HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
South Korea

$404+ 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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ICN
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to South Korea with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 November 20, 2024.

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 November 20, 2024.

This Mytrip deal was found by Cheapflights users on 11/20. 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.
Sat 12/75:15 amSEA - ICN
2 stops24h 35mMultiple Airlines
Wed 12/117:25 amICN - SEA
3 stops33h 45mMultiple Airlines
Deal found 11/20$900
This United Airlines deal was found by Cheapflights users on 11/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/201:55 pmSEA - ICN
1 stop22h 45mUnited Airlines
Wed 11/276:00 pmICN - SEA
1 stop22h 44mUnited Airlines
Deal found 11/19$903
This Air Canada deal was found by Cheapflights users on 11/19. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/237:15 pmSEA - ICN
1 stop28h 30mAir Canada
Thu 12/126:20 pmICN - SEA
1 stop13h 05mAir Canada
Deal found 11/19$909
This American Airlines deal was found by Cheapflights users on 11/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/201:16 amSEA - ICN
1 stop22h 29mAmerican Airlines
Thu 2/206:50 pmICN - SEA
1 stop23h 07mAmerican Airlines
Deal found 11/20$916
This WhyPayMore deal was found by Cheapflights users on 11/20. 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2711:00 amSEA - ICN
Nonstop11h 55mKorean Air
Wed 12/48:05 pmICN - SEA
Nonstop10h 08mKorean Air
Deal found 11/20$921
This Jettzy deal was found by Cheapflights users on 11/19. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/312:45 pmSEA - ICN
Nonstop12h 05mAsiana Airlines
Tue 12/176:15 pmICN - SEA
Nonstop9h 40mAsiana Airlines
Deal found 11/19$938
This Gotogate deal was found by Cheapflights users on 11/19. 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.
Tue 12/310:35 amSEA - GMP
2 stops18h 55mANA
Tue 12/1712:25 pmGMP - SEA
2 stops23h 00mANA
Deal found 11/19$982
This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2910:35 amSEA - ICN
Nonstop12h 40mDelta
Tue 12/108:05 pmICN - SEA
Nonstop10h 08mDelta
Deal found 11/19$1,026
This oojo deal was found by Cheapflights users on 11/20. 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.
Tue 12/37:00 pmSEA - ICN
1 stop45h 05mTurkish Airlines
Mon 12/912:10 amICN - SEA
1 stop33h 55mTurkish Airlines
Deal found 11/20$1,027
This WhyPayMore deal was found by Cheapflights users on 11/20. 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2612:10 amSEA - ICN
1 stop17h 20mEVA Air
Wed 12/47:45 pmICN - SEA
1 stop15h 25mEVA Air
Deal found 11/20$1,066
This Gotogate deal was found by Cheapflights users on 11/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2412:10 amSEA - ICN
1 stop26h 05mChina Airlines
Sun 12/812:25 pmICN - SEA
1 stop22h 50mChina Airlines
Deal found 11/20$1,084
This ANA deal was found by Cheapflights users on 11/20. 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 ANA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/303:40 pmSEA - GMP
1 stop26h 40mMultiple Airlines
Tue 12/1012:25 pmGMP - SEA
2 stops25h 44mMultiple Airlines
Deal found 11/20$1,085

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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Wed 2/12

5:45 am-3:15 pm

1 stop16h 30m

Incheon Intl

Fri 2/28

4:55 pm-2:30 pm

1 stop14h 35m

$864

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Tue 1/14

5:55 pm-12:20 pm

2 stops25h 25m

Incheon Intl

Fri 1/31

8:10 am-5:00 pm

2 stops25h 50m

$896

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Wed 1/8

3:25 pm-5:40 am

1 stop21h 15m

Incheon Intl

Fri 1/31

6:00 pm-7:08 pm

1 stop18h 08m

$902

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sat 3/1

12:43 am-4:45 pm

1 stop23h 02m

Incheon Intl

Tue 3/11

5:50 pm-9:19 pm

1 stop19h 29m

$916

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Wed 2/12

12:45 pm-5:50 pm

Nonstop12h 05m

Incheon Intl

Sat 2/22

6:15 pm-10:55 am

Nonstop9h 40m

$926

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Wed 2/5

11:00 am-3:55 pm

Nonstop11h 55m

Incheon Intl

Wed 2/12

4:10 pm-9:00 am

Nonstop9h 50m

$942

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Mon 3/17

1:10 am-11:20 am

1 stop18h 10m

Incheon Intl

Tue 4/8

12:35 pm-7:30 pm

1 stop22h 55m

$964

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sun 3/2

7:00 pm-9:05 am

1 stop45h 05m

Incheon Intl

Mon 3/10

12:10 am-6:05 pm

1 stop33h 55m

$968

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Mon 4/7

4:40 pm-11:05 am

1 stop26h 25m

Seoul Gimpo Intl

Wed 5/7

12:40 pm-6:27 pm

2 stops21h 47m

$977

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Mon 1/6

10:45 am-4:15 pm

Nonstop12h 30m

Incheon Intl

Mon 1/27

8:05 pm-1:30 pm

Nonstop10h 25m

$989

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 44 results
1
2
3
...
5

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 $1,102). Flying from Seattle to South Korea in June is currently the most expensive (average of $1,708). 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 November 20, 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 November 20, 2024.

