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Cheap flights from Incheon Intl Airport to Seattle from $388

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Incheon Intl Airport to Seattle 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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Find the cheapest flights from Incheon Intl Airport to Seattle

Cheap round-trip flights

These are some of the best round-trip flight deals from Incheon Intl Airport to Seattle 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 Incheon Intl Airport to Seattle.

Cheap last minute flights

Planning a quick getaway from Incheon Intl Airport to Seattle? 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 Seattle, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Incheon Intl Airport to Seattle

Find recent round-trip train or bus tickets from Incheon Intl Airport to Seattle.

All round-trip flight deals to Seattle

The cheapest plane tickets to Seattle found on KAYAK recently.
6:15 pm - 11:55 amICN-SEA
9h 40mnonstop
1:45 pm - 5:50 pmSEA-ICN
12h 05mnonstop
$596Asiana Airlines
Find Deal
Thu, Mar 20 - Tue, Mar 25
12:45 pm - 6:29 pmICN-SEA
22h 44m1 stop
3:24 pm - 4:15 pmSEA-ICN
31h 51m1 stop
$616United Airlines
Find Deal
Thu, Feb 27 - Wed, Mar 5
8:05 pm - 1:19 pmICN-SEA
10h 14mnonstop
10:41 am - 4:15 pmSEA-ICN
12h 34mnonstop
$632Delta
Find Deal
Tue, Jan 28 - Thu, Jan 30
4:55 pm - 2:30 pmICN-SEA
14h 35m1 stop
7:15 pm - 4:05 pmSEA-ICN
28h 50m1 stop
$645Air Canada
Find Deal
Fri, Feb 28 - Thu, May 29
4:55 pm - 2:30 pmICN-SEA
14h 35m1 stop
7:15 pm - 4:05 pmSEA-ICN
28h 50m1 stop
$646Air Canada
Find Deal
Thu, Mar 6 - Thu, May 29
8:05 pm - 1:30 pmICN-SEA
10h 25mnonstop
10:44 am - 4:15 pmSEA-ICN
12h 31mnonstop
Fri, Feb 14 - Mon, Feb 17
8:05 pm - 1:19 pmICN-SEA
10h 14mnonstop
6:10 am - 5:40 pmSEA-ICN
18h 30m1 stop
$667Delta
Find Deal
Tue, Jan 28 - Wed, Feb 26
4:10 pm - 9:00 amICN-SEA
9h 50mnonstop
11:00 am - 3:55 pmSEA-ICN
11h 55mnonstop
$685Korean Air
Find Deal
Mon, Feb 10 - Thu, Feb 27
4:40 pm - 10:50 amICN-SEA
10h 10mnonstop
1:00 pm - 4:40 pmSEA-ICN
11h 40mnonstop
$688Korean Air
Find Deal
Tue, Apr 8 - Tue, Apr 22
8:05 pm - 2:40 pmICN-SEA
10h 35mnonstop
12:40 am - 3:30 pmSEA-ICN
22h 50m1 stop
Thu, Mar 20 - Mon, Mar 24
6:55 pm - 3:35 pmICN-SEA
37h 40m2 stops
Wed, Feb 5
6:55 pm - 1:12 pmICN-SEA
35h 17m2 stops
Wed, Feb 12
6:15 pm - 12:35 pmICN-SEA
10h 20mnonstop
$577Asiana Airlines
Find Deal
Fri, May 9
6:15 pm - 10:55 amICN-SEA
9h 40mnonstop
$582Asiana Airlines
Find Deal
Tue, Dec 24
4:40 pm - 10:50 amICN-SEA
10h 10mnonstop
$600Korean Air
Find Deal
Mon, Apr 28
8:35 pm - 5:26 amICN-SEA
24h 51m2 stops
$641Delta
Find Deal
Fri, Mar 14
8:35 pm - 9:55 pmICN-SEA
18h 20m1 stop
$642Delta
Find Deal
Tue, Feb 18
6:00 pm - 7:05 pmICN-SEA
18h 05m1 stop
$648United Airlines
Find Deal
Tue, Dec 24
4:10 pm - 9:00 amICN-SEA
9h 50mnonstop
$693Korean Air
Find Deal
Fri, Jan 24
4:50 pm - 2:00 pmICN-SEA
37h 10m2 stops
$711United Airlines
Find Deal
Sat, May 10
12:45 pm - 11:30 amICN-SEA
15h 45m1 stop
6:13 pm - 4:15 pmSEA-ICN
29h 02m1 stop
$617United Airlines
Find Deal
Thu, Dec 19 - Mon, Dec 30
8:05 pm - 1:13 pmICN-SEA
