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Incheon Intl

$341+ Cheap flights from Seattle (SEA) to Incheon Intl (ICN)

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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ICN
Apr 15 — Apr 221
Wed 4/15
Wed 4/22
1 adult, Economy
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Find cheap flights from Seattle to Incheon Intl 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

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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Incheon Intl are usually found in April or August, booked 69 days in advance, depart on a Wednesday or Monday and return on a Monday

Cheap flight deals from Seattle to Incheon Intl

Cheapest flights from Seattle to Incheon Intl
Explore the most affordable flight options available from Seattle to Incheon Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 16, 2026.

This Mytrip deal was found by Cheapflights users on 3/11. 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.
Thu 10/1511:45 am
SEA
-
ICN
1 stop39h 20m
Cathay Pacific
Mon 11/27:35 pm
ICN
-
SEA
1 stop30h 35m
Cathay Pacific
Deal found 3/11$686
This KAYAK deal was found by Cheapflights users on 3/15. 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.
Thu 10/111:45 am
SEA
-
ICN
1 stop18h 40m
Cathay Pacific
Tue 10/68:00 am
ICN
-
SEA
1 stop18h 05m
Cathay Pacific
Deal found 3/15$687
This Gurufare deal was found by Cheapflights users on 3/12. 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.
Thu 8/2712:25 pm
SEA
-
ICN
1 stop20h 00m
Cathay Pacific
Mon 9/71:40 pm
ICN
-
SEA
1 stop36h 40m
Cathay Pacific
Deal found 3/12$691
This Booking.com deal was found by Cheapflights users on 3/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/85:40 am
SEA
-
ICN
1 stop18h 25m
Air Canada
Mon 5/115:45 pm
ICN
-
SEA
1 stop12h 35m
Air Canada
Deal found 3/11$693
This BusinessClass deal was found by Cheapflights users on 3/15. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:45 am
SEA
-
ICN
1 stop18h 40m
Cathay Pacific
Wed 10/78:00 am
ICN
-
SEA
1 stop18h 05m
Cathay Pacific
Deal found 3/15$694
This Booking.com deal was found by Cheapflights users on 3/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/135:40 am
SEA
-
ICN
1 stop18h 25m
Air Canada
Wed 6/35:45 pm
ICN
-
SEA
1 stop16h 45m
Air Canada
Deal found 3/14$700
This flugladen.de deal was found by Cheapflights users on 3/14. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2811:45 am
SEA
-
ICN
1 stop18h 40m
Cathay Pacific
Tue 5/58:00 am
ICN
-
SEA
1 stop18h 05m
Cathay Pacific
Deal found 3/14$701
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
Tue 4/2111:45 am
SEA
-
ICN
1 stop34h 20m
Cathay Pacific
Tue 5/128:00 am
ICN
-
SEA
1 stop18h 05m
Cathay Pacific
Deal found 3/12$711
This Trip.com deal was found by Cheapflights users on 3/13. 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.
Tue 10/611:45 am
SEA
-
ICN
1 stop20h 40m
Cathay Pacific
Tue 10/277:35 pm
ICN
-
SEA
1 stop30h 35m
Cathay Pacific
Deal found 3/13$713
This Trip.com deal was found by Cheapflights users on 3/12. 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.
Tue 10/611:45 am
SEA
-
ICN
1 stop20h 40m
Cathay Pacific
Tue 11/173:00 pm
ICN
-
SEA
1 stop35h 10m
Cathay Pacific
Deal found 3/12$714
This Trip.com deal was found by Cheapflights users on 3/12. 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 4/2711:45 am
SEA
-
ICN
1 stop20h 40m
Cathay Pacific
Wed 5/201:40 pm
ICN
-
SEA
1 stop36h 25m
Cathay Pacific
Deal found 3/12$716
This Cathay Pacific deal was found by Cheapflights users on 3/16. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:45 am
SEA
-
ICN
1 stop20h 40m
Cathay Pacific
Tue 10/131:55 am
ICN
-
SEA
1 stop24h 10m
Cathay Pacific
Deal found 3/16$717

