Cheap flights from Seattle to Seoul

Seattle-Tacoma
SEA
Seoul
SEL

Flight deals from Seattle to Seoul

Below you can see the best deals on flights Seattle — Seoul for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 15 September, from $429.

Top 10 cheap flights from Seattle to Seoul

DL
UA
$ 444

Seattle — Seoul

20:30—15:00
8 Sep 2026
26 h 30 m
1 stop
DL
UA
$ 444

Seattle — Seoul

17:47—04:20
5 Sep 2026
18 h 33 m
1 stop
DL
UA
$ 444

Seattle — Seoul

14:40—04:20
5 Sep 2026
21 h 40 m
1 stop
DL
UA
$ 444

Seattle — Seoul

08:25—04:20
5 Sep 2026
27 h 55 m
1 stop
DL
UA
$ 444

Seattle — Seoul

17:48—04:20
12 Sep 2026
18 h 32 m
1 stop
DL
UA
$ 444

Seattle — Seoul

11:33—04:20
12 Sep 2026
24 h 47 m
1 stop
DL
UA
$ 444

Seattle — Seoul

08:25—04:20
12 Sep 2026
27 h 55 m
1 stop
DL
UA
$ 444

Seattle — Seoul

17:48—15:00
12 Sep 2026
29 h 12 m
1 stop
DL
UA
$ 444

Seattle — Seoul

11:33—15:00
12 Sep 2026
35 h 27 m
1 stop
DL
UA
$ 444

Seattle — Seoul

08:25—15:00
12 Sep 2026
38 h 35 m
1 stop

Prices were found in the last 72 hours and may change — check the exact price when you continue.

When is the best time to book a flight from Seattle to Seoul?

The price of a flight from Seattle to Seoul changes depending on how far ahead you book. For the best chance of a lower fare, book around 30 days before departure, when the average ticket costs about $660. Fares also tend to climb as the departure date gets closer.

About the Seattle — Seoul flight

Looking for cheap flights from Seattle to Seoul? Compare fares from different airlines, check the flight schedule and travel time — and book your Seattle — Seoul ticket online at the best price.

The route has direct flights — around 93 flights per week, flights are operated by Korean Air, Alaska Airlines, Delta, Asiana Airlines and 4 more airlines, a nonstop flight takes about 11 h 20 min, the distance between the cities is around 8,344 km.

Planning your trip? You may find our Seoul travel guide, how to get from the airport into town and Seoul weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $429Min. price
SeptemberCheapest
AprilPeak season
YesDirect flights
8,344 kmDistance
11 h 20 minTravel time
8Airlines
93 / wkFlights

Flight schedule from Seattle to Seoul

The table shows direct flights from Seattle to Seoul on the selected date. The flight takes approximately 11 h 20 min. Regular flights are operated by Korean Air, Alaska Airlines, Delta and Asiana Airlines. Departures from Seattle-Tacoma International Airport and Paine Field airports, arrivals at Incheon International Airport and Gimpo International Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today
Any time
Last update: 14 Aug 2026

Flight ticket prices by day: Seattle — Seoul

Below is a calendar of the lowest flight ticket prices for Seattle — Seoul by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $429 in September, and the most expensive are around $605 in April. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from Seattle to Seoul by month. Tickets are usually cheapest in November (around $489) and priciest in July (about $754) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$530mediumMay$698highSep$642medium
Feb$670highJun$726highOct$503low
Mar$503lowJul$754highNov$489low
Apr$586mediumAug$726highDec$670high

Some values are estimated based on seasonality.

When to fly

Weather in Seoul: it is warmest in August (up to 29 °C on average) and coolest in January (around 2 °C). The driest month is January.

Tickets are usually cheapest in September and most expensive in April. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · Seoul

Dry and wet days · Seoul

Wind speed and direction · Seoul

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How to get the best deal on a Seattle — Seoul ticket

  • Book ahead: fares for Seattle — Seoul are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • Seattle is served by more than one airport — compare fares and travel time to each before you book.
  • The cheapest month to fly to Seoul is usually September — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the Seattle — Seoul route are operated by 8 airlines; Korean Air runs the most flights (around 28% of all flights). Compare carriers, flight shares and schedules below.

