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Cheap flights from Seattle to Incheon Intl Airport from $359

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 Incheon Intl Airport departing on 1/19. 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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Find the cheapest flights from Seattle to Seoul

Cheap round-trip flights

These are some of the best round-trip flight deals from Seattle to Seoul that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Seattle to Seoul.

Cheap last minute flights

Planning a quick getaway from Seattle to Seoul? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Seoul, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Seattle to Seoul

Find recent round-trip train or bus tickets from Seattle to Seoul.

All round-trip flight deals to Seoul

The cheapest plane tickets to Seoul found on KAYAK recently.
1:58 pm - 3:05 pmSEA-ICN
56h 07m2 stops
1:20 pm - 12:37 pmICN-SEA
16h 17m1 stop
Sat, Jan 25 - Tue, Feb 11
1:58 pm - 2:05 pmSEA-ICN
55h 07m2 stops
1:20 pm - 12:37 pmICN-SEA
16h 17m1 stop
Wed, Jan 22 - Wed, Jan 29
2:00 pm - 5:45 pmSEA-ICN
11h 45mnonstop
6:15 pm - 12:35 pmICN-SEA
10h 20mnonstop
$895Asiana Airlines
Find Deal
Tue, Apr 15 - Tue, Apr 29
2:00 pm - 5:45 pmSEA-ICN
11h 45mnonstop
6:15 pm - 12:35 pmICN-SEA
10h 20mnonstop
$899Asiana Airlines
Find Deal
Tue, Apr 8 - Mon, Apr 14
3:55 pm - 5:20 amSEA-ICN
20h 25m1 stop
8:05 pm - 1:19 pmICN-SEA
10h 14mnonstop
$906Korean Air
Find Deal
Wed, Jan 8 - Wed, Jan 22
6:15 am - 5:20 pmSEA-ICN
19h 05m1 stop
7:20 pm - 1:35 pmICN-SEA
10h 15mnonstop
$922Korean Air
Find Deal
Tue, Apr 15 - Mon, May 26
5:45 am - 3:15 pmSEA-ICN
16h 30m1 stop
4:55 pm - 2:30 pmICN-SEA
14h 35m1 stop
$965Air Canada
Find Deal
Mon, Jan 27 - Mon, Feb 10
7:05 pm - 3:15 pmSEA-ICN
27h 10m1 stop
5:45 pm - 6:28 pmICN-SEA
16h 43m1 stop
$967Air Canada
Find Deal
Mon, Jan 20 - Wed, Apr 23
10:41 am - 4:15 pmSEA-ICN
12h 34mnonstop
8:05 pm - 1:19 pmICN-SEA
10h 14mnonstop
$988Delta
Find Deal
Wed, Jan 22 - Thu, Jan 30
10:41 am - 4:15 pmSEA-ICN
12h 34mnonstop
8:05 pm - 2:40 pmICN-SEA
10h 35mnonstop
$1,025Delta
Find Deal
Sun, Jan 26 - Tue, Mar 18
1:55 pm - 1:20 pmSEA-ICN
54h 25m3 stops
Sun, Jan 19
1:55 pm - 1:20 pmSEA-ICN
54h 25m3 stops
Sun, Jan 19
1:58 pm - 2:55 pmSEA-ICN
55h 57m2 stops
Sat, Jan 25
5:45 am - 3:15 pmSEA-ICN
16h 30m1 stop
$449Air Canada
Find Deal
Fri, Mar 7
12:45 pm - 5:50 pmSEA-ICN
12h 05mnonstop
$472Asiana Airlines
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Wed, Feb 5
12:45 pm - 5:50 pmSEA-ICN
12h 05mnonstop
$488Asiana Airlines
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Sun, Feb 16
12:50 pm - 4:30 pmSEA-ICN
11h 40mnonstop
$535Korean Air
Find Deal
Mon, May 5
11:00 am - 3:55 pmSEA-ICN
11h 55mnonstop
$542Korean Air
Find Deal
Mon, Jan 27
10:41 am - 4:15 pmSEA-ICN
