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$361+ 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 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ICN
Dec 24 — Dec 311
Tue 12/24
Tue 12/31
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 December 19, 2024.

Round-trip from

$920
(WhyPayMore)

One-way from

$361
(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 December 19, 2024.

This Gotogate deal was found by Cheapflights users on 12/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/3011:00 amSEA - ICN
Nonstop11h 55mKorean Air
Mon 1/274:10 pmICN - SEA
Nonstop9h 50mKorean Air
Deal found 12/19$937
This Justfly.com deal was found by Cheapflights users on 12/18. 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.
Mon 12/307:15 pmSEA - ICN
1 stop27h 00mAir Canada
Wed 1/294:55 pmICN - SEA
1 stop14h 35mAir Canada
Deal found 12/18$938
This Delta deal was found by Cheapflights users on 12/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/3010:40 amSEA - ICN
Nonstop12h 35mDelta
Wed 1/298:05 pmICN - SEA
Nonstop10h 14mDelta
Deal found 12/18$988
This Justfly.com deal was found by Cheapflights users on 12/18. 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.
Mon 12/303:40 pmSEA - GMP
1 stop33h 55mANA
Wed 1/2912:25 pmGMP - SEA
2 stops23h 05mANA
Deal found 12/18$1,005
This Kiwi.com deal was found by Cheapflights users on 12/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/3010:40 amSEA - ICN
Nonstop12h 35mMultiple Airlines
Mon 1/271:05 pmICN - SEA
2 stops40h 32mMultiple Airlines
Deal found 12/19$1,030
This Trip.com deal was found by Cheapflights users on 12/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/307:00 pmSEA - ICN
1 stop45h 35mTurkish Airlines
Tue 1/2812:10 amICN - SEA
1 stop33h 55mTurkish Airlines
Deal found 12/18$1,202
This American Airlines deal was found by Cheapflights users on 12/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2912:55 amSEA - ICN
1 stop22h 50mAmerican Airlines
Wed 1/296:50 pmICN - SEA
1 stop19h 31mAmerican Airlines
Deal found 12/18$1,204
This oojo deal was found by Cheapflights users on 12/18. 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 12/3012:10 amSEA - ICN
1 stop18h 10mChina Airlines
Tue 1/2112:25 pmICN - SEA
1 stop22h 50mChina Airlines
Deal found 12/18$1,326
This Gotogate deal was found by Cheapflights users on 12/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/3012:10 amSEA - ICN
1 stop17h 20mEVA Air
Thu 1/2311:40 amICN - SEA
1 stop23h 30mEVA Air
Deal found 12/19$1,439
This United Airlines deal was found by Cheapflights users on 12/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/293:22 pmSEA - ICN
2 stops31h 53mUnited Airlines
Thu 1/912:45 pmICN - SEA
2 stops26h 45mUnited Airlines
Deal found 12/18$1,479
This Gurufare deal was found by Cheapflights users on 12/18. 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.
Mon 12/3012:10 amSEA - GMP
1 stop26h 05mMultiple Airlines
Tue 1/217:50 amGMP - SEA
1 stop19h 05mMultiple Airlines
Deal found 12/18$1,534
This oojo deal was found by Cheapflights users on 12/18. 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.
Tue 12/315:54 pmSEA - ICN
2 stops27h 01mCathay Pacific
Mon 1/67:35 pmICN - SEA
2 stops35h 51mCathay Pacific
Deal found 12/18$1,661

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 December 19, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleBusan

