$1,352 Cheap Air France flights Seattle (SEA) to Seoul (ICN)

Landing cheap one-way Air France flights from SEA to ICN from $1,352 on Expedia is a breeze — just filter by "Price (lowest to highest)." Or check out our affordable return fares for your next exciting vacation.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Search for Air France flights from SEA to ICN about one month before you want to go. The most affordable time to reserve an international flight is generally 18 to 29 days ahead of your travel date when you can save 17% versus booking four to five months in advance. No matter your fare class and itinerary, the best day of the week to book international airfare is usually Sunday. Friday is often the most expensive. Travelers who book on a Sunday can save 17% on average compared to those who book on a Friday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.

Search Air France's earliest flights from SEA to ICN by checking the "Early Morning" and "Morning" filters. Not only will you get to where you're going sooner, early departures are also 20% less likely to be canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.

Taking off from SEA to ICN with Air France comes with a range of perks, such as a 4-star airline rating and a rewarding loyalty program. Plus, when booking through Expedia, One Key™ members can earn OneKeyCash™* to spend on select future travel purchases. That's in addition to the Air France Flying Blue points you can earn with Air France.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.