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 July 2025. The most frequent departure time is 2:00PM, with 100% of daily flights leaving in the afternoon.

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

As of July 2025, there are 60 flights per week flying from Seattle to South Korea. The most common day of the week flights depart is Sat, with 18% of flights taking off on this day.

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

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

What airlines fly to South Korea?

Korean Air, Asiana Airlines and Air Canada 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 44% 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.

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 July 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.

$397 Cheap Flights from Seattle to South Korea in 2025

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Find the cheapest flights from Seattle to South Korea

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

5:30 am - 4:05 pmSEA-ICN

18h 35m1 stop

9:45 am - 6:36 pmICN-SEA

24h 51m2 stops

$715

Find Deal

mié., oct. 1 - mié., oct. 8

10:00 am - 4:05 pmSEA-ICN

14h 05m1 stop

5:45 pm - 6:36 pmICN-SEA

16h 51m1 stop

$739Air Canada

Find Deal

jue., sep. 25 - jue., oct. 16

5:30 am - 4:05 pmSEA-ICN

18h 35m1 stop

9:45 am - 6:36 pmICN-SEA

24h 51m2 stops

$743

Find Deal

mié., oct. 1 - mié., oct. 8

2:30 pm - 5:00 pmSEA-PUS

34h 30m2 stops

7:30 am - 12:45 pmPUS-SEA

21h 15m2 stops

$934Asiana Airlines

Find Deal

mié., ago. 13 - jue., ago. 28

2:30 pm - 3:30 pmSEA-PUS

33h 00m2 stops

4:30 pm - 12:45 pmPUS-SEA

60h 15m2 stops

$986Asiana Airlines

Find Deal

lun., ago. 4 - lun., ago. 11

1:40 am - 11:15 amSEA-PUS

17h 35m1 stop

12:15 pm - 8:07 amPUS-SEA

35h 52m2 stops

$1,022China Airlines

Find Deal

mar., ago. 26 - mié., sep. 3

1:20 pm - 8:35 pmSEA-TAE

15h 15m1 stop

7:05 am - 10:40 amTAE-SEA

19h 35m1 stop

$1,029Korean Air

Find Deal

mié., ago. 27 - mié., sep. 3

1:20 pm - 7:35 pmSEA-PUS

14h 15m1 stop

7:00 am - 10:40 amPUS-SEA

19h 40m1 stop

$1,032Korean Air

Find Deal

mié., ago. 27 - mié., sep. 3

7:28 am - 7:35 pmSEA-PUS

20h 07m2 stops

8:45 am - 4:00 pmPUS-SEA

23h 15m2 stops

$1,091Delta

Find Deal

mié., ago. 27 - mié., sep. 3

1:40 am - 11:15 amSEA-PUS

17h 35m1 stop

8:00 pm - 7:45 pmPUS-SEA

15h 45m1 stop

$1,137China Airlines

Find Deal

mar., ago. 12 - jue., ago. 28

Air Canada flights from Seattle to South Korea

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

Air Canada

Sep 25

SEA10:00 amSeattle/Tacoma Intl

14h 05m

1 stop

ICN4:05 pmIncheon Intl

Oct 16

ICN5:45 pmIncheon Intl

16h 51m

1 stop

SEA6:36 pmSeattle/Tacoma Intl

$739

Find similar

Air Canada

Sep 7

SEA7:15 pmSeattle/Tacoma Intl

28h 50m

1 stop

ICN4:05 pmIncheon Intl

Sep 21

ICN5:45 pmIncheon Intl

16h 51m

1 stop

SEA6:36 pmSeattle/Tacoma Intl

$776

Find similar

Air Canada

Sep 7

SEA5:30 amSeattle/Tacoma Intl

18h 35m

1 stop

ICN4:05 pmIncheon Intl

Sep 16

ICN5:45 pmIncheon Intl

12h 31m

1 stop

SEA2:16 pmSeattle/Tacoma Intl

$777

Find similar

Asiana Airlines flights from Seattle to South Korea

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

Asiana Airlines

Jul 24

SEA2:30 pmSeattle/Tacoma Intl

11h 25m

ICN5:55 pmIncheon Intl

Aug 30

ICN6:20 pmIncheon Intl

10h 25m

SEA12:45 pmSeattle/Tacoma Intl

$924

Find similar

Asiana Airlines

Jul 26

SEA2:30 pmSeattle/Tacoma Intl

11h 25m

ICN5:55 pmIncheon Intl

Aug 2

ICN6:20 pmIncheon Intl

10h 25m

SEA12:45 pmSeattle/Tacoma Intl

$927

Find similar

Asiana Airlines

Aug 13

SEA2:30 pmSeattle/Tacoma Intl

34h 30m

2 stops

PUS5:00 pmBusan Gimhae

Aug 28

PUS7:30 amBusan Gimhae

21h 15m

2 stops

SEA12:45 pmSeattle/Tacoma Intl

$934

Find similar

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 February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $974.