SEA - PUS

SEAPUS

Seattle/Tacoma Intl

Sat 5/31

7:10 am-4:50 pm

2 stops41h 40m

Busan Gimhae

Sat 6/7

5:50 pm-10:23 pm

2 stops44h 33m

$858

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Mon 2/10

6:10 am-5:40 pm

1 stop18h 30m

Incheon Intl

Mon 2/17

8:05 pm-1:30 pm

Nonstop10h 25m

$920

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sat 1/11

7:05 pm-5:55 am

2 stops41h 50m

Incheon Intl

Wed 1/29

4:55 pm-2:30 pm

1 stop14h 35m

$924

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Tue 3/11

1:10 am-11:20 am

1 stop18h 10m

Incheon Intl

Mon 3/24

12:25 pm-7:15 pm

1 stop22h 50m

$930

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sat 2/1

2:19 pm-4:45 pm

1 stop33h 26m

Incheon Intl

Sat 2/8

6:50 pm-11:31 pm

1 stop21h 41m

$933

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Mon 12/30

7:15 pm-3:15 pm

1 stop27h 00m

Incheon Intl

Wed 1/29

4:55 pm-2:30 pm

1 stop14h 35m

$938

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Thu 3/13

1:45 pm-5:50 pm

Nonstop12h 05m

Incheon Intl

Thu 3/27

6:15 pm-11:55 am

Nonstop9h 40m

$946

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Wed 1/22

3:45 pm-6:35 pm

1 stop33h 50m

Seoul Gimpo Intl

Thu 1/30

7:45 am-6:30 pm

2 stops27h 45m

$958

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Tue 4/29

1:30 am-6:45 pm

1 stop25h 15m

Incheon Intl

Tue 5/20

12:00 pm-7:30 pm

1 stop23h 30m

$985

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Wed 1/22

10:41 am-4:15 pm

Nonstop12h 34m

Incheon Intl

Thu 1/30

8:05 pm-1:19 pm

Nonstop10h 14m

$988

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 41 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 $1,729). 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 December 19, 2024.

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 December 19, 2024.

The most flights from SEA to KR0 are scheduled on a Monday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 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 December 19, 2024.
To help decide which airline to fly from Seattle to South Korea, see what other customers have to say about Korean Air, China Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,272 reviews

Entertainment

8.0

Overall

8.4

Boarding

8.4

Food

8.0

Crew

8.6

Comfort

8.2

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

EVA Air
8.4
Very good
1,272 reviews
EVA Air
8.4
Very good
1,272 reviews

Entertainment

8.0

Overall

8.4

Boarding

8.4

Food

8.0

Crew

8.6

Comfort

8.2

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

Korean Air
8.4
Very good
1,021 reviews
EVA Air
8.4
Very good
1,272 reviews

Entertainment

8.0

Overall

8.4

Boarding

8.4

Food

8.0

Crew

8.6

Comfort

8.2

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

ANA
8.4
Very good
839 reviews
EVA Air
8.4
Very good
1,272 reviews

Entertainment

8.0

Overall

8.4

Boarding

8.4

Food

8.0

Crew

8.6

Comfort

8.2

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

Japan Airlines
8.3
Very good
1,442 reviews
EVA Air
8.4
Very good
1,272 reviews

Entertainment

8.0

Overall

8.4

Boarding

8.4

Food

8.0

Crew

8.6

Comfort

8.2

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

Asiana Airlines
8.3
Very good
477 reviews
EVA Air
8.4
Very good
1,272 reviews

Entertainment

8.0

Overall

8.4

Boarding

8.4

Food

8.0

Crew

8.6

Comfort

8.2

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

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 222 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 American Airlines and Korean Air, with prices starting from $478 and $553, 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 Korean Air (68%), Delta (64%) and Etihad Airways (45%).

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

    The cheapest flight price from Seattle to South Korea is $369. On average you can expect to pay $2,098. The most popular route, (Seattle/Tacoma Intl - Incheon Intl), can usually be booked for $764.

  • 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 $1,729). 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

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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 December 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$600Average$813FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$769Average$1,478FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$849Average$1,019FlexibilityNo cancel feeOn-time67%
China AirlinesCheapest$856Average$949FlexibilityNo cancel feeOn-time70%
Asiana AirlinesCheapest$970Average$1,294FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$970Average$1,192FlexibilityNo cancel feeOn-time77%
DeltaCheapest$979Average$1,479FlexibilityNo cancel feeOn-timeN/A
EVA AirCheapest$1,011Average$1,235FlexibilityNo cancel feeOn-time74%
Korean AirCheapest$1,035Average$1,623FlexibilityNo cancel feeOn-time81%
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