Cheap flights from Seoul to Seattle from $391

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seoul to Seattle departing on 10/9. 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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Cheap round-trip flights

Hawaiian Airlines Logo
8:35 pm - 2:45 pmICN-SEA
10h 10mnonstop
Hawaiian Airlines Logo
2:50 pm - 6:35 pmSEA-ICN
11h 45mnonstop
$477Hawaiian Airlines
Find Deal
Sat, Sep 20 - Sat, Sep 27
Hawaiian Airlines Logo
8:35 pm - 2:45 pmICN-SEA
10h 10mnonstop
Hawaiian Airlines Logo
2:50 pm - 6:35 pmSEA-ICN
11h 45mnonstop
$478Hawaiian Airlines
Find Deal
Sat, Sep 20 - Wed, Oct 1
Hawaiian Airlines Logo
9:25 pm - 6:19 amICN-SEA
24h 54m1 stop
Hawaiian Airlines Logo
2:50 pm - 6:35 pmSEA-ICN
11h 45mnonstop
$479Hawaiian Airlines
Find Deal
Fri, Sep 19 - Sat, Sep 20
Asiana Airlines Logo
9:00 pm - 1:55 pmICN-SEA
9h 55mnonstop
Asiana Airlines Logo
12:10 am - 5:20 amSEA-ICN
12h 10mnonstop
$488Asiana Airlines
Find Deal
Mon, Dec 1 - Wed, Dec 10
Asiana Airlines Logo
9:00 pm - 1:55 pmICN-SEA
9h 55mnonstop
Asiana Airlines Logo
12:10 am - 5:20 amSEA-ICN
12h 10mnonstop
$489Asiana Airlines
Find Deal
Tue, Dec 16 - Sun, Jan 4
Alaska Airlines Logo
8:35 pm - 2:35 pmICN-SEA
10h 00mnonstop
Alaska Airlines Logo
2:55 pm - 6:35 pmSEA-ICN
11h 40mnonstop
$513Alaska Airlines
Find Deal
Thu, Oct 9 - Sat, Oct 18
Alaska Airlines Logo
8:35 pm - 1:25 pmICN-SEA
9h 50mnonstop
Alaska Airlines Logo
1:40 pm - 6:35 pmSEA-ICN
11h 55mnonstop
$518Alaska Airlines
Find Deal
Mon, Dec 1 - Thu, Dec 11
United Airlines Logo
4:50 pm - 1:28 pmICN-SEA
36h 38m1 stop
United Airlines Logo
3:19 pm - 4:20 amSEA-ICN
21h 01m1 stop
$526United Airlines
Find Deal
Sat, Sep 13 - Thu, Sep 18
United Airlines Logo
6:00 pm - 11:26 pmICN-SEA
22h 26m1 stop
United Airlines Logo
7:05 am - 4:15 pmSEA-ICN
16h 10m1 stop
$527United Airlines
Find Deal
Wed, Dec 24 - Fri, Jan 23
Air Canada Logo
5:45 pm - 2:16 pmICN-SEA
12h 31m1 stop
Air Canada Logo
10:00 am - 4:05 pmSEA-ICN
14h 05m1 stop
$545Air Canada
Find Deal
Tue, Sep 9 - Thu, Sep 18

ANA flights from Seoul to Seattle

Our best ANA deals on Seoul to Seattle flight tickets
ANA
Oct 21
GMP7:55 pmSeoul Gimpo Intl
34h 30m
1 stop
SEA2:25 pmSeattle/Tacoma Intl
Nov 4
SEA10:05 amSeattle/Tacoma Intl
19h 25m
2 stops
GMP10:30 pmSeoul Gimpo Intl
ANA
Sep 12
GMP7:40 amSeoul Gimpo Intl
26h 56m
2 stops
SEA6:36 pmSeattle/Tacoma Intl
Dec 24
SEA3:40 pmSeattle/Tacoma Intl
26h 40m
1 stop
GMP11:20 amSeoul Gimpo Intl
ANA
Sep 12
GMP7:40 amSeoul Gimpo Intl
26h 56m
2 stops
SEA6:36 pmSeattle/Tacoma Intl
Nov 28
SEA3:40 pmSeattle/Tacoma Intl
33h 55m
1 stop
GMP6:35 pmSeoul Gimpo Intl

