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$475+ 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 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ICN
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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Cheap flight deals from Seattle to South Korea

Keep the following information in mind while searching for Seattle to South Korea flight deals. Data was last updated febrero 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$936
(Gotogate)

One-way from

$475
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,027

Good round-trip deal

$749 or less

Good one-way deal

$436 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 Seattle/Tacoma Intl to South Korea
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One-way flight from Seattle/Tacoma Intl to South Korea
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Highest demand for flights based on searches. 18% potential increase in price ($282 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to South Korea.
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Price to beat on a 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 febrero 20, 2025.

This Gotogate deal was found by Cheapflights users on 2/20. 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.
lun. 4/71:10 amSEA - ICN
1 stop26h 25mChina Airlines
mar. 4/2212:35 pmICN - SEA
1 stop22h 55mChina Airlines
Deal found 2/20$936
This FlightHub deal was found by Cheapflights users on 2/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/247:10 amSEA - PUS
2 stops36h 25mChina Eastern
lun. 3/315:50 pmPUS - SEA
2 stops39h 05mChina Eastern
Deal found 2/19$936
This Kiwi.com deal was found by Cheapflights users on 2/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/43:48 pmSEA - ICN
2 stops35h 42mMultiple Airlines
mié. 4/212:50 pmICN - SEA
1 stop22h 11mMultiple Airlines
Deal found 2/20$942
This Trip.com deal was found by Cheapflights users on 2/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 4/51:10 amSEA - PUS
1 stop37h 05mMultiple Airlines
dom. 4/1310:00 pmPUS - SEA
1 stop37h 30mMultiple Airlines
Deal found 2/20$957
This Air Canada deal was found by Cheapflights users on 2/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/67:05 pmSEA - ICN
1 stop29h 00mAir Canada
jue. 4/105:45 pmICN - SEA
1 stop16h 43mAir Canada
Deal found 2/20$966
This FlightHub deal was found by Cheapflights users on 2/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/281:30 amSEA - ICN
1 stop17h 30mEVA Air
lun. 10/1312:00 pmICN - SEA
1 stop23h 30mEVA Air
Deal found 2/20$979
This Ovago deal was found by Cheapflights users on 2/20. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/1112:10 amSEA - PUS
1 stop25h 35mChina Airlines
lun. 12/111:50 amPUS - SEA
1 stop23h 25mChina Airlines
Deal found 2/20$1,000
This FlightHub deal was found by Cheapflights users on 2/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/57:00 pmSEA - ICN
1 stop30h 20mTurkish Airlines
mié. 3/1910:45 amICN - SEA
1 stop47h 20mTurkish Airlines
Deal found 2/20$1,007
This KAYAK deal was found by Cheapflights users on 2/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 3/1311:00 amSEA - ICN
2 stops42h 30mHainan Airlines
mié. 4/210:35 pmICN - SEA
2 stops26h 25mHainan Airlines
Deal found 2/20$1,047
This Justfly.com deal was found by Cheapflights users on 2/20. 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.
jue. 3/612:10 amSEA - GMP
1 stop19h 40mEVA Air
sáb. 3/151:50 pmGMP - SEA
1 stop21h 20mEVA Air
Deal found 2/20$1,058
This WestJet deal was found by Cheapflights users on 2/20. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/111:30 amSEA - ICN
2 stops39h 15mWestJet
lun. 4/148:45 pmICN - SEA
2 stops53h 15mWestJet
Deal found 2/20$1,060
This FlightHub deal was found by Cheapflights users on 2/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 3/911:35 pmSEA - ICN
1 stop38h 30mPhilippine Airlines
dom. 4/68:00 amICN - SEA
1 stop27h 20mPhilippine Airlines
Deal found 2/20$1,078

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 febrero 20, 2025.

