How many flights depart from Seattle to South Korea on average per day?

The number of flights available between Seattle and South Korea is 8 per day as of November 2025. The most frequent departure time is 11:00AM, with 47% of daily flights leaving in the afternoon.

What airlines fly to South Korea?

Korean Air, Asiana Airlines and Delta are the top three most popular airlines that fly to South Korea from Seattle according to our data. Korean Air is the first choice among our users, with 43% of people opting to fly with this airline when traveling to South Korea. Keep in mind that there are 10 different airlines that fly to South Korea on a routine basis, so you have a few additional options to choose from.

How many flights depart from Seattle to South Korea on average per week?

As of November 2025, there are 56 flights per week flying from Seattle to South Korea. The most common day of the week flights depart is Wed, with 18% of flights taking off on this day.

What is the cheapest airline that flies from Seattle/Tacoma Intl to South Korea?

Hainan Airlines, Korean Air, and Asiana Airlines are the most popular carriers operating from Seattle/Tacoma Intl to South Korea

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to South Korea?

Prices for flights from Seattle/Tacoma Intl Airport to South Korea are refreshed on a daily basis.

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to South Korea?

There are 10 operators available for flights from Seattle/Tacoma Intl Airport to South Korea as of November 2025.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to South Korea?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to South Korea.

What documentation or ID do you need to fly to South Korea?

The travel and health documents you'll need for your trip to South Korea may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at South Korea. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$350 Cheap Flights from Seattle to South Korea in 2025/26

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Round-trip

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Cheap round-trip flights

Enter your travel dates to find the best prices.

5:50 pm - 11:50 amSEA-ICN

49h 00m2 stops

6:55 pm - 4:36 pmICN-SEA

14h 41m1 stop

$698Multiple Airlines

Find Deal

Sun, Dec 7 - Wed, Dec 17

8:40 am - 12:30 pmSEA-ICN

34h 50m2 stops

9:20 pm - 8:38 pmICN-SEA

16h 18m1 stop

$700Multiple Airlines

Find Deal

Tue, Dec 9 - Tue, Dec 16

10:05 am - 9:00 pmSEA-ICN

41h 55m2 stops

6:55 pm - 10:06 pmICN-SEA

20h 11m1 stop

$726Multiple Airlines

Find Deal

Thu, Nov 27 - Mon, Dec 1

5:50 am - 4:00 pmSEA-ICN

17h 10m1 stop

5:55 pm - 10:46 pmICN-SEA

21h 51m1 stop

$732Air Canada

Find Deal

Tue, Dec 2 - Wed, Dec 10

8:00 pm - 5:10 pmSEA-ICN

28h 10m1 stop

6:55 pm - 7:16 pmICN-SEA

17h 21m1 stop

$762Air Canada

Find Deal

Sun, Nov 23 - Mon, Dec 8

12:35 pm - 7:45 pmSEA-TAE

15h 10m1 stop

7:40 am - 2:20 pmTAE-SEA

22h 40m1 stop

$977Delta

Find Deal

Sun, Mar 8 - Thu, Mar 12

12:35 pm - 7:45 pmSEA-TAE

15h 10m1 stop

7:40 am - 2:20 pmTAE-SEA

22h 40m1 stop

$978Delta

Find Deal

Sun, Mar 8 - Thu, Mar 12

12:00 pm - 8:45 pmSEA-PUS

16h 45m1 stop

8:00 am - 2:00 pmPUS-SEA

22h 00m1 stop

$983Korean Air

Find Deal

Fri, Mar 20 - Sun, Mar 29

2:00 pm - 7:45 pmSEA-TAE

37h 45m2 stops

7:40 am - 2:20 pmTAE-SEA

22h 40m1 stop

$986Korean Air

Find Deal

Sun, Mar 8 - Thu, Mar 12

1:10 am - 6:50 pmSEA-PUS

25h 40m1 stop

12:15 pm - 7:30 pmPUS-SEA

23h 15m1 stop

$1,070China Airlines

Find Deal

Thu, Mar 19 - Sun, Mar 29

Asiana Airlines flights from Seattle to South Korea

Our best Asiana Airlines deals on Seattle to South Korea flight tickets

Asiana Airlines

Dec 4

SEA12:10 amSeattle/Tacoma Intl

12h 10m

ICN5:20 amIncheon Intl

Feb 11

ICN9:00 pmIncheon Intl

9h 55m

SEA1:55 pmSeattle/Tacoma Intl

$812

Find similar

Asiana Airlines

Dec 2

SEA12:10 amSeattle/Tacoma Intl

12h 10m

ICN5:20 amIncheon Intl

Dec 7

ICN9:00 pmIncheon Intl

9h 55m

SEA1:55 pmSeattle/Tacoma Intl

$824

Find similar

Asiana Airlines

Nov 18

SEA12:10 amSeattle/Tacoma Intl

12h 10m

ICN5:20 amIncheon Intl

Dec 1

ICN9:00 pmIncheon Intl

9h 55m

SEA1:55 pmSeattle/Tacoma Intl

$874

Find similar

Air Canada flights from Seattle to South Korea

Our best Air Canada deals on Seattle to South Korea flight tickets

Air Canada

Nov 21

SEA8:00 pmSeattle/Tacoma Intl

28h 10m

1 stop

ICN5:10 pmIncheon Intl

Dec 2

ICN6:55 pmIncheon Intl

17h 21m

1 stop

SEA7:16 pmSeattle/Tacoma Intl

$600

Find similar

Air Canada

Nov 21

SEA5:50 amSeattle/Tacoma Intl

18h 20m

1 stop

ICN5:10 pmIncheon Intl

Dec 2

ICN6:55 pmIncheon Intl

17h 21m

1 stop

SEA7:16 pmSeattle/Tacoma Intl

$635

Find similar

Air Canada

Nov 19

SEA10:05 amSeattle/Tacoma Intl

14h 05m

1 stop

ICN5:10 pmIncheon Intl

Dec 18

ICN6:55 pmIncheon Intl

17h 21m

1 stop

SEA7:16 pmSeattle/Tacoma Intl

$732

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sun 12/7

5:50 pm-11:50 am

2 stops49h 00m

Incheon Intl

Wed 12/17

6:55 pm-4:36 pm

1 stop14h 41m

$698

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Tue 12/9

8:40 am-12:30 pm

2 stops34h 50m

Incheon Intl

Tue 12/16

9:20 pm-8:38 pm

1 stop16h 18m

$700

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Thu 11/27

10:05 am-9:00 pm

2 stops41h 55m

Incheon Intl

Mon 12/1

6:55 pm-10:06 pm

1 stop20h 11m

$726

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Tue 12/2

5:50 am-4:00 pm

1 stop17h 10m

Incheon Intl

Wed 12/10

5:55 pm-10:46 pm

1 stop21h 51m

$732

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sun 11/23

8:00 pm-5:10 pm

1 stop28h 10m

Incheon Intl

Mon 12/8

6:55 pm-7:16 pm

1 stop17h 21m

$762

SeattleDaegu

SEA - TAE

SEATAE

Seattle/Tacoma Intl

Sun 3/8

12:35 pm-7:45 pm

1 stop15h 10m

Daegu

Thu 3/12

7:40 am-2:20 pm

1 stop22h 40m

$977

SeattleDaegu

SEA - TAE

SEATAE

Seattle/Tacoma Intl

Sun 3/8

12:35 pm-7:45 pm

1 stop15h 10m

Daegu

Thu 3/12

7:40 am-2:20 pm

1 stop22h 40m

$978

SeattleBusan

SEA - PUS

SEAPUS

Seattle/Tacoma Intl

Fri 3/20

12:00 pm-8:45 pm

1 stop16h 45m

Busan Gimhae

Sun 3/29

8:00 am-2:00 pm

1 stop22h 00m

$983

SeattleDaegu

SEA - TAE

SEATAE

Seattle/Tacoma Intl

Sun 3/8

2:00 pm-7:45 pm

2 stops37h 45m

Daegu

Thu 3/12

7:40 am-2:20 pm

1 stop22h 40m

$986

SeattleBusan

SEA - PUS

SEAPUS

Seattle/Tacoma Intl

Thu 3/19

1:10 am-6:50 pm

1 stop25h 40m

Busan Gimhae

Sun 3/29

12:15 pm-7:30 pm

1 stop23h 15m

$1,070

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Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seattle to South Korea

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to South Korea?

If you aren’t able to travel to South Korea during the month of November, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $900.

What is the cheapest day to depart on your flight to South Korea?

On average, the least expensive day to fly to South Korea from Seattle is on a Monday. momondo users have found tickets for Monday departures for as low as $829. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to South Korea for around $1,015.

What is the cheapest time of day to depart on your flight to South Korea?

Flying to South Korea from Seattle in the evening is the least expensive time of day to depart. momondo users have found prices as low as $715 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,401 on average. Flights to South Korea from Seattle in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Seattle/Tacoma Intl to South Korea flight route?

Fly from Seattle/Tacoma Intl to Incheon Intl for the best Seattle/Tacoma Intl - South Korea flight prices

How far in advance should I book a flight to South Korea?

You are more likely to see cheaper flights to South Korea from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to South Korea for around $1,114 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to South Korea from Seattle for as low as $929 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to South Korea flights?

There are 3 cabin classes available to choose from on Seattle/Tacoma Intl to South Korea flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to South Korea flights?

You could potentially save up to 1% on your flight if you consider stops on a Seattle to South Korea flight.

Cheap Seattle to South Korea flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to South Korea

Best Price Found	$379
Fastest flight time	11h 45m
Direct flights	Every day
Airports in South Korea	1 airport

The best one-way flight to South Korea from Seattle in the past 72 hours is $379. The best round-trip flight deal from Seattle to South Korea found on momondo in the last 72 hours is $681.

The fastest flight from Seattle to South Korea takes 11h 45m

Direct flights go from Seattle to South Korea every day.