10h 08mnonstop
10:41 am - 4:15 pmSEA-ICN
12h 34mnonstop
$633Delta
Find Deal
Thu, Dec 19 - Thu, Jan 2
6:15 pm - 10:55 amICN-SEA
9h 40mnonstop
1:45 pm - 5:50 pmSEA-ICN
12h 05mnonstop
$702Asiana Airlines
Find Deal
Wed, Dec 18 - Sat, Mar 15
8:05 pm - 1:13 pmICN-SEA
10h 08mnonstop
10:40 am - 4:15 pmSEA-ICN
12h 35mnonstop
$723Korean Air
Find Deal
Thu, Dec 19 - Mon, Dec 30
8:05 pm - 1:13 pmICN-SEA
10h 08mnonstop
10:41 am - 4:15 pmSEA-ICN
12h 34mnonstop
$724Korean Air
Find Deal
Thu, Dec 19 - Wed, Jan 1
6:15 pm - 10:55 amICN-SEA
9h 40mnonstop
12:45 pm - 5:50 pmSEA-ICN
12h 05mnonstop
$734Asiana Airlines
Find Deal
Wed, Dec 18 - Tue, Dec 31
9:25 pm - 5:10 amICN-SEA
24h 45m1 stop
7:00 am - 7:25 pmSEA-ICN
19h 25m1 stop
$876Hawaiian Airlines
Find Deal
Fri, Dec 20 - Fri, Jan 10
9:25 pm - 5:10 amICN-SEA
24h 45m1 stop
7:00 am - 7:25 pmSEA-ICN
19h 25m1 stop
$902Hawaiian Airlines
Find Deal
Fri, Dec 20 - Thu, Jan 16
4:55 pm - 9:50 amICN-SEA
33h 55m1 stop
7:15 pm - 3:15 pmSEA-ICN
27h 00m1 stop
$1,169Air Canada
Find Deal
Fri, Dec 20 - Sat, Dec 28
4:55 pm - 2:25 pmICN-SEA
14h 30m1 stop
5:45 am - 3:15 pmSEA-ICN
16h 30m1 stop
$1,271Air Canada
Find Deal
Fri, Dec 20 - Fri, Jan 3
6:15 pm - 11:55 amICN-SEA
9h 40mnonstop
1:45 pm - 5:50 pmSEA-ICN
12h 05mnonstop
$596Asiana Airlines
Find Deal
Thu, Mar 20 - Tue, Mar 25
6:15 pm - 10:55 amICN-SEA
9h 40mnonstop
12:45 pm - 5:50 pmSEA-ICN
12h 05mnonstop
$619Asiana Airlines
Find Deal
Thu, Feb 6 - Thu, Feb 13
6:15 pm - 10:55 amICN-SEA
9h 40mnonstop
12:45 pm - 5:50 pmSEA-ICN
12h 05mnonstop
$620Asiana Airlines
Find Deal
Tue, Feb 11 - Fri, Feb 21
6:15 pm - 11:55 amICN-SEA
9h 40mnonstop
2:00 pm - 5:45 pmSEA-ICN
11h 45mnonstop
$621Asiana Airlines
Find Deal
Tue, Mar 25 - Mon, Mar 31
8:05 pm - 1:19 pmICN-SEA
10h 14mnonstop
10:41 am - 4:15 pmSEA-ICN
12h 34mnonstop
$632Delta
Find Deal
Tue, Jan 28 - Thu, Jan 30
8:05 pm - 1:30 pmICN-SEA
10h 25mnonstop
10:44 am - 4:15 pmSEA-ICN
12h 31mnonstop
Fri, Feb 14 - Mon, Feb 17
8:05 pm - 2:40 pmICN-SEA
10h 35mnonstop
11:40 am - 4:15 pmSEA-ICN
12h 35mnonstop
$666Delta
Find Deal
Mon, Mar 10 - Mon, Mar 24
4:10 pm - 9:00 amICN-SEA
9h 50mnonstop
11:00 am - 3:55 pmSEA-ICN
11h 55mnonstop
$685Korean Air
Find Deal
Mon, Feb 10 - Thu, Feb 27
4:10 pm - 9:00 amICN-SEA
9h 50mnonstop
11:00 am - 3:55 pmSEA-ICN
11h 55mnonstop
$721Korean Air
Find Deal
Tue, Feb 11 - Thu, Feb 20
4:10 pm - 10:00 amICN-SEA
9h 50mnonstop
1:45 pm - 5:50 pmSEA-ICN
12h 05mnonstop
$1,177
Find Deal
Tue, Mar 25 - Tue, Mar 25

Hawaiian Airlines flights from Incheon Intl Airport to Seattle

Our best Hawaiian Airlines deals on Incheon Intl Airport to Seattle flight tickets
Hawaiian Airlines
May 12
ICN9:25 pmIncheon Intl
16h 30m
1 stop
SEA9:55 pmSeattle/Tacoma Intl
May 29
SEA8:15 amSeattle/Tacoma Intl
18h 45m
1 stop
ICN7:00 pmIncheon Intl
Hawaiian Airlines
May 23
ICN9:25 pmIncheon Intl
16h 35m
1 stop
SEA10:00 pmSeattle/Tacoma Intl
Jun 1
SEA8:15 amSeattle/Tacoma Intl
18h 45m
1 stop
ICN7:00 pmIncheon Intl
Hawaiian Airlines
May 12
ICN9:25 pmIncheon Intl
35h 25m
1 stop
SEA4:50 pmSeattle/Tacoma Intl
May 16
SEA8:15 amSeattle/Tacoma Intl
18h 45m
1 stop
ICN7:00 pmIncheon Intl