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 $879. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to South Korea for around $1,033.

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 $763 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 $1,205 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 $995 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?

No. A direct flight is the cheapest option for a flight between Seattle to South Korea.

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	$397
Fastest flight time	11h 25m
Direct flights	Every day
Airports in South Korea	5 airports

The best one-way flight to South Korea from Seattle in the past 72 hours is $397. The best round-trip flight deal from Seattle to South Korea found on momondo in the last 72 hours is $715.

The fastest flight from Seattle to South Korea takes 11h 25m

Direct flights go from Seattle to South Korea every day.

There are 5 airports near South Korea: Incheon Intl (ICN), Daegu (TAE), Seoul Gimpo Intl (GMP), Busan Gimhae (PUS), Jeju City (CJU)

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 July 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 787-10 Dreamliner (26.94% of total bookings). The next most popular plane models are Airbus A350-900 (19.33%), Boeing 787-9 Dreamliner (18.52%), and Boeing 777-200LR (14.78%).

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 8.0 7,953 reviews	Search Delta flights
Alaska Airlines	PriceFrom $182	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $282	Free Cancellation	Rating 7.4 8,856 reviews	Search United Airlines flights
Hawaiian Airlines	PriceFrom $763	Free Cancellation	Rating 7.8 2,571 reviews	Search Hawaiian Airlines flights
Air Canada	PriceFrom $809	Free Cancellation	Rating 7.1 9,717 reviews	Search Air Canada flights
China Airlines	PriceFrom $835	Free Cancellation	Rating 8.3 744 reviews	Search China Airlines flights
Asiana Airlines	PriceFrom $906	Free Cancellation	Rating 8.2 454 reviews	Search Asiana Airlines flights
Korean Air	PriceFrom $966	Free Cancellation	Rating 8.4 1,109 reviews	Search Korean Air flights
Turkish Airlines	PriceFrom $970	Free Cancellation	Rating 7.3 3,901 reviews	Search Turkish Airlines flights
EVA Air	PriceFrom $978	Free Cancellation	Rating 8.4 1,214 reviews	Search EVA Air 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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Popular cities in South Korea

Flights to Seoulfrom $482

Flights to Jeju Cityfrom $758

Flights to Busanfrom $690

Flights to Gwangjufrom $1,479

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Cheap flights from Seattle to South Korea from $397

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 9/6. 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

Filter for what you want

Filter for what you want

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Find the cheapest flights from Seattle to South Korea

Cheap round-trip flights

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Air Canada flights from Seattle to South Korea

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

Asiana Airlines flights from Seattle to South Korea

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

See travel insights to South Korea from

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 February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $974.

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?

No. A direct flight is the cheapest option for a flight between Seattle to South Korea.

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

WestJet, Asiana Airlines, and Korean Air 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 July 2025. The most frequent departure time is 2:00PM, with 100% of daily flights leaving in the afternoon.

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

As of July 2025, there are 60 flights per week flying from Seattle to South Korea. The most common day of the week flights depart is Sat, 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