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 November 20, 2024.
To help decide which airline to fly from Seattle to South Korea, see what other customers have to say about Air Canada, United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.5
Very good
1,024 reviews

Entertainment

8.2

Comfort

8.3

Overall

8.5

Food

8.1

Boarding

8.5

Crew

8.7

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

Korean Air
8.5
Very good
1,024 reviews
Korean Air
8.5
Very good
1,024 reviews

Entertainment

8.2

Comfort

8.3

Overall

8.5

Food

8.1

Boarding

8.5

Crew

8.7

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

EVA Air
8.4
Very good
1,308 reviews
Korean Air
8.5
Very good
1,024 reviews

Entertainment

8.2

Comfort

8.3

Overall

8.5

Food

8.1

Boarding

8.5

Crew

8.7

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

ANA
8.4
Very good
833 reviews
Korean Air
8.5
Very good
1,024 reviews

Entertainment

8.2

Comfort

8.3

Overall

8.5

Food

8.1

Boarding

8.5

Crew

8.7

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

Japan Airlines
8.3
Very good
1,460 reviews
Korean Air
8.5
Very good
1,024 reviews

Entertainment

8.2

Comfort

8.3

Overall

8.5

Food

8.1

Boarding

8.5

Crew

8.7

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

Asiana Airlines
8.3
Very good
476 reviews
Korean Air
8.5
Very good
1,024 reviews

Entertainment

8.2

Comfort

8.3

Overall

8.5

Food

8.1

Boarding

8.5

Crew

8.7

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

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 228 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?

    $461 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on Asiana Airlines and United Airlines, with prices starting from $500 and $506, 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 (69%), Delta (57%) and Etihad Airways (53%).

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

    The cheapest flight price from Seattle to South Korea is $420. On average you can expect to pay $1,526. The most popular route, (Seattle/Tacoma Intl - Incheon Intl), can usually be booked for $889.

  • 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 $1,102). Flying from Seattle to South Korea in June is currently the most expensive (average of $1,708). 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

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

Alternative routes for Seattle to South Korea

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Narita flights
Seattle to Haneda flights
Seattle to Suvarnabhumi flights
Seattle to New Delhi flights
Seattle to Taiwan Taoyuan Intl flights
Seattle to Manila flights
Seattle to Incheon Intl flights
Seattle to Hongqiao Intl flights
Portland to Narita flights
Seattle to Ho Chi Minh City flights
Portland to Haneda flights
Seattle to Pu Dong flights
Seattle to Mumbai flights
Portland to Suvarnabhumi flights
Seattle to Sung Shan flights
Seattle to Gimpo Intl flights
Seattle to Capital flights
Seattle to Hyderabad flights
Seattle to Hong Kong flights
Seattle to Singapore flights
Seattle to Denpasar flights
Seattle to Beijing Daxing Intl flights
Seattle to Hanoi flights
Seattle to Bangalore flights
Seattle to Kansai Intl flights
Seattle to Kuala Lumpur Intl flights
Seattle to Itami flights
Seattle to Cebu City flights
Portland to Ho Chi Minh City flights
Seattle to Colombo flights
Seattle to Phuket City flights
Seattle to Chitose flights
Portland to Manila flights
Seattle to Ahmedabad flights
Portland to Incheon Intl flights
Seattle to Don Mueang Intl flights
Seattle to Fukuoka flights
Seattle to Dhaka flights
Seattle to Da Nang flights
Seattle to Okinawa flights
Seattle to Chennai flights
Seattle to Phnom Penh flights
Portland to New Delhi flights
Seattle to Soekarno-Hatta Intl flights
Portland to Taiwan Taoyuan Intl flights
Seattle to Kolkata flights
Seattle to Cochin flights
Seattle to Kobe flights
Seattle to Kathmandu flights
Seattle to Angeles City flights

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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$600Average$813FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$769Average$1,477FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$852Average$1,025FlexibilityNo cancel feeOn-time67%
China AirlinesCheapest$856Average$948FlexibilityNo cancel feeOn-time70%
DeltaCheapest$959Average$1,482FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$970Average$1,150FlexibilityNo cancel feeOn-time77%
EVA AirCheapest$1,027Average$1,247FlexibilityNo cancel feeOn-time74%
Asiana AirlinesCheapest$1,027Average$1,298FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$1,056Average$1,625FlexibilityNo cancel feeOn-time81%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines