SeattleSeoul, South Korea

Flights from Seattle to Seoul

Nonstop flights from Seattle (SEA) to Seoul (ICN) take about 10h 58m (8,373 km). Korean Air flies it. Lowest fare seen: $551 one-way, nonstop (22 Oct 2026).

All flights from Seattle →All flights to Seoul →

Photo of Seoul: Henry Acevedo on Pexels.

When you land in Seoul

The airport transfer and the few things worth sorting before you fly.

Red facade of Seoul Square with multiple international flags displayed. — arriving in Seoul

Airport transfer

ICN → Seoul, booked before you fly

A private driver meets you in arrivals at a price agreed when you book. Book with Welcome Pickups.

See transfer prices

Alaska Airlines plane soaring through a bright sky with fluffy clouds in Seattle. — lounges at Seattle Airport

Seattle Airport · 2 lounges

Before you flyAirport lounges at Seattle →

Early arrival or late flightLuggage storage in Seoul →2 drop-off points, from ₩5100.00

Things to book in Seoul

All 24 things to do in Seoul →

from €53.56

Day Trips from Seoul 4.7 · 24 Tiqets reviews

from €34.81

Gyeongbokgung Palace 3.2 · 5 Tiqets reviews

from €12.91

N Seoul Tower 3.6 · 5 Tiqets reviews

from €8.69

Seoul Airport transfers 5.0 · 4 Tiqets reviews

Find hotels in Seoul

Hotels, hostels & more · Trip.com

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Airlines flying Seattle to Seoul

Carriers on SEA–ICN according to our route data and nonstop fares seen as of 22 Oct 2026. Not a complete list.

✈ Korean Airnonstop fare seen

Seattle to Seoul fares by month

Cheapest month seen for a nonstop flight: Nov 2026, from $551 one-way. With stops: Jan 2027, from $418. Lowest one-way fares seen for departures in each month, read 22 Oct 2026.

Departing	Nonstop from	Cheaper with stops
Nov 2026	$55114 Nov 2026 · Korean Air	$447 · 1 stop2 Nov 2026
Dec 2026	$6951 Dec 2026 · Korean Air	$534 · 1 stop1 Dec 2026
Jan 2027	$60613 Jan 2027 · Korean Air	$418 · 1 stop13 Jan 2027

When to go for the lowest fare

Fares were close across the months we saw: $447 for November 2026, $418 at best after that.

Nonstop or with a stop

A connection undercut nonstop in 3 of 3 months with both fares.

From Travelpayouts flight-search data, city to city (Seattle to Seoul, any airport), USD, read 22 Oct 2026. These are fares that were on sale, not a guarantee of today's price; an airline is named only where we know it flies this route.

Best time to fly to Seoul

Based on weather and travel conditions in South Korea

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Best monthsGoodAvoid if possible

Spring and autumn offer mild weather and stunning scenery. Summer (July–August) is hot and rainy; winter is bitterly cold but perfect for ski resorts like Gangwon.

Peak season: April – June, September – November

More for this trip

Frequently asked questions — Seattle to Seoul flights

How long is the flight from Seattle to Seoul?

A nonstop flight from Seattle (SEA) to Seoul (ICN) takes about 10h 58m, covering 8,373 km. That is an estimate from the distance — actual time varies with the airline, aircraft and winds, and connecting itineraries take longer.

How far is Seattle from Seoul by air?

The great-circle distance between Seattle–Tacoma International Airport and Incheon International Airport is 8,373 km (5,203 miles), a ultra long-haul route.

Which airlines fly from Seattle to Seoul?

Airlines with flights or nonstop fares on the SEA–ICN route include Korean Air. This is not a complete list — schedules change by season, so check the current options before booking.

How much does a flight from Seattle to Seoul cost?

The lowest one-way fare seen recently on SEA–ICN was $551 USD with Korean Air (nonstop), departing 14 Nov 2026, found in fare searches as of 22 Oct 2026. Fares change constantly and depend on the date, so check the current price before booking.

What is the cheapest month to fly from Seattle to Seoul?

In fares seen on 22 Oct 2026, departures in January 2027 were cheapest, from $418 one-way, against $534 for December 2026, the dearest month. Fares change daily, so check your own dates.

Is it cheaper to fly nonstop or with a stop from Seattle to Seoul?

In the fares we saw (22 Oct 2026), connecting was cheaper: from $418 with one stop against $551 nonstop, a saving of $133. Nonstop saves the connection time.

Do I need a visa to travel from Seattle to South Korea?

It depends on your passport. Some nationalities can enter South Korea visa-free or get a visa on arrival; others must apply in advance. Use AirConnect's Visa Checker to see the rules for your passport.

What is the best time to visit Seoul?

Spring and autumn offer mild weather and stunning scenery. Summer (July–August) is hot and rainy; winter is bitterly cold but perfect for ski resorts like Gangwon.

Sources: fares from Travelpayouts flight-search data, seen 22 Oct 2026; airlines from each carrier's published network and nonstop fares on sale; distance from OurAirports coordinates; flight time estimated from distance. Fares change daily.

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