Delta flights from Incheon Intl Airport to Seattle

Our best Delta deals on Incheon Intl Airport to Seattle flight tickets
Delta
Dec 24
ICN8:05 pmIncheon Intl
10h 08m
SEA1:13 pmSeattle/Tacoma Intl
Dec 31
SEA10:40 amSeattle/Tacoma Intl
12h 35m
ICN4:15 pmIncheon Intl
Delta
Dec 19
ICN8:05 pmIncheon Intl
10h 08m
SEA1:13 pmSeattle/Tacoma Intl
Jan 2
SEA10:41 amSeattle/Tacoma Intl
12h 34m
ICN4:15 pmIncheon Intl
Delta
Dec 23
ICN8:05 pmIncheon Intl
10h 08m
SEA1:13 pmSeattle/Tacoma Intl
Mar 12
SEA11:40 amSeattle/Tacoma Intl
12h 35m
ICN4:15 pmIncheon Intl

See travel insights to Seattle from

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

What is the cheapest month to fly to Seattle?

In general, November is the cheapest month to fly from Incheon Intl Airport to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $768. If you don’t want to visit Seattle in November, then you should wait until October to fly from Incheon Intl Airport, when ticket prices are also cheap, with an average price of $769.

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

On average, the least expensive day to fly to Seattle from Incheon Intl Airport is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $867. 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 Incheon Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,135.

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

Flying to Seattle from Incheon Intl Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as $922 when looking at flights departing in the morning. Flights to Seattle are more costly in the evening, with an average ticket price of $1,077. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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

Fly from Incheon Intl to Seattle/Tacoma Intl for the best Incheon Intl - 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 Incheon Intl Airport when booking 45 days ahead of your departure date. In general, you can expect to find flights to Seattle for around $1,025 when searching 45 days out. Keep in mind that you might be able to find cheaper flights to Seattle at any time. In fact, our users found flights for as low as $810 in the past 72 hours.

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

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

You could potentially save up to 32% on your flight if you consider stops on a Incheon Intl Airport to Seattle flight.

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

As of December 2024, prices for Incheon Intl Airport to Seattle flights are approximately 30% cheaper when compared to flights at the same time last year.

When to book flights from Incheon Intl Airport to Seattle

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

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

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

Best Price Found

$388

Fastest flight time

9h 40m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Incheon Intl Airport in the past 72 hours is $388. The best round-trip flight deal from Incheon Intl Airport to Seattle found on momondo in the last 72 hours is $596.
The fastest flight from Incheon Intl Airport to Seattle takes 9h 40m
Direct flights go from Incheon Intl Airport to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

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

    The distance between Incheon Intl and Seattle/Tacoma Intl is about 5192.0 mi. By plane, this route typically takes 9h 40m.

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

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Incheon Intl Airport 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 Incheon Intl Airport to Seattle?

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


Best airlines flying from Incheon Intl Airport to Seattle

Compare and see reviews for airlines that fly from Incheon Intl Airport to Seattle with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $538Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $615Free CancellationRating
7.4
9,070 reviews
Search United Airlines flights
Asiana AirlinesPriceFrom $666Free CancellationRating
8.3
477 reviews
Search Asiana Airlines flights
DeltaPriceFrom $690Free CancellationRating
8.0
8,615 reviews
Search Delta flights
Korean AirPriceFrom $706Free CancellationRating
8.4
1,018 reviews
Search Korean Air flights
Air CanadaPriceFrom $748Free CancellationRating
7.0
8,371 reviews
Search Air Canada flights
  • Korean Air Flights From Incheon Intl Airport to Seattle

    The lowest priced Korean Air flight from Incheon Intl Airport to Seattle from the last 72 hours was $706. Generally, Korean Air has 14 flights on this route every week with an average price of $1,237. Korean Air is rated 8.4/10 by our users.

  • Asiana Airlines Flights From Incheon Intl Airport to Seattle

    Asiana Airlines is also a popular choice for this route. Asiana Airlines flight deals for Incheon Intl Airport to Seattle start from as low as $666 round-trip, depending on your selected dates, with average Asiana Airlines deals seen on momondo around $1,076. Asiana Airlines operates 4 flights to Seattle from Incheon Intl Airport in an average week. Users have rated it 8.3/10 across 477 reviews.


Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seoul to Seattle. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Seoul to Seattle flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Seattle from Seoul. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Seoul to Seattle flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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