$348+ Cheap flights from South Korea to Seattle (SEA)
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 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
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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 South Korea to Seattle
Cheapest flights from South Korea to SeattleExplore the most affordable flight options available from South Korea to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 29, 2026.
Explore the most affordable flight options available from South Korea to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 29, 2026.
This WhyPayMore deal was found by Cheapflights users on 1/28. 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.
This Mytrip deal was found by Cheapflights users on 1/28. 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.
This WhyPayMore deal was found by Cheapflights users on 1/29. 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.
This Mytrip deal was found by Cheapflights users on 1/26. 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.
This Mytrip deal was found by Cheapflights users on 1/27. 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.
This Mytrip deal was found by Cheapflights users on 1/27. 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.
This Hanatour deal was found by Cheapflights users on 1/27. 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 Hanatour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Air Canada deal was found by Cheapflights users on 1/26. 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.
This Mytrip deal was found by Cheapflights users on 1/29. 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.
This Air Canada deal was found by Cheapflights users on 1/28. 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.
This Mytrip deal was found by Cheapflights users on 1/27. 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.
This YBTour deal was found by Cheapflights users on 1/28. 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 YBTour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Find flight deals from South Korea to Seattle
Keep the following information in mind while searching for South Korea to Seattle flight deals. Data was last updated enero 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $442 (WhyPayMore) |
One-way from | $348 (Kiwi.com) |
Popular in | August |
Cheapest in | November |
Average price | $744 |
Good round-trip deal | $700 or less |
Good one-way deal | $633 or less |
Cheapflights Fare Finder
Use the filters below to find and compare flights from South Korea to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
BusanSeattle
PUS - SEA
PUSSEA
Busan Gimhae
mié. 4/22
7:15 am-3:03 pm
2 stops23h 48m
Seattle/Tacoma Intl
jue. 5/7
9:55 am-7:20 am
2 stops29h 25m
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
mié. 2/25
12:45 pm-11:30 pm
1 stop27h 45m
Seattle/Tacoma Intl
mié. 3/4
5:20 pm-5:40 am
1 stop19h 20m
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
jue. 2/19
12:45 pm-6:26 pm
1 stop22h 41m
Seattle/Tacoma Intl
mar. 4/14
11:35 am-4:20 am
1 stop24h 45m
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
jue. 2/26
6:00 pm-10:13 pm
2 stops21h 13m
Seattle/Tacoma Intl
jue. 3/5
8:45 am-5:40 am
2 stops27h 55m
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
lun. 2/23
6:00 pm-11:30 pm
1 stop22h 30m
Seattle/Tacoma Intl
sáb. 3/7
4:31 pm-3:15 pm
2 stops29h 44m
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
lun. 3/2
6:00 pm-9:49 am
2 stops32h 49m
Seattle/Tacoma Intl
dom. 3/8
5:00 am-4:40 am
2 stops31h 40m
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
sáb. 2/28
6:00 pm-9:49 am
2 stops32h 49m
Seattle/Tacoma Intl
sáb. 3/7
4:31 pm-3:15 pm
2 stops29h 44m
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
dom. 5/17
7:35 pm-1:50 pm
Nonstop10h 15m
Seattle/Tacoma Intl
dom. 8/2
1:45 pm-5:30 pm
Nonstop11h 45m
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
jue. 5/7
7:35 pm-1:50 pm
Nonstop10h 15m
Seattle/Tacoma Intl
jue. 6/25
1:45 pm-5:30 pm
Nonstop11h 45m
IncheonSeattle
ICN - SEA
ICNSEA
Incheon Intl
lun. 4/6
7:00 pm-1:07 pm
Nonstop10h 07m
Seattle/Tacoma Intl
jue. 6/18
1:05 pm-4:50 pm
Nonstop11h 45m
Best time to book a flight from South Korea to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from South Korea with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from South Korea to Seattle
What is the cheapest month to book a flight from South Korea to Seattle?
Currently, November is the cheapest month in which you can book a flight from South Korea to Seattle (average of $338). Flying from South Korea to Seattle in August is currently the most expensive (average of $666). 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 KR to SEA?
Find hourly flight availability from South Korea to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated enero 29, 2026.
When flying from South Korea to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 13% versus a flight at noon.
What is the cheapest day to fly from South Korea to Seattle?
Use this chart to determine the cheapest time to fly round-trip from South Korea to Seattle. Price data was last updated on January 24, 2026.
Travelers seeking maximum savings on their South Korea to Seattle flight should consider departing on Thursday evenings when fares are most often at their lowest. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from South Korea to Seattle
Explore weekly flight availability from South Korea to Seattle. 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 enero 29, 2026.
The most flights from KR0 to SEA are scheduled on a Friday (10 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 on average).
How often are flights from South Korea to Seattle delayed?
About 30% of weekly flights between South Korea and Seattle have experienced delays in the past year, with the average delay time being 160 minutes.
What is the most punctual flight time for South Korea to Seattle flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Thursday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on South Korea to Seattle flights?
Over the last year, Hawaiian Airlines have had the lowest number of delays on this route, with just 18% of flights being delayed.
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated enero 29, 2026.
Read reviews from past customers who have flown Korean Air, Asiana Airlines, and Alaska Airlines from South Korea to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
Crew
Food
Overall
Boarding
Entertainment
Reviews
Jacqueline,Aug 2025
ICN - SEA
Comfort
Crew
Food
Overall
Boarding
Entertainment
Reviews
Jacqueline,Aug 2025
ICN - SEA
Comfort
Crew
Food
Overall
Boarding
Entertainment
Reviews
Jacqueline,Aug 2025
ICN - SEA
Comfort
Crew
Food
Overall
Boarding
Entertainment
Reviews
Jacqueline,Aug 2025
ICN - SEA
Comfort
Crew
Food
Overall
Boarding
Entertainment
Reviews
Jacqueline,Aug 2025
ICN - SEA
Comfort
Crew
Food
Overall
Boarding
Entertainment
Reviews
Jacqueline,Aug 2025
ICN - SEA
Related info for your journey
Find useful and relevant information for your journey from South Korea to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for South Korea to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from South Korea to Seattle
Discover the top 5 airlines that operate flights from South Korea to Seattle. 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 enero 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$351 | Average$866 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$466 | Average$652 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$469 | Average$728 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$476 | Average$583 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$606 | Average$667 | FlexibilityNo cancel fee | On-timeN/A |