$528 Cheap Korean Air flights from Seattle to Seoul (SEA to ICN)

Find The Best Day To Fly from Seattle to Seoul

Amazing Korean Air SEA to ICN Flight Deals

The cheapest flights to Incheon Intl. found within the past 7 days were $978 round trip and $528 one way. Prices and availability subject to change. Additional terms may apply.

Tue, Oct 21 - Fri, Nov 7
SEA
Seattle
ICN
Seoul
$978 Roundtrip, just found
$978
Roundtrip
just found
Select Korean Air flight, departing Tue, Oct 21 from Seattle to Seoul, returning Fri, Nov 7, priced at $978 just found
Wed, Oct 1 - Sat, Oct 18
SEA
Seattle
ICN
Seoul
$1,000 Roundtrip, just found
$1,000
Roundtrip
just found
Select Korean Air flight, departing Wed, Oct 1 from Seattle to Seoul, returning Sat, Oct 18, priced at $1,000 just found

ICN From SEA Economy Coach Packages on Similar Airlines

Price found within the past 48 hours. Click for updated prices.
HOTEL MYEONGDONGJANG

HOTEL MYEONGDONGJANG

3 out of 5
per person
Jun 12 - Jun 18
found 1 day ago
Roundtrip non-stop flight included
Seattle (SEA) to Seoul (ICN)
Crown Park Hotel

Crown Park Hotel

3.5 out of 5
per person
Jun 12 - Jun 18
found 1 day ago
Roundtrip non-stop flight included
Seattle (SEA) to Seoul (ICN)
Shilla Stay Seodaemun Seoul Station

Shilla Stay Seodaemun Seoul Station

4 out of 5
per person
Jun 12 - Jun 18
found 1 day ago
Roundtrip non-stop flight included
Seattle (SEA) to Seoul (ICN)
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Frequently asked questions

Can I catch a flight from Seattle - Tacoma Intl. Airport (SEA) to Incheon Airport right now?
Be sure to go to the Covid-19 Travel Advisor to discover if there are any current travel advice reports and quarantine requirements in effect in Incheon Intl. Airport (ICN) when jet-setting from Seattle - Tacoma Intl. Airport (SEA).
What terminal is Korean Air at Sea-Tac Airport?
If you’re catching a flight from SEA to Seoul–Incheon Intl. Airport, the odds are you’ll be arriving at terminal 2. We can’t say for sure which terminal you’ll be heading off from — you’ll need to check with your airline.
Are there Korean Air non-stop flights from SEA to ICN?
Direct flights are available for booking with Korean Air, which means you’ll be able to fly from Seattle - Tacoma Intl. Airport (SEA) to Incheon Airport the easy way. Those thrilling vacation experiences you’re searching for are a trouble-free flight away.
How long is a Korean Air flight from SEA to ICN?
If the weather is favorable and all is running smoothly, your Korean Air flight should take you from SEA to ICN in an average of 14 hours and 10 minutes. As it’s a lengthy flight, listen to the advice of other seasoned travelers and get a good night’s rest before you fly out. Keeping hydrated while you’re airborne is another handy travel tip to take on board.
What type of aircraft does Korean Air fly from SEA to ICN?
Buckle up, sit back and enjoy the ride aboard the Boeing 787-9. This aircraft is generally used on the SEA to ICN route by Korean Air.
How many direct and indirect flights does Korean Air fly from SEA to ICN?
Throughout the week, you’ll find no fewer than 9 Korean Air flights between Seattle - Tacoma Intl. Airport (SEA) and Incheon Intl. Airport (ICN).
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to ICN, please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Discover our best Korean Air flight from Seattle SEA to Seoul ICN 

To find the best deals on flights to Seattle from Seoul with Korean Air, just enter your travel dates, filter by Korean Air, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from Seattle SEA to Seoul ICN with Korean Air 

If you’re planning a round trip, booking return flights with Korean Air is usually the most cost-effective option. With airfares ranging from $978 to $1,000, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way Korean Air flights from Seattle SEA to Seoul ICN 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way Korean Air flight from Seattle to Seoul costs from $528. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Seoul ICN from  Seattle SEA with Korean Air 

To find a cheap Korean Air flight from Seattle SEA to Seoul ICN, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on Korean Air flights from Seattle SEA to Seoul ICN 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as October, or if you book a flight with a stopover. 

 

Find nonstop flights from Seattle SEA to Seoul ICN with Korean Air 

If you’re keen to be on Seoul soil fast, don’t waste time with a stopover—filter your search results to show direct Korean Air flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for Korean Air flights from Seattle SEA to Seoul ICN 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Seoul ICN from  Seattle SEA with Korean Air on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

Travelers ❤️ these 🏨 after their flight to Seoul

Grand Hyatt Incheon
Grand Hyatt Incheon
5 out of 5
208, Yeongjonghaeannam-ro 321beon-gil, Jung-gu, Incheon, Incheon
A full-service spa, 3 restaurants, and an indoor pool are all featured at this luxury hotel. Bring the family and enjoy the children's pool, playground, and ...
9/10 Wonderful! (2,140 reviews)
"Property was great. It was a bit confusing on which tower to go to, but there's a convenient sky bridge that connects the two towers. The first staff member I encountered was quite rude. However, I still enjoyed my stay. The other staff members were friendly and helpful."

Reviewed on May 8, 2025

Grand Hyatt Incheon
ibis Styles Ambassador Incheon Airport T2
ibis Styles Ambassador Incheon Airport T2
4 out of 5
340 Je2terminal daero Jung gu IBC II, Incheon
This hotel features a restaurant, a 24-hour gym, and a bar/lounge. Traveling on business? Take advantage of the 24-hour business center, free WiFi in public ...
9/10 Wonderful! (2,400 reviews)
"The room was nice. Food options was good. The shuttle is a great service, one of the drivers was really lovely and efficient with luggage. I ordered room service and a robot delivered it. I was so excited that I locked myself out! Was a fun experience. Having a convenience store onsite is an excellent ..."

Reviewed on May 10, 2025

ibis Styles Ambassador Incheon Airport T2
Incheon Airport Transit Hotel - Terminal 2
Incheon Airport Transit Hotel - Terminal 2
2.5 out of 5
Terminal 2 Incheon International Airport, Duty Free Area Gate 252, 4th Floor, Incheon
A restaurant and free WiFi in public areas are featured at this hotel. Staff at the 24-hour front desk can provide around-the-clock assistance.
8.6/10 Excellent! (1,004 reviews)
Overnight layover convenience.
"Not every airport has a hotel within the terminal and staying in the Transit hotel is amazing. If you have an overnight layover in Incheon airport, staying at Transit hotel is a must. Enjoy sleeping in a comfortable bed and not on the floor. Take a shower before getting to your connecting flight. ..."

Reviewed on May 7, 2025

Incheon Airport Transit Hotel - Terminal 2
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.