  • Korean AirKE
    9x/week
    WebsiteFleet: 16025M pax/year
    • Direct flight SEA → ICN9x/week
      Duration
      11h 31m
      Days
      MTWTFSS
    28.0%Open →
  • Alaska AirlinesAS
    8x/week
    WebsiteFleet: 31545M pax/year
    • Direct flight SEA → ICN8x/week
      Duration
      11h 46m
      Days
      MTWTFSS
    24.7%Open →
  • DeltaDL
    5x/week
    WebsiteFleet: 986190M pax/year
    • Direct flight SEA → ICN5x/week
      Duration
      11h 34m
      Days
      MTWTFSS
    16.1%Open →
  • Asiana AirlinesOZ
    5x/week
    WebsiteFleet: 6916M pax/year
    • Direct flight SEA → ICN5x/week
      Duration
      11h 51m
      Days
      MTWTFSS
    15.1%Open →
  • Hawaiian AirlinesHA
    4x/week
    WebsiteFleet: 7511M pax/year
    • Direct flight SEA → ICN4x/week
      Duration
      11h 55m
      Days
      MTWTFSS
    12.9%
  • Singapore AirlinesSQ
    1x/week
    WebsiteFleet: 16325M pax/year
    • Direct flight SEA → ICN1x/week
    1.1%Open →
  • Thai AirwaysTG
    1x/week
    WebsiteFleet: 7715M pax/year
    • Direct flight SEA → ICN1x/week
    1.1%Open →
  • United AirlinesUA
    1x/week
    WebsiteFleet: 956165M pax/year
    • Direct flight SEA → ICN1x/week
    1.1%Open →

Cities and airports on the Seattle — Seoul route

Flights Seattle — Seoul depart from Seattle-Tacoma International Airport and Paine Field and arrive at Incheon International Airport and Gimpo International Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Seattle

SEA
United States
About the cityHow to get thereWeatherAll about the country United States
Arrival

Seoul

SEL
Korea, Republic Of
About the cityHow to get thereWeatherAll about the country Korea, Republic Of
Departure airports
Arrival airports

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Frequently asked questions about the Seattle — Seoul flight

How long is the flight from Seattle to Seoul?

A nonstop Seattle — Seoul flight takes about 11 h 20 min — the distance between the cities is around 8,344 km.

How far is it from Seattle to Seoul?

The distance from Seattle to Seoul is about 8,344 km, which a nonstop flight covers in around 11 h 20 min.

Are there direct flights from Seattle to Seoul?

Yes, there are nonstop flights Seattle — Seoul — around 93 flights per week.

Which airlines fly from Seattle to Seoul?

Airlines operating Seattle — Seoul include Korean Air, Alaska Airlines, Delta, Asiana Airlines, Hawaiian Airlines. See the full list with schedules in the "Airlines" section on this page.

Which airports do Seattle — Seoul flights use?

Flights from Seattle depart from Seattle-Tacoma International Airport, Paine Field, and arrive at Incheon International Airport, Gimpo International Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Seattle to Seoul?

The price of a Seattle — Seoul ticket depends on your travel date, season and demand: it is usually cheapest to fly in September, and most expensive in April. Tickets typically cost between $429 and $605. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Seattle — Seoul?

Flights Seattle — Seoul are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is September. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Seattle to Seoul?

To catch a low fare Seattle — Seoul, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually September.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

Where else you can fly from Seattle

See all
Los AngelesAnchorageVancouverSan FranciscoPhoenixSan DiegoSan JoseSpokanePortlandSanta AnaNew York CityBoiseDenverChicagoDallasSalt Lake CitySacramentoLas VegasRedmondBostonAtlantaHonoluluWashington, D.C.MinneapolisPascoBurbankAustinFairbanksJuneauEugeneNashvilleHoustonCalgaryBozemanDetroitPalm SpringsMissoulaMedfordRenoOrlando

Where else you can fly from Seoul

See all
Jeju CityTokyoOsakaShanghaiBusanHong KongFukuokaBangkokQingdaoTaipeiBeijingDa NangHo Chi Minh CitySingaporeHanoiNagoyaNha TrangUlaanbaatarManilaLos AngelesSapporoCebu CityKuala LumpurPhu QuocDenpasarOkinawaHagatnaGuangzhouDalianYanjiJakartaNew York CityShenzhenMacauYantaiTashkentSan FranciscoShenyangKaohsiungParis

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