Find Cheap Flights from Incheon to Seattle – Compare and Save

The cheapest month for flights from Incheon Intl Airport to Seattle is November, where tickets cost £412 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £816 and £734 respectively.

To get a below average price on the flight from Incheon Intl Airport to Seattle, you should book around 2 weeks before departure, which saves you about 7% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Weekly flights between Incheon and Seattle historically see delays in approximately 22% of cases, with the average delay over the past year being 154 minutes.

Typically, flights leaving in the evening tend to face fewer delays, whereas flights at night have historically encountered delays more often.

Statistically, Tuesday is the day of the week with the fewest delays on this flight route, while Friday has typically experienced more delays than other days.

Based on our data, Alaska Airlines have experienced the fewest delays on this route in the past 12 months, with only about 14% of their flights encountering any delays.

There are 2 cabin class options for the route. These are Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Each day, there are between 3 and 4 direct flights that take off from Incheon Intl Airport and land in Seattle, with an average flight time of 10h 21m. The most common departure time is 19:00 and most flights take off in the evening. Each week, there are 25 flights. The most frequent day of departure is Monday, when 16% of all weekly flights depart. The fewest flights depart on a Tuesday.