Find flight deals from Seattle to Incheon Intl

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Incheon Intl (ICN). 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 March 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$687
(KAYAK)

One-way from

$341
(KAYAK)

Popular in

December

Cheapest in

April

Average price

$883

Good round-trip deal

$667 or less

Good one-way deal

$368 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Incheon Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Incheon Intl flights.
Search Deals
From Seattle/Tacoma Intl to Incheon Intl
Search Deals
One-way flight from Seattle/Tacoma Intl to Incheon Intl
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($153 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Incheon Intl.
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Incheon Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Incheon Intl 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 March 16, 2026.
Use the filters below to find and compare flights from Seattle to Incheon Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Thu 4/23

7:59 pm-3:20 pm

1 stop27h 21m

Incheon Intl

Fri 5/15

12:25 pm-4:53 pm

1 stop20h 28m

$817
Quickest round-trip

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Thu 4/23

1:00 pm-4:50 pm

Nonstop11h 50m

Incheon Intl

Fri 5/15

7:00 pm-1:11 pm

Nonstop10h 11m

$849

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Fri 5/1

7:00 am-5:20 pm

1 stop18h 20m

Incheon Intl

Sun 5/17

4:40 pm-10:40 am

Nonstop10h 00m

$903

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Thu 4/23

12:22 pm-4:20 am

2 stops23h 58m

Incheon Intl

Mon 4/27

4:50 pm-11:27 pm

1 stop22h 37m

$918

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Thu 5/7

12:50 pm-4:40 pm

Nonstop11h 50m

Incheon Intl

Tue 5/26

4:00 pm-4:01 pm

1 stop16h 01m

$937

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Fri 4/24

6:00 am-4:20 am

2 stops30h 20m

Incheon Intl

Sat 5/23

4:50 pm-9:59 pm

2 stops21h 09m

$974

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Wed 4/15

1:00 pm-4:50 pm

Nonstop11h 50m

Incheon Intl

Tue 5/19

7:00 pm-1:11 pm

Nonstop10h 11m

$987

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sun 7/19

1:20 pm-4:40 pm

Nonstop11h 20m

Incheon Intl

Wed 8/19

9:00 pm-9:51 pm

1 stop16h 51m

$990

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sat 8/22

1:20 pm-4:40 pm

Nonstop11h 20m

Incheon Intl

Sun 8/30

9:00 pm-9:51 pm

1 stop16h 51m

$995
Cheapest one-way

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sun 4/12

7:51 pm-12:25 am

2 stops36h 34m

$484

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/15

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Compare providers for flights from Seattle to Incheon Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Incheon Intl in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
oojoPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
BudgetAirPrice Accuracy1 starTrust Score*3 stars
GurufarePrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Incheon Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Incheon Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Incheon Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Incheon Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Incheon Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Incheon Intl

Have a flexible travel schedule? Discover the best time to fly to Incheon Intl 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.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Incheon Intl Airport

How far ahead should I book a flight from Seattle to Incheon Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Incheon Intl. Price data was last updated on March 13, 2026.

The price you pay for your flight from Seattle to Incheon Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 69 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Seattle to Incheon Intl Airport?

Currently, April is the cheapest month in which you can book a flight from Seattle to Incheon Intl Airport (average of $335). Flying from Seattle to Incheon Intl Airport in December is currently the most expensive (average of $748). 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 ICN?

Find hourly flight availability from Seattle to Incheon Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 16, 2026.

When flying from Seattle to Incheon Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 49% versus a flight in the afternoon.