EVA Air flights from Seoul to Seattle

Our best EVA Air deals on Seoul to Seattle flight tickets
EVA Air
Sep 13
GMP1:50 pmSeoul Gimpo Intl
21h 40m
1 stop
SEA7:30 pmSeattle/Tacoma Intl
Sep 24
SEA1:30 amSeattle/Tacoma Intl
19h 20m
1 stop
GMP12:50 pmSeoul Gimpo Intl
EVA Air
Sep 13
GMP1:50 pmSeoul Gimpo Intl
21h 00m
1 stop
SEA6:50 pmSeattle/Tacoma Intl
Sep 24
SEA1:30 amSeattle/Tacoma Intl
19h 20m
1 stop
GMP12:50 pmSeoul Gimpo Intl
EVA Air
Jul 11
GMP1:50 pmSeoul Gimpo Intl
22h 00m
1 stop
SEA7:50 pmSeattle/Tacoma Intl
Aug 7
SEA2:10 amSeattle/Tacoma Intl
18h 40m
1 stop
GMP12:50 pmSeoul Gimpo Intl

See travel insights to Seattle from

How to get the cheapest flight ticket from Seoul to Seattle

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 typical price of a round-trip flight between Seoul and Seattle?

What is the cheapest month to fly to Seattle?

In general, May is the cheapest month to fly from Seoul to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $665. If you don’t want to visit Seattle in May, then you should wait until June to fly from Seoul, when ticket prices are also cheap, with an average price of $666.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Seoul is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $876. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Seoul because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,132.

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

Flying to Seattle from Seoul in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $888 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the evening, with an average ticket price of $1,041. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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

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

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Seoul when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $850 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Seoul for as low as $727 on momondo.

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

There are 4 cabin classes available to choose from on Seoul to Seattle/Tacoma Intl 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 Seoul to Seattle flights?

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

How have Seoul to Seattle flight prices changed over time?

As of July 2025, prices for Seoul to Seattle flights are approximately 37% cheaper when compared to flights at the same time last year.

When to book flights from Seoul to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Seoul to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seoul to Seattle (SEL to SEA) flight deals and tips

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

Best Price Found

$391

Fastest flight time

9h 50m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Seoul in the past 72 hours is $391. The best round-trip flight deal from Seoul to Seattle found on momondo in the last 72 hours is $477.
The fastest flight from Seoul to Seattle takes 9h 50m
Direct flights go from Seoul to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

  • How far is Seoul to Seattle/Tacoma Intl by plane?

    A flight from Seoul to Seattle/Tacoma Intl will travel around 5167.4 mi. By plane, this route typically takes 9h 50m.

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

    Prices for flights from Seoul to Seattle/Tacoma Intl Airport refresh daily.

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

  • How old do you have to be to fly from Seoul to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seoul to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Seoul to Seattle?

  • What is the most popular airline from Seoul to Seattle?


Best airlines flying from Seoul to Seattle

Compare and see reviews for airlines that fly from Seoul to Seattle with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $474Free CancellationRating
7.1
9,695 reviews
Search Air Canada flights
United AirlinesPriceFrom $516Free CancellationRating
7.4
8,846 reviews
Search United Airlines flights
Korean AirPriceFrom $518Free CancellationRating
8.4
1,105 reviews
Search Korean Air flights
Asiana AirlinesPriceFrom $542Free CancellationRating
8.2
454 reviews
Search Asiana Airlines flights
DeltaPriceFrom $643Free CancellationRating
8.0
7,951 reviews
Search Delta flights
  • Korean Air Flights From Seoul to Seattle

    Korean Air operates around 13 flights from Seoul to Seattle every week. The average price of these flights found in the last 72 hours has been $871, but momondo users have found Korean Air deals from Seoul to Seattle from as low as $518 round-trip. Korean Air has been scored 8.4/10 in 1,105 reviews.

  • Asiana Airlines Flights From Seoul to Seattle

    Another popular option for Seoul to Seattle flights is Asiana Airlines (8.2/10, 454 ratings). Asiana Airlines flies from Seoul to Seattle around 3 times per week, with deals starting from $542 round-trip and rising to an average price of around $792.


Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
Tacoma
SeaTac
Ocean Shores
Olympia
Renton
Federal Way
Kent
Lynnwood
Puyallup
Marysville
Tukwila
Kirkland
Lakewood
Fife
Shoreline
Centralia
Cle Elum
Westport
Redmond

Why use momondo?

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

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 Seoul to Seattle for you.

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

momondo does allow users to show only those flights to Seattle from Seoul which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seoul to Seattle?

Once all potential Seoul to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to Seattle from Seoul are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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1 adult
Tue 7/15
Tue 7/22

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