Fly from

Seattle

Fly to

South Korea

Route

Depart

Return

Price

SeattleBusan

SEA - PUS

SEAPUS

Seattle/Tacoma Intl

lun. 4/7

1:10 am-7:00 pm

1 stop25h 50m

Busan Gimhae

jue. 5/8

12:15 pm-7:30 pm

1 stop23h 15m

$906

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

vie. 4/18

7:00 am-7:50 pm

1 stop20h 50m

Incheon Intl

dom. 4/20

1:30 pm-1:25 pm

2 stops39h 55m

$932

SeattleBusan

SEA - PUS

SEAPUS

Seattle/Tacoma Intl

lun. 3/24

7:10 am-11:35 am

2 stops36h 25m

Busan Gimhae

lun. 3/31

5:50 pm-4:55 pm

2 stops39h 05m

$936

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

lun. 4/7

1:10 am-7:35 pm

1 stop26h 25m

Incheon Intl

mar. 4/22

12:35 pm-7:30 pm

1 stop22h 55m

$938

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

sáb. 4/5

11:30 am-6:45 pm

2 stops39h 15m

Incheon Intl

sáb. 4/12

8:45 pm-2:21 pm

1 stop33h 36m

$955

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

mar. 4/8

10:30 am-4:05 pm

1 stop13h 35m

Incheon Intl

mar. 4/22

5:45 pm-10:03 pm

1 stop20h 18m

$962

SeattleBusan

SEA - PUS

SEAPUS

Seattle/Tacoma Intl

sáb. 4/5

1:10 am-6:15 am

1 stop37h 05m

Busan Gimhae

dom. 4/13

10:00 pm-7:30 pm

1 stop37h 30m

$990

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

mié. 4/16

1:30 am-11:00 am

1 stop17h 30m

Incheon Intl

jue. 5/15

7:45 pm-7:30 pm

1 stop15h 45m

$994

SeattleBusan

SEA - PUS

SEAPUS

Seattle/Tacoma Intl

mar. 4/8

2:15 pm-3:30 pm

2 stops33h 15m

Busan Gimhae

jue. 5/8

10:00 am-12:30 pm

2 stops18h 30m

$997

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

lun. 3/10

8:00 pm-6:20 pm

1 stop30h 20m

Incheon Intl

mié. 3/26

10:45 am-6:05 pm

1 stop47h 20m

$1,007

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 48 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, February is the cheapest month in which you can book a flight from Seattle to South Korea (average of $1,036). Flying from Seattle to South Korea in June is currently the most expensive (average of $1,697). 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 febrero 20, 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 febrero 20, 2025.

The most flights from SEA to KR0 are scheduled on a Wednesday (12 on average). You will have fewer flight options on Sunday, 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 febrero 20, 2025.
To help decide which airline to fly from Seattle to South Korea, see what other customers have to say about EVA Air, ANA and Korean Air. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,200 reviews

Comfort

8.3

Entertainment

8.0

Food

8.0

Overall

8.4

Crew

8.6

Boarding

8.4

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

EVA Air
8.4
Very good
1,200 reviews
EVA Air
8.4
Very good
1,200 reviews

Comfort

8.3

Entertainment

8.0

Food

8.0

Overall

8.4

Crew

8.6

Boarding

8.4

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

ANA
8.4
Very good
842 reviews
EVA Air
8.4
Very good
1,200 reviews

Comfort

8.3

Entertainment

8.0

Food

8.0

Overall

8.4

Crew

8.6

Boarding

8.4

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

Korean Air
8.4
Very good
1,037 reviews
EVA Air
8.4
Very good
1,200 reviews

Comfort

8.3

Entertainment

8.0

Food

8.0

Overall

8.4

Crew

8.6

Boarding

8.4

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

Japan Airlines
8.3
Very good
1,440 reviews
EVA Air
8.4
Very good
1,200 reviews

Comfort

8.3

Entertainment

8.0

Food

8.0

Overall

8.4

Crew

8.6

Boarding

8.4

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

China Airlines
8.2
Very good
727 reviews
EVA Air
8.4
Very good
1,200 reviews

Comfort

8.3

Entertainment

8.0

Food

8.0

Overall

8.4

Crew

8.6

Boarding

8.4

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

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?

    $477 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on China Airlines and China Eastern, with prices starting from $528 and $539, 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 - Busan Gimhae 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 (76%), Etihad Airways (67%) and Korean Air (56%).

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

    The cheapest flight price from Seattle to South Korea is $357. On average you can expect to pay $1,566. The most popular route, (Seattle/Tacoma Intl - Incheon Intl), can usually be booked for $844.

  • 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, February is the cheapest month in which you can book a flight from Seattle to South Korea (average of $1,036). Flying from Seattle to South Korea in June is currently the most expensive (average of $1,697). 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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Alternative routes for Seattle to South Korea

See prices for flight routes from nearby airports that may be better suited for you.
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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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$600Average$813FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$769Average$1,477FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$849Average$986FlexibilityNo cancel feeOn-time67%
China AirlinesCheapest$856Average$953FlexibilityNo cancel feeOn-time70%
Asiana AirlinesCheapest$936Average$1,265FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$969Average$1,613FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$970Average$1,249FlexibilityNo cancel feeOn-time77%
DeltaCheapest$982Average$1,465FlexibilityNo cancel feeOn-timeN/A
EVA AirCheapest$986Average$1,078FlexibilityNo cancel feeOn-time74%
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