% 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 35 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 $1,027, 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 $1,248 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 34% 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.

$935+ Flights from Washington to South Korea

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Cheap flight deals from Washington to South Korea

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$958 (Kiwi.com)
One-way from	$431 (Kiwi.com)
Popular in	June
Cheapest in	February
Average price	$1,105
Good round-trip deal	$797 or less
Good one-way deal	$492 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. 19% potential increase in price ($297 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($39 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.

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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 17, 2025.

Thu 11/2012:10 amSEA - ICN

1 stop18h 10mChina Airlines

Sun 11/3012:25 pmICN - SEA

1 stop22h 50mChina Airlines

Deal found 4/16

$890

Thu 5/19:52 pmPDX - ICN

1 stop30h 38mMultiple Airlines

Wed 5/2810:35 amICN - PDX

2 stops18h 50mMultiple Airlines

Deal found 4/16

$960

Fri 8/291:15 pmSEA - ICN

2 stops37h 30mWestJet

Sun 9/149:40 pmICN - SEA

2 stops32h 29mWestJet

Deal found 4/16

$962

Sat 8/97:35 pmSEA - ICN

1 stop31h 10mMultiple Airlines

Sat 9/2012:35 pmICN - SEA

1 stop22h 45mMultiple Airlines

Deal found 4/17

$964

Tue 5/132:13 pmGEG - ICN

1 stop38h 17mMultiple Airlines

Tue 5/207:15 amICN - GEG

2 stops49h 30mMultiple Airlines

Deal found 4/15

$970

Sun 9/281:30 amSEA - ICN

1 stop17h 30mEVA Air

Mon 10/1312:00 pmICN - SEA

1 stop23h 30mEVA Air

Deal found 4/17

$976

Thu 4/2411:00 amSEA - ICN

2 stops42h 30mHainan Airlines

Wed 5/710:35 pmICN - SEA

2 stops26h 25mHainan Airlines

Deal found 4/16

$981

Tue 8/265:55 pmPDX - ICN

2 stops26h 45mCathay Pacific

Wed 9/38:05 pmICN - PDX

2 stops29h 42mCathay Pacific

Deal found 4/16

$989

Tue 9/303:45 pmPDX - ICN

2 stops35h 50mChina Airlines

Tue 10/148:35 pmICN - PDX

2 stops25h 43mChina Airlines

Deal found 4/16

$993

Sun 5/118:13 amSEA - PUS

2 stops37h 02mMultiple Airlines

Wed 5/147:50 amPUS - SEA

1 stop19h 40mMultiple Airlines

Deal found 4/17

$997

Wed 10/17:15 amGEG - ICN

1 stop15h 45mUnited Airlines

Wed 10/154:50 pmICN - GEG

1 stop22h 25mUnited Airlines

Deal found 4/16

$1,010

Sun 9/147:57 pmPSC - ICN

2 stops23h 18mMultiple Airlines

Mon 9/228:35 pmICN - PSC

2 stops31h 53mMultiple Airlines

Deal found 4/16

$1,017

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 17, 2025.

Sun 4/201:10 amSEA - ICN

1 stop20h 55mMultiple Airlines

Wed 5/146:20 pmICN - SEA

1 stop16h 39mMultiple Airlines

Deal found 4/17

$958

Sun 4/201:10 amSEA - ICN

1 stop26h 25mChina Airlines

Wed 6/48:35 pmICN - SEA

1 stop15h 20mChina Airlines

Deal found 4/16

$971

Thu 4/2411:00 amSEA - ICN

2 stops42h 30mHainan Airlines

Wed 5/710:35 pmICN - SEA

2 stops26h 25mHainan Airlines

Deal found 4/16

$981

Sun 4/201:30 amSEA - ICN

1 stop17h 30mEVA Air

Mon 6/212:00 pmICN - SEA

1 stop22h 50mEVA Air

Deal found 4/16

$982

Thu 5/156:59 pmSEA - ICN

2 stops25h 41mCathay Pacific

Mon 5/268:05 pmICN - SEA

2 stops29h 04mCathay Pacific

Deal found 4/17

$1,035

Thu 5/297:10 amSEA - ICN

2 stops19h 35mWestJet

Thu 6/128:45 pmICN - SEA

2 stops31h 46mWestJet

Deal found 4/17

$1,037

Fri 4/2511:35 pmSEA - ICN

1 stop27h 45mPhilippine Airlines

Wed 5/78:00 amICN - SEA

1 stop27h 15mPhilippine Airlines

Deal found 4/17

$1,040

Wed 4/237:10 pmSEA - ICN

1 stop45h 30mTurkish Airlines

Wed 5/1411:20 pmICN - SEA

1 stop33h 55mTurkish Airlines

Deal found 4/17

$1,047

Sun 9/145:20 amPSC - ICN

1 stop19h 10mDelta

Mon 9/227:20 pmICN - PSC

1 stop12h 58mDelta

Deal found 4/16

$1,056

Sun 9/145:25 amPSC - ICN

2 stops30h 55mUnited Airlines

Mon 9/2211:30 amICN - PSC

1 stop16h 12mUnited Airlines

Deal found 4/16

$1,113

Sun 5/186:11 amPDX - GMP

2 stops36h 49mChina Eastern

Sun 5/258:50 pmGMP - PDX

2 stops35h 18mChina Eastern

Deal found 4/17

$1,120

Tue 4/2910:10 amPDX - ICN

1 stop13h 55mAir Canada

Thu 5/295:45 pmICN - PDX

1 stop12h 55mAir Canada

Deal found 4/16

$1,126

Last-minute flights from Washington to South Korea
Discover last-minute flight deals from Washington to South Korea. Data last updated April 17, 2025 and is based on user searches.

Sun 4/201:10 amSEA - ICN

1 stop26h 25mChina Airlines

Wed 6/48:35 pmICN - SEA

1 stop15h 20mChina Airlines

Deal found 4/16

$971

Sun 4/201:30 amSEA - ICN

1 stop17h 30mEVA Air

Mon 6/212:00 pmICN - SEA

1 stop22h 50mEVA Air

Deal found 4/16

$982

Tue 4/221:10 amSEA - ICN

1 stop26h 25mMultiple Airlines

Wed 5/1410:35 pmICN - SEA

2 stops26h 25mMultiple Airlines

Deal found 4/17

$990

Tue 4/2212:30 amSEA - ICN

1 stop18h 30mEVA Air

Thu 5/157:45 pmICN - SEA

1 stop15h 45mEVA Air

Deal found 4/17

$1,073

Tue 4/224:30 pmSEA - GMP

1 stop26h 35mANA

Tue 6/312:40 pmGMP - SEA

1 stop17h 45mANA

Deal found 4/16

$1,203

Wed 4/237:10 pmSEA - ICN

1 stop45h 30mTurkish Airlines

Wed 5/1411:20 pmICN - SEA

1 stop33h 55mTurkish Airlines

Deal found 4/17

$1,047

Thu 4/2411:00 amSEA - ICN

2 stops42h 30mHainan Airlines

Wed 5/710:35 pmICN - SEA

2 stops26h 25mHainan Airlines

Deal found 4/17

$981

Thu 4/241:10 amSEA - ICN

1 stop18h 05mChina Airlines

Tue 5/1312:35 pmICN - SEA

1 stop22h 55mChina Airlines

Deal found 4/17

$984

Thu 4/246:00 amPDX - ICN

2 stops47h 10mCathay Pacific

Thu 5/88:05 pmICN - PDX

2 stops43h 54mCathay Pacific

Deal found 4/17

$1,135

Thu 4/2411:00 amSEA - ICN

2 stops42h 30mHainan Airlines

Wed 5/710:35 pmICN - SEA

2 stops26h 25mHainan Airlines

Deal found 4/16

$981

Fri 4/2511:35 pmSEA - ICN

1 stop27h 45mPhilippine Airlines

Wed 5/78:00 amICN - SEA

1 stop27h 15mPhilippine Airlines

Deal found 4/17

$1,040

Sun 4/277:01 pmPDX - ICN

2 stops33h 29mMultiple Airlines

Wed 5/286:20 pmICN - PDX

1 stop14h 26mMultiple Airlines

Deal found 4/16

$975

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 17, 2025.