12h 34mnonstop
$570Delta
Find Deal
Wed, Jan 15
5:45 am - 3:15 pmSEA-ICN
16h 30m1 stop
$604Air Canada
Find Deal
Fri, Feb 14
12:55 am - 4:45 pmSEA-ICN
22h 50m1 stop
6:50 pm - 9:20 pmICN-SEA
19h 30m1 stop
$1,530American Airlines
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Mon, Dec 23 - Wed, Feb 26
7:15 pm - 3:15 pmSEA-ICN
27h 00m1 stop
6:15 pm - 10:55 amICN-SEA
9h 40mnonstop
$1,632
Find Deal
Sat, Dec 21 - Mon, Dec 23
7:00 pm - 6:20 pmSEA-ICN
30h 20m1 stop
12:10 am - 5:05 pmICN-SEA
33h 55m1 stop
$1,643Turkish Airlines
Find Deal
Mon, Dec 23 - Sun, Dec 29
7:00 am - 7:25 pmSEA-ICN
19h 25m1 stop
9:25 pm - 9:20 pmICN-SEA
16h 55m1 stop
$1,714Hawaiian Airlines
Find Deal
Thu, Dec 19 - Wed, Feb 26
7:00 pm - 9:05 amSEA-ICN
45h 05m1 stop
12:10 am - 5:05 pmICN-SEA
33h 55m1 stop
$1,803Turkish Airlines
Find Deal
Sun, Dec 22 - Sun, Dec 29
3:45 pm - 5:20 amSEA-ICN
20h 35m1 stop
4:10 pm - 9:00 amICN-SEA
9h 50mnonstop
$1,848Korean Air
Find Deal
Mon, Dec 23 - Mon, Dec 30
5:49 pm - 7:25 pmSEA-ICN
32h 36m1 stop
9:25 pm - 5:10 amICN-SEA
24h 45m1 stop
$1,858Hawaiian Airlines
Find Deal
Sat, Dec 21 - Sat, Dec 28
10:40 am - 4:15 pmSEA-ICN
12h 35mnonstop
4:10 pm - 9:00 amICN-SEA
9h 50mnonstop
$1,890Delta
Find Deal
Sun, Dec 22 - Mon, Dec 30
10:40 am - 4:15 pmSEA-ICN
12h 35mnonstop
9:55 am - 9:03 amICN-SEA
16h 08m1 stop
$1,911Delta
Find Deal
Sun, Dec 22 - Mon, Dec 30
10:40 am - 4:15 pmSEA-ICN
12h 35mnonstop
4:10 pm - 9:00 amICN-SEA
9h 50mnonstop
$1,927Korean Air
Find Deal
Mon, Dec 23 - Mon, Dec 30
2:00 pm - 5:45 pmSEA-ICN
11h 45mnonstop
6:15 pm - 12:35 pmICN-SEA
10h 20mnonstop
$895Asiana Airlines
Find Deal
Tue, Apr 15 - Tue, Apr 29
12:45 pm - 5:50 pmSEA-ICN
12h 05mnonstop
6:15 pm - 10:55 amICN-SEA
9h 40mnonstop
$899Asiana Airlines
Find Deal
Tue, Feb 11 - Tue, Feb 18
2:00 pm - 5:45 pmSEA-ICN
11h 45mnonstop
6:15 pm - 12:35 pmICN-SEA
10h 20mnonstop
$912Asiana Airlines
Find Deal
Tue, Apr 15 - Sun, May 25
11:00 am - 3:55 pmSEA-ICN
11h 55mnonstop
4:10 pm - 9:00 amICN-SEA
9h 50mnonstop
$939Korean Air
Find Deal
Thu, Jan 23 - Thu, Feb 6
10:41 am - 4:15 pmSEA-ICN
12h 34mnonstop
8:05 pm - 1:19 pmICN-SEA
10h 14mnonstop
$960Korean Air
Find Deal
Wed, Jan 22 - Thu, Jan 30
11:00 am - 3:55 pmSEA-ICN
11h 55mnonstop
4:10 pm - 9:00 amICN-SEA
9h 50mnonstop
$966Korean Air
Find Deal
Wed, Feb 5 - Wed, Feb 19
11:00 am - 3:55 pmSEA-ICN
11h 55mnonstop
4:10 pm - 9:00 amICN-SEA
9h 50mnonstop
$974Korean Air
Find Deal
Sun, Feb 2 - Mon, Feb 17
10:41 am - 4:15 pmSEA-ICN
12h 34mnonstop
8:05 pm - 1:19 pmICN-SEA
10h 14mnonstop
$988Delta
Find Deal
Wed, Jan 22 - Thu, Jan 30
10:41 am - 4:15 pmSEA-ICN
12h 34mnonstop
8:05 pm - 2:40 pmICN-SEA
10h 35mnonstop
$1,025Delta
Find Deal
Sun, Jan 26 - Tue, Mar 18
10:44 am - 4:15 pmSEA-ICN
12h 31mnonstop
8:05 pm - 1:30 pmICN-SEA
10h 25mnonstop
$1,061Delta
Find Deal
Fri, Feb 14 - Sun, Feb 16