There is 1 airport near South Korea: Incheon Intl (ICN)

Search flight deals

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to South Korea?
Prices for flights from Seattle/Tacoma Intl Airport to South Korea are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to South Korea?
There are 10 operators available for flights from Seattle/Tacoma Intl Airport to South Korea as of November 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to South Korea?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to South Korea.
What documentation or ID do you need to fly to South Korea?
The travel and health documents you'll need for your trip to South Korea may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at South Korea. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seattle to South Korea?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Seattle to South Korea is Boeing 787-9 Dreamliner (30.11% of total bookings). The next most popular plane models are Boeing 787-10 Dreamliner (19.66%), Airbus A350-900 (15.38%), and Boeing 787 Dreamliner (8.51%).

Best airlines flying from Seattle to South Korea

Compare and see reviews for airlines that fly from Seattle to South Korea with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $167	Free Cancellation	Rating 7.9 8,007 reviews	Search Delta flights
Alaska Airlines	PriceFrom $190	Free Cancellation	Rating 8.0 11,281 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $282	Free Cancellation	Rating 7.4 9,015 reviews	Search United Airlines flights
Hawaiian Airlines	PriceFrom $282	Free Cancellation	Rating 7.8 2,809 reviews	Search Hawaiian Airlines flights
Air Canada	PriceFrom $709	Free Cancellation	Rating 7.1 10,444 reviews	Search Air Canada flights
Asiana Airlines	PriceFrom $802	Free Cancellation	Rating 8.2 486 reviews	Search Asiana Airlines flights
China Airlines	PriceFrom $835	Free Cancellation	Rating 8.3 778 reviews	Search China Airlines flights
Korean Air	PriceFrom $850	Free Cancellation	Rating 8.4 1,163 reviews	Search Korean Air flights
EVA Air	PriceFrom $978	Free Cancellation	Rating 8.4 1,275 reviews	Search EVA Air flights
Turkish Airlines	PriceFrom $1,007	Free Cancellation	Rating 7.3 4,043 reviews	Search Turkish Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to South Korea?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to South Korea for you.

Can I find flights from Seattle to South Korea with flexible booking policies on momondo?

All flight searches from Seattle to South Korea on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Seattle to South Korea?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to South Korea.

I’m not ready to book a flight from Seattle to South Korea right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Seattle to South Korea now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to South Korea and let you know when they change.

An easier way to manage your South Korea trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to South Korea

Popular cities in South Korea

Flights to Seoulfrom $562

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Flights to Gwangjufrom $1,247

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Flights to Ulsanfrom $2,240

Flights to Jinjufrom $1,501

Flights to Muan

Cheap flights from Seattle to South Korea from $350

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to South Korea departing on 2/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

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Filter for what you want

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Asiana Airlines flights from Seattle to South Korea

Our best Asiana Airlines deals on Seattle to South Korea flight tickets

Air Canada flights from Seattle to South Korea

Our best Air Canada deals on Seattle to South Korea flight tickets

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How to get the cheapest flight ticket from Seattle to South Korea

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to South Korea?

If you aren’t able to travel to South Korea during the month of November, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $900.

What is the cheapest day to depart on your flight to South Korea?

What is the cheapest time of day to depart on your flight to South Korea?

What is the cheapest Seattle/Tacoma Intl to South Korea flight route?

Fly from Seattle/Tacoma Intl to Incheon Intl for the best Seattle/Tacoma Intl - South Korea flight prices

How far in advance should I book a flight to South Korea?

What cabin class options are available on Seattle/Tacoma Intl to South Korea flights?

There are 3 cabin classes available to choose from on Seattle/Tacoma Intl to South Korea flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to South Korea flights?

You could potentially save up to 1% on your flight if you consider stops on a Seattle to South Korea flight.

What is the cheapest airline that flies from Seattle/Tacoma Intl to South Korea?

Hainan Airlines, Korean Air, and Asiana Airlines are the most popular carriers operating from Seattle/Tacoma Intl to South Korea

What airlines fly to South Korea?

How many flights depart from Seattle to South Korea on average per day?

The number of flights available between Seattle and South Korea is 8 per day as of November 2025. The most frequent departure time is 11:00AM, with 47% of daily flights leaving in the afternoon.

How many flights depart from Seattle to South Korea on average per week?

As of November 2025, there are 56 flights per week flying from Seattle to South Korea. The most common day of the week flights depart is Wed, with 18% of flights taking off on this day.

Cheap Seattle to South Korea flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to South Korea

Best Price Found

Fastest flight time

Direct flights

Airports in South Korea

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to South Korea?

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to South Korea?

How old do you have to be to fly from Seattle/Tacoma Intl Airport to South Korea?

What documentation or ID do you need to fly to South Korea?

What is the most popular plane model from Seattle to South Korea?

Best airlines flying from Seattle to South Korea

Compare and see reviews for airlines that fly from Seattle to South Korea with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to South Korea?

Can I find flights from Seattle to South Korea with flexible booking policies on momondo?

How can momondo help me find flights from Seattle to South Korea?

I’m not ready to book a flight from Seattle to South Korea right now. Can momondo alert me if prices change?

An easier way to manage your South Korea trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to South Korea

Popular cities in South Korea

Popular flights according to clicks in the last 7 days on momondo