$423 Find Cheap Flights from South Korea to Seattle - Compare and Save

In the last 5 days, the cheapest flight deal to Seattle was found on the route from Incheon, at $801 return. The most popular connection is from Seoul to Seattle and KAYAK users have found round-trip deals for as low as $801 in the last 5 days.

Based on KAYAK data, the cheapest day to fly to Seattle is Monday where round-trip tickets can be as cheap as $721. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are $902 on average.

The cheapest month for flights to Seattle is November, where tickets cost $555 on average for return flights. On the other hand, the most expensive months are June and July, where the average cost of tickets from South Korea is $1,111 and $994 respectively. For one-way flights, the best month to travel is October with an average price of $427.

The cheapest time of day to fly to Seattle is generally in the evening, when round-trip flights cost $760 on average. The most expensive time of day to fly to Seattle is generally at night, which is peak travel time and where the average cost of a ticket is $779.

If you’re looking for cheap airfare to Seattle, 25% of our users found tickets to Seattle for the following prices or less: From Incheon Intl Airport $836 round-trip.

To get a below average price, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

The most popular airline among KAYAK users flying to Seattle is Asiana Airlines, followed by Korean Air and Alaska Airlines.

Of the 4 airlines that fly to Seattle, Delta offers the most flights, with around 7 per week, followed by Korean Air with 7 flights per week.

The duration of your flight to Seattle depends on your departure and arrival airports. Obviously, any flights that include a layover will also be longer. The most popular routes to Seattle on KAYAK are from Incheon, which takes 9h 50m, Busan, which takes 13h 07m, and Seoul, which takes 17h 45m.

There are around 1,920 direct flights from within South Korea to Seattle every day. Most flights depart in the morning, with 47% of flights departing in the morning.

Each week there are around 13,435 direct flights from within South Korea to Seattle. The most common day for departures is Sunday, with 17% of flights taking off on this day.

There are not any medium-haul (3-6 hour flight duration) or short-haul (up to 3 hour flight duration) flights to Seattle. Instead, there are 70 long-haul flights (6-12 hour flight duration), with the most arriving from Seoul.