American Airlines flights from Seattle to Incheon Intl Airport

Our best American Airlines deals on Seattle to Incheon Intl Airport flight tickets
American Airlines
Jan 22
SEA11:50 amSeattle/Tacoma Intl
35h 55m
1 stop
ICN4:45 pmIncheon Intl
Jan 30
ICN6:50 pmIncheon Intl
23h 16m
1 stop
SEA1:06 amSeattle/Tacoma Intl
American Airlines
Jan 22
SEA4:30 pmSeattle/Tacoma Intl
31h 15m
1 stop
ICN4:45 pmIncheon Intl
Jan 30
ICN6:50 pmIncheon Intl
23h 16m
1 stop
SEA1:06 amSeattle/Tacoma Intl
American Airlines
Feb 12
SEA12:43 amSeattle/Tacoma Intl
23h 02m
1 stop
ICN4:45 pmIncheon Intl
Feb 18
ICN6:50 pmIncheon Intl
21h 33m
1 stop
SEA11:23 pmSeattle/Tacoma Intl

Asiana Airlines flights from Seattle to Incheon Intl Airport

Our best Asiana Airlines deals on Seattle to Incheon Intl Airport flight tickets
Asiana Airlines
Apr 15
SEA2:00 pmSeattle/Tacoma Intl
11h 45m
ICN5:45 pmIncheon Intl
Apr 29
ICN6:15 pmIncheon Intl
10h 20m
SEA12:35 pmSeattle/Tacoma Intl
Asiana Airlines
Apr 8
SEA2:00 pmSeattle/Tacoma Intl
11h 45m
ICN5:45 pmIncheon Intl
Apr 14
ICN6:15 pmIncheon Intl
10h 20m
SEA12:35 pmSeattle/Tacoma Intl
Asiana Airlines
Apr 15
SEA2:00 pmSeattle/Tacoma Intl
11h 45m
ICN5:45 pmIncheon Intl
May 26
ICN6:15 pmIncheon Intl
10h 20m
SEA12:35 pmSeattle/Tacoma Intl

See travel insights to Seoul from

How to get the cheapest flight ticket from Seattle to Incheon Intl Airport

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 Incheon Intl Airport?

The cheapest month to fly to Incheon Intl Airport from Seattle is in January. Flight prices, which tend to average around $1,137, are often lower during this time because this is during the off-season. If you are unable to visit Incheon Intl Airport during the month of January, then departing from Seattle during the month February is also very affordable. Most momondo users find prices during this month for around $1,137.

What is the cheapest day to depart on your flight to Incheon Intl Airport?

The cheapest day to depart from Seattle to Incheon Intl Airport is on a Tuesday when prices can be found for as low as $1,262. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $1,330. These prices are subject to change though, so be sure to set up a Price Alert for flights to Incheon Intl Airport.

What is the cheapest time of day to depart on your flight to Incheon Intl Airport?