Wed 5/217:00 amPDX - ICN

1 stop21h 30mMultiple Airlines

Deal found 4/17

$431

Sun 5/119:31 pmSEA - GMP

3 stops55h 19mMultiple Airlines

Deal found 4/16

$507

Sat 5/171:45 pmPDX - ICN

1 stop37h 00mWestJet

Deal found 4/16

$536

Mon 5/199:30 amGEG - ICN

3 stops44h 15mMultiple Airlines

Deal found 4/17

$548

Thu 4/241:10 amSEA - ICN

1 stop30h 20mMultiple Airlines

Deal found 4/16

$550

Tue 4/221:10 amSEA - ICN

1 stop26h 25mChina Airlines

Deal found 4/15

$556

Thu 5/157:00 amSEA - CJU

3 stops44h 00mMultiple Airlines

Deal found 4/17

$558

Fri 6/203:39 pmSEA - ICN

3 stops35h 06mWestJet

Deal found 4/16

$584

Wed 8/202:10 amSEA - GMP

1 stop18h 40mEVA Air

Deal found 4/16

$584

Thu 4/2411:00 amSEA - ICN

2 stops42h 30mHainan Airlines

Deal found 4/16

$586

Tue 4/227:40 amPDX - ICN

2 stops45h 30mCathay Pacific

Deal found 4/16

$588

Wed 4/2310:10 amPDX - ICN

1 stop13h 55mAir Canada

Deal found 4/17

$596

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

Thu 5/1

9:52 pm-8:30 pm

1 stop30h 38m

Incheon Intl

Wed 5/28

10:35 am-1:25 pm

2 stops18h 50m

$960

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Fri 8/29

1:15 pm-6:45 pm

2 stops37h 30m

Incheon Intl

Sun 9/14

9:40 pm-2:09 pm

2 stops32h 29m

$962

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sat 8/9

7:35 pm-6:45 pm

1 stop31h 10m

Incheon Intl

Sat 9/20

12:35 pm-7:20 pm

1 stop22h 45m

$964

SpokaneIncheon

GEG - ICN

GEGICN

Spokane

Tue 5/13

2:13 pm-8:30 pm

1 stop38h 17m

Incheon Intl

Tue 5/20

7:15 am-4:45 pm

2 stops49h 30m

$970

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sun 8/24

1:40 am-7:35 pm

1 stop25h 55m

Incheon Intl

Mon 9/22

8:35 pm-8:09 am

2 stops27h 34m

$971

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sun 9/28

1:30 am-11:00 am

1 stop17h 30m

Incheon Intl

Mon 10/13

12:00 pm-7:30 pm

1 stop23h 30m

$976

SeattleBusan

SEA - PUS

SEAPUS

Seattle/Tacoma Intl

Sun 5/11

8:13 am-1:15 pm

2 stops37h 02m

Busan Gimhae

Wed 5/14

7:50 am-11:30 am

1 stop19h 40m

$997

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Thu 8/21

12:30 pm-8:40 am

1 stop28h 10m

Incheon Intl

Fri 8/29

11:20 pm-5:15 pm

1 stop33h 55m

$1,038

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Mon 4/28

1:30 am-7:15 pm

1 stop25h 45m

Seoul Gimpo Intl

Tue 5/20

7:15 pm-11:35 am

2 stops32h 20m

$1,042

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Wed 5/7

7:59 pm-2:05 pm

2 stops26h 06m

Incheon Intl

Sun 5/11

8:05 pm-9:50 am

2 stops29h 45m

$1,050

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

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 Sunday, which is when the least amount of flights are scheduled (5 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

1,177 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

1,177 reviews

EVA Air

8.4

Very good

1,177 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

1,064 reviews

EVA Air

8.4

Very good

1,177 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

1,177 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

844 reviews

EVA Air

8.4

Very good

1,177 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

729 reviews

EVA Air

8.4

Very good

1,177 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 ($536), China Airlines ($556), and EVA Air ($584).
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$1,134	FlexibilityNo cancel fee	On-time85%
United Airlines	Cheapest$657	Average$1,379	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$813	Average$1,361	FlexibilityNo cancel fee	On-timeN/A
Air Canada	Cheapest$824	Average$946	FlexibilityNo cancel fee	On-time67%
China Airlines	Cheapest$862	Average$961	FlexibilityNo cancel fee	On-time70%
Asiana Airlines	Cheapest$922	Average$1,251	FlexibilityNo cancel fee	On-time76%
Korean Air	Cheapest$966	Average$1,571	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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$431+ 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 5/21. 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 17, 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 17, 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 17, 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 17, 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 17, 2025.