There are most likely no direct flights on the Seattle — Seoul route
Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Seattle to Seoul. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
The cost of a one-way flight from Seattle to Seoul ranges from $437 (September 2026) to $696 (January 2027). On average, the ticket price is about $535–$1,083.
A non-stop flight is the most convenient and comfortable way to fly from Seattle to Seoul, despite the fact that sometimes flights with transfers can cost significantly less.
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Answers to questions about the route that travelers are most interested in.
We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
Tickets from Seattle to Seoul are getting more expensive each month. From September 2026 to January 2027, the increase reached 59%, with prices now at $696. It's unlikely to get cheaper than the current level.
The most significant price increase was from November 2026 to January 2027 — up 51%. The best time to fly is November 2026–December 2026, when the average price is $479. In December 2026–January 2027, tickets cost around $598.
Given the rising prices, it's best not to delay your purchase. Flying in November 2026–December 2026 can save you up to 20% compared to the most expensive months.
Price variation across months on this route is 17.7%. Your choice of departure month significantly affects the total flight cost.
There are most likely no direct flights on the Seattle — Seoul route
Seattle — Seoul
09/16/2026
Departure
Direct flight
OZ271
starting at $7,727
Seattle — Seoul
09/17/2026
Departure
Direct flight
AS119
starting at $432
Seattle — Seoul
10/04/2026
Departure
Direct flight
KE42
starting at $716
Seattle — Seoul
10/07/2026
Departure
Direct flight
AS119
starting at $1,064
Seattle — Seoul
10/08/2026
Departure
Direct flight
AS119
starting at $851
Seattle — Seoul
10/09/2026
Departure
Direct flight
AS119
starting at $1,143
Seattle — Seoul
11/23/2026
Departure
Direct flight
KE42
starting at $691
Seattle — Seoul
11/24/2026
Departure
Direct flight
KE48
starting at $706
Seattle — Seoul
12/17/2026
Departure
Direct flight
KE42
starting at $1,163
starting at $7,727
starting at $425
starting at $691
starting at $494
starting at $609
starting at $647
starting at $1,065
More than 7 airlines operate flights from Seattle to Seoul, including Asiana Airlines, Alaska Airlines, Korean Air, China Airlines, Frontier Airlines, Eva Air, and Turkish Airlines. This is a popular route, so passengers can choose tickets based on budget and preferences. Ticket prices start from $425, and our service lets you instantly compare all options. The variety of offers simplifies planning: you can choose budget fares or more comfortable options with baggage included or extra services. We help you find the best deals so your trip is cost-efficient.
The cheapest flight ticket from Seattle to Seoul according to data for the last 48 hours costs $425
Often the best time to buy tickets from Seattle to Seoul is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Seattle to Seoul can be found flying in these months: September, November, December.
The fastest flights from Seattle to Seoul start from 11 hours 55 minutes in the air.
The following airlines operate direct flights on the route Seattle — Seoul: Asiana Airlines, Alaska Airlines, Korean Air
The cheapest one-way flight from Seattle to Seoul departs on 09/16/2026, is operated by Alaska Airlines and costs $425
The cheapest roundtrip flight from Seattle to Seoul departs on 06/16/2027, is operated by Cathay Pacific and costs $1,092
Fastest flight from Seattle to Seoul takes 11h 55m
There are direct flights on this route 6 days a week: Su, Mo, Tu, We, Th, and Fr
The distance between Seattle and Seoul is 8321km (5159 miles). There are 35 direct flights from Seattle to Seoul. The time difference between Seattle and Seoul is 17h. Flights from Seattle begin at 1:05 PM. The latest flight from Seattle departs at 12:10 AM