In the evening is the cheapest time of day to fly from Seattle to Incheon Intl Airport when you can find flight prices for as low as $1,056. Flying to Incheon Intl Airport in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,345 on average. Flights to Incheon Intl Airport from Seattle at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

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

How far in advance should I book a flight to Incheon Intl Airport?

In general, most travelers find the cheapest time to book a flight to Incheon Intl Airport is about 11 days prior to their departure date when tickets on average are $1,339. Keep in mind that you might also find cheap flights to Incheon Intl Airport outside of this time window. In fact, momondo users recently found flights from Seattle to Incheon Intl Airport for $864.

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

There are 3 cabin classes available to choose from on Seattle/Tacoma Intl to Incheon 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 Seattle to Incheon Intl Airport flights?

You could potentially save up to 22% on your flight if you consider stops on a Seattle to Incheon Intl Airport flight.

How have Seattle to Incheon Intl Airport flight prices changed over time?

As of December 2024, prices for Seattle to Incheon Intl Airport flights are approximately 52% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to Incheon Intl Airport

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

Cheap Seattle to Incheon Intl Airport (SEA to ICN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Incheon Intl Airport

Best Price Found

$359

Fastest flight time

11h 40m

Direct flights

Every day
The best one-way flight to Incheon Intl Airport from Seattle in the past 72 hours is $359. The best round-trip flight deal from Seattle to Incheon Intl Airport found on momondo in the last 72 hours is $779.
The fastest flight from Seattle to Incheon Intl Airport takes 11h 40m
Direct flights go from Seattle to Incheon Intl Airport every day.

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

    Seattle/Tacoma Intl and Incheon Intl are 5192.0 mi apart from one another. By plane, this route typically takes 11h 40m.

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

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Incheon Intl Airport.

  • What documentation or ID do you need to fly to Incheon Intl Airport?

    The travel and health documents you'll need for your trip to Incheon Intl Airport 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 Incheon Intl Airport. 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 Incheon Intl Airport?

  • What is the most popular airline from Seattle to Incheon Intl Airport?


Best airlines flying from Seattle to Incheon Intl Airport

Compare and see reviews for airlines that fly from Seattle to Incheon Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Hawaiian AirlinesPriceFrom $600Free CancellationRating
7.9
2,295 reviews
Search Hawaiian Airlines flights
United AirlinesPriceFrom $769Free CancellationRating
7.4
9,059 reviews
Search United Airlines flights
Air CanadaPriceFrom $850Free CancellationRating
7.0
8,382 reviews
Search Air Canada flights
China AirlinesPriceFrom $856Free CancellationRating
8.2
754 reviews
Search China Airlines flights
DeltaPriceFrom $936Free CancellationRating
8.0
8,604 reviews
Search Delta flights
Turkish AirlinesPriceFrom $970Free CancellationRating
7.3
3,907 reviews
Search Turkish Airlines flights
Asiana AirlinesPriceFrom $980Free CancellationRating
8.3
477 reviews
Search Asiana Airlines flights
EVA AirPriceFrom $1,011Free CancellationRating
8.4
1,273 reviews
Search EVA Air flights
Korean AirPriceFrom $1,038Free CancellationRating
8.4
1,018 reviews
Search Korean Air flights
  • Korean Air Flights From Seattle to Incheon Intl Airport

    Korean Air flight deals from Seattle to Incheon Intl Airport start from $1,038 round-trip. Over the 14 Korean Air flights for this route in a normal week, average airfare is usually $1,364 round-trip - but some users have found much cheaper deals with momondo.

  • Asiana Airlines Flights From Seattle to Incheon Intl Airport

    Another popular option for Seattle to Incheon Intl Airport flights is Asiana Airlines (8.3/10, 477 ratings). Asiana Airlines flies from Seattle to Incheon Intl Airport around 6 times per week, with deals starting from $980 round-trip and rising to an average price of around $1,296.


Why use momondo?

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

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 Seoul for you.

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

Yes. All flights to Seoul from Seattle on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seoul from Seattle.

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

Of course. momondo tracks the price of Seattle to Seoul flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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