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$383+ Cheap flights from Seattle (SEA) 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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ICN
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Seattle to South Korea

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to South Korea (KR0). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$775
(Gurufare)

One-way from

$386
(Kiwi.com)
From Seattle/Tacoma Intl to South Korea
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One-way flight from Seattle/Tacoma Intl to South Korea
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Find flight deals from Seattle to South Korea

Cheapest flights from Seattle to South Korea
Explore the most affordable flight options available from Seattle to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This Gurufare deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/207:10 amSEA - PUS
2 stops36h 25mChina Eastern
Sat 5/175:50 pmPUS - SEA
2 stops39h 10mChina Eastern
Deal found 1/20$775
This Ovago deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/47:10 amSEA - CJU
2 stops36h 40mChina Eastern
Tue 3/116:55 pmCJU - SEA
2 stops38h 00mChina Eastern
Deal found 1/19$875
This Mytrip deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/35:38 pmSEA - ICN
2 stops29h 57mMultiple Airlines
Mon 3/105:50 pmICN - SEA
3 stops33h 56mMultiple Airlines
Deal found 1/20$908
This Asiana Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/612:45 pmSEA - ICN
Nonstop12h 05mAsiana Airlines
Thu 3/136:15 pmICN - SEA
Nonstop9h 40mAsiana Airlines
Deal found 1/19$912
This oojo deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/512:45 pmSEA - PUS
2 stops30h 50mAsiana Airlines
Wed 3/1211:25 amPUS - SEA
2 stops40h 30mAsiana Airlines
Deal found 1/20$922
This Hawaiian Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/217:00 amSEA - ICN
1 stop19h 25mHawaiian Airlines
Mon 3/39:25 pmICN - SEA
1 stop16h 55mHawaiian Airlines
Deal found 1/20$937
This Justfly.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/97:05 pmSEA - ICN
1 stop29h 00mAir Canada
Thu 5/15:45 pmICN - SEA
1 stop12h 28mAir Canada
Deal found 1/20$938
This oojo deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/231:10 amSEA - ICN
1 stop18h 10mChina Airlines
Thu 4/108:35 pmICN - SEA
1 stop14h 55mChina Airlines
Deal found 1/20$940
This Alaska Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/217:00 amSEA - ICN
1 stop19h 25mAlaska Airlines
Sun 3/29:25 pmICN - SEA
1 stop25h 55mAlaska Airlines
Deal found 1/20$987
This oojo deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/231:10 amSEA - ICN
1 stop17h 20mEVA Air
Wed 4/912:00 pmICN - SEA
1 stop23h 30mEVA Air
Deal found 1/20$998
This oojo deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/108:00 pmSEA - ICN
1 stop45h 35mTurkish Airlines
Wed 3/269:35 amICN - SEA
1 stop48h 30mTurkish Airlines
Deal found 1/20$1,007
This oojo deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/191:10 amSEA - PUS
1 stop18h 05mChina Airlines
Sat 5/1712:15 pmPUS - SEA
1 stop23h 15mChina Airlines
Deal found 1/20$1,010

Find flights from Seattle to South Korea within your budget

Customize your flight search to find flights from Seattle to South Korea that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleBusan

SEA - PUS

SEAPUS

Seattle/Tacoma Intl

Sun 4/20

7:10 am-11:35 am

2 stops36h 25m

Busan Gimhae

Sat 5/17

5:50 pm-5:00 pm

2 stops39h 10m

$775

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 3/4

7:10 am-12:50 pm

2 stops36h 40m

Jeju City

Tue 3/11

6:55 pm-4:55 pm

2 stops38h 00m

$875

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Mon 3/3

5:38 pm-4:35 pm

2 stops29h 57m

Incheon Intl

Mon 3/10

5:50 pm-11:46 am

3 stops33h 56m

$908

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Thu 3/6

12:45 pm-5:50 pm

Nonstop12h 05m

Incheon Intl

Thu 3/13

6:15 pm-11:55 am

Nonstop9h 40m

$912

SeattleBusan

SEA - PUS

SEAPUS

Seattle/Tacoma Intl

Wed 3/5

12:45 pm-12:35 pm

2 stops30h 50m

Busan Gimhae

Wed 3/12

11:25 am-11:55 am

2 stops40h 30m

$922

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Fri 2/21

7:00 am-7:25 pm

1 stop19h 25m

Incheon Intl

Mon 3/3

9:25 pm-9:20 pm

1 stop16h 55m

$937

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Wed 4/9

7:05 pm-4:05 pm

1 stop29h 00m

Incheon Intl

Thu 5/1

5:45 pm-2:13 pm

1 stop12h 28m

$938

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sun 3/23

1:10 am-11:20 am

1 stop18h 10m

Incheon Intl

Thu 4/10

8:35 pm-7:30 pm

1 stop14h 55m

$940

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Mon 4/14

1:30 am-6:45 pm

1 stop25h 15m

Incheon Intl

Wed 4/30

12:00 pm-7:30 pm

1 stop23h 30m

$973

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Fri 2/21

7:00 am-7:25 pm

1 stop19h 25m

Incheon Intl

Sun 3/2

9:25 pm-6:20 am

1 stop25h 55m

$987

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 46 results
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Best time to book a flight from Seattle to South Korea

Have a flexible travel schedule? Discover the best time to fly to South Korea from Seattle 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.

