Cheap flights from Seattle to Incheon Intl Airport
Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Incheon Intl are usually found in February or April, booked 18 days in advance, depart on a Thursday or Monday and return on a Friday
Cheap flight deals from Seattle to Incheon Intl
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Incheon Intl (ICN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 3 July 2025.
Popular in | June |
|---|---|
Cheapest in | February |
Average price | C$ 1,893 |
Good round-trip deal | C$ 1,239 or less |
Good one-way deal | C$ 724 or less |
Best time to book a flight from Seattle to Incheon Intl
Have a flexible travel schedule? Discover the best time to fly to Incheon Intl from Seattle with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Seattle to Incheon Intl Airport
How far ahead should I book a flight from Seattle to Incheon Intl Airport?
Use this chart to determine the optimal time to book a round-trip flight from Seattle to Incheon Intl. Price data was last updated on 27 June 2025.
The best time to book flights from Seattle to Incheon Intl Airport is 18 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Seattle to Incheon Intl Airport?
Currently, May is the cheapest month in which you can book a flight from Seattle to Incheon Intl Airport (average of C$ 1,017). Flying from Seattle to Incheon Intl Airport in December is currently the most expensive (average of C$ 1,537). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SEA to ICN?
Find hourly flight availability from Seattle to Incheon Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 July 2025.
One of the essential ways to save on airfare from Seattle to Incheon Intl Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 8% on airfare.
Weekly flight availability from Seattle to Incheon Intl Airport
Explore weekly flight availability from Seattle to Incheon Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 3 July 2025.
The most flights from SEA to ICN are scheduled on a Tuesday (9 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).
Related info for your journey
Find useful and relevant information for your journey from Seattle to Incheon Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Deals for Seattle to Incheon Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from Seattle to Incheon Intl?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Incheon Intl from Seattle.
Can Cheapflights find flights from Seattle to Incheon Intl with no change fees?
Yes! Cheapflights helps users easily find flights from Seattle to Incheon Intl with no change fees.
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