The best insider tips for Seattle to Incheon Intl Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to Incheon Intl Airport trip
Our travel experts
Yulia Denisyuk

Yulia Denisyuk

Expert on Korean Air

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Read more
Marisa Garcia

Marisa Garcia

Expert on Asiana Airlines

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Gabriel Leigh

Gabriel Leigh

Expert on ICN

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

Reviews of airlines servicing Incheon Intl

Get insights into the airlines that provide service to Incheon Intl. 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 Incheon Intl. Reviews last updated March 16, 2026.
Peruse reviews from past customers who have flown with Korean Air,Asiana Airlines, andAlaska Airlines from Seattle to Incheon Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,202 reviews

Boarding

8.5

Crew

8.7

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,202 reviews
Korean Air
8.4
Very good
1,202 reviews

Boarding

8.5

Crew

8.7

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Asiana Airlines
8.1
Very good
506 reviews
Korean Air
8.4
Very good
1,202 reviews

Boarding

8.5

Crew

8.7

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Alaska Airlines
7.9
Good
12,052 reviews
Korean Air
8.4
Very good
1,202 reviews

Boarding

8.5

Crew

8.7

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Delta
7.9
Good
8,289 reviews
Korean Air
8.4
Very good
1,202 reviews

Boarding

8.5

Crew

8.7

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Air Canada
7.1
Good
10,806 reviews
Korean Air
8.4
Very good
1,202 reviews

Boarding

8.5

Crew

8.7

Overall

8.4

Food

8.1

Comfort

8.3

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Incheon Intl. 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 Incheon Intl?

    If you book a flight to Incheon Intl from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There are 8 flights from Seattle/Tacoma Intl to Incheon Intl per day from 11 different airlines.

  • How long is the flight from Seattle to Incheon Intl Airport?

    For as low as $849, Korean Air can have you in Incheon Intl Airport from Seattle in 11h 50m. The distance from Seattle to Incheon Intl Airport is about 5200 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Seattle to Incheon Intl Airport round-trip?

    Delta, at $212, was found to be the cheapest airline from Seattle to Incheon Intl Airport.Alternate airlines to your destination round-trip include United Airlines and Hawaiian Airlines. These flights start at 75% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Seattle to Incheon Intl Airport one-way?

    For one-way options, check prices for Hawaiian Airlines. According to our data, you can fly for as low as $160. Users have also found prices from $182 and $406 on Alaska Airlines and Asiana Airlines, respectively.

  • What are the most reliable airlines from Seattle to Incheon Intl Airport?

    Before booking your flight to Incheon Intl Airport from Seattle, check out the most reliable airlines to get you to your destination on time: Thai Airways (98%), Asiana Airlines (98%), United Airlines( 98%).

  • What are the cheapest flights from Seattle to Incheon Intl Airport?

    On average you can expect to pay $1,247 for a flight from Seattle to Incheon Intl Airport. The cheapest flight overall is $293 while the most popular route, (Seattle/Tacoma Intl - Incheon Intl) is currently priced at $687.

  • Can I find deals for flights from Seattle to Incheon Intl that include hotel bookings?

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

  • How can I find direct flights from Seattle to Incheon Intl?

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

  • Can I find deals for business class flights from Seattle to Incheon Intl?

    Yes. Cheapflights offers flight deals from Seattle to Incheon Intl 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 Incheon Intl Airport?

    Currently, April is the cheapest month in which you can book a flight from Seattle to Incheon Intl Airport (average of $335). Flying from Seattle to Incheon Intl Airport in December is currently the most expensive (average of $748). 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

Traveling to a place near Incheon Intl Airport?

Book flights to Incheon Intl Airport if you plan to visit one of these locations
Suwon
Seongnam

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Seattle to Incheon Intl

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Incheon Intl flights
Spokane to Incheon Intl flights

Top 10 airlines flying from Seattle to Incheon Intl

Discover the top 10 airlines that operate flights from Seattle to Incheon Intl. 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 March 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$212Average$979FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$282Average$660FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$282Average$840FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$335Average$338FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$524Average$859FlexibilityNo cancel feeOn-time67%
Asiana AirlinesCheapest$674Average$914FlexibilityNo cancel feeOn-time76%
Alaska AirlinesCheapest$799Average$885FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$843Average$1,027FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$896Average$1,206FlexibilityNo cancel feeOn-time70%
EVA AirCheapest$978Average$1,077FlexibilityNo cancel feeOn-time74%

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