Travel insights for flights from Seattle to South Korea

Get recent, data-driven insights about flights from Seattle to South Korea including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Seattle to South Korea?

Currently, October is the cheapest month in which you can book a flight from Seattle to South Korea (average of $1,086). Flying from Seattle to South Korea in June is currently the most expensive (average of $1,723). 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 SEA to KR?

Find hourly flight availability from Seattle 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 January 21, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to South Korea as you normally would.

Weekly flight availability from Seattle to South Korea

Explore weekly flight availability from Seattle to South Korea. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 21, 2025.

The most flights from SEA to KR0 are scheduled on a Monday (9 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (9 on average).

Rainfall in South Korea by month

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

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

Get insights into the airlines that provide service to South Korea. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to South Korea. Reviews last updated January 21, 2025.
To help decide which airline to fly from Seattle to South Korea, see what other customers have to say about Asiana Airlines, Air Canada and China Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.5
Very good
1,039 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Overall

8.5

Boarding

8.5

Crew

8.7

Reviews

1 / 10

It was a great experience in all aspects including passengers are respectful to each other. I will consider to use Korean Air again.

Korean Air
8.5
Very good
1,039 reviews
Korean Air
8.5
Very good
1,039 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Overall

8.5

Boarding

8.5

Crew

8.7

Reviews

1 / 10

It was a great experience in all aspects including passengers are respectful to each other. I will consider to use Korean Air again.

EVA Air
8.4
Very good
1,255 reviews
Korean Air
8.5
Very good
1,039 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Overall

8.5

Boarding

8.5

Crew

8.7

Reviews

1 / 10

It was a great experience in all aspects including passengers are respectful to each other. I will consider to use Korean Air again.

ANA
8.4
Very good
852 reviews
Korean Air
8.5
Very good
1,039 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Overall

8.5

Boarding

8.5

Crew

8.7

Reviews

1 / 10

It was a great experience in all aspects including passengers are respectful to each other. I will consider to use Korean Air again.

Japan Airlines
8.3
Very good
1,449 reviews
Korean Air
8.5
Very good
1,039 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Overall

8.5

Boarding

8.5

Crew

8.7

Reviews

1 / 10

It was a great experience in all aspects including passengers are respectful to each other. I will consider to use Korean Air again.

China Airlines
8.2
Very good
737 reviews
Korean Air
8.5
Very good
1,039 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Overall

8.5

Boarding

8.5

Crew

8.7

Reviews

1 / 10

It was a great experience in all aspects including passengers are respectful to each other. I will consider to use Korean Air again.

Related info for your journey

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

  • What airport do you fly from for flights from Seattle to South Korea?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl (SEA) is the airport most travelers will use when flying to South Korea from Seattle.

  • How popular is this Seattle to South Korea flight route?

    This flight path from Seattle/Tacoma Intl to South Korea 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 Seattle to South Korea one-way?

    $472 is the cheapest one-way deal found within the past few days, from Asiana Airlines. You may also be able to find cheap deals on Hawaiian Airlines and Alaska Airlines, with prices starting from $487 and $490, respectively.

  • What are the most popular routes from Seattle to South Korea?

    Most travelers choose Seattle/Tacoma Intl - Incheon Intl, Seattle/Tacoma Intl - Seoul Gimpo Intl or Seattle/Tacoma Intl - Jeju City when deciding on the best route from Seattle to South Korea.

  • What are the most reliable airlines from Seattle to South Korea?

    The top 3 most reliable airlines when flying from Seattle to South Korea are Delta (70%), Korean Air (57%) and Etihad Airways (55%).

  • What are the cheapest flights from Seattle to South Korea?

    The cheapest flight price from Seattle to South Korea is $367. On average you can expect to pay $1,529. The most popular route, (Seattle/Tacoma Intl - Incheon Intl), can usually be booked for $757.

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

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

  • How can I find direct flights from Seattle to South Korea?

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

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

    Yes. Cheapflights offers flight deals from Seattle 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 Seattle to South Korea?

    Currently, October is the cheapest month in which you can book a flight from Seattle to South Korea (average of $1,086). Flying from Seattle to South Korea in June is currently the most expensive (average of $1,723). 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.

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Top 9 airlines flying from Seattle to South Korea

Discover the top 9 airlines that operate flights from Seattle to South Korea. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$600Average$813FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$769Average$1,477FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$849Average$1,022FlexibilityNo cancel feeOn-time67%
China AirlinesCheapest$856Average$950FlexibilityNo cancel feeOn-time70%
Asiana AirlinesCheapest$948Average$1,292FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$970Average$1,204FlexibilityNo cancel feeOn-time77%
DeltaCheapest$985Average$1,478FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$986Average$1,627FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$1,011Average$1,130FlexibilityNo cancel feeOn-time74%
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